private static void DumpTransparency(Material material, BabylonPBRMaterial babylonPbrMaterial) { if (material.HasProperty("_Mode")) { var mode = material.GetFloat("_Mode"); if (mode >= 2.0f) { // Transparent Albedo if (babylonPbrMaterial.albedoTexture != null && babylonPbrMaterial.albedoTexture.hasAlpha) { babylonPbrMaterial.useAlphaFromAlbedoTexture = true; } // Material Alpha else { babylonPbrMaterial.alpha = babylonPbrMaterial.albedo[3]; } } else if (mode == 1.0f) { // Cutout // Follow the texture hasAlpha property. } else { // Opaque if (babylonPbrMaterial.albedoTexture != null) { babylonPbrMaterial.albedoTexture.hasAlpha = false; } babylonPbrMaterial.alpha = 1.0f; } } }
private BabylonMaterial DumpPBRMaterial(Material material, Renderer renderer, bool metallic) { if (materialsDictionary.ContainsKey(material.name)) { return(materialsDictionary[material.name]); } var babylonPbrMaterial = new BabylonPBRMaterial { name = material.name, id = Guid.NewGuid().ToString(), albedo = new float[4], useEmissiveAsIllumination = true, useSpecularOverAlpha = true, useRadianceOverAlpha = true, }; babylonPbrMaterial.environmentIntensity = RenderSettings.ambientIntensity; // Albedo if (material.HasProperty("_Color")) { babylonPbrMaterial.albedo = material.color.ToFloat(); } babylonPbrMaterial.albedoTexture = DumpTextureFromMaterial(material, "_MainTex"); // Transparency DumpTransparency(material, babylonPbrMaterial); // Glossiess/Reflectivity DumpGlossinessReflectivity(material, metallic, babylonPbrMaterial); // Occlusion babylonPbrMaterial.ambientTexture = DumpTextureFromMaterial(material, "_OcclusionMap"); if (babylonPbrMaterial.ambientTexture != null && material.HasProperty("_OcclusionStrength")) { babylonPbrMaterial.ambientTexture.level = material.GetFloat("_OcclusionStrength"); } // Emissive if (material.HasProperty("_EmissionColor")) { babylonPbrMaterial.emissive = material.GetColor("_EmissionColor").ToFloat(); } babylonPbrMaterial.emissiveTexture = DumpTextureFromMaterial(material, "_EmissionMap"); // Normal babylonPbrMaterial.bumpTexture = DumpTextureFromMaterial(material, "_BumpMap"); if (babylonPbrMaterial.bumpTexture != null && material.HasProperty("_BumpMapScale")) { babylonPbrMaterial.bumpTexture.level = material.GetFloat("_BumpMapScale"); } // Reflection babylonPbrMaterial.reflectionTexture = DumpReflectionTexture(); materialsDictionary.Add(babylonPbrMaterial.name, babylonPbrMaterial); return(babylonPbrMaterial); }
private void ConvertUnitySkyboxToBabylon(Camera camera, float progress) { // Skybox if ((camera.clearFlags & CameraClearFlags.Skybox) == CameraClearFlags.Skybox) { if (RenderSettings.skybox != null) { if (RenderSettings.skybox.shader.name == "Skybox/Cubemap") { var cubeMap = RenderSettings.skybox.GetTexture("_Tex") as Cubemap; if (cubeMap != null) { var skytex = new BabylonTexture(); CopyTextureCube("sceneSkybox.hdr", cubeMap, skytex); skytex.coordinatesMode = 5; skytex.level = RenderSettings.reflectionIntensity; BabylonMesh skybox = new BabylonMesh(); skybox.indices = new[] { 0, 1, 2, 0, 2, 3, 4, 5, 6, 4, 6, 7, 8, 9, 10, 8, 10, 11, 12, 13, 14, 12, 14, 15, 16, 17, 18, 16, 18, 19, 20, 21, 22, 20, 22, 23 }; skybox.positions = new[] { 50.0f, -50.0f, 50.0f, -50.0f, -50.0f, 50.0f, -50.0f, 50.0f, 50.0f, 50.0f, 50.0f, 50.0f, 50.0f, 50.0f, -50.0f, -50.0f, 50.0f, -50.0f, -50.0f, -50.0f, -50.0f, 50.0f, -50.0f, -50.0f, 50.0f, 50.0f, -50.0f, 50.0f, -50.0f, -50.0f, 50.0f, -50.0f, 50.0f, 50.0f, 50.0f, 50.0f, -50.0f, 50.0f, 50.0f, -50.0f, -50.0f, 50.0f, -50.0f, -50.0f, -50.0f, -50.0f, 50.0f, -50.0f, -50.0f, 50.0f, 50.0f, -50.0f, 50.0f, -50.0f, 50.0f, 50.0f, -50.0f, 50.0f, 50.0f, 50.0f, 50.0f, -50.0f, 50.0f, 50.0f, -50.0f, -50.0f, -50.0f, -50.0f, -50.0f, -50.0f, -50.0f, 50.0f }; skybox.uvs = new[] { 1.0f, 1.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, 1.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, 1.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, 1.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, 1.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, 1.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f }; skybox.normals = new[] { 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, -1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0, 0f }; var skyboxMaterial = new BabylonPBRMaterial() { name = "sceneSkyboxMaterial", id = Guid.NewGuid().ToString(), albedo = new[] { 1.0f, 1.0f, 1.0f, 1.0f }, reflectivity = new[] { 0.0f, 0.0f, 0.0f }, microSurface = 1.0f, directIntensity = 0.0f, specularIntensity = 0.0f, environmentIntensity = 1.0f }; skyboxMaterial.backFaceCulling = false; skybox.materialId = skyboxMaterial.id; skybox.infiniteDistance = true; skyboxMaterial.reflectionTexture = skytex; babylonScene.MeshesList.Add(skybox); babylonScene.MaterialsList.Add(skyboxMaterial); babylonScene.AddTextureCube("sceneSkyboxMaterial"); } } } } }
private void ExportMaterial(MFnDependencyNode materialDependencyNode, BabylonScene babylonScene, bool fullPBR) { MObject materialObject = materialDependencyNode.objectProperty; var name = materialDependencyNode.name; var id = materialDependencyNode.uuid().asString(); RaiseMessage(name, 1); RaiseMessage(materialObject.apiType.ToString(), 1); RaiseVerbose("materialObject.hasFn(MFn.Type.kBlinn)=" + materialObject.hasFn(MFn.Type.kBlinn), 2); RaiseVerbose("materialObject.hasFn(MFn.Type.kPhong)=" + materialObject.hasFn(MFn.Type.kPhong), 2); RaiseVerbose("materialObject.hasFn(MFn.Type.kPhongExplorer)=" + materialObject.hasFn(MFn.Type.kPhongExplorer), 2); Print(materialDependencyNode, 2, "Print ExportMaterial materialDependencyNode"); // Retreive Babylon Material dependency node MFnDependencyNode babylonAttributesDependencyNode = getBabylonMaterialNode(materialDependencyNode); // Standard material if (materialObject.hasFn(MFn.Type.kLambert)) { if (materialObject.hasFn(MFn.Type.kBlinn)) { RaiseMessage("Blinn shader", 2); } else if (materialObject.hasFn(MFn.Type.kPhong)) { RaiseMessage("Phong shader", 2); } else if (materialObject.hasFn(MFn.Type.kPhongExplorer)) { RaiseMessage("Phong E shader", 2); } else { RaiseMessage("Lambert shader", 2); } var lambertShader = new MFnLambertShader(materialObject); RaiseVerbose("typeId=" + lambertShader.typeId, 2); RaiseVerbose("typeName=" + lambertShader.typeName, 2); RaiseVerbose("color=" + lambertShader.color.toString(), 2); RaiseVerbose("transparency=" + lambertShader.transparency.toString(), 2); RaiseVerbose("ambientColor=" + lambertShader.ambientColor.toString(), 2); RaiseVerbose("incandescence=" + lambertShader.incandescence.toString(), 2); RaiseVerbose("diffuseCoeff=" + lambertShader.diffuseCoeff, 2); RaiseVerbose("translucenceCoeff=" + lambertShader.translucenceCoeff, 2); BabylonStandardMaterial babylonMaterial = new BabylonStandardMaterial(id) { name = name, diffuse = lambertShader.color.toArrayRGB() }; // User custom attributes babylonMaterial.metadata = ExportCustomAttributeFromMaterial(babylonMaterial); bool isTransparencyModeFromBabylonMaterialNode = false; if (babylonAttributesDependencyNode != null) { // Transparency mode if (babylonAttributesDependencyNode.hasAttribute("babylonTransparencyMode")) { int transparencyMode = babylonAttributesDependencyNode.findPlug("babylonTransparencyMode").asInt(); babylonMaterial.transparencyMode = transparencyMode; isTransparencyModeFromBabylonMaterialNode = true; } } // Maya ambient <=> babylon emissive babylonMaterial.emissive = lambertShader.ambientColor.toArrayRGB(); babylonMaterial.linkEmissiveWithDiffuse = true; // Incandescence (or Illumination) is not exported if (isTransparencyModeFromBabylonMaterialNode == false || babylonMaterial.transparencyMode != 0) { // If transparency is not a shade of grey (shade of grey <=> R=G=B) if (lambertShader.transparency[0] != lambertShader.transparency[1] || lambertShader.transparency[0] != lambertShader.transparency[2]) { RaiseWarning("Transparency color is not a shade of grey. Only it's R channel is used.", 2); } // Convert transparency to opacity babylonMaterial.alpha = 1.0f - lambertShader.transparency[0]; } // Specular power if (materialObject.hasFn(MFn.Type.kReflect)) { var reflectShader = new MFnReflectShader(materialObject); RaiseVerbose("specularColor=" + reflectShader.specularColor.toString(), 2); RaiseVerbose("reflectivity=" + reflectShader.reflectivity, 2); RaiseVerbose("reflectedColor=" + reflectShader.reflectedColor.toString(), 2); babylonMaterial.specular = reflectShader.specularColor.toArrayRGB(); if (materialObject.hasFn(MFn.Type.kBlinn)) { MFnBlinnShader blinnShader = new MFnBlinnShader(materialObject); babylonMaterial.specularPower = (1.0f - blinnShader.eccentricity) * 256; } else if (materialObject.hasFn(MFn.Type.kPhong)) { MFnPhongShader phongShader = new MFnPhongShader(materialObject); float glossiness = (float)Math.Log(phongShader.cosPower, 2) * 10; babylonMaterial.specularPower = glossiness / 100 * 256; } else if (materialObject.hasFn(MFn.Type.kPhongExplorer)) { MFnPhongEShader phongEShader = new MFnPhongEShader(materialObject); // No use of phongE.whiteness and phongE.highlightSize babylonMaterial.specularPower = (1.0f - phongEShader.roughness) * 256; } else { RaiseWarning("Unknown reflect shader type: " + reflectShader.typeName + ". Specular power is default 64. Consider using a Blinn or Phong shader instead.", 2); } } // TODO //babylonMaterial.wireframe = stdMat.Wire; // --- Textures --- babylonMaterial.diffuseTexture = ExportTexture(materialDependencyNode, "color", babylonScene); babylonMaterial.emissiveTexture = ExportTexture(materialDependencyNode, "ambientColor", babylonScene); // Maya ambient <=> babylon emissive babylonMaterial.bumpTexture = ExportTexture(materialDependencyNode, "normalCamera", babylonScene); if (isTransparencyModeFromBabylonMaterialNode == false || babylonMaterial.transparencyMode != 0) { babylonMaterial.opacityTexture = ExportTexture(materialDependencyNode, "transparency", babylonScene, false, true); } if (materialObject.hasFn(MFn.Type.kReflect)) { babylonMaterial.specularTexture = ExportTexture(materialDependencyNode, "specularColor", babylonScene); babylonMaterial.reflectionTexture = ExportTexture(materialDependencyNode, "reflectedColor", babylonScene, true, false, true); } if (isTransparencyModeFromBabylonMaterialNode == false && (babylonMaterial.alpha != 1.0f || (babylonMaterial.diffuseTexture != null && babylonMaterial.diffuseTexture.hasAlpha) || babylonMaterial.opacityTexture != null)) { babylonMaterial.transparencyMode = (int)BabylonPBRMetallicRoughnessMaterial.TransparencyMode.ALPHABLEND; } // Constraints if (babylonMaterial.diffuseTexture != null) { babylonMaterial.diffuse = new[] { 1.0f, 1.0f, 1.0f }; } if (babylonMaterial.emissiveTexture != null) { babylonMaterial.emissive = new float[] { 0, 0, 0 }; } if (babylonMaterial.transparencyMode == (int)BabylonPBRMetallicRoughnessMaterial.TransparencyMode.ALPHATEST) { // Set the alphaCutOff value explicitely to avoid different interpretations on different engines // Use the glTF default value rather than the babylon one babylonMaterial.alphaCutOff = 0.5f; } if (babylonAttributesDependencyNode == null) { // Create Babylon Material dependency node babylonStandardMaterialNode.Create(materialDependencyNode); // Retreive Babylon Material dependency node babylonAttributesDependencyNode = getBabylonMaterialNode(materialDependencyNode); } if (babylonAttributesDependencyNode != null) { // Ensure all attributes are setup babylonStandardMaterialNode.Init(babylonAttributesDependencyNode, babylonMaterial); RaiseVerbose("Babylon Attributes of " + babylonAttributesDependencyNode.name, 2); // Common attributes ExportCommonBabylonAttributes(babylonAttributesDependencyNode, babylonMaterial); // Special treatment for Unlit if (babylonMaterial.isUnlit) { if ((babylonMaterial.emissive != null && (babylonMaterial.emissive[0] != 0 || babylonMaterial.emissive[1] != 0 || babylonMaterial.emissive[2] != 0)) || (babylonMaterial.emissiveTexture != null) || (babylonMaterial.emissiveFresnelParameters != null)) { RaiseWarning("Material is unlit. Emission is discarded and replaced by diffuse.", 2); } // Copy diffuse to emissive babylonMaterial.emissive = babylonMaterial.diffuse; babylonMaterial.emissiveTexture = babylonMaterial.diffuseTexture; babylonMaterial.emissiveFresnelParameters = babylonMaterial.diffuseFresnelParameters; babylonMaterial.disableLighting = true; babylonMaterial.linkEmissiveWithDiffuse = false; } // Special treatment for "Alpha test" transparency mode if (babylonMaterial.transparencyMode == (int)BabylonPBRMetallicRoughnessMaterial.TransparencyMode.ALPHATEST && ((babylonMaterial.diffuseTexture != null && babylonMaterial.opacityTexture != null && babylonMaterial.diffuseTexture.originalPath != babylonMaterial.opacityTexture.originalPath) || (babylonMaterial.diffuseTexture == null && babylonMaterial.opacityTexture != null))) { // Base color and alpha files need to be merged into a single file Color defaultColor = Color.FromArgb((int)(babylonMaterial.diffuse[0] * 255), (int)(babylonMaterial.diffuse[1] * 255), (int)(babylonMaterial.diffuse[2] * 255)); MFnDependencyNode baseColorTextureDependencyNode = getTextureDependencyNode(materialDependencyNode, "color"); MFnDependencyNode opacityTextureDependencyNode = getTextureDependencyNode(materialDependencyNode, "transparency"); babylonMaterial.diffuseTexture = ExportBaseColorAlphaTexture(baseColorTextureDependencyNode, opacityTextureDependencyNode, babylonScene, name, defaultColor, babylonMaterial.alpha); babylonMaterial.opacityTexture = null; babylonMaterial.alpha = 1.0f; } } babylonScene.MaterialsList.Add(babylonMaterial); } // Stingray PBS material else if (isStingrayPBSMaterial(materialDependencyNode)) { RaiseMessage("Stingray shader", 2); var babylonMaterial = new BabylonPBRMetallicRoughnessMaterial(id) { name = name }; // --- Global --- // Color3 babylonMaterial.baseColor = materialDependencyNode.findPlug("base_color").asFloatArray(); // Alpha string opacityAttributeName = "opacity"; if (materialDependencyNode.hasAttribute(opacityAttributeName)) { float opacityAttributeValue = materialDependencyNode.findPlug(opacityAttributeName).asFloat(); babylonMaterial.alpha = 1.0f - opacityAttributeValue; } // Metallic & roughness babylonMaterial.metallic = materialDependencyNode.findPlug("metallic").asFloat(); babylonMaterial.roughness = materialDependencyNode.findPlug("roughness").asFloat(); // Emissive float emissiveIntensity = materialDependencyNode.findPlug("emissive_intensity").asFloat(); // Factor emissive color with emissive intensity emissiveIntensity = Tools.Clamp(emissiveIntensity, 0f, 1f); babylonMaterial.emissive = materialDependencyNode.findPlug("emissive").asFloatArray().Multiply(emissiveIntensity); // --- Textures --- // Base color & alpha bool useColorMap = materialDependencyNode.findPlug("use_color_map").asBool(); bool useOpacityMap = false; string useOpacityMapAttributeName = "use_opacity_map"; if (materialDependencyNode.hasAttribute(useOpacityMapAttributeName)) { useOpacityMap = materialDependencyNode.findPlug(useOpacityMapAttributeName).asBool(); } if (materialDependencyNode.hasAttribute("mask_threshold")) // Preset "Masked" { if (useColorMap && useOpacityMap) { // Texture is assumed to be already merged babylonMaterial.baseTexture = ExportTexture(materialDependencyNode, "TEX_color_map", babylonScene, false, true); } else if (useColorMap || useOpacityMap) { // Merge Diffuse and Mask Color defaultColor = Color.FromArgb((int)(babylonMaterial.baseColor[0] * 255), (int)(babylonMaterial.baseColor[1] * 255), (int)(babylonMaterial.baseColor[2] * 255)); // In Maya, a Masked StingrayPBS material without opacity or mask textures is counted as being fully transparent // Such material is visible only when the mask threshold is set to 0 float defaultOpacity = 0; // Either use the color map MFnDependencyNode baseColorTextureDependencyNode = null; if (useColorMap) { baseColorTextureDependencyNode = getTextureDependencyNode(materialDependencyNode, "TEX_color_map"); } // Or the opacity map MFnDependencyNode opacityTextureDependencyNode = null; if (useOpacityMap) { opacityTextureDependencyNode = getTextureDependencyNode(materialDependencyNode, "TEX_color_map"); } // Merge default value and texture babylonMaterial.baseTexture = ExportBaseColorAlphaTexture(baseColorTextureDependencyNode, opacityTextureDependencyNode, babylonScene, babylonMaterial.name, defaultColor, defaultOpacity); } else { // In Maya, a Masked StingrayPBS material without opacity or mask textures is counted as being fully transparent // Such material is visible only when the mask threshold is set to 0 babylonMaterial.alpha = 0; } } else { if (useColorMap || useOpacityMap) { // Force non use map to default value // Ex: if useOpacityMap == false, force alpha = 255 for all pixels. babylonMaterial.baseTexture = ExportTexture(materialDependencyNode, "TEX_color_map", babylonScene, false, useOpacityMap); } } if (babylonMaterial.transparencyMode == (int)BabylonPBRMetallicRoughnessMaterial.TransparencyMode.ALPHATEST) { // Set the alphaCutOff value explicitely to avoid different interpretations on different engines // Use the glTF default value rather than the babylon one babylonMaterial.alphaCutOff = 0.5f; } // Alpha cuttoff if (materialDependencyNode.hasAttribute("mask_threshold")) // Preset "Masked" { babylonMaterial.alphaCutOff = materialDependencyNode.findPlug("mask_threshold").asFloat(); } // Metallic, roughness, ambient occlusion bool useMetallicMap = materialDependencyNode.findPlug("use_metallic_map").asBool(); bool useRoughnessMap = materialDependencyNode.findPlug("use_roughness_map").asBool(); string useAOMapAttributeName = "use_ao_map"; bool useAOMap = materialDependencyNode.hasAttribute(useAOMapAttributeName) && materialDependencyNode.findPlug(useAOMapAttributeName).asBool(); MFnDependencyNode metallicTextureDependencyNode = useMetallicMap ? getTextureDependencyNode(materialDependencyNode, "TEX_metallic_map") : null; MFnDependencyNode roughnessTextureDependencyNode = useRoughnessMap ? getTextureDependencyNode(materialDependencyNode, "TEX_roughness_map") : null; MFnDependencyNode ambientOcclusionTextureDependencyNode = useAOMap ? getTextureDependencyNode(materialDependencyNode, "TEX_ao_map") : null; // Check if MR or ORM textures are already merged bool areTexturesAlreadyMerged = false; if (metallicTextureDependencyNode != null && roughnessTextureDependencyNode != null) { string sourcePathMetallic = getSourcePathFromFileTexture(metallicTextureDependencyNode); string sourcePathRoughness = getSourcePathFromFileTexture(roughnessTextureDependencyNode); if (sourcePathMetallic == sourcePathRoughness) { if (ambientOcclusionTextureDependencyNode != null) { string sourcePathAmbientOcclusion = getSourcePathFromFileTexture(ambientOcclusionTextureDependencyNode); if (sourcePathMetallic == sourcePathAmbientOcclusion) { // Metallic, roughness and ambient occlusion are already merged RaiseVerbose("Metallic, roughness and ambient occlusion are already merged", 2); BabylonTexture ormTexture = ExportTexture(metallicTextureDependencyNode, babylonScene); babylonMaterial.metallicRoughnessTexture = ormTexture; babylonMaterial.occlusionTexture = ormTexture; areTexturesAlreadyMerged = true; } } else { // Metallic and roughness are already merged RaiseVerbose("Metallic and roughness are already merged", 2); BabylonTexture ormTexture = ExportTexture(metallicTextureDependencyNode, babylonScene); babylonMaterial.metallicRoughnessTexture = ormTexture; areTexturesAlreadyMerged = true; } } } if (areTexturesAlreadyMerged == false) { if (metallicTextureDependencyNode != null || roughnessTextureDependencyNode != null) { // Merge metallic, roughness and ambient occlusion RaiseVerbose("Merge metallic, roughness and ambient occlusion", 2); BabylonTexture ormTexture = ExportORMTexture(babylonScene, metallicTextureDependencyNode, roughnessTextureDependencyNode, ambientOcclusionTextureDependencyNode, babylonMaterial.metallic, babylonMaterial.roughness); babylonMaterial.metallicRoughnessTexture = ormTexture; if (ambientOcclusionTextureDependencyNode != null) { babylonMaterial.occlusionTexture = ormTexture; } } else if (ambientOcclusionTextureDependencyNode != null) { // Simply export occlusion texture RaiseVerbose("Simply export occlusion texture", 2); babylonMaterial.occlusionTexture = ExportTexture(ambientOcclusionTextureDependencyNode, babylonScene); } } // Normal if (materialDependencyNode.findPlug("use_normal_map").asBool()) { babylonMaterial.normalTexture = ExportTexture(materialDependencyNode, "TEX_normal_map", babylonScene); } // Emissive bool useEmissiveMap = materialDependencyNode.findPlug("use_emissive_map").asBool(); if (useEmissiveMap) { babylonMaterial.emissiveTexture = ExportTexture(materialDependencyNode, "TEX_emissive_map", babylonScene, false, false, false, emissiveIntensity); } // Constraints if (useColorMap) { babylonMaterial.baseColor = new[] { 1.0f, 1.0f, 1.0f }; } if (useOpacityMap) { babylonMaterial.alpha = 1.0f; } if (babylonMaterial.alpha != 1.0f || (babylonMaterial.baseTexture != null && babylonMaterial.baseTexture.hasAlpha)) { if (materialDependencyNode.hasAttribute("mask_threshold")) { babylonMaterial.transparencyMode = (int)BabylonPBRMetallicRoughnessMaterial.TransparencyMode.ALPHATEST; } else { babylonMaterial.transparencyMode = (int)BabylonPBRMetallicRoughnessMaterial.TransparencyMode.ALPHABLEND; } } if (useMetallicMap) { babylonMaterial.metallic = 1.0f; } if (useRoughnessMap) { babylonMaterial.roughness = 1.0f; } if (useEmissiveMap) { babylonMaterial.emissive = new[] { 1.0f, 1.0f, 1.0f }; } // User custom attributes babylonMaterial.metadata = ExportCustomAttributeFromMaterial(babylonMaterial); if (babylonAttributesDependencyNode == null) { // Create Babylon Material dependency node babylonStingrayPBSMaterialNode.Create(materialDependencyNode); // Retreive Babylon Material dependency node babylonAttributesDependencyNode = getBabylonMaterialNode(materialDependencyNode); } if (babylonAttributesDependencyNode != null) { // Ensure all attributes are setup babylonStingrayPBSMaterialNode.Init(babylonAttributesDependencyNode, babylonMaterial); RaiseVerbose("Babylon Attributes of " + babylonAttributesDependencyNode.name, 2); // Common attributes ExportCommonBabylonAttributes(babylonAttributesDependencyNode, babylonMaterial); babylonMaterial.doubleSided = !babylonMaterial.backFaceCulling; babylonMaterial._unlit = babylonMaterial.isUnlit; // Update displayed Transparency mode value based on StingrayPBS preset material MGlobal.executeCommand($"setAttr - l false {{ \"{babylonAttributesDependencyNode.name}.babylonTransparencyMode\" }}"); // Unlock attribute int babylonTransparencyMode = 0; if (materialDependencyNode.hasAttribute("mask_threshold")) { babylonTransparencyMode = 1; } else if (materialDependencyNode.hasAttribute("use_opacity_map")) { babylonTransparencyMode = 2; } MGlobal.executeCommand($"setAttr \"{babylonAttributesDependencyNode.name}.babylonTransparencyMode\" {babylonTransparencyMode};"); MGlobal.executeCommand($"setAttr - l true {{ \"{babylonAttributesDependencyNode.name}.babylonTransparencyMode\" }}"); // Lock it afterwards } babylonScene.MaterialsList.Add(babylonMaterial); } // Arnold Ai Standard Surface else if (isAiStandardSurface(materialDependencyNode)) { RaiseMessage("Ai Standard Surface shader", 2); var babylonMaterial = new BabylonPBRMetallicRoughnessMaterial(id) { name = name }; // User custom attributes babylonMaterial.metadata = ExportCustomAttributeFromMaterial(babylonMaterial); // --- Global --- bool isTransparencyModeFromBabylonMaterialNode = false; if (babylonAttributesDependencyNode != null) { // Transparency mode if (babylonAttributesDependencyNode.hasAttribute("babylonTransparencyMode")) { babylonMaterial.transparencyMode = babylonAttributesDependencyNode.findPlug("babylonTransparencyMode").asInt(); isTransparencyModeFromBabylonMaterialNode = true; } } // Color3 float baseWeight = materialDependencyNode.findPlug("base").asFloat(); float[] baseColor = materialDependencyNode.findPlug("baseColor").asFloatArray(); babylonMaterial.baseColor = baseColor.Multiply(baseWeight); // Alpha MaterialDuplicationData materialDuplicationData = materialDuplicationDatas[id]; // If at least one mesh is Transparent and is using this material either directly or as a sub material if ((isTransparencyModeFromBabylonMaterialNode == false || babylonMaterial.transparencyMode != 0) && materialDuplicationData.isArnoldTransparent()) { float[] opacityAttributeValue = materialDependencyNode.findPlug("opacity").asFloatArray(); babylonMaterial.alpha = opacityAttributeValue[0]; } else { // Do not bother about alpha babylonMaterial.alpha = 1.0f; } // Metallic & roughness babylonMaterial.metallic = materialDependencyNode.findPlug("metalness").asFloat(); babylonMaterial.roughness = materialDependencyNode.findPlug("specularRoughness").asFloat(); // Emissive float emissionWeight = materialDependencyNode.findPlug("emission").asFloat(); babylonMaterial.emissive = materialDependencyNode.findPlug("emissionColor").asFloatArray().Multiply(emissionWeight); var list = new List <string>(); for (int i = 0; i < materialDependencyNode.attributeCount; i++) { var attr = materialDependencyNode.attribute((uint)i); var plug = materialDependencyNode.findPlug(attr); //string aliasName; //materialDependencyNode.getPlugsAlias(plug, out aliasName); System.Diagnostics.Debug.WriteLine(plug.name + i.ToString()); } // --- Clear Coat --- float coatWeight = materialDependencyNode.findPlug("coat").asFloat(); MFnDependencyNode intensityCoatTextureDependencyNode = getTextureDependencyNode(materialDependencyNode, "coat"); if (coatWeight > 0.0f || intensityCoatTextureDependencyNode != null) { babylonMaterial.clearCoat.isEnabled = true; babylonMaterial.clearCoat.indexOfRefraction = materialDependencyNode.findPlug("coatIOR").asFloat(); var coatRoughness = materialDependencyNode.findPlug("coatRoughness").asFloat(); MFnDependencyNode roughnessCoatTextureDependencyNode = getTextureDependencyNode(materialDependencyNode, "coatRoughness"); var coatTexture = ExportCoatTexture(intensityCoatTextureDependencyNode, roughnessCoatTextureDependencyNode, babylonScene, name, coatWeight, coatRoughness); if (coatTexture != null) { babylonMaterial.clearCoat.texture = coatTexture; babylonMaterial.clearCoat.roughness = 1.0f; babylonMaterial.clearCoat.intensity = 1.0f; } else { babylonMaterial.clearCoat.intensity = coatWeight; babylonMaterial.clearCoat.roughness = coatRoughness; } float[] coatColor = materialDependencyNode.findPlug("coatColor").asFloatArray(); if (coatColor[0] != 1.0f || coatColor[1] != 1.0f || coatColor[2] != 1.0f) { babylonMaterial.clearCoat.isTintEnabled = true; babylonMaterial.clearCoat.tintColor = coatColor; } babylonMaterial.clearCoat.tintTexture = ExportTexture(materialDependencyNode, "coatColor", babylonScene); if (babylonMaterial.clearCoat.tintTexture != null) { babylonMaterial.clearCoat.tintColor = new[] { 1.0f, 1.0f, 1.0f }; babylonMaterial.clearCoat.isTintEnabled = true; } // EyeBall deduction... babylonMaterial.clearCoat.tintThickness = 0.65f; babylonMaterial.clearCoat.bumpTexture = ExportTexture(materialDependencyNode, "coatNormal", babylonScene); } // --- Textures --- // Base color & alpha if ((isTransparencyModeFromBabylonMaterialNode == false || babylonMaterial.transparencyMode != 0) && materialDuplicationData.isArnoldTransparent()) { MFnDependencyNode baseColorTextureDependencyNode = getTextureDependencyNode(materialDependencyNode, "baseColor"); MFnDependencyNode opacityTextureDependencyNode = getTextureDependencyNode(materialDependencyNode, "opacity"); if (baseColorTextureDependencyNode != null && opacityTextureDependencyNode != null && getSourcePathFromFileTexture(baseColorTextureDependencyNode) == getSourcePathFromFileTexture(opacityTextureDependencyNode)) { // If the same file is used for base color and opacity // Base color and alpha are already merged into a single file babylonMaterial.baseTexture = ExportTexture(baseColorTextureDependencyNode, babylonScene, false, true); } else { // Base color and alpha files need to be merged into a single file Color _baseColor = Color.FromArgb((int)(baseColor[0] * 255), (int)(baseColor[1] * 255), (int)(baseColor[2] * 255)); babylonMaterial.baseTexture = ExportBaseColorAlphaTexture(baseColorTextureDependencyNode, opacityTextureDependencyNode, babylonScene, name, _baseColor, babylonMaterial.alpha); } } else { // Base color only // Do not bother about alpha babylonMaterial.baseTexture = ExportTexture(materialDependencyNode, "baseColor", babylonScene); } // Metallic & roughness MFnDependencyNode metallicTextureDependencyNode = getTextureDependencyNode(materialDependencyNode, "metalness"); MFnDependencyNode roughnessTextureDependencyNode = getTextureDependencyNode(materialDependencyNode, "specularRoughness"); if (metallicTextureDependencyNode != null && roughnessTextureDependencyNode != null && getSourcePathFromFileTexture(metallicTextureDependencyNode) == getSourcePathFromFileTexture(roughnessTextureDependencyNode)) { // If the same file is used for metallic and roughness // Then we assume it's an ORM file (Red=Occlusion, Green=Roughness, Blue=Metallic) // Metallic and roughness are already merged into a single file babylonMaterial.metallicRoughnessTexture = ExportTexture(metallicTextureDependencyNode, babylonScene); // Use same file for Ambient occlusion babylonMaterial.occlusionTexture = babylonMaterial.metallicRoughnessTexture; } else { // Metallic and roughness files need to be merged into a single file // Occlusion texture is not exported since aiStandardSurface material doesn't provide input for it babylonMaterial.metallicRoughnessTexture = ExportORMTexture(babylonScene, metallicTextureDependencyNode, roughnessTextureDependencyNode, null, babylonMaterial.metallic, babylonMaterial.roughness); } // Normal babylonMaterial.normalTexture = ExportTexture(materialDependencyNode, "normalCamera", babylonScene); // Emissive babylonMaterial.emissiveTexture = ExportTexture(materialDependencyNode, "emissionColor", babylonScene); // Constraints if (babylonMaterial.baseTexture != null) { babylonMaterial.baseColor = new[] { baseWeight, baseWeight, baseWeight }; babylonMaterial.alpha = 1.0f; } if (babylonMaterial.metallicRoughnessTexture != null) { babylonMaterial.metallic = 1.0f; babylonMaterial.roughness = 1.0f; } if (babylonMaterial.emissiveTexture != null) { babylonMaterial.emissive = new[] { emissionWeight, emissionWeight, emissionWeight }; } // If this material is containing alpha data if (babylonMaterial.alpha != 1.0f || (babylonMaterial.baseTexture != null && babylonMaterial.baseTexture.hasAlpha)) { if (isTransparencyModeFromBabylonMaterialNode == false) { babylonMaterial.transparencyMode = (int)BabylonPBRMetallicRoughnessMaterial.TransparencyMode.ALPHABLEND; } // If this material is assigned to both Transparent and Opaque meshes (either directly or as a sub material) if (materialDuplicationData.isDuplicationRequired()) { // Duplicate material BabylonPBRMetallicRoughnessMaterial babylonMaterialCloned = DuplicateMaterial(babylonMaterial, materialDuplicationData); // Store duplicated material too babylonScene.MaterialsList.Add(babylonMaterialCloned); } } if (babylonMaterial.transparencyMode == (int)BabylonPBRMetallicRoughnessMaterial.TransparencyMode.ALPHATEST) { // Set the alphaCutOff value explicitely to avoid different interpretations on different engines // Use the glTF default value rather than the babylon one babylonMaterial.alphaCutOff = 0.5f; } if (babylonAttributesDependencyNode == null) { // Create Babylon Material dependency node babylonAiStandardSurfaceMaterialNode.Create(materialDependencyNode); // Retreive Babylon Material dependency node babylonAttributesDependencyNode = getBabylonMaterialNode(materialDependencyNode); } if (babylonAttributesDependencyNode != null) { // Ensure all attributes are setup babylonAiStandardSurfaceMaterialNode.Init(babylonAttributesDependencyNode, babylonMaterial); RaiseVerbose("Babylon Attributes of " + babylonAttributesDependencyNode.name, 2); // Common attributes ExportCommonBabylonAttributes(babylonAttributesDependencyNode, babylonMaterial); babylonMaterial.doubleSided = !babylonMaterial.backFaceCulling; babylonMaterial._unlit = babylonMaterial.isUnlit; } if (fullPBR) { var fullPBRMaterial = new BabylonPBRMaterial(babylonMaterial); babylonScene.MaterialsList.Add(fullPBRMaterial); } else { babylonScene.MaterialsList.Add(babylonMaterial); } } else { RaiseWarning("Unsupported material type '" + materialObject.apiType + "' for material named '" + materialDependencyNode.name + "'", 2); } }
private void DumpGlossinessReflectivity(Material material, bool metallic, BabylonPBRMaterial babylonPbrMaterial) { if (material.HasProperty("_Glossiness")) { babylonPbrMaterial.microSurface = material.GetFloat("_Glossiness"); } if (metallic) { if (material.HasProperty("_Metallic")) { var metalness = material.GetFloat("_Metallic"); babylonPbrMaterial.reflectivity = new float[] { metalness *babylonPbrMaterial.albedo[0], metalness *babylonPbrMaterial.albedo[1], metalness *babylonPbrMaterial.albedo[2] }; if (babylonPbrMaterial.albedoTexture != null) { var albedoTexture = material.GetTexture("_MainTex") as Texture2D; if (albedoTexture != null) { var albedoPixels = GetPixels(albedoTexture); var reflectivityTexture = new Texture2D(albedoTexture.width, albedoTexture.height, TextureFormat.RGBA32, false); reflectivityTexture.alphaIsTransparency = true; babylonPbrMaterial.useMicroSurfaceFromReflectivityMapAlpha = true; var metallicTexture = material.GetTexture("_MetallicGlossMap") as Texture2D; if (metallicTexture == null) { for (var i = 0; i < albedoTexture.width; i++) { for (var j = 0; j < albedoTexture.height; j++) { albedoPixels[j * albedoTexture.width + i].r *= metalness; albedoPixels[j * albedoTexture.width + i].g *= metalness; albedoPixels[j * albedoTexture.width + i].b *= metalness; albedoPixels[j * albedoTexture.width + i].a = babylonPbrMaterial.microSurface; } } } else { var metallicPixels = GetPixels(metallicTexture); for (var i = 0; i < albedoTexture.width; i++) { for (var j = 0; j < albedoTexture.height; j++) { var metallicPixel = metallicPixels[j * albedoTexture.width + i]; albedoPixels[j * albedoTexture.width + i].r *= metallicPixel.r; albedoPixels[j * albedoTexture.width + i].g *= metallicPixel.r; albedoPixels[j * albedoTexture.width + i].b *= metallicPixel.r; albedoPixels[j * albedoTexture.width + i].a = metallicPixel.a; } } } reflectivityTexture.SetPixels(albedoPixels); reflectivityTexture.Apply(); var textureName = albedoTexture.name + "_MetallicGlossMap.png"; var babylonTexture = new BabylonTexture { name = textureName }; var textureScale = material.GetTextureScale("_MainTex"); babylonTexture.uScale = textureScale.x; babylonTexture.vScale = textureScale.y; var textureOffset = material.GetTextureOffset("_MainTex"); babylonTexture.uOffset = textureOffset.x; babylonTexture.vOffset = textureOffset.y; var reflectivityTexturePath = Path.Combine(Path.GetTempPath(), textureName); File.WriteAllBytes(reflectivityTexturePath, reflectivityTexture.EncodeToPNG()); babylonScene.AddTexture(reflectivityTexturePath); if (File.Exists(reflectivityTexturePath)) { File.Delete(reflectivityTexturePath); } babylonPbrMaterial.reflectivityTexture = babylonTexture; } } //else //{ // TODO. Manage Albedo Cube Texture. //} } } else { if (material.HasProperty("_SpecColor")) { babylonPbrMaterial.reflectivity = material.GetColor("_SpecColor").ToFloat(); } babylonPbrMaterial.reflectivityTexture = DumpTextureFromMaterial(material, "_SpecGlossMap"); if (babylonPbrMaterial.reflectivityTexture != null && babylonPbrMaterial.reflectivityTexture.hasAlpha) { babylonPbrMaterial.useMicroSurfaceFromReflectivityMapAlpha = true; } } }
private void ExportMaterial(IIGameMaterial materialNode, BabylonScene babylonScene) { var name = materialNode.MaterialName; var id = materialNode.MaxMaterial.GetGuid().ToString(); // Check if the material was already exported. The material id is unique. if (babylonScene.MaterialsList.FirstOrDefault(m => m.id == id) != null) { return; } RaiseMessage(name, 1); // --- prints --- #region prints { RaiseVerbose("materialNode.MaterialClass=" + materialNode.MaterialClass, 2); RaiseVerbose("materialNode.NumberOfTextureMaps=" + materialNode.NumberOfTextureMaps, 2); var propertyContainer = materialNode.IPropertyContainer; RaiseVerbose("propertyContainer=" + propertyContainer, 2); if (propertyContainer != null) { RaiseVerbose("propertyContainer.NumberOfProperties=" + propertyContainer.NumberOfProperties, 3); for (int i = 0; i < propertyContainer.NumberOfProperties; i++) { var prop = propertyContainer.GetProperty(i); if (prop != null) { RaiseVerbose("propertyContainer.GetProperty(" + i + ")=" + prop.Name, 3); switch (prop.GetType_) { case PropType.StringProp: string propertyString = ""; RaiseVerbose("prop.GetPropertyValue(ref propertyString, 0)=" + prop.GetPropertyValue(ref propertyString, 0), 4); RaiseVerbose("propertyString=" + propertyString, 4); break; case PropType.IntProp: int propertyInt = 0; RaiseVerbose("prop.GetPropertyValue(ref propertyInt, 0)=" + prop.GetPropertyValue(ref propertyInt, 0), 4); RaiseVerbose("propertyInt=" + propertyInt, 4); break; case PropType.FloatProp: float propertyFloat = 0; RaiseVerbose("prop.GetPropertyValue(ref propertyFloat, 0, true)=" + prop.GetPropertyValue(ref propertyFloat, 0, true), 4); RaiseVerbose("propertyFloat=" + propertyFloat, 4); RaiseVerbose("prop.GetPropertyValue(ref propertyFloat, 0, false)=" + prop.GetPropertyValue(ref propertyFloat, 0, false), 4); RaiseVerbose("propertyFloat=" + propertyFloat, 4); break; case PropType.Point3Prop: IPoint3 propertyPoint3 = Loader.Global.Point3.Create(0, 0, 0); RaiseVerbose("prop.GetPropertyValue(ref propertyPoint3, 0)=" + prop.GetPropertyValue(propertyPoint3, 0), 4); RaiseVerbose("propertyPoint3=" + Point3ToString(propertyPoint3), 4); break; case PropType.Point4Prop: IPoint4 propertyPoint4 = Loader.Global.Point4.Create(0, 0, 0, 0); RaiseVerbose("prop.GetPropertyValue(ref propertyPoint4, 0)=" + prop.GetPropertyValue(propertyPoint4, 0), 4); RaiseVerbose("propertyPoint4=" + Point4ToString(propertyPoint4), 4); break; case PropType.UnknownProp: default: RaiseVerbose("Unknown property type", 4); break; } } else { RaiseVerbose("propertyContainer.GetProperty(" + i + ") IS NULL", 3); } } } } #endregion if (materialNode.SubMaterialCount > 0) { var babylonMultimaterial = new BabylonMultiMaterial { name = name, id = id }; var guids = new List <string>(); for (var index = 0; index < materialNode.SubMaterialCount; index++) { var subMat = materialNode.GetSubMaterial(index); if (subMat != null) { if (subMat.SubMaterialCount > 0) { RaiseError("MultiMaterials as inputs to other MultiMaterials are not supported!"); } else { guids.Add(subMat.MaxMaterial.GetGuid().ToString()); if (!referencedMaterials.Contains(subMat)) { referencedMaterials.Add(subMat); ExportMaterial(subMat, babylonScene); } } } else { guids.Add(Guid.Empty.ToString()); } } babylonMultimaterial.materials = guids.ToArray(); babylonScene.MultiMaterialsList.Add(babylonMultimaterial); return; } var unlitProperty = materialNode.IPropertyContainer.QueryProperty("BabylonUnlit"); bool isUnlit = unlitProperty != null?unlitProperty.GetBoolValue() : false; // check custom exporters first, to allow custom exporters of supported material classes IMaxMaterialExporter materialExporter; materialExporters.TryGetValue(new ClassIDWrapper(materialNode.MaxMaterial.ClassID), out materialExporter); var stdMat = materialNode.MaxMaterial.NumParamBlocks > 0 ? materialNode.MaxMaterial.GetParamBlock(0).Owner as IStdMat2 : null; if (isBabylonExported && materialExporter != null && materialExporter is IMaxBabylonMaterialExporter) { IMaxBabylonMaterialExporter babylonMaterialExporter = materialExporter as IMaxBabylonMaterialExporter; BabylonMaterial babylonMaterial = babylonMaterialExporter.ExportBabylonMaterial(materialNode); if (babylonMaterial == null) { string message = string.Format("Custom Babylon material exporter failed to export | Exporter: '{0}' | Material Name: '{1}' | Material Class: '{2}'", babylonMaterialExporter.GetType().ToString(), materialNode.MaterialName, materialNode.MaterialClass); RaiseWarning(message, 2); } else { babylonScene.MaterialsList.Add(babylonMaterial); } } else if (isGltfExported && materialExporter != null && materialExporter is IMaxGLTFMaterialExporter) { // add a basic babylon material to the list to forward the max material reference var babylonMaterial = new BabylonMaterial(id) { maxGameMaterial = materialNode, name = name }; babylonScene.MaterialsList.Add(babylonMaterial); } else if (stdMat != null) { var babylonMaterial = new BabylonStandardMaterial(id) { maxGameMaterial = materialNode, name = name, isUnlit = isUnlit, diffuse = materialNode.MaxMaterial.GetDiffuse(0, false).ToArray(), alpha = 1.0f - materialNode.MaxMaterial.GetXParency(0, false) }; babylonMaterial.backFaceCulling = !stdMat.TwoSided; babylonMaterial.wireframe = stdMat.Wire; var isSelfIllumColor = materialNode.MaxMaterial.GetSelfIllumColorOn(0, false); var maxSpecularColor = materialNode.MaxMaterial.GetSpecular(0, false).ToArray(); if (isUnlit == false) { babylonMaterial.ambient = materialNode.MaxMaterial.GetAmbient(0, false).ToArray(); babylonMaterial.specular = maxSpecularColor.Multiply(materialNode.MaxMaterial.GetShinStr(0, false)); babylonMaterial.specularPower = materialNode.MaxMaterial.GetShininess(0, false) * 256; babylonMaterial.emissive = isSelfIllumColor ? materialNode.MaxMaterial.GetSelfIllumColor(0, false).ToArray() : materialNode.MaxMaterial.GetDiffuse(0, false).Scale(materialNode.MaxMaterial.GetSelfIllum(0, false)); // compute the pre-multiplied emissive color // If Self-Illumination color checkbox is checked // Then self-illumination is assumed to be pre-multiplied // Otherwise self-illumination needs to be multiplied with diffuse // linkEmissiveWithDiffuse attribute tells the Babylon engine to perform such multiplication babylonMaterial.linkEmissiveWithDiffuse = !isSelfIllumColor; // useEmissiveAsIllumination attribute tells the Babylon engine to use pre-multiplied emissive as illumination babylonMaterial.useEmissiveAsIllumination = isSelfIllumColor; // Store the emissive value (before multiplication) for gltf babylonMaterial.selfIllum = materialNode.MaxMaterial.GetSelfIllum(0, false); } // Textures BabylonFresnelParameters fresnelParameters; babylonMaterial.diffuseTexture = ExportTexture(stdMat, 1, out fresnelParameters, babylonScene); // Diffuse if (fresnelParameters != null) { babylonMaterial.diffuseFresnelParameters = fresnelParameters; } if ((babylonMaterial.alpha == 1.0f && babylonMaterial.opacityTexture == null) && babylonMaterial.diffuseTexture != null && (babylonMaterial.diffuseTexture.originalPath.EndsWith(".tif") || babylonMaterial.diffuseTexture.originalPath.EndsWith(".tiff")) && babylonMaterial.diffuseTexture.hasAlpha) { RaiseWarning($"Diffuse texture named {babylonMaterial.diffuseTexture.originalPath} is a .tif file and its Alpha Source is 'Image Alpha' by default.", 2); RaiseWarning($"If you don't want material to be in BLEND mode, set diffuse texture Alpha Source to 'None (Opaque)'", 2); } babylonMaterial.opacityTexture = ExportTexture(stdMat, 6, out fresnelParameters, babylonScene, false, true); // Opacity if (fresnelParameters != null) { babylonMaterial.opacityFresnelParameters = fresnelParameters; if (babylonMaterial.alpha == 1 && babylonMaterial.opacityTexture == null) { babylonMaterial.alpha = 0; } } if (isUnlit == false) { babylonMaterial.ambientTexture = ExportTexture(stdMat, 0, out fresnelParameters, babylonScene); // Ambient babylonMaterial.specularTexture = ExportSpecularTexture(materialNode, maxSpecularColor, babylonScene); babylonMaterial.emissiveTexture = ExportTexture(stdMat, 5, out fresnelParameters, babylonScene); // Emissive if (fresnelParameters != null) { babylonMaterial.emissiveFresnelParameters = fresnelParameters; if (babylonMaterial.emissive[0] == 0 && babylonMaterial.emissive[1] == 0 && babylonMaterial.emissive[2] == 0 && babylonMaterial.emissiveTexture == null) { babylonMaterial.emissive = new float[] { 1, 1, 1 }; } } babylonMaterial.bumpTexture = ExportTexture(stdMat, 8, out fresnelParameters, babylonScene); // Bump babylonMaterial.reflectionTexture = ExportTexture(stdMat, 9, out fresnelParameters, babylonScene, true); // Reflection if (fresnelParameters != null) { if (babylonMaterial.reflectionTexture == null) { RaiseWarning("Fallout cannot be used with reflection channel without a texture", 2); } else { babylonMaterial.reflectionFresnelParameters = fresnelParameters; } } } // Constraints if (babylonMaterial.diffuseTexture != null) { babylonMaterial.diffuse = new[] { 1.0f, 1.0f, 1.0f }; } if (babylonMaterial.emissiveTexture != null) { babylonMaterial.emissive = new float[] { 0, 0, 0 }; } if (babylonMaterial.opacityTexture != null && babylonMaterial.diffuseTexture != null && babylonMaterial.diffuseTexture.name == babylonMaterial.opacityTexture.name && babylonMaterial.diffuseTexture.hasAlpha && !babylonMaterial.opacityTexture.getAlphaFromRGB) { // This is a alpha testing purpose babylonMaterial.opacityTexture = null; babylonMaterial.diffuseTexture.hasAlpha = true; RaiseWarning("Opacity texture was removed because alpha from diffuse texture can be use instead", 2); RaiseWarning("If you do not want this behavior, just set Alpha Source = None on your diffuse texture", 2); } babylonScene.MaterialsList.Add(babylonMaterial); } else if (isPhysicalMaterial(materialNode)) { var propertyContainer = materialNode.IPropertyContainer; var babylonMaterial = new BabylonPBRMetallicRoughnessMaterial(id) { maxGameMaterial = materialNode, name = name, isUnlit = isUnlit }; // --- Global --- // Alpha //var alphaFromXParency = 1.0f - materialNode.MaxMaterial.GetXParency(0, false); var alphaFromPropertyContainer = 1.0f - propertyContainer.GetFloatProperty(17); //RaiseMessage("alphaFromXParency=" + alphaFromXParency, 2); //RaiseMessage("alphaFromPropertyContainer=" + alphaFromPropertyContainer, 2); babylonMaterial.alpha = alphaFromPropertyContainer; babylonMaterial.baseColor = materialNode.MaxMaterial.GetDiffuse(0, false).ToArray(); var invertRoughness = propertyContainer.GetBoolProperty(5); if (isUnlit == false) { babylonMaterial.metallic = propertyContainer.GetFloatProperty(6); babylonMaterial.roughness = propertyContainer.GetFloatProperty(4); if (invertRoughness) { // Inverse roughness babylonMaterial.roughness = 1 - babylonMaterial.roughness; } // Self illumination is computed from emission color, luminance, temperature and weight babylonMaterial.emissive = materialNode.MaxMaterial.GetSelfIllumColorOn(0, false) ? materialNode.MaxMaterial.GetSelfIllumColor(0, false).ToArray() : materialNode.MaxMaterial.GetDiffuse(0, false).Scale(materialNode.MaxMaterial.GetSelfIllum(0, false)); } else { // Ignore specified roughness and metallic values babylonMaterial.metallic = 0; babylonMaterial.roughness = 0.9f; } // --- Textures --- // 1 - base color ; 9 - transparancy weight ITexmap colorTexmap = _getTexMap(materialNode, 1); ITexmap alphaTexmap = _getTexMap(materialNode, 9); babylonMaterial.baseTexture = ExportBaseColorAlphaTexture(colorTexmap, alphaTexmap, babylonMaterial.baseColor, babylonMaterial.alpha, babylonScene, name); if (isUnlit == false) { // Metallic, roughness, ambient occlusion ITexmap metallicTexmap = _getTexMap(materialNode, 5); ITexmap roughnessTexmap = _getTexMap(materialNode, 4); ITexmap ambientOcclusionTexmap = _getTexMap(materialNode, 6); // Use diffuse roughness map as ambient occlusion // Check if MR or ORM textures are already merged bool areTexturesAlreadyMerged = false; if (metallicTexmap != null && roughnessTexmap != null) { string sourcePathMetallic = getSourcePath(metallicTexmap); string sourcePathRoughness = getSourcePath(roughnessTexmap); if (sourcePathMetallic == sourcePathRoughness) { if (ambientOcclusionTexmap != null && exportParameters.mergeAOwithMR) { string sourcePathAmbientOcclusion = getSourcePath(ambientOcclusionTexmap); if (sourcePathMetallic == sourcePathAmbientOcclusion) { // Metallic, roughness and ambient occlusion are already merged RaiseVerbose("Metallic, roughness and ambient occlusion are already merged", 2); BabylonTexture ormTexture = ExportTexture(metallicTexmap, babylonScene); babylonMaterial.metallicRoughnessTexture = ormTexture; babylonMaterial.occlusionTexture = ormTexture; areTexturesAlreadyMerged = true; } } else { // Metallic and roughness are already merged RaiseVerbose("Metallic and roughness are already merged", 2); BabylonTexture ormTexture = ExportTexture(metallicTexmap, babylonScene); babylonMaterial.metallicRoughnessTexture = ormTexture; areTexturesAlreadyMerged = true; } } } if (areTexturesAlreadyMerged == false) { if (metallicTexmap != null || roughnessTexmap != null) { // Merge metallic, roughness and ambient occlusion RaiseVerbose("Merge metallic and roughness (and ambient occlusion if `mergeAOwithMR` is enabled)", 2); BabylonTexture ormTexture = ExportORMTexture(exportParameters.mergeAOwithMR ? ambientOcclusionTexmap : null, roughnessTexmap, metallicTexmap, babylonMaterial.metallic, babylonMaterial.roughness, babylonScene, invertRoughness); babylonMaterial.metallicRoughnessTexture = ormTexture; if (ambientOcclusionTexmap != null) { if (exportParameters.mergeAOwithMR) { // if the ambient occlusion texture map uses a different set of texture coordinates than // metallic roughness, create a new instance of the ORM BabylonTexture with the different texture // coordinate indices var ambientOcclusionTexture = _getBitmapTex(ambientOcclusionTexmap); var texCoordIndex = ambientOcclusionTexture.UVGen.MapChannel - 1; if (texCoordIndex != ormTexture.coordinatesIndex) { babylonMaterial.occlusionTexture = new BabylonTexture(ormTexture); babylonMaterial.occlusionTexture.coordinatesIndex = texCoordIndex; // Set UVs/texture transform for the ambient occlusion texture var uvGen = _exportUV(ambientOcclusionTexture.UVGen, babylonMaterial.occlusionTexture); } else { babylonMaterial.occlusionTexture = ormTexture; } } else { babylonMaterial.occlusionTexture = ExportPBRTexture(materialNode, 6, babylonScene); } } } else if (ambientOcclusionTexmap != null) { // Simply export occlusion texture RaiseVerbose("Simply export occlusion texture", 2); babylonMaterial.occlusionTexture = ExportTexture(ambientOcclusionTexmap, babylonScene); } } if (ambientOcclusionTexmap != null && !exportParameters.mergeAOwithMR && babylonMaterial.occlusionTexture == null) { RaiseVerbose("Exporting occlusion texture without merging with metallic roughness", 2); babylonMaterial.occlusionTexture = ExportTexture(ambientOcclusionTexmap, babylonScene); } var normalMapAmount = propertyContainer.GetFloatProperty(91); babylonMaterial.normalTexture = ExportPBRTexture(materialNode, 30, babylonScene, normalMapAmount); babylonMaterial.emissiveTexture = ExportPBRTexture(materialNode, 17, babylonScene); } if (babylonMaterial.alpha != 1.0f || (babylonMaterial.baseTexture != null && babylonMaterial.baseTexture.hasAlpha)) { var alphaTestProperty = materialNode.IPropertyContainer.QueryProperty("BabylonAlphaTest"); bool isAlphaTest = alphaTestProperty != null?alphaTestProperty.GetBoolValue() : false; babylonMaterial.transparencyMode = isAlphaTest ? (int)BabylonPBRMetallicRoughnessMaterial.TransparencyMode.ALPHATEST : (int)BabylonPBRMetallicRoughnessMaterial.TransparencyMode.ALPHABLEND; } if (babylonMaterial.emissiveTexture != null) { babylonMaterial.emissive = new[] { 1.0f, 1.0f, 1.0f }; } if (babylonMaterial.metallicRoughnessTexture != null) { babylonMaterial.metallic = 1.0f; babylonMaterial.roughness = 1.0f; } babylonScene.MaterialsList.Add(babylonMaterial); } else if (isArnoldMaterial(materialNode)) { var propertyContainer = materialNode.IPropertyContainer; var babylonMaterial = new BabylonPBRMetallicRoughnessMaterial(id) { maxGameMaterial = materialNode, name = name, isUnlit = isUnlit }; // Alpha babylonMaterial.alpha = 1.0f - propertyContainer.GetFloatProperty(32); // Color: base * weight float[] baseColor = propertyContainer.GetPoint3Property(5).ToArray(); float baseWeight = propertyContainer.GetFloatProperty(2); babylonMaterial.baseColor = baseColor.Multiply(baseWeight); // Metallic & roughness bool invertRoughness = false; babylonMaterial.roughness = propertyContainer.GetFloatProperty(17); // specular_roughness babylonMaterial.metallic = propertyContainer.GetFloatProperty(29); // Emissive: emission_color * emission float[] emissionColor = propertyContainer.QueryProperty("emission_color").GetPoint3Property().ToArray(); float emissionWeight = propertyContainer.QueryProperty("emission").GetFloatValue(); if (emissionColor != null && emissionWeight > 0f) { babylonMaterial.emissive = emissionColor.Multiply(emissionWeight); } // --- Clear Coat --- float coatWeight = propertyContainer.GetFloatProperty(75); if (coatWeight > 0.0f) { babylonMaterial.clearCoat.isEnabled = true; babylonMaterial.clearCoat.indexOfRefraction = propertyContainer.GetFloatProperty(84); ITexmap intensityTexmap = _getTexMap(materialNode, 23); ITexmap roughnessTexmap = _getTexMap(materialNode, 25); var coatRoughness = propertyContainer.GetFloatProperty(81); var coatTexture = ExportClearCoatTexture(intensityTexmap, roughnessTexmap, coatWeight, coatRoughness, babylonScene, name, invertRoughness); if (coatTexture != null) { babylonMaterial.clearCoat.texture = coatTexture; babylonMaterial.clearCoat.roughness = 1.0f; babylonMaterial.clearCoat.intensity = 1.0f; } else { babylonMaterial.clearCoat.intensity = coatWeight; babylonMaterial.clearCoat.roughness = coatRoughness; } float[] coatColor = propertyContainer.GetPoint3Property(78).ToArray(); if (coatColor[0] != 1.0f || coatColor[1] != 1.0f || coatColor[2] != 1.0f) { babylonMaterial.clearCoat.isTintEnabled = true; babylonMaterial.clearCoat.tintColor = coatColor; } babylonMaterial.clearCoat.tintTexture = ExportPBRTexture(materialNode, 24, babylonScene); if (babylonMaterial.clearCoat.tintTexture != null) { babylonMaterial.clearCoat.tintColor = new[] { 1.0f, 1.0f, 1.0f }; babylonMaterial.clearCoat.isTintEnabled = true; } // EyeBall deduction... babylonMaterial.clearCoat.tintThickness = 0.65f; babylonMaterial.clearCoat.bumpTexture = ExportPBRTexture(materialNode, 27, babylonScene); } // --- Textures --- // 1 - base_color ; 5 - specular_roughness ; 9 - metalness ; 10 - transparent ITexmap colorTexmap = _getTexMap(materialNode, 1); ITexmap alphaTexmap = _getTexMap(materialNode, 10); babylonMaterial.baseTexture = ExportBaseColorAlphaTexture(colorTexmap, alphaTexmap, babylonMaterial.baseColor, babylonMaterial.alpha, babylonScene, name); if (isUnlit == false) { // Metallic, roughness ITexmap metallicTexmap = _getTexMap(materialNode, 9); ITexmap roughnessTexmap = _getTexMap(materialNode, 5); ITexmap ambientOcclusionTexmap = _getTexMap(materialNode, 6); // Use diffuse roughness map as ambient occlusion // Check if MR textures are already merged bool areTexturesAlreadyMerged = false; if (metallicTexmap != null && roughnessTexmap != null) { string sourcePathMetallic = getSourcePath(metallicTexmap); string sourcePathRoughness = getSourcePath(roughnessTexmap); if (sourcePathMetallic == sourcePathRoughness) { // Metallic and roughness are already merged RaiseVerbose("Metallic and roughness are already merged", 2); BabylonTexture ormTexture = ExportTexture(metallicTexmap, babylonScene); babylonMaterial.metallicRoughnessTexture = ormTexture; // The already merged map is assumed to contain Ambient Occlusion in R channel if (ambientOcclusionTexmap != null) { // if the ambient occlusion texture map uses a different set of texture coordinates than // metallic roughness, create a new instance of the ORM BabylonTexture with the different texture // coordinate indices var ambientOcclusionTexture = _getBitmapTex(ambientOcclusionTexmap); var texCoordIndex = ambientOcclusionTexture.UVGen.MapChannel - 1; if (texCoordIndex != ormTexture.coordinatesIndex) { babylonMaterial.occlusionTexture = new BabylonTexture(ormTexture); babylonMaterial.occlusionTexture.coordinatesIndex = texCoordIndex; // Set UVs/texture transform for the ambient occlusion texture var uvGen = _exportUV(ambientOcclusionTexture.UVGen, babylonMaterial.occlusionTexture); } else { babylonMaterial.occlusionTexture = ormTexture; } } else { babylonMaterial.occlusionTexture = ormTexture; } areTexturesAlreadyMerged = true; } } if (areTexturesAlreadyMerged == false) { if (metallicTexmap != null || roughnessTexmap != null) { // Merge metallic, roughness RaiseVerbose("Merge metallic and roughness", 2); BabylonTexture ormTexture = ExportORMTexture(null, roughnessTexmap, metallicTexmap, babylonMaterial.metallic, babylonMaterial.roughness, babylonScene, invertRoughness); babylonMaterial.metallicRoughnessTexture = ormTexture; } } var numOfTexMapSlots = materialNode.MaxMaterial.NumSubTexmaps; for (int i = 0; i < numOfTexMapSlots; i++) { if (materialNode.MaxMaterial.GetSubTexmapSlotName(i) == "normal") { babylonMaterial.normalTexture = ExportPBRTexture(materialNode, i, babylonScene); } else if (materialNode.MaxMaterial.GetSubTexmapSlotName(i) == "emission") { babylonMaterial.emissiveTexture = ExportPBRTexture(materialNode, i, babylonScene); } } } // Constraints if (babylonMaterial.baseTexture != null) { babylonMaterial.baseColor = new[] { 1.0f, 1.0f, 1.0f }; babylonMaterial.alpha = 1.0f; } if (babylonMaterial.alpha != 1.0f || (babylonMaterial.baseTexture != null && babylonMaterial.baseTexture.hasAlpha)) { babylonMaterial.transparencyMode = (int)BabylonPBRMetallicRoughnessMaterial.TransparencyMode.ALPHABLEND; } if (babylonMaterial.metallicRoughnessTexture != null) { babylonMaterial.metallic = 1.0f; babylonMaterial.roughness = 1.0f; } if (exportParameters.pbrFull) { var fullPBR = new BabylonPBRMaterial(babylonMaterial); fullPBR.maxGameMaterial = babylonMaterial.maxGameMaterial; babylonScene.MaterialsList.Add(fullPBR); } else { // Add the material to the scene babylonScene.MaterialsList.Add(babylonMaterial); } } else { // isMaterialExportable check should prevent this to happen RaiseError("Unsupported material type: " + materialNode.MaterialClass, 2); } }
/// <summary> /// Export dedicated to SpecGloss Material /// </summary> /// <param name="materialNode">the material node interface</param> /// <param name="babylonScene">the scene to export the material</param> private void ExportPbrSpecGlossMaterial(IIGameMaterial materialNode, BabylonScene babylonScene) { // build material decorator PbrSpecGlossDecorator maxDecorator = new PbrSpecGlossDecorator(materialNode); // get the custom babylon attribute decorator BabylonCustomAttributeDecorator babylonDecorator = maxDecorator.BabylonCustomAttributes; // the target material var babylonMaterial = new BabylonPBRSpecularGlossinessMaterial(maxDecorator.Id) { maxGameMaterial = materialNode, name = maxDecorator.Name, backFaceCulling = babylonDecorator.BackFaceCulling, doubleSided = !babylonDecorator.BackFaceCulling, separateCullingPass = babylonDecorator.SeparateCullingPass, isUnlit = babylonDecorator.IsUnlit, baseColor = maxDecorator.BaseColor.ToArray(), }; // --- Global --- if (babylonMaterial.isUnlit) { // Ignore values babylonMaterial.specularColor = BabylonPBRBaseSimpleMaterial.BlackColor(); babylonMaterial.glossiness = 0; } else { babylonMaterial.glossiness = maxDecorator.Glossiness; babylonMaterial.specularColor = maxDecorator.SpecularColor.ToArray(); babylonMaterial.emissive = maxDecorator.EmitColor.ToArray(); } // --- Textures --- float[] multiplyColor = null; if (exportParameters.exportTextures) { ITexmap diffuseTexMap = maxDecorator.BaseColorMap; ITexmap alphaTexMap = maxDecorator.OpacityMap; bool isOpacity = true; babylonMaterial.diffuseTexture = ExportBaseColorAlphaTexture(diffuseTexMap, alphaTexMap, babylonMaterial.baseColor, babylonMaterial.alpha, babylonScene, out multiplyColor, isOpacity); if (multiplyColor != null) { babylonMaterial.baseColor = multiplyColor; } if (!babylonMaterial.isUnlit) { // Metallic, roughness, ambient occlusion ITexmap specularTexMap = maxDecorator.SpecularMap; ITexmap glossinessTexMap = maxDecorator.GlossinessMap; ITexmap ambientOcclusionTexMap = maxDecorator.AmbientOcclusionMap; if (specularTexMap != null || glossinessTexMap != null) { // Merge Specular and Glossiness RaiseVerbose("Merge Specular and Glossiness", 2); BabylonTexture specularGlossinessTexture = ExportSpecularGlossinessTexture(babylonMaterial.specularColor, specularTexMap, babylonMaterial.glossiness, glossinessTexMap, babylonScene); babylonMaterial.specularGlossinessTexture = specularGlossinessTexture; } if (ambientOcclusionTexMap != null) { // Simply export occlusion texture RaiseVerbose("Export occlusion texture", 2); babylonMaterial.occlusionTexture = ExportTexture(ambientOcclusionTexMap, babylonScene); } var normalMapAmount = maxDecorator.BumpMapAmount; ITexmap normalTexMap = maxDecorator.NormalMap; babylonMaterial.normalTexture = ExportTexture(normalTexMap, babylonScene, normalMapAmount); ITexmap emitTexMap = maxDecorator.EmitColormMap; babylonMaterial.emissiveTexture = ExportTexture(emitTexMap, babylonScene); if (babylonMaterial.specularGlossinessTexture != null && !babylonDecorator.UseMaxFactor) { babylonMaterial.glossiness = glossinessTexMap != null ? 1.0f : 0.0f; babylonMaterial.specularColor = specularTexMap != null?BabylonPBRBaseSimpleMaterial.WhiteColor() : BabylonPBRBaseSimpleMaterial.BlackColor(); } } } // --- Finalize --- if (babylonMaterial.alpha != 1.0f || (babylonMaterial.diffuseTexture != null && babylonMaterial.diffuseTexture.hasAlpha)) { babylonMaterial.transparencyMode = (int)BabylonMaterial.TransparencyMode.ALPHABLEND; } if (babylonMaterial.transparencyMode == (int)BabylonMaterial.TransparencyMode.ALPHATEST) { // Set the alphaCutOff value explicitely to avoid different interpretations on different engines // Use the glTF default value rather than the babylon one babylonMaterial.alphaCutOff = 0.5f; } if (babylonMaterial.emissiveTexture != null) { babylonMaterial.emissive = new[] { 1.0f, 1.0f, 1.0f }; } // List all babylon material attributes // Those attributes are currently stored into the native material // They should not be exported as extra attributes var doNotExport = BabylonCustomAttributeDecorator.ListPrivatePropertyNames().ToList(); // Export the custom attributes of this material babylonMaterial.metadata = ExportExtraAttributes(materialNode, babylonScene, doNotExport); if (exportParameters.pbrFull) { var fullPBR = new BabylonPBRMaterial(babylonMaterial) { directIntensity = babylonDecorator.DirectIntensity, emissiveIntensity = babylonDecorator.EmissiveIntensity, environmentIntensity = babylonDecorator.EnvironementIntensity, specularIntensity = babylonDecorator.SpecularIntensity, maxGameMaterial = babylonMaterial.maxGameMaterial }; babylonScene.MaterialsList.Add(fullPBR); } else { // Add the material to the scene babylonScene.MaterialsList.Add(babylonMaterial); } }
/// <summary> /// Export dedicated to PbrMetalRough Material /// </summary> /// <param name="materialNode">the material node interface</param> /// <param name="babylonScene">the scene to export the material</param> private void ExportPbrMetalRoughMaterial(IIGameMaterial materialNode, BabylonScene babylonScene) { // build material decorator PbrMetalRoughDecorator maxDecorator = new PbrMetalRoughDecorator(materialNode); // get the custom babylon attribute decorator BabylonCustomAttributeDecorator babylonDecorator = maxDecorator.BabylonCustomAttributes; // the target material var babylonMaterial = new BabylonPBRMetallicRoughnessMaterial(maxDecorator.Id) { maxGameMaterial = materialNode, name = maxDecorator.Name, backFaceCulling = babylonDecorator.BackFaceCulling, doubleSided = !babylonDecorator.BackFaceCulling, separateCullingPass = babylonDecorator.SeparateCullingPass, isUnlit = babylonDecorator.IsUnlit, _unlit = babylonDecorator.IsUnlit, baseColor = maxDecorator.BaseColor.ToArray() }; // --- Global --- if (babylonMaterial.isUnlit) { // Ignore values babylonMaterial.metallic = 0; babylonMaterial.roughness = 0.9f; } else { babylonMaterial.metallic = maxDecorator.Metalness; babylonMaterial.roughness = maxDecorator.Roughness; babylonMaterial.emissive = maxDecorator.EmitColor.ToArray(); } // --- Textures --- float[] multiplyColor = null; if (exportParameters.exportTextures) { ITexmap baseColorTexMap = maxDecorator.BaseColorMap; ITexmap alphaTexMap = maxDecorator.OpacityMap; bool isOpacity = true; babylonMaterial.baseTexture = ExportBaseColorAlphaTexture(baseColorTexMap, alphaTexMap, babylonMaterial.baseColor, babylonMaterial.alpha, babylonScene, out multiplyColor, isOpacity); if (multiplyColor != null) { babylonMaterial.baseColor = multiplyColor; } if (!babylonMaterial.isUnlit) { // Metallic, roughness, ambient occlusion ITexmap metalnessTexMap = maxDecorator.MetalnessMap; ITexmap roughnessTexMap = maxDecorator.RoughnessMap; ITexmap ambientOcclusionTexMap = maxDecorator.AmbientOcclusionMap; // Check if MR or ORM textures are already merged bool areTexturesAlreadyMerged = false; if (metalnessTexMap != null && roughnessTexMap != null) { string sourcePathMetallic = getSourcePath(metalnessTexMap); string sourcePathRoughness = getSourcePath(roughnessTexMap); if (sourcePathMetallic == sourcePathRoughness) { if (ambientOcclusionTexMap != null && exportParameters.mergeAO) { string sourcePathAmbientOcclusion = getSourcePath(ambientOcclusionTexMap); if (sourcePathMetallic == sourcePathAmbientOcclusion) { // Metallic, roughness and ambient occlusion are already merged RaiseVerbose("Metallic, roughness and ambient occlusion are already merged", 2); BabylonTexture ormTexture = ExportTexture(metalnessTexMap, babylonScene); babylonMaterial.metallicRoughnessTexture = ormTexture; babylonMaterial.occlusionTexture = ormTexture; areTexturesAlreadyMerged = true; } } else { // Metallic and roughness are already merged RaiseVerbose("Metallic and roughness are already merged", 2); BabylonTexture ormTexture = ExportTexture(metalnessTexMap, babylonScene); babylonMaterial.metallicRoughnessTexture = ormTexture; areTexturesAlreadyMerged = true; } } } if (areTexturesAlreadyMerged == false) { if (metalnessTexMap != null || roughnessTexMap != null) { // Merge metallic, roughness and ambient occlusion RaiseVerbose("Merge metallic and roughness (and ambient occlusion if `mergeAOwithMR` is enabled)", 2); BabylonTexture ormTexture = ExportORMTexture(exportParameters.mergeAO ? ambientOcclusionTexMap : null, roughnessTexMap, metalnessTexMap, babylonMaterial.metallic, babylonMaterial.roughness, babylonScene, false); babylonMaterial.metallicRoughnessTexture = ormTexture; if (ambientOcclusionTexMap != null) { if (exportParameters.mergeAO) { // if the ambient occlusion texture map uses a different set of texture coordinates than // metallic roughness, create a new instance of the ORM BabylonTexture with the different texture // coordinate indices var ambientOcclusionTexture = _getBitmapTex(ambientOcclusionTexMap); var texCoordIndex = ambientOcclusionTexture.UVGen.MapChannel - 1; if (texCoordIndex != ormTexture.coordinatesIndex) { babylonMaterial.occlusionTexture = new BabylonTexture(ormTexture); babylonMaterial.occlusionTexture.coordinatesIndex = texCoordIndex; // Set UVs/texture transform for the ambient occlusion texture var uvGen = _exportUV(ambientOcclusionTexture.UVGen, babylonMaterial.occlusionTexture); } else { babylonMaterial.occlusionTexture = ormTexture; } } else { babylonMaterial.occlusionTexture = ExportTexture(ambientOcclusionTexMap, babylonScene); } } } else if (ambientOcclusionTexMap != null) { // Simply export occlusion texture RaiseVerbose("Simply export occlusion texture", 2); babylonMaterial.occlusionTexture = ExportTexture(ambientOcclusionTexMap, babylonScene); } } if (ambientOcclusionTexMap != null && !exportParameters.mergeAO && babylonMaterial.occlusionTexture == null) { RaiseVerbose("Exporting occlusion texture without merging with metallic roughness", 2); babylonMaterial.occlusionTexture = ExportTexture(ambientOcclusionTexMap, babylonScene); } var normalMapAmount = maxDecorator.BumpMapAmount; ITexmap normalTexMap = maxDecorator.NormalMap; babylonMaterial.normalTexture = ExportTexture(normalTexMap, babylonScene, normalMapAmount); ITexmap emitTexMap = maxDecorator.EmitColormMap; babylonMaterial.emissiveTexture = ExportTexture(emitTexMap, babylonScene); if (babylonMaterial.metallicRoughnessTexture != null && !babylonDecorator.UseMaxFactor) { // Change the factor to zero if combining partial channel to avoid issue (in case of image compression). // ie - if no metallic map, then b MUST be fully black. However channel of jpeg MAY not beeing fully black // cause of the compression algorithm. Keeping MetallicFactor to 1 will make visible artifact onto texture. So set to Zero instead. babylonMaterial.metallic = areTexturesAlreadyMerged || metalnessTexMap != null ? 1.0f : 0.0f; babylonMaterial.roughness = areTexturesAlreadyMerged || roughnessTexMap != null ? 1.0f : 0.0f; } } } if (babylonMaterial.alpha != 1.0f || (babylonMaterial.baseTexture != null && babylonMaterial.baseTexture.hasAlpha)) { babylonMaterial.transparencyMode = (int)BabylonMaterial.TransparencyMode.ALPHABLEND; } if (babylonMaterial.transparencyMode == (int)BabylonMaterial.TransparencyMode.ALPHATEST) { // Set the alphaCutOff value explicitely to avoid different interpretations on different engines // Use the glTF default value rather than the babylon one babylonMaterial.alphaCutOff = 0.5f; } if (babylonMaterial.emissiveTexture != null) { babylonMaterial.emissive = new[] { 1.0f, 1.0f, 1.0f }; } // Add babylon attributes if (babylonDecorator.Properties == null) { AddPhysicalBabylonAttributes(materialNode.MaterialName, babylonMaterial); } // List all babylon material attributes // Those attributes are currently stored into the native material // They should not be exported as extra attributes var doNotExport = BabylonCustomAttributeDecorator.ListPrivatePropertyNames().ToList(); // Export the custom attributes of this material babylonMaterial.metadata = ExportExtraAttributes(materialNode, babylonScene, doNotExport); if (exportParameters.pbrFull) { var fullPBR = new BabylonPBRMaterial(babylonMaterial) { directIntensity = babylonDecorator.DirectIntensity, emissiveIntensity = babylonDecorator.EmissiveIntensity, environmentIntensity = babylonDecorator.EnvironementIntensity, specularIntensity = babylonDecorator.SpecularIntensity, maxGameMaterial = babylonMaterial.maxGameMaterial }; babylonScene.MaterialsList.Add(fullPBR); } else { // Add the material to the scene babylonScene.MaterialsList.Add(babylonMaterial); } }
private void ConvertUnitySkyboxToBabylon(Camera camera, float progress) { // Skybox bool png = (exportationOptions.DefaultImageFormat == (int)BabylonImageFormat.PNG); string fext = (png == true) ? ".png" : ".jpg"; if ((camera.clearFlags & CameraClearFlags.Skybox) == CameraClearFlags.Skybox) { if (RenderSettings.skybox != null) { BabylonTexture skytex = null; if (RenderSettings.skybox.shader.name == "Skybox/Cubemap") { var cubeMap = RenderSettings.skybox.GetTexture("_Tex") as Cubemap; if (cubeMap != null) { var srcTexturePath = AssetDatabase.GetAssetPath(cubeMap); if (srcTexturePath.EndsWith(".hdr", StringComparison.OrdinalIgnoreCase)) { var hdr = new BabylonHDRCubeTexture(); hdr.size = cubeMap.width; skytex = hdr; CopyTextureCube(String.Format("{0}Skybox.hdr", SceneName), cubeMap, skytex, true); } else { skytex = new BabylonTexture(); CopyTextureCube(String.Format("{0}Skybox.hdr", SceneName), cubeMap, skytex, false); if (png) { skytex.extensions = new string[] { "_px.png", "_py.png", "_pz.png", "_nx.png", "_ny.png", "_nz.png" } } ; } } } else if (RenderSettings.skybox.shader.name == "Skybox/6 Sided") { var frontTexture = RenderSettings.skybox.GetTexture("_FrontTex") as Texture2D; var backTexture = RenderSettings.skybox.GetTexture("_BackTex") as Texture2D; var leftTexture = RenderSettings.skybox.GetTexture("_LeftTex") as Texture2D; var rightTexture = RenderSettings.skybox.GetTexture("_RightTex") as Texture2D; var upTexture = RenderSettings.skybox.GetTexture("_UpTex") as Texture2D; var downTexture = RenderSettings.skybox.GetTexture("_DownTex") as Texture2D; if (frontTexture != null && backTexture != null && leftTexture != null && rightTexture != null && upTexture != null && downTexture != null) { skytex = new BabylonTexture(); skytex.name = String.Format("{0}Skybox", SceneName); var frontTextureName = String.Format("{0}_pz{1}", skytex.name, fext); var frontTexturePath = Path.Combine(babylonScene.OutputPath, frontTextureName); CopyTextureFace(frontTexturePath, frontTextureName, frontTexture); var backTextureName = String.Format("{0}_nz{1}", skytex.name, fext); var backTexturePath = Path.Combine(babylonScene.OutputPath, backTextureName); CopyTextureFace(backTexturePath, backTextureName, backTexture); var leftTextureName = String.Format("{0}_px{1}", skytex.name, fext); var leftTexturePath = Path.Combine(babylonScene.OutputPath, leftTextureName); CopyTextureFace(leftTexturePath, leftTextureName, leftTexture); var rightTextureName = String.Format("{0}_nx{1}", skytex.name, fext); var rightTexturePath = Path.Combine(babylonScene.OutputPath, rightTextureName); CopyTextureFace(rightTexturePath, rightTextureName, rightTexture); var upTextureName = String.Format("{0}_py{1}", skytex.name, fext); var upTexturePath = Path.Combine(babylonScene.OutputPath, upTextureName); CopyTextureFace(upTexturePath, upTextureName, upTexture); var downTextureName = String.Format("{0}_ny{1}", skytex.name, fext); var downTexturePath = Path.Combine(babylonScene.OutputPath, downTextureName); CopyTextureFace(downTexturePath, downTexturePath, downTexture); if (png) { skytex.extensions = new string[] { "_px.png", "_py.png", "_pz.png", "_nx.png", "_ny.png", "_nz.png" } } ; } } if (skytex != null) { skytex.isCube = true; skytex.coordinatesMode = 5; skytex.level = (SceneController != null) ? SceneController.skyboxOptions.lightIntensity : 1.0f; var skybox = new BabylonMesh(); skybox.name = "sceneSkyboxMesh"; skybox.id = Guid.NewGuid().ToString(); skybox.indices = new[] { 0, 1, 2, 0, 2, 3, 4, 5, 6, 4, 6, 7, 8, 9, 10, 8, 10, 11, 12, 13, 14, 12, 14, 15, 16, 17, 18, 16, 18, 19, 20, 21, 22, 20, 22, 23 }; skybox.positions = new[] { 50.0f, -50.0f, 50.0f, -50.0f, -50.0f, 50.0f, -50.0f, 50.0f, 50.0f, 50.0f, 50.0f, 50.0f, 50.0f, 50.0f, -50.0f, -50.0f, 50.0f, -50.0f, -50.0f, -50.0f, -50.0f, 50.0f, -50.0f, -50.0f, 50.0f, 50.0f, -50.0f, 50.0f, -50.0f, -50.0f, 50.0f, -50.0f, 50.0f, 50.0f, 50.0f, 50.0f, -50.0f, 50.0f, 50.0f, -50.0f, -50.0f, 50.0f, -50.0f, -50.0f, -50.0f, -50.0f, 50.0f, -50.0f, -50.0f, 50.0f, 50.0f, -50.0f, 50.0f, -50.0f, 50.0f, 50.0f, -50.0f, 50.0f, 50.0f, 50.0f, 50.0f, -50.0f, 50.0f, 50.0f, -50.0f, -50.0f, -50.0f, -50.0f, -50.0f, -50.0f, -50.0f, 50.0f }; skybox.uvs = new[] { 1.0f, 1.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, 1.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, 1.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, 1.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, 1.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, 1.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f }; skybox.normals = new[] { 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, -1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0, 0f }; if (SceneController != null) { Color skycolor = SceneController.skyboxOptions.albedoColor; Color skyreflect = SceneController.skyboxOptions.reflectivityColor; var skyboxMaterial = new BabylonPBRMaterial() { name = "sceneSkyboxMaterial", id = Guid.NewGuid().ToString(), albedo = skycolor.ToFloat(), reflectivity = skyreflect.ToFloat(), microSurface = SceneController.skyboxOptions.microSurface, cameraContrast = SceneController.skyboxOptions.cameraContrast, cameraExposure = SceneController.skyboxOptions.cameraExposure, directIntensity = SceneController.skyboxOptions.directIntensity, emissiveIntensity = SceneController.skyboxOptions.emissiveIntensity, specularIntensity = SceneController.skyboxOptions.specularIntensity, environmentIntensity = SceneController.skyboxOptions.environmentIntensity }; skyboxMaterial.reflectionTexture = skytex; skyboxMaterial.backFaceCulling = false; skyboxMaterial.disableLighting = true; skybox.materialId = skyboxMaterial.id; skybox.infiniteDistance = true; babylonScene.MeshesList.Add(skybox); babylonScene.MaterialsList.Add(skyboxMaterial); babylonScene.AddTextureCube("sceneSkyboxMaterial"); } } } } } } }