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Merge pull request #1692 from awefers/issue_1691 

glTF 2.0: Assign default material to meshes with no material reference.
pull/1696/head
Kim Kulling 2018-01-11 00:53:54 +01:00 committed by GitHub
parent de8cc09a09 45d5f2eec8
commit 7d7d7cd9ec
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 66 additions and 53 deletions
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119
code/glTF2Importer.cpp
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@ -211,63 +211,72 @@ inline void SetMaterialTextureProperty(std::vector<int>& embeddedTexIdxs, Asset&
} }
} }
static aiMaterial* ImportMaterial(std::vector<int>& embeddedTexIdxs, Asset& r, Material& mat)
{
aiMaterial* aimat = new aiMaterial();
if (!mat.name.empty()) {
aiString str(mat.name);
aimat->AddProperty(&str, AI_MATKEY_NAME);
}
SetMaterialColorProperty(r, mat.pbrMetallicRoughness.baseColorFactor, aimat, AI_MATKEY_COLOR_DIFFUSE);
SetMaterialColorProperty(r, mat.pbrMetallicRoughness.baseColorFactor, aimat, AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_BASE_COLOR_FACTOR);
SetMaterialTextureProperty(embeddedTexIdxs, r, mat.pbrMetallicRoughness.baseColorTexture, aimat, aiTextureType_DIFFUSE);
SetMaterialTextureProperty(embeddedTexIdxs, r, mat.pbrMetallicRoughness.baseColorTexture, aimat, AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_BASE_COLOR_TEXTURE);
SetMaterialTextureProperty(embeddedTexIdxs, r, mat.pbrMetallicRoughness.metallicRoughnessTexture, aimat, AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_METALLICROUGHNESS_TEXTURE);
aimat->AddProperty(&mat.pbrMetallicRoughness.metallicFactor, 1, AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_METALLIC_FACTOR);
aimat->AddProperty(&mat.pbrMetallicRoughness.roughnessFactor, 1, AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_ROUGHNESS_FACTOR);
float roughnessAsShininess = (1 - mat.pbrMetallicRoughness.roughnessFactor) * 1000;
aimat->AddProperty(&roughnessAsShininess, 1, AI_MATKEY_SHININESS);
SetMaterialTextureProperty(embeddedTexIdxs, r, mat.normalTexture, aimat, aiTextureType_NORMALS);
SetMaterialTextureProperty(embeddedTexIdxs, r, mat.occlusionTexture, aimat, aiTextureType_LIGHTMAP);
SetMaterialTextureProperty(embeddedTexIdxs, r, mat.emissiveTexture, aimat, aiTextureType_EMISSIVE);
SetMaterialColorProperty(r, mat.emissiveFactor, aimat, AI_MATKEY_COLOR_EMISSIVE);
aimat->AddProperty(&mat.doubleSided, 1, AI_MATKEY_TWOSIDED);
aiString alphaMode(mat.alphaMode);
aimat->AddProperty(&alphaMode, AI_MATKEY_GLTF_ALPHAMODE);
aimat->AddProperty(&mat.alphaCutoff, 1, AI_MATKEY_GLTF_ALPHACUTOFF);
//pbrSpecularGlossiness
if (mat.pbrSpecularGlossiness.isPresent) {
PbrSpecularGlossiness &pbrSG = mat.pbrSpecularGlossiness.value;
aimat->AddProperty(&mat.pbrSpecularGlossiness.isPresent, 1, AI_MATKEY_GLTF_PBRSPECULARGLOSSINESS);
SetMaterialColorProperty(r, pbrSG.diffuseFactor, aimat, AI_MATKEY_COLOR_DIFFUSE);
SetMaterialColorProperty(r, pbrSG.specularFactor, aimat, AI_MATKEY_COLOR_SPECULAR);
float glossinessAsShininess = pbrSG.glossinessFactor * 1000.0f;
aimat->AddProperty(&glossinessAsShininess, 1, AI_MATKEY_SHININESS);
aimat->AddProperty(&pbrSG.glossinessFactor, 1, AI_MATKEY_GLTF_PBRSPECULARGLOSSINESS_GLOSSINESS_FACTOR);
SetMaterialTextureProperty(embeddedTexIdxs, r, pbrSG.diffuseTexture, aimat, aiTextureType_DIFFUSE);
SetMaterialTextureProperty(embeddedTexIdxs, r, pbrSG.specularGlossinessTexture, aimat, aiTextureType_SPECULAR);
}
return aimat;
}
void glTF2Importer::ImportMaterials(glTF2::Asset& r) void glTF2Importer::ImportMaterials(glTF2::Asset& r)
{ {
mScene->mNumMaterials = unsigned(r.materials.Size()); const unsigned int numImportedMaterials = unsigned(r.materials.Size());
Material defaultMaterial;
mScene->mNumMaterials = numImportedMaterials + 1;
mScene->mMaterials = new aiMaterial*[mScene->mNumMaterials]; mScene->mMaterials = new aiMaterial*[mScene->mNumMaterials];
mScene->mMaterials[numImportedMaterials] = ImportMaterial(embeddedTexIdxs, r, defaultMaterial);
for (unsigned int i = 0; i < mScene->mNumMaterials; ++i) { for (unsigned int i = 0; i < numImportedMaterials; ++i) {
aiMaterial* aimat = mScene->mMaterials[i] = new aiMaterial(); mScene->mMaterials[i] = ImportMaterial(embeddedTexIdxs, r, r.materials[i]);
Material& mat = r.materials[i];
if (!mat.name.empty()) {
aiString str(mat.name);
aimat->AddProperty(&str, AI_MATKEY_NAME);
}
SetMaterialColorProperty(r, mat.pbrMetallicRoughness.baseColorFactor, aimat, AI_MATKEY_COLOR_DIFFUSE);
SetMaterialColorProperty(r, mat.pbrMetallicRoughness.baseColorFactor, aimat, AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_BASE_COLOR_FACTOR);
SetMaterialTextureProperty(embeddedTexIdxs, r, mat.pbrMetallicRoughness.baseColorTexture, aimat, aiTextureType_DIFFUSE);
SetMaterialTextureProperty(embeddedTexIdxs, r, mat.pbrMetallicRoughness.baseColorTexture, aimat, AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_BASE_COLOR_TEXTURE);
SetMaterialTextureProperty(embeddedTexIdxs, r, mat.pbrMetallicRoughness.metallicRoughnessTexture, aimat, AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_METALLICROUGHNESS_TEXTURE);
aimat->AddProperty(&mat.pbrMetallicRoughness.metallicFactor, 1, AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_METALLIC_FACTOR);
aimat->AddProperty(&mat.pbrMetallicRoughness.roughnessFactor, 1, AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_ROUGHNESS_FACTOR);
float roughnessAsShininess = (1 - mat.pbrMetallicRoughness.roughnessFactor) * 1000;
aimat->AddProperty(&roughnessAsShininess, 1, AI_MATKEY_SHININESS);
SetMaterialTextureProperty(embeddedTexIdxs, r, mat.normalTexture, aimat, aiTextureType_NORMALS);
SetMaterialTextureProperty(embeddedTexIdxs, r, mat.occlusionTexture, aimat, aiTextureType_LIGHTMAP);
SetMaterialTextureProperty(embeddedTexIdxs, r, mat.emissiveTexture, aimat, aiTextureType_EMISSIVE);
SetMaterialColorProperty(r, mat.emissiveFactor, aimat, AI_MATKEY_COLOR_EMISSIVE);
aimat->AddProperty(&mat.doubleSided, 1, AI_MATKEY_TWOSIDED);
aiString alphaMode(mat.alphaMode);
aimat->AddProperty(&alphaMode, AI_MATKEY_GLTF_ALPHAMODE);
aimat->AddProperty(&mat.alphaCutoff, 1, AI_MATKEY_GLTF_ALPHACUTOFF);
//pbrSpecularGlossiness
if (mat.pbrSpecularGlossiness.isPresent) {
PbrSpecularGlossiness &pbrSG = mat.pbrSpecularGlossiness.value;
aimat->AddProperty(&mat.pbrSpecularGlossiness.isPresent, 1, AI_MATKEY_GLTF_PBRSPECULARGLOSSINESS);
SetMaterialColorProperty(r, pbrSG.diffuseFactor, aimat, AI_MATKEY_COLOR_DIFFUSE);
SetMaterialColorProperty(r, pbrSG.specularFactor, aimat, AI_MATKEY_COLOR_SPECULAR);
float glossinessAsShininess = pbrSG.glossinessFactor * 1000.0f;
aimat->AddProperty(&glossinessAsShininess, 1, AI_MATKEY_SHININESS);
aimat->AddProperty(&pbrSG.glossinessFactor, 1, AI_MATKEY_GLTF_PBRSPECULARGLOSSINESS_GLOSSINESS_FACTOR);
SetMaterialTextureProperty(embeddedTexIdxs, r, pbrSG.diffuseTexture, aimat, aiTextureType_DIFFUSE);
SetMaterialTextureProperty(embeddedTexIdxs, r, pbrSG.specularGlossinessTexture, aimat, aiTextureType_SPECULAR);
}
} }
} }
@ -479,6 +488,10 @@ void glTF2Importer::ImportMeshes(glTF2::Asset& r)
if (prim.material) { if (prim.material) {
aim->mMaterialIndex = prim.material.GetIndex(); aim->mMaterialIndex = prim.material.GetIndex();
} }
else {
aim->mMaterialIndex = mScene->mNumMaterials - 1;
}
} }
} }