/// <summary>
/// Add the KHR_texture_transform to the glTF file
/// </summary>
/// <param name="gltf"></param>
/// <param name="babylonMaterial"></param>
private void AddTextureTransformExtension(ref GLTF gltf, ref GLTFTextureInfo gltfTextureInfo, BabylonTexture babylonTexture)
{
if (!gltf.extensionsUsed.Contains(KHR_texture_transform))
{
gltf.extensionsUsed.Add(KHR_texture_transform);
}
if (!gltf.extensionsRequired.Contains(KHR_texture_transform))
{
gltf.extensionsRequired.Add(KHR_texture_transform);
}
float angle = babylonTexture.wAng;
float angleDirect = -babylonTexture.wAng;
KHR_texture_transform textureTransform = new KHR_texture_transform
{
offset = new float[] { babylonTexture.uOffset, -babylonTexture.vOffset },
rotation = angle,
scale = new float[] { babylonTexture.uScale, -babylonTexture.vScale },
texCoord = babylonTexture.coordinatesIndex
};
if (gltfTextureInfo.extensions == null)
{
gltfTextureInfo.extensions = new GLTFExtensions();
}
gltfTextureInfo.extensions[KHR_texture_transform] = textureTransform;
}
/// <summary>
/// Add the KHR_texture_transform to the glTF file
/// </summary>
/// <param name="gltf"></param>
/// <param name="babylonMaterial"></param>
private void AddTextureTransformExtension(ref GLTF gltf, ref GLTFTextureInfo gltfTextureInfo, BabylonTexture babylonTexture)
{
if (gltf.extensionsUsed.Contains(KHR_texture_transform) == false)
{
gltf.extensionsUsed.Add(KHR_texture_transform);
}
float angle = babylonTexture.wAng;
float angleDirect = -babylonTexture.wAng;
KHR_texture_transform textureTransform = new KHR_texture_transform
{
offset = new float[] { babylonTexture.uOffset, -babylonTexture.vOffset },
rotation = angle,
scale = new float[] { babylonTexture.uScale, babylonTexture.vScale },
texCoord = babylonTexture.coordinatesIndex
};
textureTransform.offset[1] += 1 - babylonTexture.vScale; // update vOffset according to the vScale
textureTransform.offset[0] += (float)(0.5 * (1 - (Math.Cos(angleDirect) - Math.Sin(angleDirect)))); // update uOffset according to the rotation
textureTransform.offset[1] += (float)(0.5 * (1 - (Math.Sin(angleDirect) + Math.Cos(angleDirect)))); // update vOffset according to the rotation
if (gltfTextureInfo.extensions == null)
{
gltfTextureInfo.extensions = new GLTFExtensions();
}
gltfTextureInfo.extensions[KHR_texture_transform] = textureTransform;
}
public void RegisterEmissive(GLTFTextureInfo TextureInfo, BabylonStandardMaterial babylonMaterial, float[] diffuse, float[] emissive)
{
string pathDiffuse;
string pathEmissive;
if (babylonMaterial.diffuseTexture != null)
{
pathDiffuse = babylonMaterial.diffuseTexture.originalPath;
}
else
{
pathDiffuse = "none";
}
if (babylonMaterial.emissiveTexture != null)
{
pathEmissive = babylonMaterial.emissiveTexture.originalPath;
}
else
{
pathEmissive = "none";
}
var _pair = CreatePair(pathDiffuse, pathEmissive, diffuse, emissive);
_DicoEmissiveTextureComponent.Add(_pair, TextureInfo);
}
public void AddStandText(TexturesPaths key, GLTFTextureInfo finalTextBC, GLTFTextureInfo finalTextMR)
{
var _valuePair = new PairBaseColorMetallicRoughness();
_valuePair.baseColor = finalTextBC;
_valuePair.metallicRoughness = finalTextMR;
_DicoMatTextureGLTF.Add(key, _valuePair);
}
private string TextureTransformID(GLTFTextureInfo gltfTextureInfo)
{
if (gltfTextureInfo.extensions == null || !gltfTextureInfo.extensions.ContainsKey(KHR_texture_transform))
{
return("");
}
else
{
// Set an id for the texture transform and append to the name
KHR_texture_transform textureTransform = gltfTextureInfo.extensions[GLTFExporter.KHR_texture_transform] as KHR_texture_transform;
var offsetID = textureTransform.offset[0] + "_" + textureTransform.offset[1];
var rotationID = textureTransform.rotation.ToString();
var scaleID = textureTransform.scale[0] + "_" + textureTransform.scale[1];
var textureTransformID = offsetID + "_" + rotationID + "_" + scaleID;
return(textureTransformID);
}
}
private GLTFTextureInfo ExportTexture(BabylonTexture babylonTexture, GLTF gltf, string name, Func <string> writeImageFunc)
{
if (babylonTexture == null)
{
return(null);
}
if (name == null)
{
name = babylonTexture.name;
}
logger.RaiseMessage("GLTFExporter.Texture | Export texture named: " + name, 2);
if (glTFTextureInfoMap.ContainsKey(babylonTexture.Id))
{
return(glTFTextureInfoMap[babylonTexture.Id]);
}
else
{
string validImageFormat = writeImageFunc.Invoke();
if (validImageFormat == null)
{
return(null);
}
name = Path.ChangeExtension(name, validImageFormat);
// --------------------------
// -------- Sampler ---------
// --------------------------
logger.RaiseMessage("GLTFExporter.Texture | create sampler", 3);
GLTFSampler gltfSampler = new GLTFSampler();
gltfSampler.index = gltf.SamplersList.Count;
// --- Retrieve info from babylon texture ---
// Mag and min filters
GLTFSampler.TextureMagFilter?magFilter;
GLTFSampler.TextureMinFilter?minFilter;
getSamplingParameters(babylonTexture.samplingMode, out magFilter, out minFilter);
gltfSampler.magFilter = magFilter;
gltfSampler.minFilter = minFilter;
// WrapS and wrapT
gltfSampler.wrapS = getWrapMode(babylonTexture.wrapU);
gltfSampler.wrapT = getWrapMode(babylonTexture.wrapV);
var matchingSampler = gltf.SamplersList.FirstOrDefault(sampler => sampler.wrapS == gltfSampler.wrapS && sampler.wrapT == gltfSampler.wrapT && sampler.magFilter == gltfSampler.magFilter && sampler.minFilter == gltfSampler.minFilter);
if (matchingSampler != null)
{
gltfSampler = matchingSampler;
}
else
{
gltf.SamplersList.Add(gltfSampler);
}
// --------------------------
// --------- Image ----------
// --------------------------
logger.RaiseMessage("GLTFExporter.Texture | create image", 3);
GLTFImage gltfImage = null;
if (glTFImageMap.ContainsKey(name))
{
gltfImage = glTFImageMap[name];
}
else
{
string textureUri = name;
if (!string.IsNullOrWhiteSpace(exportParameters.textureFolder))
{
textureUri = PathUtilities.GetRelativePath(exportParameters.outputPath, exportParameters.textureFolder) + "/" + name;
}
gltfImage = new GLTFImage
{
uri = textureUri
};
gltfImage.index = gltf.ImagesList.Count;
gltf.ImagesList.Add(gltfImage);
glTFImageMap.Add(name, gltfImage);
switch (validImageFormat)
{
case "jpg":
gltfImage.FileExtension = "jpeg";
break;
case "png":
gltfImage.FileExtension = "png";
break;
}
}
// --------------------------
// -------- Texture ---------
// --------------------------
logger.RaiseMessage("GLTFExporter.Texture | create texture", 3);
var gltfTexture = new GLTFTexture
{
name = name,
sampler = gltfSampler.index,
source = gltfImage.index
};
gltfTexture.index = gltf.TexturesList.Count;
gltf.TexturesList.Add(gltfTexture);
// --------------------------
// ------ TextureInfo -------
// --------------------------
var gltfTextureInfo = new GLTFTextureInfo
{
index = gltfTexture.index,
texCoord = babylonTexture.coordinatesIndex
};
if (!(babylonTexture.uOffset == 0) || !(babylonTexture.vOffset == 0) || !(babylonTexture.uScale == 1) || !(babylonTexture.vScale == -1) || !(babylonTexture.wAng == 0))
{
// Add texture extension if enabled in the export settings
if (exportParameters.enableKHRTextureTransform)
{
AddTextureTransformExtension(ref gltf, ref gltfTextureInfo, babylonTexture);
}
else
{
logger.RaiseWarning("GLTFExporter.Texture | KHR_texture_transform is not enabled, so the texture may look incorrect at runtime!", 3);
logger.RaiseWarning("GLTFExporter.Texture | KHR_texture_transform is not enabled, so the texture may look incorrect at runtime!", 3);
}
}
var textureID = name + TextureTransformID(gltfTextureInfo);
// Check for texture optimization. This is done here after the texture transform has been potentially applied to the texture extension
if (CheckIfImageIsRegistered(textureID))
{
var textureComponent = GetRegisteredTexture(textureID);
return(textureComponent);
}
// Add the texture in the dictionary
RegisterTexture(gltfTextureInfo, textureID);
glTFTextureInfoMap[babylonTexture.Id] = gltfTextureInfo;
return(gltfTextureInfo);
}
}
private void ExportMaterial(BabylonMaterial babylonMaterial, GLTF gltf)
{
var name = babylonMaterial.name;
var id = babylonMaterial.id;
logger.RaiseMessage("GLTFExporter.Material | Export material named: " + name, 1);
GLTFMaterial gltfMaterial = null;
string message = null;
IGLTFMaterialExporter customMaterialExporter = exportParameters.customGLTFMaterialExporter;
if (customMaterialExporter != null && customMaterialExporter.GetGltfMaterial(babylonMaterial, gltf, logger, out gltfMaterial))
{
gltfMaterial.index = gltf.MaterialsList.Count;
gltf.MaterialsList.Add(gltfMaterial);
}
else if (babylonMaterial.GetType() == typeof(BabylonStandardMaterial))
{
var babylonStandardMaterial = babylonMaterial as BabylonStandardMaterial;
// --- prints ---
#region prints
logger.RaiseVerbose("GLTFExporter.Material | babylonMaterial data", 2);
logger.RaiseVerbose("GLTFExporter.Material | babylonMaterial.alpha=" + babylonMaterial.alpha, 3);
logger.RaiseVerbose("GLTFExporter.Material | babylonMaterial.alphaMode=" + babylonMaterial.alphaMode, 3);
logger.RaiseVerbose("GLTFExporter.Material | babylonMaterial.backFaceCulling=" + babylonMaterial.backFaceCulling, 3);
logger.RaiseVerbose("GLTFExporter.Material | babylonMaterial.wireframe=" + babylonMaterial.wireframe, 3);
// Ambient
for (int i = 0; i < babylonStandardMaterial.ambient.Length; i++)
{
logger.RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.ambient[" + i + "]=" + babylonStandardMaterial.ambient[i], 3);
}
// Diffuse
logger.RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.diffuse.Length=" + babylonStandardMaterial.diffuse.Length, 3);
for (int i = 0; i < babylonStandardMaterial.diffuse.Length; i++)
{
logger.RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.diffuse[" + i + "]=" + babylonStandardMaterial.diffuse[i], 3);
}
if (babylonStandardMaterial.diffuseTexture == null)
{
logger.RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.diffuseTexture=null", 3);
}
else
{
logger.RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.diffuseTexture.name=" + babylonStandardMaterial.diffuseTexture.name, 3);
}
// Normal / bump
if (babylonStandardMaterial.bumpTexture == null)
{
logger.RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.bumpTexture=null", 3);
}
else
{
logger.RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.bumpTexture.name=" + babylonStandardMaterial.bumpTexture.name, 3);
}
// Opacity
if (babylonStandardMaterial.opacityTexture == null)
{
logger.RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.opacityTexture=null", 3);
}
else
{
logger.RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.opacityTexture.name=" + babylonStandardMaterial.opacityTexture.name, 3);
}
// Specular
for (int i = 0; i < babylonStandardMaterial.specular.Length; i++)
{
logger.RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.specular[" + i + "]=" + babylonStandardMaterial.specular[i], 3);
}
logger.RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.specularPower=" + babylonStandardMaterial.specularPower, 3);
if (babylonStandardMaterial.specularTexture == null)
{
logger.RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.specularTexture=null", 3);
}
else
{
logger.RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.specularTexture.name=" + babylonStandardMaterial.specularTexture.name, 3);
}
// Occlusion
if (babylonStandardMaterial.ambientTexture == null)
{
logger.RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.ambientTexture=null", 3);
}
else
{
logger.RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.ambientTexture.name=" + babylonStandardMaterial.ambientTexture.name, 3);
}
// Emissive
for (int i = 0; i < babylonStandardMaterial.emissive.Length; i++)
{
logger.RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.emissive[" + i + "]=" + babylonStandardMaterial.emissive[i], 3);
}
if (babylonStandardMaterial.emissiveTexture == null)
{
logger.RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.emissiveTexture=null", 3);
}
else
{
logger.RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.emissiveTexture.name=" + babylonStandardMaterial.emissiveTexture.name, 3);
}
#endregion
// --------------------------------
// --------- gltfMaterial ---------
// --------------------------------
logger.RaiseMessage("GLTFExporter.Material | create gltfMaterial", 2);
gltfMaterial = new GLTFMaterial
{
name = name
};
gltfMaterial.id = babylonMaterial.id;
gltfMaterial.index = gltf.MaterialsList.Count;
gltf.MaterialsList.Add(gltfMaterial);
// Alpha
string alphaMode;
float? alphaCutoff;
getAlphaMode(babylonStandardMaterial, out alphaMode, out alphaCutoff);
gltfMaterial.alphaMode = alphaMode;
gltfMaterial.alphaCutoff = alphaCutoff;
// DoubleSided
gltfMaterial.doubleSided = !babylonMaterial.backFaceCulling;
// Normal
gltfMaterial.normalTexture = ExportTexture(babylonStandardMaterial.bumpTexture, gltf);
// Occulison
gltfMaterial.occlusionTexture = ExportTexture(babylonStandardMaterial.ambientTexture, gltf);
// Emissive
gltfMaterial.emissiveFactor = babylonStandardMaterial.emissive;
// linkEmissiveWithDiffuse attribute doesn't have an equivalent in gltf format
// When true, the emissive texture needs to be manually multiplied with diffuse texture
// Otherwise, the emissive texture is assumed to be already pre-multiplied
if (babylonStandardMaterial.linkEmissiveWithDiffuse)
{
// Even when no emissive texture is provided, the self illumination value needs to be multiplied to the diffuse texture in order to get the pre-multiplied emissive (texture)
if (babylonStandardMaterial.emissiveTexture != null || babylonStandardMaterial.selfIllum > 0)
{
// Default emissive is the raw value of the self illumination
// It is not the babylon emissive value which is already pre-multiplied with diffuse color
float[] defaultEmissive = new float[] { 1, 1, 1 }.Multiply(babylonStandardMaterial.selfIllum);
gltfMaterial.emissiveTexture = ExportEmissiveTexture(babylonStandardMaterial, gltf, defaultEmissive, babylonStandardMaterial.diffuse);
}
}
else
{
gltfMaterial.emissiveTexture = ExportTexture(babylonStandardMaterial.emissiveTexture, gltf);
}
// Constraints
if (gltfMaterial.emissiveTexture != null)
{
gltfMaterial.emissiveFactor = new[] { 1.0f, 1.0f, 1.0f };
}
// --------------------------------
// --- gltfPbrMetallicRoughness ---
// --------------------------------
logger.RaiseMessage("GLTFExporter.Material | create gltfPbrMetallicRoughness", 2);
var gltfPbrMetallicRoughness = new GLTFPBRMetallicRoughness();
gltfMaterial.pbrMetallicRoughness = gltfPbrMetallicRoughness;
// --- Global ---
// Eye Ball correction to limit overall brightness from std to PBR.
// This only impacts the factors.
var correctedDiffuse = new BabylonColor3(babylonStandardMaterial.diffuse).scale(0.5f);
SpecularGlossiness _specularGlossiness = new SpecularGlossiness
{
diffuse = correctedDiffuse,
opacity = babylonMaterial.alpha,
specular = new BabylonColor3(babylonStandardMaterial.specular),
glossiness = babylonStandardMaterial.specularPower / 256
};
MetallicRoughness _metallicRoughness = ConvertToMetallicRoughness(_specularGlossiness, true);
// Base color
gltfPbrMetallicRoughness.baseColorFactor = new float[4]
{
_metallicRoughness.baseColor.r,
_metallicRoughness.baseColor.g,
_metallicRoughness.baseColor.b,
_metallicRoughness.opacity
};
// Metallic roughness
gltfPbrMetallicRoughness.metallicFactor = _metallicRoughness.metallic;
gltfPbrMetallicRoughness.roughnessFactor = _metallicRoughness.roughness;
// --- Textures ---
var babylonTexture = babylonStandardMaterial.diffuseTexture != null ? babylonStandardMaterial.diffuseTexture :
babylonStandardMaterial.specularTexture != null ? babylonStandardMaterial.specularTexture :
babylonStandardMaterial.opacityTexture != null ? babylonStandardMaterial.opacityTexture :
null;
if (babylonTexture != null)
{
//Check if the texture already exist
var _key = SetStandText(babylonStandardMaterial);
if (GetStandTextInfo(_key) != null)
{
var _pairBCMR = GetStandTextInfo(_key);
gltfPbrMetallicRoughness.baseColorTexture = _pairBCMR.baseColor;
gltfPbrMetallicRoughness.metallicRoughnessTexture = _pairBCMR.metallicRoughness;
}
else
{
bool isAlphaInTexture = (isTextureOk(babylonStandardMaterial.diffuseTexture) && babylonStandardMaterial.diffuseTexture.hasAlpha) ||
isTextureOk(babylonStandardMaterial.opacityTexture);
Bitmap baseColorBitmap = null;
Bitmap metallicRoughnessBitmap = null;
GLTFTextureInfo textureInfoBC = new GLTFTextureInfo();
GLTFTextureInfo textureInfoMR = new GLTFTextureInfo();
if (exportParameters.writeTextures)
{
// Diffuse
Bitmap diffuseBitmap = null;
if (babylonStandardMaterial.diffuseTexture != null)
{
diffuseBitmap = TextureUtilities.LoadTexture(babylonStandardMaterial.diffuseTexture.originalPath, logger);
}
// Specular
Bitmap specularBitmap = null;
if (babylonStandardMaterial.specularTexture != null)
{
if (babylonStandardMaterial.specularTexture.bitmap != null)
{
// Specular color map has been computed by the exporter
specularBitmap = babylonStandardMaterial.specularTexture.bitmap;
}
else
{
// Specular color map is straight input
specularBitmap = TextureUtilities.LoadTexture(babylonStandardMaterial.specularTexture.originalPath, logger);
}
}
// Opacity / Alpha / Transparency
Bitmap opacityBitmap = null;
if ((babylonStandardMaterial.diffuseTexture == null || babylonStandardMaterial.diffuseTexture.hasAlpha == false) && babylonStandardMaterial.opacityTexture != null)
{
opacityBitmap = TextureUtilities.LoadTexture(babylonStandardMaterial.opacityTexture.originalPath, logger);
}
if (diffuseBitmap != null || specularBitmap != null || opacityBitmap != null)
{
// Retreive dimensions
int width = 0;
int height = 0;
var haveSameDimensions = TextureUtilities.GetMinimalBitmapDimensions(out width, out height, diffuseBitmap, specularBitmap, opacityBitmap);
if (!haveSameDimensions)
{
logger.RaiseError("Diffuse, specular and opacity maps should have same dimensions", 2);
}
// Create baseColor+alpha and metallic+roughness maps
baseColorBitmap = new Bitmap(width, height);
metallicRoughnessBitmap = new Bitmap(width, height);
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
SpecularGlossiness specularGlossinessTexture = new SpecularGlossiness
{
diffuse = diffuseBitmap != null ? new BabylonColor3(diffuseBitmap.GetPixel(x, y)) :
_specularGlossiness.diffuse,
opacity = diffuseBitmap != null && babylonStandardMaterial.diffuseTexture.hasAlpha ? diffuseBitmap.GetPixel(x, y).A / 255.0f :
opacityBitmap != null && babylonStandardMaterial.opacityTexture.getAlphaFromRGB ? opacityBitmap.GetPixel(x, y).R / 255.0f :
opacityBitmap != null && babylonStandardMaterial.opacityTexture.getAlphaFromRGB == false?opacityBitmap.GetPixel(x, y).A / 255.0f :
_specularGlossiness.opacity,
specular = specularBitmap != null ? new BabylonColor3(specularBitmap.GetPixel(x, y)) :
_specularGlossiness.specular,
glossiness = babylonStandardMaterial.useGlossinessFromSpecularMapAlpha && specularBitmap != null?specularBitmap.GetPixel(x, y).A / 255.0f :
_specularGlossiness.glossiness
};
var displayPrints = x == width / 2 && y == height / 2;
MetallicRoughness metallicRoughnessTexture = ConvertToMetallicRoughness(specularGlossinessTexture, displayPrints);
Color colorBase = Color.FromArgb(
(int)(metallicRoughnessTexture.opacity * 255),
(int)(metallicRoughnessTexture.baseColor.r * 255),
(int)(metallicRoughnessTexture.baseColor.g * 255),
(int)(metallicRoughnessTexture.baseColor.b * 255)
);
baseColorBitmap.SetPixel(x, y, colorBase);
// The metalness values are sampled from the B channel.
// The roughness values are sampled from the G channel.
// These values are linear. If other channels are present (R or A), they are ignored for metallic-roughness calculations.
Color colorMetallicRoughness = Color.FromArgb(
0,
(int)(metallicRoughnessTexture.roughness * 255),
(int)(metallicRoughnessTexture.metallic * 255)
);
metallicRoughnessBitmap.SetPixel(x, y, colorMetallicRoughness);
}
}
}
}
//export textures
if (baseColorBitmap != null || babylonTexture.bitmap != null)
{
textureInfoBC = ExportBitmapTexture(gltf, babylonTexture, baseColorBitmap);
gltfPbrMetallicRoughness.baseColorTexture = textureInfoBC;
}
if (isTextureOk(babylonStandardMaterial.specularTexture))
{
textureInfoMR = ExportBitmapTexture(gltf, babylonTexture, metallicRoughnessBitmap);
gltfPbrMetallicRoughness.metallicRoughnessTexture = textureInfoMR;
}
//register the texture
AddStandText(_key, textureInfoBC, textureInfoMR);
}
// Constraints
if (gltfPbrMetallicRoughness.baseColorTexture != null)
{
gltfPbrMetallicRoughness.baseColorFactor = new[] { 1.0f, 1.0f, 1.0f, 1.0f };
}
if (gltfPbrMetallicRoughness.metallicRoughnessTexture != null)
{
gltfPbrMetallicRoughness.metallicFactor = 1.0f;
gltfPbrMetallicRoughness.roughnessFactor = 1.0f;
}
}
}
else if (babylonMaterial.GetType() == typeof(BabylonPBRMetallicRoughnessMaterial))
{
var babylonPBRMetallicRoughnessMaterial = babylonMaterial as BabylonPBRMetallicRoughnessMaterial;
// --- prints ---
#region prints
logger.RaiseVerbose("GLTFExporter.Material | babylonMaterial data", 2);
logger.RaiseVerbose("GLTFExporter.Material | babylonMaterial.alpha=" + babylonMaterial.alpha, 3);
logger.RaiseVerbose("GLTFExporter.Material | babylonMaterial.alphaMode=" + babylonMaterial.alphaMode, 3);
logger.RaiseVerbose("GLTFExporter.Material | babylonMaterial.backFaceCulling=" + babylonMaterial.backFaceCulling, 3);
logger.RaiseVerbose("GLTFExporter.Material | babylonMaterial.wireframe=" + babylonMaterial.wireframe, 3);
// Global
logger.RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.maxSimultaneousLights=" + babylonPBRMetallicRoughnessMaterial.maxSimultaneousLights, 3);
logger.RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.disableLighting=" + babylonPBRMetallicRoughnessMaterial.disableLighting, 3);
logger.RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.alphaCutOff=" + babylonPBRMetallicRoughnessMaterial.alphaCutOff, 3);
logger.RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.transparencyMode=" + babylonPBRMetallicRoughnessMaterial.transparencyMode, 3);
logger.RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.doubleSided=" + babylonPBRMetallicRoughnessMaterial.doubleSided, 3);
// Base color
logger.RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.baseColor.Length=" + babylonPBRMetallicRoughnessMaterial.baseColor.Length, 3);
for (int i = 0; i < babylonPBRMetallicRoughnessMaterial.baseColor.Length; i++)
{
logger.RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.baseColor[" + i + "]=" + babylonPBRMetallicRoughnessMaterial.baseColor[i], 3);
}
if (babylonPBRMetallicRoughnessMaterial.baseTexture == null)
{
logger.RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.baseTexture=null", 3);
}
// Metallic+roughness
logger.RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.metallic=" + babylonPBRMetallicRoughnessMaterial.metallic, 3);
logger.RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.roughness=" + babylonPBRMetallicRoughnessMaterial.roughness, 3);
if (babylonPBRMetallicRoughnessMaterial.metallicRoughnessTexture == null)
{
logger.RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.metallicRoughnessTexture=null", 3);
}
// Normal / bump
if (babylonPBRMetallicRoughnessMaterial.normalTexture == null)
{
logger.RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.normalTexture=null", 3);
}
logger.RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.invertNormalMapX=" + babylonPBRMetallicRoughnessMaterial.invertNormalMapX, 3);
logger.RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.invertNormalMapY=" + babylonPBRMetallicRoughnessMaterial.invertNormalMapY, 3);
// Emissive
for (int i = 0; i < babylonPBRMetallicRoughnessMaterial.emissive.Length; i++)
{
logger.RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.emissiveColor[" + i + "]=" + babylonPBRMetallicRoughnessMaterial.emissive[i], 3);
}
if (babylonPBRMetallicRoughnessMaterial.emissiveTexture == null)
{
logger.RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.emissiveTexture=null", 3);
}
// Ambient occlusion
logger.RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.occlusionStrength=" + babylonPBRMetallicRoughnessMaterial.occlusionStrength, 3);
if (babylonPBRMetallicRoughnessMaterial.occlusionTexture == null)
{
logger.RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.occlusionTexture=null", 3);
}
#endregion
// --------------------------------
// --------- gltfMaterial ---------
// --------------------------------
logger.RaiseMessage("GLTFExporter.Material | create gltfMaterial", 2);
gltfMaterial = new GLTFMaterial
{
name = name
};
gltfMaterial.id = babylonMaterial.id;
gltfMaterial.index = gltf.MaterialsList.Count;
gltf.MaterialsList.Add(gltfMaterial);
// Alpha
string alphaMode;
float? alphaCutoff;
getAlphaMode(babylonPBRMetallicRoughnessMaterial, out alphaMode, out alphaCutoff);
gltfMaterial.alphaMode = alphaMode;
gltfMaterial.alphaCutoff = alphaCutoff;
// DoubleSided
gltfMaterial.doubleSided = babylonPBRMetallicRoughnessMaterial.doubleSided;
// Normal
gltfMaterial.normalTexture = ExportTexture(babylonPBRMetallicRoughnessMaterial.normalTexture, gltf);
// Occlusion
if (babylonPBRMetallicRoughnessMaterial.occlusionTexture != null)
{
if (babylonPBRMetallicRoughnessMaterial.occlusionTexture.bitmap != null)
{
// ORM texture has been merged manually by the exporter
// Occlusion is defined as well as metallic and/or roughness
logger.RaiseVerbose("Occlusion is defined as well as metallic and/or roughness", 2);
gltfMaterial.occlusionTexture = ExportBitmapTexture(gltf, babylonPBRMetallicRoughnessMaterial.occlusionTexture);
}
else
{
// ORM texture was already merged or only occlusion is defined
logger.RaiseVerbose("ORM texture was already merged or only occlusion is defined", 2);
gltfMaterial.occlusionTexture = ExportTexture(babylonPBRMetallicRoughnessMaterial.occlusionTexture, gltf);
}
}
// Emissive
gltfMaterial.emissiveFactor = babylonPBRMetallicRoughnessMaterial.emissive;
gltfMaterial.emissiveTexture = ExportTexture(babylonPBRMetallicRoughnessMaterial.emissiveTexture, gltf);
// --------------------------------
// --- gltfPbrMetallicRoughness ---
// --------------------------------
logger.RaiseMessage("GLTFExporter.Material | create gltfPbrMetallicRoughness", 2);
var gltfPbrMetallicRoughness = new GLTFPBRMetallicRoughness();
gltfMaterial.pbrMetallicRoughness = gltfPbrMetallicRoughness;
// --- Global ---
// Base color
gltfPbrMetallicRoughness.baseColorFactor = new float[4]
{
babylonPBRMetallicRoughnessMaterial.baseColor[0],
babylonPBRMetallicRoughnessMaterial.baseColor[1],
babylonPBRMetallicRoughnessMaterial.baseColor[2],
babylonPBRMetallicRoughnessMaterial.alpha
};
if (babylonPBRMetallicRoughnessMaterial.baseTexture != null)
{
if (babylonPBRMetallicRoughnessMaterial.baseTexture.bitmap != null)
{
gltfPbrMetallicRoughness.baseColorTexture = ExportBitmapTexture(gltf, babylonPBRMetallicRoughnessMaterial.baseTexture);
}
else
{
gltfPbrMetallicRoughness.baseColorTexture = ExportTexture(babylonPBRMetallicRoughnessMaterial.baseTexture, gltf);
}
}
// Metallic roughness
gltfPbrMetallicRoughness.metallicFactor = babylonPBRMetallicRoughnessMaterial.metallic;
gltfPbrMetallicRoughness.roughnessFactor = babylonPBRMetallicRoughnessMaterial.roughness;
if (babylonPBRMetallicRoughnessMaterial.metallicRoughnessTexture != null)
{
if (babylonPBRMetallicRoughnessMaterial.metallicRoughnessTexture == babylonPBRMetallicRoughnessMaterial.occlusionTexture)
{
// Occlusion is defined as well as metallic and/or roughness
// Use same texture
logger.RaiseVerbose("Occlusion is defined as well as metallic and/or roughness", 2);
gltfPbrMetallicRoughness.metallicRoughnessTexture = gltfMaterial.occlusionTexture;
}
else
{
// Occlusion is not defined, only metallic and/or roughness
logger.RaiseVerbose("Occlusion is not defined, only metallic and/or roughness", 2);
if (babylonPBRMetallicRoughnessMaterial.metallicRoughnessTexture.bitmap != null)
{
// Metallic & roughness texture has been merged manually by the exporter
// Write bitmap file
logger.RaiseVerbose("Metallic & roughness texture has been merged manually by the exporter", 2);
gltfPbrMetallicRoughness.metallicRoughnessTexture = ExportBitmapTexture(gltf, babylonPBRMetallicRoughnessMaterial.metallicRoughnessTexture);
}
else
{
// Metallic & roughness texture was already merged
// Copy file
logger.RaiseVerbose("Metallic & roughness texture was already merged", 2);
gltfPbrMetallicRoughness.metallicRoughnessTexture = ExportTexture(babylonPBRMetallicRoughnessMaterial.metallicRoughnessTexture, gltf);
}
}
}
}
else
{
logger.RaiseWarning("GLTFExporter.Material | Unsupported material type: " + babylonMaterial.GetType(), 2);
}
if (gltfMaterial != null && babylonMaterial.isUnlit)
{
// Add Unlit extension
if (!exportParameters.enableKHRMaterialsUnlit)
{
logger.RaiseWarning("GLTFExporter.Material | KHR_materials_unlit has not been enabled for export!", 2);
}
else
{
if (gltfMaterial.extensions == null)
{
gltfMaterial.extensions = new GLTFExtensions();
}
if (gltf.extensionsUsed == null)
{
gltf.extensionsUsed = new System.Collections.Generic.List <string>();
}
if (!gltf.extensionsUsed.Contains("KHR_materials_unlit"))
{
gltf.extensionsUsed.Add("KHR_materials_unlit");
}
gltfMaterial.extensions["KHR_materials_unlit"] = new object();
}
}
ExportGLTFExtension(babylonMaterial, ref gltfMaterial, gltf);
}
public void RegisterTexture(GLTFTextureInfo TextureInfo, string name)
{
_DicoTextNameTextureComponent.Add(name, TextureInfo);
}
private GLTFTextureInfo ExportTexture(BabylonTexture babylonTexture, GLTF gltf, string name, Func <string> writeImageFunc)
{
if (babylonTexture == null)
{
return(null);
}
if (name == null)
{
name = babylonTexture.name;
}
//Check for texture optimisation
if (CheckIfImageIsRegistered(name))
{
var TextureComponent = GetRegisteredTexture(name);
return(TextureComponent);
}
RaiseMessage("GLTFExporter.Texture | Export texture named: " + name, 2);
string validImageFormat = writeImageFunc.Invoke();
if (validImageFormat == null)
{
return(null);
}
name = Path.ChangeExtension(name, validImageFormat);
// --------------------------
// -------- Sampler ---------
// --------------------------
RaiseMessage("GLTFExporter.Texture | create sampler", 3);
GLTFSampler gltfSampler = new GLTFSampler();
gltfSampler.index = gltf.SamplersList.Count;
gltf.SamplersList.Add(gltfSampler);
// --- Retreive info from babylon texture ---
// Mag and min filters
GLTFSampler.TextureMagFilter?magFilter;
GLTFSampler.TextureMinFilter?minFilter;
getSamplingParameters(babylonTexture.samplingMode, out magFilter, out minFilter);
gltfSampler.magFilter = magFilter;
gltfSampler.minFilter = minFilter;
// WrapS and wrapT
gltfSampler.wrapS = getWrapMode(babylonTexture.wrapU);
gltfSampler.wrapT = getWrapMode(babylonTexture.wrapV);
// --------------------------
// --------- Image ----------
// --------------------------
RaiseMessage("GLTFExporter.Texture | create image", 3);
GLTFImage gltfImage = new GLTFImage
{
uri = name
};
gltfImage.index = gltf.ImagesList.Count;
gltf.ImagesList.Add(gltfImage);
switch (validImageFormat)
{
case "jpg":
gltfImage.FileExtension = "jpeg";
break;
case "png":
gltfImage.FileExtension = "png";
break;
}
// --------------------------
// -------- Texture ---------
// --------------------------
RaiseMessage("GLTFExporter.Texture | create texture", 3);
var gltfTexture = new GLTFTexture
{
name = name,
sampler = gltfSampler.index,
source = gltfImage.index
};
gltfTexture.index = gltf.TexturesList.Count;
gltf.TexturesList.Add(gltfTexture);
// --------------------------
// ------ TextureInfo -------
// --------------------------
var gltfTextureInfo = new GLTFTextureInfo
{
index = gltfTexture.index,
texCoord = babylonTexture.coordinatesIndex
};
// Add texture extension
if (babylonTexture.uOffset != 0f || babylonTexture.vOffset != 0f || babylonTexture.uScale != 1f || babylonTexture.vScale != 1f || babylonTexture.wAng != 0f)
{
AddTextureTransformExtension(ref gltf, ref gltfTextureInfo, babylonTexture);
}
// Add the texture in the dictionary
RegisterTexture(gltfTextureInfo, name);
return(gltfTextureInfo);
}
private GLTFTextureInfo ExportTexture(BabylonTexture babylonTexture, GLTF gltf, string name, Func <string> writeImageFunc)
{
if (babylonTexture == null)
{
return(null);
}
if (name == null)
{
name = babylonTexture.name;
}
RaiseMessage("GLTFExporter.Texture | Export texture named: " + name, 2);
string validImageFormat = writeImageFunc.Invoke();
if (validImageFormat == null)
{
return(null);
}
name = Path.ChangeExtension(name, validImageFormat);
// --------------------------
// -------- Sampler ---------
// --------------------------
RaiseMessage("GLTFExporter.Texture | create sampler", 3);
GLTFSampler gltfSampler = new GLTFSampler();
gltfSampler.index = gltf.SamplersList.Count;
gltf.SamplersList.Add(gltfSampler);
// --- Retreive info from babylon texture ---
// Mag and min filters
GLTFSampler.TextureMagFilter?magFilter;
GLTFSampler.TextureMinFilter?minFilter;
getSamplingParameters(babylonTexture.samplingMode, out magFilter, out minFilter);
gltfSampler.magFilter = magFilter;
gltfSampler.minFilter = minFilter;
// WrapS and wrapT
gltfSampler.wrapS = getWrapMode(babylonTexture.wrapU);
gltfSampler.wrapT = getWrapMode(babylonTexture.wrapV);
// --------------------------
// --------- Image ----------
// --------------------------
RaiseMessage("GLTFExporter.Texture | create image", 3);
GLTFImage gltfImage = new GLTFImage
{
uri = name
};
gltfImage.index = gltf.ImagesList.Count;
gltf.ImagesList.Add(gltfImage);
switch (validImageFormat)
{
case "jpg":
gltfImage.FileExtension = "jpeg";
break;
case "png":
gltfImage.FileExtension = "png";
break;
}
// --------------------------
// -------- Texture ---------
// --------------------------
RaiseMessage("GLTFExporter.Texture | create texture", 3);
var gltfTexture = new GLTFTexture
{
name = name,
sampler = gltfSampler.index,
source = gltfImage.index
};
gltfTexture.index = gltf.TexturesList.Count;
gltf.TexturesList.Add(gltfTexture);
// --------------------------
// ------ TextureInfo -------
// --------------------------
var gltfTextureInfo = new GLTFTextureInfo
{
index = gltfTexture.index
};
return(gltfTextureInfo);
}
private GLTFTextureInfo ExportTexture(BabylonTexture babylonTexture, GLTF gltf, string name = null)
{
if (babylonTexture == null)
{
return(null);
}
if (name == null)
{
name = babylonTexture.name;
}
RaiseMessage("GLTFExporter.Texture | Export texture named: " + name, 1);
// --------------------------
// -------- Sampler ---------
// --------------------------
RaiseMessage("GLTFExporter.Texture | create sampler", 2);
GLTFSampler gltfSampler = new GLTFSampler();
gltfSampler.index = gltf.SamplersList.Count;
gltf.SamplersList.Add(gltfSampler);
// --- Retreive info from babylon texture ---
// Mag and min filters
GLTFSampler.TextureMagFilter?magFilter;
GLTFSampler.TextureMinFilter?minFilter;
getSamplingParameters(babylonTexture.samplingMode, out magFilter, out minFilter);
gltfSampler.magFilter = magFilter;
gltfSampler.minFilter = minFilter;
// WrapS and wrapT
gltfSampler.wrapS = getWrapMode(babylonTexture.wrapU);
gltfSampler.wrapT = getWrapMode(babylonTexture.wrapV);
// --------------------------
// --------- Image ----------
// --------------------------
RaiseMessage("GLTFExporter.Texture | create image", 2);
GLTFImage gltfImage = new GLTFImage
{
uri = name
};
gltfImage.index = gltf.ImagesList.Count;
gltf.ImagesList.Add(gltfImage);
// --------------------------
// -------- Texture ---------
// --------------------------
RaiseMessage("GLTFExporter.Texture | create texture", 2);
var gltfTexture = new GLTFTexture
{
name = name,
sampler = gltfSampler.index,
source = gltfImage.index
};
gltfTexture.index = gltf.TexturesList.Count;
gltf.TexturesList.Add(gltfTexture);
// --------------------------
// ------ TextureInfo -------
// --------------------------
var gltfTextureInfo = new GLTFTextureInfo
{
index = gltfTexture.index
};
// TODO - Animations
return(gltfTextureInfo);
}
private GLTFTextureInfo ExportTexture(BabylonTexture babylonTexture, GLTF gltf, string name)
{
if (babylonTexture == null)
{
return(null);
}
if (name == null)
{
name = babylonTexture.name;
}
logger.RaiseMessage("GLTFExporter.Texture | Export texture named: " + name, 2);
if (glTFTextureInfoMap.ContainsKey(babylonTexture.Id))
{
return(glTFTextureInfoMap[babylonTexture.Id]);
}
else
{
var sourcePath = babylonTexture.originalPath;
if (babylonTexture.bitmap != null)
{
sourcePath = Path.Combine(gltf.OutputFolder, name);
}
if (sourcePath == null || sourcePath == "")
{
logger.RaiseWarning("Texture path is missing.", 3);
return(null);
}
var validImageFormat = TextureUtilities.GetValidImageFormat(Path.GetExtension(sourcePath));
if (validImageFormat == null)
{
// Image format is not supported by the exporter
logger.RaiseWarning(string.Format("Format of texture {0} is not supported by the exporter. Consider using a standard image format like jpg or png.", Path.GetFileName(sourcePath)), 3);
return(null);
}
var destPath = Path.Combine(gltf.OutputFolder, name);
destPath = Path.ChangeExtension(destPath, validImageFormat);
name = Path.ChangeExtension(name, validImageFormat);
// --------------------------
// -------- Sampler ---------
// --------------------------
logger.RaiseMessage("GLTFExporter.Texture | create sampler", 3);
GLTFSampler gltfSampler = new GLTFSampler();
gltfSampler.index = gltf.SamplersList.Count;
// --- Retrieve info from babylon texture ---
// Mag and min filters
GLTFSampler.TextureMagFilter?magFilter;
GLTFSampler.TextureMinFilter?minFilter;
getSamplingParameters(babylonTexture.samplingMode, out magFilter, out minFilter);
gltfSampler.magFilter = magFilter;
gltfSampler.minFilter = minFilter;
// WrapS and wrapT
gltfSampler.wrapS = getWrapMode(babylonTexture.wrapU);
gltfSampler.wrapT = getWrapMode(babylonTexture.wrapV);
var matchingSampler = gltf.SamplersList.FirstOrDefault(sampler => sampler.wrapS == gltfSampler.wrapS && sampler.wrapT == gltfSampler.wrapT && sampler.magFilter == gltfSampler.magFilter && sampler.minFilter == gltfSampler.minFilter);
if (matchingSampler != null)
{
gltfSampler = matchingSampler;
}
else
{
gltf.SamplersList.Add(gltfSampler);
}
// --------------------------
// --------- Image ----------
// --------------------------
logger.RaiseMessage("GLTFExporter.Texture | create image", 3);
GLTFImage gltfImage = null;
if (glTFImageMap.ContainsKey(name))
{
gltfImage = glTFImageMap[name];
}
else
{
string textureUri = name;
if (!string.IsNullOrWhiteSpace(exportParameters.textureFolder))
{
textureUri = PathUtilities.GetRelativePath(exportParameters.outputPath, exportParameters.textureFolder);
textureUri = Path.Combine(textureUri, name);
}
gltfImage = new GLTFImage
{
uri = textureUri
};
gltfImage.index = gltf.ImagesList.Count;
gltf.ImagesList.Add(gltfImage);
switch (validImageFormat)
{
case "jpg":
gltfImage.FileExtension = "jpeg";
break;
case "png":
gltfImage.FileExtension = "png";
break;
}
if (exportParameters.outputFormat == "glb")
{
var imageBufferView = WriteImageToGltfBuffer(gltf, gltfImage, sourcePath, babylonTexture.bitmap);
gltfImage.uri = null;
gltfImage.bufferView = imageBufferView.index;
gltfImage.mimeType = "image/" + gltfImage.FileExtension;
}
else
{
if (exportParameters.writeTextures)
{
if (babylonTexture.bitmap != null)
{
// We may have modified this texture image, copy the buffer contents to disk
var extension = Path.GetExtension(name).ToLower();
var imageFormat = extension == ".jpg" ? System.Drawing.Imaging.ImageFormat.Jpeg : System.Drawing.Imaging.ImageFormat.Png;
logger.RaiseMessage($"GLTFExporter.Texture | write image '{name}' to '{destPath}'", 3);
TextureUtilities.SaveBitmap(babylonTexture.bitmap, destPath, imageFormat, exportParameters.txtQuality, logger);
}
else
{
// Copy texture from source to output
TextureUtilities.CopyTexture(sourcePath, destPath, exportParameters.txtQuality, logger);
}
}
}
glTFImageMap.Add(name, gltfImage);
}
// --------------------------
// -------- Texture ---------
// --------------------------
logger.RaiseMessage("GLTFExporter.Texture | create texture", 3);
var gltfTexture = new GLTFTexture
{
name = name,
sampler = gltfSampler.index,
source = gltfImage.index
};
gltfTexture.index = gltf.TexturesList.Count;
if (!CheckIfImageIsRegistered(name))
{
gltf.TexturesList.Add(gltfTexture);
}
else
{
gltfTexture = gltf.TexturesList[GetRegisteredTexture(gltfTexture.name).index];
}
// --------------------------
// ------ TextureInfo -------
// --------------------------
var gltfTextureInfo = new GLTFTextureInfo
{
index = gltfTexture.index,
texCoord = babylonTexture.coordinatesIndex
};
if (!(babylonTexture.uOffset == 0) || !(babylonTexture.vOffset == 0) || !(babylonTexture.uScale == 1) || !(babylonTexture.vScale == 1) || !(babylonTexture.wAng == 0))
{
// Add texture extension if enabled in the export settings
if (exportParameters.enableKHRTextureTransform)
{
AddTextureTransformExtension(ref gltf, ref gltfTextureInfo, babylonTexture);
}
else
{
logger.RaiseWarning("GLTFExporter.Texture | KHR_texture_transform is not enabled, so the texture may look incorrect at runtime!", 3);
logger.RaiseWarning("GLTFExporter.Texture | KHR_texture_transform is not enabled, so the texture may look incorrect at runtime!", 3);
}
}
var textureID = name + TextureTransformID(gltfTextureInfo);
// Check for texture optimization. This is done here after the texture transform has been potentially applied to the texture extension
if (CheckIfImageIsRegistered(textureID))
{
var textureComponent = GetRegisteredTexture(textureID);
return(textureComponent);
}
// Add the texture in the dictionary
RegisterTexture(gltfTextureInfo, textureID);
glTFTextureInfoMap[babylonTexture.Id] = gltfTextureInfo;
return(gltfTextureInfo);
}
}
private void ExportMaterial(BabylonMaterial babylonMaterial, GLTF gltf)
{
var name = babylonMaterial.name;
var id = babylonMaterial.id;
RaiseMessage("GLTFExporter.Material | Export material named: " + name, 1);
if (babylonMaterial.GetType() == typeof(BabylonStandardMaterial))
{
var babylonStandardMaterial = babylonMaterial as BabylonStandardMaterial;
// --- prints ---
#region prints
RaiseVerbose("GLTFExporter.Material | babylonMaterial data", 2);
RaiseVerbose("GLTFExporter.Material | babylonMaterial.alpha=" + babylonMaterial.alpha, 3);
RaiseVerbose("GLTFExporter.Material | babylonMaterial.alphaMode=" + babylonMaterial.alphaMode, 3);
RaiseVerbose("GLTFExporter.Material | babylonMaterial.backFaceCulling=" + babylonMaterial.backFaceCulling, 3);
RaiseVerbose("GLTFExporter.Material | babylonMaterial.wireframe=" + babylonMaterial.wireframe, 3);
// Ambient
for (int i = 0; i < babylonStandardMaterial.ambient.Length; i++)
{
RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.ambient[" + i + "]=" + babylonStandardMaterial.ambient[i], 3);
}
// Diffuse
RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.diffuse.Length=" + babylonStandardMaterial.diffuse.Length, 3);
for (int i = 0; i < babylonStandardMaterial.diffuse.Length; i++)
{
RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.diffuse[" + i + "]=" + babylonStandardMaterial.diffuse[i], 3);
}
if (babylonStandardMaterial.diffuseTexture == null)
{
RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.diffuseTexture=null", 3);
}
else
{
RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.diffuseTexture.name=" + babylonStandardMaterial.diffuseTexture.name, 3);
}
// Normal / bump
if (babylonStandardMaterial.bumpTexture == null)
{
RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.bumpTexture=null", 3);
}
else
{
RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.bumpTexture.name=" + babylonStandardMaterial.bumpTexture.name, 3);
}
// Opacity
if (babylonStandardMaterial.opacityTexture == null)
{
RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.opacityTexture=null", 3);
}
else
{
RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.opacityTexture.name=" + babylonStandardMaterial.opacityTexture.name, 3);
}
// Specular
for (int i = 0; i < babylonStandardMaterial.specular.Length; i++)
{
RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.specular[" + i + "]=" + babylonStandardMaterial.specular[i], 3);
}
RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.specularPower=" + babylonStandardMaterial.specularPower, 3);
if (babylonStandardMaterial.specularTexture == null)
{
RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.specularTexture=null", 3);
}
else
{
RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.specularTexture.name=" + babylonStandardMaterial.specularTexture.name, 3);
}
// Occlusion
if (babylonStandardMaterial.ambientTexture == null)
{
RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.ambientTexture=null", 3);
}
else
{
RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.ambientTexture.name=" + babylonStandardMaterial.ambientTexture.name, 3);
}
// Emissive
for (int i = 0; i < babylonStandardMaterial.emissive.Length; i++)
{
RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.emissive[" + i + "]=" + babylonStandardMaterial.emissive[i], 3);
}
if (babylonStandardMaterial.emissiveTexture == null)
{
RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.emissiveTexture=null", 3);
}
else
{
RaiseVerbose("GLTFExporter.Material | babylonStandardMaterial.emissiveTexture.name=" + babylonStandardMaterial.emissiveTexture.name, 3);
}
#endregion
// --------------------------------
// --------- gltfMaterial ---------
// --------------------------------
RaiseMessage("GLTFExporter.Material | create gltfMaterial", 2);
var gltfMaterial = new GLTFMaterial
{
name = name
};
gltfMaterial.id = babylonMaterial.id;
gltfMaterial.index = gltf.MaterialsList.Count;
gltf.MaterialsList.Add(gltfMaterial);
// Alpha
string alphaMode;
float? alphaCutoff;
getAlphaMode(babylonStandardMaterial, out alphaMode, out alphaCutoff);
gltfMaterial.alphaMode = alphaMode;
gltfMaterial.alphaCutoff = alphaCutoff;
// DoubleSided
gltfMaterial.doubleSided = !babylonMaterial.backFaceCulling;
// Normal
gltfMaterial.normalTexture = ExportTexture(babylonStandardMaterial.bumpTexture, gltf);
// Occulison
gltfMaterial.occlusionTexture = ExportTexture(babylonStandardMaterial.ambientTexture, gltf);
// Emissive
gltfMaterial.emissiveFactor = babylonStandardMaterial.emissive.Multiply(babylonStandardMaterial.diffuse);
gltfMaterial.emissiveTexture = ExportEmissiveTexture(babylonStandardMaterial, gltf, babylonStandardMaterial.emissive, babylonStandardMaterial.diffuse);
// Constraints
if (gltfMaterial.emissiveTexture != null)
{
gltfMaterial.emissiveFactor = new[] { 1.0f, 1.0f, 1.0f };
}
// --------------------------------
// --- gltfPbrMetallicRoughness ---
// --------------------------------
RaiseMessage("GLTFExporter.Material | create gltfPbrMetallicRoughness", 2);
var gltfPbrMetallicRoughness = new GLTFPBRMetallicRoughness();
gltfMaterial.pbrMetallicRoughness = gltfPbrMetallicRoughness;
// --- Global ---
// Eye Ball correction to limit overall brightness from std to PBR.
// This only impacts the factors.
var correctedDiffuse = new BabylonColor3(babylonStandardMaterial.diffuse).scale(0.5f);
SpecularGlossiness _specularGlossiness = new SpecularGlossiness
{
diffuse = correctedDiffuse,
opacity = babylonMaterial.alpha,
specular = new BabylonColor3(babylonStandardMaterial.specular),
glossiness = babylonStandardMaterial.specularPower / 256
};
MetallicRoughness _metallicRoughness = ConvertToMetallicRoughness(_specularGlossiness, true);
// Base color
gltfPbrMetallicRoughness.baseColorFactor = new float[4]
{
_metallicRoughness.baseColor.r,
_metallicRoughness.baseColor.g,
_metallicRoughness.baseColor.b,
_metallicRoughness.opacity
};
// Metallic roughness
gltfPbrMetallicRoughness.metallicFactor = _metallicRoughness.metallic;
gltfPbrMetallicRoughness.roughnessFactor = _metallicRoughness.roughness;
// --- Textures ---
var babylonTexture = babylonStandardMaterial.diffuseTexture != null ? babylonStandardMaterial.diffuseTexture :
babylonStandardMaterial.specularTexture != null ? babylonStandardMaterial.specularTexture :
babylonStandardMaterial.opacityTexture != null ? babylonStandardMaterial.opacityTexture :
null;
if (babylonTexture != null)
{
//Check if the texture already exist
var _key = SetStandText(babylonStandardMaterial);
if (GetStandTextInfo(_key) != null)
{
var _pairBCMR = GetStandTextInfo(_key);
gltfPbrMetallicRoughness.baseColorTexture = _pairBCMR.baseColor;
gltfPbrMetallicRoughness.metallicRoughnessTexture = _pairBCMR.metallicRoughness;
}
else
{
bool isAlphaInTexture = (isTextureOk(babylonStandardMaterial.diffuseTexture) && babylonStandardMaterial.diffuseTexture.hasAlpha) ||
isTextureOk(babylonStandardMaterial.opacityTexture);
Bitmap baseColorBitmap = null;
Bitmap metallicRoughnessBitmap = null;
GLTFTextureInfo textureInfoBC = new GLTFTextureInfo();
GLTFTextureInfo textureInfoMR = new GLTFTextureInfo();
if (CopyTexturesToOutput)
{
// Diffuse
Bitmap diffuseBitmap = null;
if (babylonStandardMaterial.diffuseTexture != null)
{
diffuseBitmap = LoadTexture(babylonStandardMaterial.diffuseTexture.originalPath);
}
// Specular
Bitmap specularBitmap = null;
if (babylonStandardMaterial.specularTexture != null)
{
specularBitmap = LoadTexture(babylonStandardMaterial.specularTexture.originalPath);
}
// Opacity / Alpha / Transparency
Bitmap opacityBitmap = null;
if ((babylonStandardMaterial.diffuseTexture == null || babylonStandardMaterial.diffuseTexture.hasAlpha == false) && babylonStandardMaterial.opacityTexture != null)
{
opacityBitmap = LoadTexture(babylonStandardMaterial.opacityTexture.originalPath);
}
if (diffuseBitmap != null || specularBitmap != null || opacityBitmap != null)
{
// Retrieve dimensions
int width = 0;
int height = 0;
var haveSameDimensions = _getMinimalBitmapDimensions(out width, out height, diffuseBitmap, specularBitmap, opacityBitmap);
if (!haveSameDimensions)
{
RaiseError("Diffuse, specular and opacity maps should have same dimensions", 2);
}
// Create baseColor+alpha and metallic+roughness maps
baseColorBitmap = new Bitmap(width, height);
metallicRoughnessBitmap = new Bitmap(width, height);
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
SpecularGlossiness specularGlossinessTexture = new SpecularGlossiness
{
diffuse = diffuseBitmap != null ? new BabylonColor3(diffuseBitmap.GetPixel(x, y)) :
_specularGlossiness.diffuse,
opacity = diffuseBitmap != null && babylonStandardMaterial.diffuseTexture.hasAlpha ? diffuseBitmap.GetPixel(x, y).A / 255.0f :
opacityBitmap != null && babylonStandardMaterial.opacityTexture.getAlphaFromRGB ? opacityBitmap.GetPixel(x, y).R / 255.0f :
opacityBitmap != null && babylonStandardMaterial.opacityTexture.getAlphaFromRGB == false?opacityBitmap.GetPixel(x, y).A / 255.0f :
_specularGlossiness.opacity,
specular = specularBitmap != null ? new BabylonColor3(specularBitmap.GetPixel(x, y)) :
_specularGlossiness.specular,
glossiness = babylonStandardMaterial.useGlossinessFromSpecularMapAlpha && specularBitmap != null?specularBitmap.GetPixel(x, y).A / 255.0f :
_specularGlossiness.glossiness
};
var displayPrints = x == width / 2 && y == height / 2;
MetallicRoughness metallicRoughnessTexture = ConvertToMetallicRoughness(specularGlossinessTexture, displayPrints);
Color colorBase = Color.FromArgb(
(int)(metallicRoughnessTexture.opacity * 255),
(int)(metallicRoughnessTexture.baseColor.r * 255),
(int)(metallicRoughnessTexture.baseColor.g * 255),
(int)(metallicRoughnessTexture.baseColor.b * 255)
);
baseColorBitmap.SetPixel(x, y, colorBase);
// The metalness values are sampled from the B channel.
// The roughness values are sampled from the G channel.
// These values are linear. If other channels are present (R or A), they are ignored for metallic-roughness calculations.
Color colorMetallicRoughness = Color.FromArgb(
0,
(int)(metallicRoughnessTexture.roughness * 255),
(int)(metallicRoughnessTexture.metallic * 255)
);
metallicRoughnessBitmap.SetPixel(x, y, colorMetallicRoughness);
}
}
}
}
if (baseColorBitmap != null || babylonTexture.bitmap != null)
{
var baseColorFileName = babylonMaterial.name + "_baseColor" + (isAlphaInTexture ? ".png" : ".jpg");
textureInfoBC = ExportBitmapTexture(gltf, babylonTexture, baseColorBitmap, baseColorFileName);
gltfPbrMetallicRoughness.baseColorTexture = textureInfoBC;
}
if (isTextureOk(babylonStandardMaterial.specularTexture))
{
textureInfoMR = ExportBitmapTexture(gltf, babylonTexture, metallicRoughnessBitmap, babylonMaterial.name + "_metallicRoughness" + ".jpg");
gltfPbrMetallicRoughness.metallicRoughnessTexture = textureInfoMR;
}
//register the texture
AddStandText(_key, textureInfoBC, textureInfoMR);
}
// Constraints
if (gltfPbrMetallicRoughness.baseColorTexture != null)
{
gltfPbrMetallicRoughness.baseColorFactor = new[] { 1.0f, 1.0f, 1.0f, 1.0f };
}
if (gltfPbrMetallicRoughness.metallicRoughnessTexture != null)
{
gltfPbrMetallicRoughness.metallicFactor = 1.0f;
gltfPbrMetallicRoughness.roughnessFactor = 1.0f;
}
}
}
else if (babylonMaterial.GetType() == typeof(BabylonPBRMetallicRoughnessMaterial))
{
var babylonPBRMetallicRoughnessMaterial = babylonMaterial as BabylonPBRMetallicRoughnessMaterial;
// --- prints ---
#region prints
RaiseVerbose("GLTFExporter.Material | babylonMaterial data", 2);
RaiseVerbose("GLTFExporter.Material | babylonMaterial.alpha=" + babylonMaterial.alpha, 3);
RaiseVerbose("GLTFExporter.Material | babylonMaterial.alphaMode=" + babylonMaterial.alphaMode, 3);
RaiseVerbose("GLTFExporter.Material | babylonMaterial.backFaceCulling=" + babylonMaterial.backFaceCulling, 3);
RaiseVerbose("GLTFExporter.Material | babylonMaterial.wireframe=" + babylonMaterial.wireframe, 3);
// Global
RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.maxSimultaneousLights=" + babylonPBRMetallicRoughnessMaterial.maxSimultaneousLights, 3);
RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.disableLighting=" + babylonPBRMetallicRoughnessMaterial.disableLighting, 3);
RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.alphaCutOff=" + babylonPBRMetallicRoughnessMaterial.alphaCutOff, 3);
RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.transparencyMode=" + babylonPBRMetallicRoughnessMaterial.transparencyMode, 3);
RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.doubleSided=" + babylonPBRMetallicRoughnessMaterial.doubleSided, 3);
// Base color
RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.baseColor.Length=" + babylonPBRMetallicRoughnessMaterial.baseColor.Length, 3);
for (int i = 0; i < babylonPBRMetallicRoughnessMaterial.baseColor.Length; i++)
{
RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.baseColor[" + i + "]=" + babylonPBRMetallicRoughnessMaterial.baseColor[i], 3);
}
if (babylonPBRMetallicRoughnessMaterial.baseTexture == null)
{
RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.baseTexture=null", 3);
}
// Metallic+roughness
RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.metallic=" + babylonPBRMetallicRoughnessMaterial.metallic, 3);
RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.roughness=" + babylonPBRMetallicRoughnessMaterial.roughness, 3);
if (babylonPBRMetallicRoughnessMaterial.metallicRoughnessTexture == null)
{
RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.metallicRoughnessTexture=null", 3);
}
// Normal / bump
if (babylonPBRMetallicRoughnessMaterial.normalTexture == null)
{
RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.normalTexture=null", 3);
}
RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.invertNormalMapX=" + babylonPBRMetallicRoughnessMaterial.invertNormalMapX, 3);
RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.invertNormalMapY=" + babylonPBRMetallicRoughnessMaterial.invertNormalMapY, 3);
// Emissive
for (int i = 0; i < babylonPBRMetallicRoughnessMaterial.emissive.Length; i++)
{
RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.emissiveColor[" + i + "]=" + babylonPBRMetallicRoughnessMaterial.emissive[i], 3);
}
if (babylonPBRMetallicRoughnessMaterial.emissiveTexture == null)
{
RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.emissiveTexture=null", 3);
}
// Ambient occlusion
RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.occlusionStrength=" + babylonPBRMetallicRoughnessMaterial.occlusionStrength, 3);
if (babylonPBRMetallicRoughnessMaterial.occlusionTexture == null)
{
RaiseVerbose("GLTFExporter.Material | babylonPBRMetallicRoughnessMaterial.occlusionTexture=null", 3);
}
#endregion
// --------------------------------
// --------- gltfMaterial ---------
// --------------------------------
RaiseMessage("GLTFExporter.Material | create gltfMaterial", 2);
var gltfMaterial = new GLTFMaterial
{
name = name
};
gltfMaterial.id = babylonMaterial.id;
gltfMaterial.index = gltf.MaterialsList.Count;
gltf.MaterialsList.Add(gltfMaterial);
// Alpha
string alphaMode;
float? alphaCutoff;
getAlphaMode(babylonPBRMetallicRoughnessMaterial, out alphaMode, out alphaCutoff);
gltfMaterial.alphaMode = alphaMode;
gltfMaterial.alphaCutoff = alphaCutoff;
// DoubleSided
gltfMaterial.doubleSided = babylonPBRMetallicRoughnessMaterial.doubleSided;
// Normal
gltfMaterial.normalTexture = ExportTexture(babylonPBRMetallicRoughnessMaterial.normalTexture, gltf);
// Occlusion
if (babylonPBRMetallicRoughnessMaterial.occlusionTexture != null)
{
if (babylonPBRMetallicRoughnessMaterial.occlusionTexture.bitmap != null)
{
// ORM texture has been merged manually by the exporter
// Occlusion is defined as well as metallic and/or roughness
RaiseVerbose("Occlusion is defined as well as metallic and/or roughness", 2);
gltfMaterial.occlusionTexture = ExportBitmapTexture(gltf, babylonPBRMetallicRoughnessMaterial.occlusionTexture);
}
else
{
// ORM texture was already merged or only occlusion is defined
RaiseVerbose("ORM texture was already merged or only occlusion is defined", 2);
gltfMaterial.occlusionTexture = ExportTexture(babylonPBRMetallicRoughnessMaterial.occlusionTexture, gltf);
}
}
// Emissive
gltfMaterial.emissiveFactor = babylonPBRMetallicRoughnessMaterial.emissive;
gltfMaterial.emissiveTexture = ExportTexture(babylonPBRMetallicRoughnessMaterial.emissiveTexture, gltf);
// --------------------------------
// --- gltfPbrMetallicRoughness ---
// --------------------------------
RaiseMessage("GLTFExporter.Material | create gltfPbrMetallicRoughness", 2);
var gltfPbrMetallicRoughness = new GLTFPBRMetallicRoughness();
gltfMaterial.pbrMetallicRoughness = gltfPbrMetallicRoughness;
// --- Global ---
// Base color
gltfPbrMetallicRoughness.baseColorFactor = new float[4]
{
babylonPBRMetallicRoughnessMaterial.baseColor[0],
babylonPBRMetallicRoughnessMaterial.baseColor[1],
babylonPBRMetallicRoughnessMaterial.baseColor[2],
babylonPBRMetallicRoughnessMaterial.alpha
};
if (babylonPBRMetallicRoughnessMaterial.baseTexture != null)
{
if (babylonPBRMetallicRoughnessMaterial.baseTexture.bitmap != null)
{
// Base color & Alpha texture has been merged manually by the exporter
// Write bitmap file
gltfPbrMetallicRoughness.baseColorTexture = ExportBitmapTexture(gltf, babylonPBRMetallicRoughnessMaterial.baseTexture);
}
else
{
// Base color & Alpha texture was already merged
// Copy file
gltfPbrMetallicRoughness.baseColorTexture = ExportTexture(babylonPBRMetallicRoughnessMaterial.baseTexture, gltf);
}
}
// Metallic roughness
gltfPbrMetallicRoughness.metallicFactor = babylonPBRMetallicRoughnessMaterial.metallic;
gltfPbrMetallicRoughness.roughnessFactor = babylonPBRMetallicRoughnessMaterial.roughness;
if (babylonPBRMetallicRoughnessMaterial.metallicRoughnessTexture != null)
{
if (babylonPBRMetallicRoughnessMaterial.metallicRoughnessTexture == babylonPBRMetallicRoughnessMaterial.occlusionTexture)
{
// Occlusion is defined as well as metallic and/or roughness
// Use same texture
RaiseVerbose("Occlusion is defined as well as metallic and/or roughness", 2);
gltfPbrMetallicRoughness.metallicRoughnessTexture = gltfMaterial.occlusionTexture;
}
else
{
// Occlusion is not defined, only metallic and/or roughness
RaiseVerbose("Occlusion is not defined, only metallic and/or roughness", 2);
if (babylonPBRMetallicRoughnessMaterial.metallicRoughnessTexture.bitmap != null)
{
// Metallic & roughness texture has been merged manually by the exporter
// Write bitmap file
RaiseVerbose("Metallic & roughness texture has been merged manually by the exporter", 2);
gltfPbrMetallicRoughness.metallicRoughnessTexture = ExportBitmapTexture(gltf, babylonPBRMetallicRoughnessMaterial.metallicRoughnessTexture);
}
else
{
// Metallic & roughness texture was already merged
// Copy file
RaiseVerbose("Metallic & roughness texture was already merged", 2);
gltfPbrMetallicRoughness.metallicRoughnessTexture = ExportTexture(babylonPBRMetallicRoughnessMaterial.metallicRoughnessTexture, gltf);
}
}
}
}
else
{
RaiseWarning("GLTFExporter.Material | Unsupported material type: " + babylonMaterial.GetType(), 2);
}
}
private static int[] DeconstructMaterials(PokemonModel pokemonModel, GLTFRoot gltfRoot)
{
var materials = new int[pokemonModel.MaterialsLength];
for (var i = 0; i < pokemonModel.MaterialsLength; ++i)
{
var material = pokemonModel.Materials(i).GetValueOrDefault();
var gltfMaterial = new GLTFMaterial
{
PbrMetallicRoughness = new GLTFPBRMetallicRoughness(),
Name = material.Name,
AlphaMode = GLTFAlphaMode.BLEND
};
for (var j = 0; j < material.TexturesLength; ++j)
{
var texture = material.Textures(j).GetValueOrDefault();
var textureName = $"{pokemonModel.Textures(texture.Id)}.png";
var mapping = texture.Mapping.GetValueOrDefault();
var textureInfo = new GLTFTextureInfo
{
Index = FindOrCreateTexture(gltfRoot, textureName, mapping)
};
switch (texture.Channel)
{
case "Col0Tex":
gltfMaterial.PbrMetallicRoughness.BaseColorTexture = textureInfo;
break;
case "EmissionMaskTex":
gltfMaterial.EmissiveTexture = textureInfo;
gltfMaterial.EmissiveFactor = new Vector3(1, 1, 1);
;
break;
case "AmbientTex":
gltfMaterial.OcclusionTexture = textureInfo;
break;
case "NormalMapTex":
gltfMaterial.NormalTexture = textureInfo;
break;
}
}
var colorUVScale = new Vector2(1, 1);
var colorUVTransation = new Vector2();
var normalUVScale = new Vector2();
for (var j = 0; j < material.ValuesLength; ++j)
{
var value = material.Values(j).GetValueOrDefault();
if (string.IsNullOrWhiteSpace(value.Name))
{
continue;
}
switch (value.Name)
{
case "ColorUVScaleU":
colorUVScale.X = value.Value;
break;
case "ColorUVScaleV":
colorUVScale.Y = value.Value;
break;
case "ColorUVTranslateU":
colorUVTransation.X += value.Value;
break;
case "ColorUVTranslateV":
colorUVTransation.Y += value.Value;
break;
case "ColorBaseU":
colorUVTransation.X += value.Value;
break;
case "ColorBaseY":
colorUVTransation.Y += value.Value;
break;
case "NormalMapUVScaleU":
normalUVScale.X += value.Value;
break;
case "NormalMapUVScaleV":
normalUVScale.Y += value.Value;
break;
}
}
var colorTransform = new KHRTextureTransform
{
Offset = colorUVTransation,
Scale = colorUVScale
};
var normalTransform = new KHRTextureTransform
{
Offset = normalUVScale
};
//colorTransform.Insert(gltfMaterial.OcclusionTexture, gltfRoot);
colorTransform.Insert(gltfMaterial.PbrMetallicRoughness.MetallicRoughnessTexture, gltfRoot);
//colorTransform.Insert(gltfMaterial.EmissiveTexture, gltfRoot);
normalTransform.Insert(gltfMaterial.NormalTexture, gltfRoot);
materials[i] = gltfRoot.Materials.Count;
gltfRoot.Materials.Add(gltfMaterial);
}
return(materials);
}
private GLTFTextureInfo ExportTexture(BabylonTexture babylonTexture, GLTF gltf)
{
if (babylonTexture == null)
{
return(null);
}
RaiseMessage("GLTFExporter.Texture | ExportTexture babylonTexture.name=" + babylonTexture.name, 1);
// --------------------------
// -------- Sampler ---------
// --------------------------
RaiseMessage("GLTFExporter.Texture | create sampler", 1);
GLTFSampler gltfSampler = new GLTFSampler();
gltfSampler.index = gltf.SamplersList.Count;
gltf.SamplersList.Add(gltfSampler);
// --- Retreive info from babylon texture ---
// Mag and min filters
GLTFSampler.TextureMagFilter?magFilter;
GLTFSampler.TextureMinFilter?minFilter;
getSamplingParameters(babylonTexture.samplingMode, out magFilter, out minFilter);
gltfSampler.magFilter = magFilter;
gltfSampler.minFilter = minFilter;
// WrapS and wrapT
gltfSampler.wrapS = getWrapMode(babylonTexture.wrapU);
gltfSampler.wrapT = getWrapMode(babylonTexture.wrapV);
// --------------------------
// --------- Image ----------
// --------------------------
RaiseMessage("GLTFExporter.Texture | create image", 1);
GLTFImage gltfImage = new GLTFImage
{
uri = babylonTexture.name
};
gltfImage.index = gltf.ImagesList.Count;
gltf.ImagesList.Add(gltfImage);
// --------------------------
// -------- Texture ---------
// --------------------------
RaiseMessage("GLTFExporter.Texture | create texture", 1);
var gltfTexture = new GLTFTexture
{
name = babylonTexture.name,
sampler = gltfSampler.index,
source = gltfImage.index
};
gltfTexture.index = gltf.TexturesList.Count;
gltf.TexturesList.Add(gltfTexture);
// --------------------------
// ------ TextureInfo -------
// --------------------------
var gltfTextureInfo = new GLTFTextureInfo
{
index = gltfTexture.index
};
// TODO - Animations
//// Copy image to output
//var absolutePath = texture.Map.FullFilePath;
//try
//{
// if (File.Exists(absolutePath))
// {
// if (CopyTexturesToOutput)
// {
// RaiseMessage("GLTFExporter.Texture | copy image src path = "+ absolutePath + " and dest path = "+ Path.Combine(gltf.OutputPath, gltfTexture.name));
// File.Copy(absolutePath, Path.Combine(gltf.OutputPath, gltfTexture.name), true);
// }
// }
// else
// {
// RaiseWarning(string.Format("Texture {0} not found.", gltfTexture.name), 2);
// }
//}
//catch
//{
// // silently fails
//}
return(gltfTextureInfo);
}
