IEnumerator LoadMaterials() { using (MeasureTime("LoadMaterials")) { if (GLTF.materials == null || !GLTF.materials.Any()) { AddMaterial(MaterialImporter.CreateMaterial(0, null, false)); } else { for (int i = 0; i < GLTF.materials.Count; ++i) { AddMaterial(MaterialImporter.CreateMaterial(i, GLTF.materials[i], GLTF.MaterialHasVertexColor(i))); } } } yield return(null); }
/// StandardShader vaiables /// /// _Color /// _MainTex /// _Cutoff /// _Glossiness /// _Metallic /// _MetallicGlossMap /// _BumpScale /// _BumpMap /// _Parallax /// _ParallaxMap /// _OcclusionStrength /// _OcclusionMap /// _EmissionColor /// _EmissionMap /// _DetailMask /// _DetailAlbedoMap /// _DetailNormalMapScale /// _DetailNormalMap /// _UVSec /// _EmissionScaleUI /// _EmissionColorUI /// _Mode /// _SrcBlend /// _DstBlend /// _ZWrite public virtual Material CreateMaterial(glTF gltf, int i, glTFMaterial x) { var shader = m_shaderStore.GetShader(x); //Debug.LogFormat("[{0}]{1}", i, shader.name); var material = new Material(shader); #if UNITY_EDITOR // textureImporter.SaveAndReimport(); may destory this material material.hideFlags = HideFlags.DontUnloadUnusedAsset; #endif material.name = (x == null || string.IsNullOrEmpty(x.name)) ? string.Format("material_{0:00}", i) : x.name ; if (x == null) { Debug.LogWarning("glTFMaterial is empty"); return(material); } // unlit material if (x.extensions != null && x.extensions.KHR_materials_unlit != null) { // texture if (x.pbrMetallicRoughness.baseColorTexture != null) { var texture = m_context.GetTexture(x.pbrMetallicRoughness.baseColorTexture.index); if (texture != null) { material.mainTexture = texture.Texture; } } // color if (x.pbrMetallicRoughness.baseColorFactor != null && x.pbrMetallicRoughness.baseColorFactor.Length == 4) { var color = x.pbrMetallicRoughness.baseColorFactor; material.color = new Color(color[0], color[1], color[2], color[3]); } //renderMode if (x.alphaMode == "OPAQUE") { Utils.SetRenderMode(material, UniUnlitRenderMode.Opaque); } else if (x.alphaMode == "BLEND") { Utils.SetRenderMode(material, UniUnlitRenderMode.Transparent); } else if (x.alphaMode == "MASK") { Utils.SetRenderMode(material, UniUnlitRenderMode.Cutout); } else { // default OPAQUE Utils.SetRenderMode(material, UniUnlitRenderMode.Opaque); } // culling if (x.doubleSided) { Utils.SetCullMode(material, UniUnlitCullMode.Off); } else { Utils.SetCullMode(material, UniUnlitCullMode.Back); } // VColor if (gltf != null && gltf.MaterialHasVertexColor(x)) { Utils.SetVColBlendMode(material, UniUnlitVertexColorBlendOp.Multiply); } Utils.ValidateProperties(material, true); return(material); } // PBR material if (x.pbrMetallicRoughness != null) { if (x.pbrMetallicRoughness.baseColorFactor != null && x.pbrMetallicRoughness.baseColorFactor.Length == 4) { var color = x.pbrMetallicRoughness.baseColorFactor; material.color = new Color(color[0], color[1], color[2], color[3]); } if (x.pbrMetallicRoughness.baseColorTexture != null && x.pbrMetallicRoughness.baseColorTexture.index != -1) { var texture = m_context.GetTexture(x.pbrMetallicRoughness.baseColorTexture.index); if (texture != null) { material.mainTexture = texture.Texture; } } if (x.pbrMetallicRoughness.metallicRoughnessTexture != null && x.pbrMetallicRoughness.metallicRoughnessTexture.index != -1) { material.EnableKeyword("_METALLICGLOSSMAP"); var texture = Context.GetTexture(x.pbrMetallicRoughness.metallicRoughnessTexture.index); if (texture != null) { var prop = "_MetallicGlossMap"; // Bake roughnessFactor values into a texture. material.SetTexture(prop, texture.ConvertTexture(prop, x.pbrMetallicRoughness.roughnessFactor)); } material.SetFloat("_Metallic", 1.0f); // Set 1.0f as hard-coded. See: https://github.com/dwango/UniVRM/issues/212. material.SetFloat("_GlossMapScale", 1.0f); } else { material.SetFloat("_Metallic", x.pbrMetallicRoughness.metallicFactor); material.SetFloat("_Glossiness", 1.0f - x.pbrMetallicRoughness.roughnessFactor); } } if (x.normalTexture != null && x.normalTexture.index != -1) { material.EnableKeyword("_NORMALMAP"); var texture = Context.GetTexture(x.normalTexture.index); if (texture != null) { var prop = "_BumpMap"; material.SetTexture(prop, texture.ConvertTexture(prop)); material.SetFloat("_BumpScale", x.normalTexture.scale); } } if (x.occlusionTexture != null && x.occlusionTexture.index != -1) { var texture = Context.GetTexture(x.occlusionTexture.index); if (texture != null) { var prop = "_OcclusionMap"; material.SetTexture(prop, texture.ConvertTexture(prop)); material.SetFloat("_OcclusionStrength", x.occlusionTexture.strength); } } if (x.emissiveFactor != null || (x.emissiveTexture != null && x.emissiveTexture.index != -1)) { material.EnableKeyword("_EMISSION"); material.globalIlluminationFlags &= ~MaterialGlobalIlluminationFlags.EmissiveIsBlack; if (x.emissiveFactor != null && x.emissiveFactor.Length == 3) { material.SetColor("_EmissionColor", new Color(x.emissiveFactor[0], x.emissiveFactor[1], x.emissiveFactor[2])); } if (x.emissiveTexture != null && x.emissiveTexture.index != -1) { var texture = Context.GetTexture(x.emissiveTexture.index); if (texture != null) { material.SetTexture("_EmissionMap", texture.Texture); } } } BlendMode blendMode = BlendMode.Opaque; // https://forum.unity.com/threads/standard-material-shader-ignoring-setfloat-property-_mode.344557/#post-2229980 switch (x.alphaMode) { case "BLEND": blendMode = BlendMode.Fade; material.SetOverrideTag("RenderType", "Transparent"); material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.SrcAlpha); material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.OneMinusSrcAlpha); material.SetInt("_ZWrite", 0); material.DisableKeyword("_ALPHATEST_ON"); material.EnableKeyword("_ALPHABLEND_ON"); material.DisableKeyword("_ALPHAPREMULTIPLY_ON"); material.renderQueue = 3000; break; case "MASK": blendMode = BlendMode.Cutout; material.SetOverrideTag("RenderType", "TransparentCutout"); material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.One); material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.Zero); material.SetInt("_ZWrite", 1); material.SetFloat("_Cutoff", x.alphaCutoff); material.EnableKeyword("_ALPHATEST_ON"); material.DisableKeyword("_ALPHABLEND_ON"); material.DisableKeyword("_ALPHAPREMULTIPLY_ON"); material.renderQueue = 2450; break; default: // OPAQUE blendMode = BlendMode.Opaque; material.SetOverrideTag("RenderType", ""); material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.One); material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.Zero); material.SetInt("_ZWrite", 1); material.DisableKeyword("_ALPHATEST_ON"); material.DisableKeyword("_ALPHABLEND_ON"); material.DisableKeyword("_ALPHAPREMULTIPLY_ON"); material.renderQueue = -1; break; } material.SetFloat("_Mode", (float)blendMode); return(material); }