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Merge branch 'master' into patch-1

pull/3954/head
Kim Kulling 2021-06-23 01:08:40 +02:00 committed by GitHub
parent d699e7b56e 1faedc136a
commit c447fc6892
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GPG Key ID: 4AEE18F83AFDEB23
17 changed files with 2175 additions and 202 deletions
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4
code/AssetLib/FBX/FBXExporter.h
View File

@ -64,10 +64,8 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
struct aiScene;
struct aiNode;
struct aiLight;
//struct aiMaterial;
namespace Assimp
{
namespace Assimp {
class IOSystem;
class IOStream;
class ExportProperties;

2
code/AssetLib/IFC/IFCBoolean.cpp
View File

@ -513,7 +513,7 @@ void ProcessPolygonalBoundedBooleanHalfSpaceDifference(const Schema_2x3::IfcPoly
}
// we got a list of in-out-combinations of intersections. That should be an even number of intersections, or
// we're fucked.
// we are facing a non-recoverable error.
if ((intersections.size() & 1) != 0) {
IFCImporter::LogWarn("Odd number of intersections, can't work with that. Omitting half space boundary check.");
continue;

253
code/AssetLib/glTF2/glTF2Exporter.cpp
View File

@ -436,11 +436,11 @@ inline void SetSamplerWrap(SamplerWrap& wrap, aiTextureMapMode map)
};
}
void glTF2Exporter::GetTexSampler(const aiMaterial* mat, Ref<Texture> texture, aiTextureType tt, unsigned int slot)
void glTF2Exporter::GetTexSampler(const aiMaterial& mat, Ref<Texture> texture, aiTextureType tt, unsigned int slot)
{
aiString aId;
std::string id;
if (aiGetMaterialString(mat, AI_MATKEY_GLTF_MAPPINGID(tt, slot), &aId) == AI_SUCCESS) {
if (aiGetMaterialString(&mat, AI_MATKEY_GLTF_MAPPINGID(tt, slot), &aId) == AI_SUCCESS) {
id = aId.C_Str();
}
@ -455,49 +455,52 @@ void glTF2Exporter::GetTexSampler(const aiMaterial* mat, Ref<Texture> texture, a
SamplerMagFilter filterMag;
SamplerMinFilter filterMin;
if (aiGetMaterialInteger(mat, AI_MATKEY_MAPPINGMODE_U(tt, slot), (int*)&mapU) == AI_SUCCESS) {
if (aiGetMaterialInteger(&mat, AI_MATKEY_MAPPINGMODE_U(tt, slot), (int*)&mapU) == AI_SUCCESS) {
SetSamplerWrap(texture->sampler->wrapS, mapU);
}
if (aiGetMaterialInteger(mat, AI_MATKEY_MAPPINGMODE_V(tt, slot), (int*)&mapV) == AI_SUCCESS) {
if (aiGetMaterialInteger(&mat, AI_MATKEY_MAPPINGMODE_V(tt, slot), (int*)&mapV) == AI_SUCCESS) {
SetSamplerWrap(texture->sampler->wrapT, mapV);
}
if (aiGetMaterialInteger(mat, AI_MATKEY_GLTF_MAPPINGFILTER_MAG(tt, slot), (int*)&filterMag) == AI_SUCCESS) {
if (aiGetMaterialInteger(&mat, AI_MATKEY_GLTF_MAPPINGFILTER_MAG(tt, slot), (int*)&filterMag) == AI_SUCCESS) {
texture->sampler->magFilter = filterMag;
}
if (aiGetMaterialInteger(mat, AI_MATKEY_GLTF_MAPPINGFILTER_MIN(tt, slot), (int*)&filterMin) == AI_SUCCESS) {
if (aiGetMaterialInteger(&mat, AI_MATKEY_GLTF_MAPPINGFILTER_MIN(tt, slot), (int*)&filterMin) == AI_SUCCESS) {
texture->sampler->minFilter = filterMin;
}
aiString name;
if (aiGetMaterialString(mat, AI_MATKEY_GLTF_MAPPINGNAME(tt, slot), &name) == AI_SUCCESS) {
if (aiGetMaterialString(&mat, AI_MATKEY_GLTF_MAPPINGNAME(tt, slot), &name) == AI_SUCCESS) {
texture->sampler->name = name.C_Str();
}
}
}
void glTF2Exporter::GetMatTexProp(const aiMaterial* mat, unsigned int& prop, const char* propName, aiTextureType tt, unsigned int slot)
void glTF2Exporter::GetMatTexProp(const aiMaterial& mat, unsigned int& prop, const char* propName, aiTextureType tt, unsigned int slot)
{
std::string textureKey = std::string(_AI_MATKEY_TEXTURE_BASE) + "." + propName;
mat->Get(textureKey.c_str(), tt, slot, prop);
mat.Get(textureKey.c_str(), tt, slot, prop);
}
void glTF2Exporter::GetMatTexProp(const aiMaterial* mat, float& prop, const char* propName, aiTextureType tt, unsigned int slot)
void glTF2Exporter::GetMatTexProp(const aiMaterial& mat, float& prop, const char* propName, aiTextureType tt, unsigned int slot)
{
std::string textureKey = std::string(_AI_MATKEY_TEXTURE_BASE) + "." + propName;
mat->Get(textureKey.c_str(), tt, slot, prop);
mat.Get(textureKey.c_str(), tt, slot, prop);
}
void glTF2Exporter::GetMatTex(const aiMaterial* mat, Ref<Texture>& texture, aiTextureType tt, unsigned int slot = 0)
void glTF2Exporter::GetMatTex(const aiMaterial& mat, Ref<Texture>& texture, unsigned int &texCoord, aiTextureType tt, unsigned int slot = 0)
{
if (mat->GetTextureCount(tt) > 0) {
if (mat.GetTextureCount(tt) > 0) {
aiString tex;
if (mat->Get(AI_MATKEY_TEXTURE(tt, slot), tex) == AI_SUCCESS) {
// Read texcoord (UV map index)
mat.Get(AI_MATKEY_UVWSRC(tt, slot), texCoord);
if (mat.Get(AI_MATKEY_TEXTURE(tt, slot), tex) == AI_SUCCESS) {
std::string path = tex.C_Str();
if (path.size() > 0) {
@ -567,45 +570,45 @@ void glTF2Exporter::GetMatTex(const aiMaterial* mat, Ref<Texture>& texture, aiTe
}
}
void glTF2Exporter::GetMatTex(const aiMaterial* mat, TextureInfo& prop, aiTextureType tt, unsigned int slot = 0)
void glTF2Exporter::GetMatTex(const aiMaterial& mat, TextureInfo& prop, aiTextureType tt, unsigned int slot = 0)
{
Ref<Texture>& texture = prop.texture;
GetMatTex(mat, texture, tt, slot);
GetMatTex(mat, texture, prop.texCoord, tt, slot);
if (texture) {
GetMatTexProp(mat, prop.texCoord, "texCoord", tt, slot);
}
//if (texture) {
// GetMatTexProp(mat, prop.texCoord, "texCoord", tt, slot);
//}
}
void glTF2Exporter::GetMatTex(const aiMaterial* mat, NormalTextureInfo& prop, aiTextureType tt, unsigned int slot = 0)
void glTF2Exporter::GetMatTex(const aiMaterial& mat, NormalTextureInfo& prop, aiTextureType tt, unsigned int slot = 0)
{
Ref<Texture>& texture = prop.texture;
GetMatTex(mat, texture, tt, slot);
GetMatTex(mat, texture, prop.texCoord, tt, slot);
if (texture) {
GetMatTexProp(mat, prop.texCoord, "texCoord", tt, slot);
//GetMatTexProp(mat, prop.texCoord, "texCoord", tt, slot);
GetMatTexProp(mat, prop.scale, "scale", tt, slot);
}
}
void glTF2Exporter::GetMatTex(const aiMaterial* mat, OcclusionTextureInfo& prop, aiTextureType tt, unsigned int slot = 0)
void glTF2Exporter::GetMatTex(const aiMaterial& mat, OcclusionTextureInfo& prop, aiTextureType tt, unsigned int slot = 0)
{
Ref<Texture>& texture = prop.texture;
GetMatTex(mat, texture, tt, slot);
GetMatTex(mat, texture, prop.texCoord, tt, slot);
if (texture) {
GetMatTexProp(mat, prop.texCoord, "texCoord", tt, slot);
//GetMatTexProp(mat, prop.texCoord, "texCoord", tt, slot);
GetMatTexProp(mat, prop.strength, "strength", tt, slot);
}
}
aiReturn glTF2Exporter::GetMatColor(const aiMaterial* mat, vec4& prop, const char* propName, int type, int idx)
aiReturn glTF2Exporter::GetMatColor(const aiMaterial& mat, vec4& prop, const char* propName, int type, int idx) const
{
aiColor4D col;
aiReturn result = mat->Get(propName, type, idx, col);
aiReturn result = mat.Get(propName, type, idx, col);
if (result == AI_SUCCESS) {
prop[0] = col.r; prop[1] = col.g; prop[2] = col.b; prop[3] = col.a;
@ -614,37 +617,116 @@ aiReturn glTF2Exporter::GetMatColor(const aiMaterial* mat, vec4& prop, const cha
return result;
}
aiReturn glTF2Exporter::GetMatColor(const aiMaterial* mat, vec3& prop, const char* propName, int type, int idx)
aiReturn glTF2Exporter::GetMatColor(const aiMaterial& mat, vec3& prop, const char* propName, int type, int idx) const
{
aiColor3D col;
aiReturn result = mat->Get(propName, type, idx, col);
aiReturn result = mat.Get(propName, type, idx, col);
if (result == AI_SUCCESS) {
prop[0] = col.r; prop[1] = col.g; prop[2] = col.b;
prop[0] = col.r;
prop[1] = col.g;
prop[2] = col.b;
}
return result;
}
bool glTF2Exporter::GetMatSpecGloss(const aiMaterial &mat, glTF2::PbrSpecularGlossiness &pbrSG) {
bool result = false;
// If has Glossiness, a Specular Color or Specular Texture, use the KHR_materials_pbrSpecularGlossiness extension
// NOTE: This extension is being considered for deprecation (Dec 2020), may be replaced by KHR_material_specular
if (mat.Get(AI_MATKEY_GLOSSINESS_FACTOR, pbrSG.glossinessFactor) == AI_SUCCESS) {
result = true;
} else {
// Don't have explicit glossiness, convert from pbr roughness or legacy shininess
float shininess;
if (mat.Get(AI_MATKEY_ROUGHNESS_FACTOR, shininess) == AI_SUCCESS) {
pbrSG.glossinessFactor = 1.0f - shininess; // Extension defines this way
} else if (mat.Get(AI_MATKEY_SHININESS, shininess) == AI_SUCCESS) {
pbrSG.glossinessFactor = shininess / 1000;
}
}
if (GetMatColor(mat, pbrSG.specularFactor, AI_MATKEY_COLOR_SPECULAR) == AI_SUCCESS) {
result = true;
}
// Add any appropriate textures
GetMatTex(mat, pbrSG.specularGlossinessTexture, aiTextureType_SPECULAR);
result = result || pbrSG.specularGlossinessTexture.texture;
if (result) {
// Likely to always have diffuse
GetMatTex(mat, pbrSG.diffuseTexture, aiTextureType_DIFFUSE);
GetMatColor(mat, pbrSG.diffuseFactor, AI_MATKEY_COLOR_DIFFUSE);
}
return result;
}
bool glTF2Exporter::GetMatSheen(const aiMaterial &mat, glTF2::MaterialSheen &sheen) {
// Return true if got any valid Sheen properties or textures
if (GetMatColor(mat, sheen.sheenColorFactor, AI_MATKEY_SHEEN_COLOR_FACTOR) != aiReturn_SUCCESS)
return false;
// Default Sheen color factor {0,0,0} disables Sheen, so do not export
if (sheen.sheenColorFactor == defaultSheenFactor)
return false;
mat.Get(AI_MATKEY_SHEEN_ROUGHNESS_FACTOR, sheen.sheenRoughnessFactor);
GetMatTex(mat, sheen.sheenColorTexture, AI_MATKEY_SHEEN_COLOR_TEXTURE);
GetMatTex(mat, sheen.sheenRoughnessTexture, AI_MATKEY_SHEEN_ROUGHNESS_TEXTURE);
return true;
}
bool glTF2Exporter::GetMatClearcoat(const aiMaterial &mat, glTF2::MaterialClearcoat &clearcoat) {
if (mat.Get(AI_MATKEY_CLEARCOAT_FACTOR, clearcoat.clearcoatFactor) != aiReturn_SUCCESS) {
return false;
}
// Clearcoat factor of zero disables Clearcoat, so do not export
if (clearcoat.clearcoatFactor == 0.0f)
return false;
mat.Get(AI_MATKEY_CLEARCOAT_ROUGHNESS_FACTOR, clearcoat.clearcoatRoughnessFactor);
GetMatTex(mat, clearcoat.clearcoatTexture, AI_MATKEY_CLEARCOAT_TEXTURE);
GetMatTex(mat, clearcoat.clearcoatRoughnessTexture, AI_MATKEY_CLEARCOAT_ROUGHNESS_TEXTURE);
GetMatTex(mat, clearcoat.clearcoatNormalTexture, AI_MATKEY_CLEARCOAT_NORMAL_TEXTURE);
return true;
}
bool glTF2Exporter::GetMatTransmission(const aiMaterial &mat, glTF2::MaterialTransmission &transmission) {
bool result = mat.Get(AI_MATKEY_TRANSMISSION_FACTOR, transmission.transmissionFactor) == aiReturn_SUCCESS;
GetMatTex(mat, transmission.transmissionTexture, AI_MATKEY_TRANSMISSION_TEXTURE);
return result || transmission.transmissionTexture.texture;
}
void glTF2Exporter::ExportMaterials()
{
aiString aiName;
for (unsigned int i = 0; i < mScene->mNumMaterials; ++i) {
const aiMaterial* mat = mScene->mMaterials[i];
ai_assert(mScene->mMaterials[i] != nullptr);
const aiMaterial & mat = *(mScene->mMaterials[i]);
std::string id = "material_" + ai_to_string(i);
Ref<Material> m = mAsset->materials.Create(id);
std::string name;
if (mat->Get(AI_MATKEY_NAME, aiName) == AI_SUCCESS) {
if (mat.Get(AI_MATKEY_NAME, aiName) == AI_SUCCESS) {
name = aiName.C_Str();
}
name = mAsset->FindUniqueID(name, "material");
m->name = name;
GetMatTex(mat, m->pbrMetallicRoughness.baseColorTexture, AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_BASE_COLOR_TEXTURE);
GetMatTex(mat, m->pbrMetallicRoughness.baseColorTexture, aiTextureType_BASE_COLOR);
if (!m->pbrMetallicRoughness.baseColorTexture.texture) {
//if there wasn't a baseColorTexture defined in the source, fallback to any diffuse texture
@ -653,26 +735,26 @@ void glTF2Exporter::ExportMaterials()
GetMatTex(mat, m->pbrMetallicRoughness.metallicRoughnessTexture, AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_METALLICROUGHNESS_TEXTURE);
if (GetMatColor(mat, m->pbrMetallicRoughness.baseColorFactor, AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_BASE_COLOR_FACTOR) != AI_SUCCESS) {
if (GetMatColor(mat, m->pbrMetallicRoughness.baseColorFactor, AI_MATKEY_BASE_COLOR) != AI_SUCCESS) {
// if baseColorFactor wasn't defined, then the source is likely not a metallic roughness material.
//a fallback to any diffuse color should be used instead
GetMatColor(mat, m->pbrMetallicRoughness.baseColorFactor, AI_MATKEY_COLOR_DIFFUSE);
}
if (mat->Get(AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_METALLIC_FACTOR, m->pbrMetallicRoughness.metallicFactor) != AI_SUCCESS) {
if (mat.Get(AI_MATKEY_METALLIC_FACTOR, m->pbrMetallicRoughness.metallicFactor) != AI_SUCCESS) {
//if metallicFactor wasn't defined, then the source is likely not a PBR file, and the metallicFactor should be 0
m->pbrMetallicRoughness.metallicFactor = 0;
}
// get roughness if source is gltf2 file
if (mat->Get(AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_ROUGHNESS_FACTOR, m->pbrMetallicRoughness.roughnessFactor) != AI_SUCCESS) {
if (mat.Get(AI_MATKEY_ROUGHNESS_FACTOR, m->pbrMetallicRoughness.roughnessFactor) != AI_SUCCESS) {
// otherwise, try to derive and convert from specular + shininess values
aiColor4D specularColor;
ai_real shininess;
if (
mat->Get(AI_MATKEY_COLOR_SPECULAR, specularColor) == AI_SUCCESS &&
mat->Get(AI_MATKEY_SHININESS, shininess) == AI_SUCCESS
mat.Get(AI_MATKEY_COLOR_SPECULAR, specularColor) == AI_SUCCESS &&
mat.Get(AI_MATKEY_SHININESS, shininess) == AI_SUCCESS
) {
// convert specular color to luminance
float specularIntensity = specularColor[0] * 0.2125f + specularColor[1] * 0.7154f + specularColor[2] * 0.0721f;
@ -693,17 +775,17 @@ void glTF2Exporter::ExportMaterials()
GetMatTex(mat, m->emissiveTexture, aiTextureType_EMISSIVE);
GetMatColor(mat, m->emissiveFactor, AI_MATKEY_COLOR_EMISSIVE);
mat->Get(AI_MATKEY_TWOSIDED, m->doubleSided);
mat->Get(AI_MATKEY_GLTF_ALPHACUTOFF, m->alphaCutoff);
mat.Get(AI_MATKEY_TWOSIDED, m->doubleSided);
mat.Get(AI_MATKEY_GLTF_ALPHACUTOFF, m->alphaCutoff);
aiString alphaMode;
if (mat->Get(AI_MATKEY_GLTF_ALPHAMODE, alphaMode) == AI_SUCCESS) {
if (mat.Get(AI_MATKEY_GLTF_ALPHAMODE, alphaMode) == AI_SUCCESS) {
m->alphaMode = alphaMode.C_Str();
} else {
float opacity;
if (mat->Get(AI_MATKEY_OPACITY, opacity) == AI_SUCCESS) {
if (mat.Get(AI_MATKEY_OPACITY, opacity) == AI_SUCCESS) {
if (opacity < 1) {
m->alphaMode = "BLEND";
m->pbrMetallicRoughness.baseColorFactor[3] *= opacity;
@ -711,88 +793,47 @@ void glTF2Exporter::ExportMaterials()
}
}
bool hasPbrSpecularGlossiness = false;
mat->Get(AI_MATKEY_GLTF_PBRSPECULARGLOSSINESS, hasPbrSpecularGlossiness);
if (hasPbrSpecularGlossiness) {
if (!mAsset->extensionsUsed.KHR_materials_pbrSpecularGlossiness) {
mAsset->extensionsUsed.KHR_materials_pbrSpecularGlossiness = true;
}
{
// KHR_materials_pbrSpecularGlossiness extension
// NOTE: This extension is being considered for deprecation (Dec 2020)
PbrSpecularGlossiness pbrSG;
GetMatColor(mat, pbrSG.diffuseFactor, AI_MATKEY_COLOR_DIFFUSE);
GetMatColor(mat, pbrSG.specularFactor, AI_MATKEY_COLOR_SPECULAR);
if (mat->Get(AI_MATKEY_GLTF_PBRSPECULARGLOSSINESS_GLOSSINESS_FACTOR, pbrSG.glossinessFactor) != AI_SUCCESS) {
float shininess;
if (mat->Get(AI_MATKEY_SHININESS, shininess) == AI_SUCCESS) {
pbrSG.glossinessFactor = shininess / 1000;
}
}
GetMatTex(mat, pbrSG.diffuseTexture, aiTextureType_DIFFUSE);
GetMatTex(mat, pbrSG.specularGlossinessTexture, aiTextureType_SPECULAR);
if (GetMatSpecGloss(mat, pbrSG)) {
mAsset->extensionsUsed.KHR_materials_pbrSpecularGlossiness = true;
m->pbrSpecularGlossiness = Nullable<PbrSpecularGlossiness>(pbrSG);
}
bool unlit;
if (mat->Get(AI_MATKEY_GLTF_UNLIT, unlit) == AI_SUCCESS && unlit) {
mAsset->extensionsUsed.KHR_materials_unlit = true;
m->unlit = true;
}
bool hasMaterialSheen = false;
mat->Get(AI_MATKEY_GLTF_MATERIAL_SHEEN, hasMaterialSheen);
if (hasMaterialSheen) {
mAsset->extensionsUsed.KHR_materials_sheen = true;
// glTFv2 is either PBR or Unlit
aiShadingMode shadingMode = aiShadingMode_PBR_BRDF;
mat.Get(AI_MATKEY_SHADING_MODEL, shadingMode);
if (shadingMode == aiShadingMode_Unlit) {
mAsset->extensionsUsed.KHR_materials_unlit = true;
m->unlit = true;
} else {
// These extensions are not compatible with KHR_materials_unlit or KHR_materials_pbrSpecularGlossiness
if (!m->pbrSpecularGlossiness.isPresent) {
// Sheen
MaterialSheen sheen;
GetMatColor(mat, sheen.sheenColorFactor, AI_MATKEY_GLTF_MATERIAL_SHEEN_COLOR_FACTOR);
mat->Get(AI_MATKEY_GLTF_MATERIAL_SHEEN_ROUGHNESS_FACTOR, sheen.sheenRoughnessFactor);
GetMatTex(mat, sheen.sheenColorTexture, AI_MATKEY_GLTF_MATERIAL_SHEEN_COLOR_TEXTURE);
GetMatTex(mat, sheen.sheenRoughnessTexture, AI_MATKEY_GLTF_MATERIAL_SHEEN_ROUGHNESS_TEXTURE);
if (GetMatSheen(mat, sheen)) {
mAsset->extensionsUsed.KHR_materials_sheen = true;
m->materialSheen = Nullable<MaterialSheen>(sheen);
}
bool hasMaterialClearcoat = false;
mat->Get(AI_MATKEY_GLTF_MATERIAL_CLEARCOAT, hasMaterialClearcoat);
if (hasMaterialClearcoat) {
mAsset->extensionsUsed.KHR_materials_clearcoat= true;
MaterialClearcoat clearcoat;
mat->Get(AI_MATKEY_GLTF_MATERIAL_CLEARCOAT_FACTOR, clearcoat.clearcoatFactor);
mat->Get(AI_MATKEY_GLTF_MATERIAL_CLEARCOAT_ROUGHNESS_FACTOR, clearcoat.clearcoatRoughnessFactor);
GetMatTex(mat, clearcoat.clearcoatTexture, AI_MATKEY_GLTF_MATERIAL_CLEARCOAT_TEXTURE);
GetMatTex(mat, clearcoat.clearcoatRoughnessTexture, AI_MATKEY_GLTF_MATERIAL_CLEARCOAT_ROUGHNESS_TEXTURE);
GetMatTex(mat, clearcoat.clearcoatNormalTexture, AI_MATKEY_GLTF_MATERIAL_CLEARCOAT_NORMAL_TEXTURE);
if (GetMatClearcoat(mat, clearcoat)) {
mAsset->extensionsUsed.KHR_materials_clearcoat = true;
m->materialClearcoat = Nullable<MaterialClearcoat>(clearcoat);
}
bool hasMaterialTransmission = false;
mat->Get(AI_MATKEY_GLTF_MATERIAL_TRANSMISSION, hasMaterialTransmission);
if (hasMaterialTransmission) {
mAsset->extensionsUsed.KHR_materials_transmission = true;
MaterialTransmission transmission;
mat->Get(AI_MATKEY_GLTF_MATERIAL_TRANSMISSION_FACTOR, transmission.transmissionFactor);
GetMatTex(mat, transmission.transmissionTexture, AI_MATKEY_GLTF_MATERIAL_TRANSMISSION_TEXTURE);
if (GetMatTransmission(mat, transmission)) {
mAsset->extensionsUsed.KHR_materials_transmission = true;
m->materialTransmission = Nullable<MaterialTransmission>(transmission);
}
}
}
}
}
/*
* Search through node hierarchy and find the node containing the given meshID.

26
code/AssetLib/glTF2/glTF2Exporter.h
View File

@ -72,6 +72,10 @@ namespace glTF2
struct OcclusionTextureInfo;
struct Node;
struct Texture;
struct PbrSpecularGlossiness;
struct MaterialSheen;
struct MaterialClearcoat;
struct MaterialTransmission;
// Vec/matrix types, as raw float arrays
typedef float (vec2)[2];
@ -97,15 +101,19 @@ namespace Assimp
protected:
void WriteBinaryData(IOStream* outfile, std::size_t sceneLength);
void GetTexSampler(const aiMaterial* mat, glTF2::Ref<glTF2::Texture> texture, aiTextureType tt, unsigned int slot);
void GetMatTexProp(const aiMaterial* mat, unsigned int& prop, const char* propName, aiTextureType tt, unsigned int idx);
void GetMatTexProp(const aiMaterial* mat, float& prop, const char* propName, aiTextureType tt, unsigned int idx);
void GetMatTex(const aiMaterial* mat, glTF2::Ref<glTF2::Texture>& texture, aiTextureType tt, unsigned int slot);
void GetMatTex(const aiMaterial* mat, glTF2::TextureInfo& prop, aiTextureType tt, unsigned int slot);
void GetMatTex(const aiMaterial* mat, glTF2::NormalTextureInfo& prop, aiTextureType tt, unsigned int slot);
void GetMatTex(const aiMaterial* mat, glTF2::OcclusionTextureInfo& prop, aiTextureType tt, unsigned int slot);
aiReturn GetMatColor(const aiMaterial* mat, glTF2::vec4& prop, const char* propName, int type, int idx);
aiReturn GetMatColor(const aiMaterial* mat, glTF2::vec3& prop, const char* propName, int type, int idx);
void GetTexSampler(const aiMaterial& mat, glTF2::Ref<glTF2::Texture> texture, aiTextureType tt, unsigned int slot);
void GetMatTexProp(const aiMaterial& mat, unsigned int& prop, const char* propName, aiTextureType tt, unsigned int idx);
void GetMatTexProp(const aiMaterial& mat, float& prop, const char* propName, aiTextureType tt, unsigned int idx);
void GetMatTex(const aiMaterial& mat, glTF2::Ref<glTF2::Texture>& texture, unsigned int &texCoord, aiTextureType tt, unsigned int slot);
void GetMatTex(const aiMaterial& mat, glTF2::TextureInfo& prop, aiTextureType tt, unsigned int slot);
void GetMatTex(const aiMaterial& mat, glTF2::NormalTextureInfo& prop, aiTextureType tt, unsigned int slot);
void GetMatTex(const aiMaterial& mat, glTF2::OcclusionTextureInfo& prop, aiTextureType tt, unsigned int slot);
aiReturn GetMatColor(const aiMaterial& mat, glTF2::vec4& prop, const char* propName, int type, int idx) const;
aiReturn GetMatColor(const aiMaterial& mat, glTF2::vec3& prop, const char* propName, int type, int idx) const;
bool GetMatSpecGloss(const aiMaterial& mat, glTF2::PbrSpecularGlossiness& pbrSG);
bool GetMatSheen(const aiMaterial& mat, glTF2::MaterialSheen& sheen);
bool GetMatClearcoat(const aiMaterial& mat, glTF2::MaterialClearcoat& clearcoat);
bool GetMatTransmission(const aiMaterial& mat, glTF2::MaterialTransmission& transmission);
void ExportMetadata();
void ExportMaterials();
void ExportMeshes();

62
code/AssetLib/glTF2/glTF2Importer.cpp
View File

@ -165,7 +165,8 @@ inline void SetMaterialTextureProperty(std::vector<int> &embeddedTexIdxs, Asset
}
mat->AddProperty(&uri, AI_MATKEY_TEXTURE(texType, texSlot));
mat->AddProperty(&prop.texCoord, 1, AI_MATKEY_GLTF_TEXTURE_TEXCOORD(texType, texSlot));
const int uvIndex = static_cast<int>(prop.texCoord);
mat->AddProperty(&uvIndex, 1, AI_MATKEY_UVWSRC(texType, texSlot));
if (prop.textureTransformSupported) {
aiUVTransform transform;
@ -208,6 +209,11 @@ inline void SetMaterialTextureProperty(std::vector<int> &embeddedTexIdxs, Asset
if (sampler->minFilter != SamplerMinFilter::UNSET) {
mat->AddProperty(&sampler->minFilter, 1, AI_MATKEY_GLTF_MAPPINGFILTER_MIN(texType, texSlot));
}
} else {
// Use glTFv2 default sampler
const aiTextureMapMode default_wrap = aiTextureMapMode_Wrap;
mat->AddProperty(&default_wrap, 1, AI_MATKEY_MAPPINGMODE_U(texType, texSlot));
mat->AddProperty(&default_wrap, 1, AI_MATKEY_MAPPINGMODE_V(texType, texSlot));
}
}
}
@ -238,16 +244,18 @@ static aiMaterial *ImportMaterial(std::vector<int> &embeddedTexIdxs, Asset &r, M
aimat->AddProperty(&str, AI_MATKEY_NAME);
}
// Set Assimp DIFFUSE and BASE COLOR to the pbrMetallicRoughness base color and texture for backwards compatibility
// Technically should not load any pbrMetallicRoughness if extensionsRequired contains KHR_materials_pbrSpecularGlossiness
SetMaterialColorProperty(r, mat.pbrMetallicRoughness.baseColorFactor, aimat, AI_MATKEY_COLOR_DIFFUSE);
SetMaterialColorProperty(r, mat.pbrMetallicRoughness.baseColorFactor, aimat, AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_BASE_COLOR_FACTOR);
SetMaterialColorProperty(r, mat.pbrMetallicRoughness.baseColorFactor, aimat, AI_MATKEY_BASE_COLOR);
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.baseColorTexture, aimat, aiTextureType_BASE_COLOR);
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);
aimat->AddProperty(&mat.pbrMetallicRoughness.metallicFactor, 1, AI_MATKEY_METALLIC_FACTOR);
aimat->AddProperty(&mat.pbrMetallicRoughness.roughnessFactor, 1, AI_MATKEY_ROUGHNESS_FACTOR);
float roughnessAsShininess = 1 - mat.pbrMetallicRoughness.roughnessFactor;
roughnessAsShininess *= roughnessAsShininess * 1000;
@ -268,52 +276,58 @@ static aiMaterial *ImportMaterial(std::vector<int> &embeddedTexIdxs, Asset &r, M
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);
aimat->AddProperty(&pbrSG.glossinessFactor, 1, AI_MATKEY_GLOSSINESS_FACTOR);
SetMaterialTextureProperty(embeddedTexIdxs, r, pbrSG.diffuseTexture, aimat, aiTextureType_DIFFUSE);
SetMaterialTextureProperty(embeddedTexIdxs, r, pbrSG.specularGlossinessTexture, aimat, aiTextureType_SPECULAR);
}
// glTFv2 is either PBR or Unlit
aiShadingMode shadingMode = aiShadingMode_PBR_BRDF;
if (mat.unlit) {
aimat->AddProperty(&mat.unlit, 1, AI_MATKEY_GLTF_UNLIT);
shadingMode = aiShadingMode_Unlit;
}
aimat->AddProperty(&shadingMode, 1, AI_MATKEY_SHADING_MODEL);
// KHR_materials_sheen
if (mat.materialSheen.isPresent) {
MaterialSheen &sheen = mat.materialSheen.value;
aimat->AddProperty(&mat.materialSheen.isPresent, 1, AI_MATKEY_GLTF_MATERIAL_SHEEN);
SetMaterialColorProperty(r, sheen.sheenColorFactor, aimat, AI_MATKEY_GLTF_MATERIAL_SHEEN_COLOR_FACTOR);
aimat->AddProperty(&sheen.sheenRoughnessFactor, 1, AI_MATKEY_GLTF_MATERIAL_SHEEN_ROUGHNESS_FACTOR);
SetMaterialTextureProperty(embeddedTexIdxs, r, sheen.sheenColorTexture, aimat, AI_MATKEY_GLTF_MATERIAL_SHEEN_COLOR_TEXTURE);
SetMaterialTextureProperty(embeddedTexIdxs, r, sheen.sheenRoughnessTexture, aimat, AI_MATKEY_GLTF_MATERIAL_SHEEN_ROUGHNESS_TEXTURE);
// Default value {0,0,0} disables Sheen
if (sheen.sheenColorFactor != defaultSheenFactor) {
SetMaterialColorProperty(r, sheen.sheenColorFactor, aimat, AI_MATKEY_SHEEN_COLOR_FACTOR);
aimat->AddProperty(&sheen.sheenRoughnessFactor, 1, AI_MATKEY_SHEEN_ROUGHNESS_FACTOR);
SetMaterialTextureProperty(embeddedTexIdxs, r, sheen.sheenColorTexture, aimat, AI_MATKEY_SHEEN_COLOR_TEXTURE);
SetMaterialTextureProperty(embeddedTexIdxs, r, sheen.sheenRoughnessTexture, aimat, AI_MATKEY_SHEEN_ROUGHNESS_TEXTURE);
}
}
// KHR_materials_clearcoat
if (mat.materialClearcoat.isPresent) {
MaterialClearcoat &clearcoat = mat.materialClearcoat.value;
aimat->AddProperty(&mat.materialClearcoat.isPresent, 1, AI_MATKEY_GLTF_MATERIAL_CLEARCOAT);
aimat->AddProperty(&clearcoat.clearcoatFactor, 1, AI_MATKEY_GLTF_MATERIAL_CLEARCOAT_FACTOR);
aimat->AddProperty(&clearcoat.clearcoatRoughnessFactor, 1, AI_MATKEY_GLTF_MATERIAL_CLEARCOAT_ROUGHNESS_FACTOR);
SetMaterialTextureProperty(embeddedTexIdxs, r, clearcoat.clearcoatTexture, aimat, AI_MATKEY_GLTF_MATERIAL_CLEARCOAT_TEXTURE);
SetMaterialTextureProperty(embeddedTexIdxs, r, clearcoat.clearcoatRoughnessTexture, aimat, AI_MATKEY_GLTF_MATERIAL_CLEARCOAT_ROUGHNESS_TEXTURE);
SetMaterialTextureProperty(embeddedTexIdxs, r, clearcoat.clearcoatNormalTexture, aimat, AI_MATKEY_GLTF_MATERIAL_CLEARCOAT_NORMAL_TEXTURE);
// Default value 0.0 disables clearcoat
if (clearcoat.clearcoatFactor != 0.0f) {
aimat->AddProperty(&clearcoat.clearcoatFactor, 1, AI_MATKEY_CLEARCOAT_FACTOR);
aimat->AddProperty(&clearcoat.clearcoatRoughnessFactor, 1, AI_MATKEY_CLEARCOAT_ROUGHNESS_FACTOR);
SetMaterialTextureProperty(embeddedTexIdxs, r, clearcoat.clearcoatTexture, aimat, AI_MATKEY_CLEARCOAT_TEXTURE);
SetMaterialTextureProperty(embeddedTexIdxs, r, clearcoat.clearcoatRoughnessTexture, aimat, AI_MATKEY_CLEARCOAT_ROUGHNESS_TEXTURE);
SetMaterialTextureProperty(embeddedTexIdxs, r, clearcoat.clearcoatNormalTexture, aimat, AI_MATKEY_CLEARCOAT_NORMAL_TEXTURE);
}
}
// KHR_materials_transmission
if (mat.materialTransmission.isPresent) {
MaterialTransmission &transmission = mat.materialTransmission.value;
aimat->AddProperty(&mat.materialTransmission.isPresent, 1, AI_MATKEY_GLTF_MATERIAL_TRANSMISSION);
aimat->AddProperty(&transmission.transmissionFactor, 1, AI_MATKEY_GLTF_MATERIAL_TRANSMISSION_FACTOR);
SetMaterialTextureProperty(embeddedTexIdxs, r, transmission.transmissionTexture, aimat, AI_MATKEY_GLTF_MATERIAL_TRANSMISSION_TEXTURE);
aimat->AddProperty(&transmission.transmissionFactor, 1, AI_MATKEY_TRANSMISSION_FACTOR);
SetMaterialTextureProperty(embeddedTexIdxs, r, transmission.transmissionTexture, aimat, AI_MATKEY_TRANSMISSION_TEXTURE);
}
return aimat;

12
code/Common/material.cpp
View File

@ -47,10 +47,8 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <assimp/material.h>
// -------------------------------------------------------------------------------
const char* TextureTypeToString(aiTextureType in)
{
switch (in)
{
const char *TextureTypeToString(aiTextureType in) {
switch (in) {
case aiTextureType_NONE:
return "n/a";
case aiTextureType_DIFFUSE:
@ -87,6 +85,12 @@ const char* TextureTypeToString(aiTextureType in)
return "DiffuseRoughness";
case aiTextureType_AMBIENT_OCCLUSION:
return "AmbientOcclusion";
case aiTextureType_SHEEN:
return "Sheen";
case aiTextureType_CLEARCOAT:
return "Clearcoat";
case aiTextureType_TRANSMISSION:
return "Transmission";
case aiTextureType_UNKNOWN:
return "Unknown";
default:

104
include/assimp/material.h
View File

@ -144,7 +144,7 @@ enum aiTextureMapMode {
enum aiTextureMapping {
/** The mapping coordinates are taken from an UV channel.
*
* The #AI_MATKEY_UVWSRC key specifies from which UV channel
* #AI_MATKEY_UVWSRC property specifies from which UV channel
* the texture coordinates are to be taken from (remember,
* meshes can have more than one UV channel).
*/
@ -202,11 +202,15 @@ enum aiTextureType {
/** The texture is combined with the result of the diffuse
* lighting equation.
* OR
* PBR Specular/Glossiness
*/
aiTextureType_DIFFUSE = 1,
/** The texture is combined with the result of the specular
* lighting equation.
* OR
* PBR Specular/Glossiness
*/
aiTextureType_SPECULAR = 2,
@ -288,6 +292,32 @@ enum aiTextureType {
aiTextureType_DIFFUSE_ROUGHNESS = 16,
aiTextureType_AMBIENT_OCCLUSION = 17,
/** PBR Material Modifiers
* Some modern renderers have further PBR modifiers that may be overlaid
* on top of the 'base' PBR materials for additional realism.
* These use multiple texture maps, so only the base type is directly defined
*/
/** Sheen
* Generally used to simulate textiles that are covered in a layer of microfibers
* eg velvet
* https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_sheen
*/
aiTextureType_SHEEN = 19,
/** Clearcoat
* Simulates a layer of 'polish' or 'laquer' layered on top of a PBR substrate
* https://autodesk.github.io/standard-surface/#closures/coating
* https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_clearcoat
*/
aiTextureType_CLEARCOAT = 20,
/** Transmission
* Simulates transmission through the surface
* May include further information such as wall thickness
*/
aiTextureType_TRANSMISSION = 21,
/** Unknown texture
*
* A texture reference that does not match any of the definitions
@ -309,6 +339,8 @@ ASSIMP_API const char *TextureTypeToString(enum aiTextureType in);
// ---------------------------------------------------------------------------
/** @brief Defines all shading models supported by the library
*
* Property: #AI_MATKEY_SHADING_MODEL
*
* The list of shading modes has been taken from Blender.
* See Blender documentation for more information. The API does
@ -318,6 +350,7 @@ ASSIMP_API const char *TextureTypeToString(enum aiTextureType in);
* Again, this value is just a hint. Assimp tries to select the shader whose
* most common implementation matches the original rendering results of the
* 3D modeler which wrote a particular model as closely as possible.
*
*/
enum aiShadingMode {
/** Flat shading. Shading is done on per-face base,
@ -364,13 +397,28 @@ enum aiShadingMode {
aiShadingMode_CookTorrance = 0x8,
/** No shading at all. Constant light influence of 1.0.
* Also known as "Unlit"
*/
aiShadingMode_NoShading = 0x9,
aiShadingMode_Unlit = aiShadingMode_NoShading, // Alias
/** Fresnel shading
*/
aiShadingMode_Fresnel = 0xa,
/** Physically-Based Rendering (PBR) shading using
* Bidirectional scattering/reflectance distribution function (BSDF/BRDF)
* There are multiple methods under this banner, and model files may provide
* data for more than one PBR-BRDF method.
* Applications should use the set of provided properties to determine which
* of their preferred PBR rendering methods are likely to be available
* eg:
* - If AI_MATKEY_METALLIC_FACTOR is set, then a Metallic/Roughness is available
* - If AI_MATKEY_GLOSSINESS_FACTOR is set, then a Specular/Glossiness is available
* Note that some PBR methods allow layering of techniques
*/
aiShadingMode_PBR_BRDF = 0xb,
#ifndef SWIG
_aiShadingMode_Force32Bit = INT_MAX
#endif
@ -922,12 +970,66 @@ extern "C" {
// ---------------------------------------------------------------------------
// PBR material support
// --------------------
// Properties defining PBR rendering techniques
#define AI_MATKEY_USE_COLOR_MAP "$mat.useColorMap", 0, 0
// Metallic/Roughness Workflow
// ---------------------------
// Base RGBA color factor. Will be multiplied by final base color texture values if extant
// Note: Importers may choose to copy this into AI_MATKEY_COLOR_DIFFUSE for compatibility
// with renderers and formats that do not support Metallic/Roughness PBR
#define AI_MATKEY_BASE_COLOR "$clr.base", 0, 0
#define AI_MATKEY_BASE_COLOR_TEXTURE aiTextureType_BASE_COLOR, 0
#define AI_MATKEY_USE_METALLIC_MAP "$mat.useMetallicMap", 0, 0
// Metallic factor. 0.0 = Full Dielectric, 1.0 = Full Metal
#define AI_MATKEY_METALLIC_FACTOR "$mat.metallicFactor", 0, 0
#define AI_MATKEY_METALLIC_TEXTURE aiTextureType_METALNESS, 0
#define AI_MATKEY_USE_ROUGHNESS_MAP "$mat.useRoughnessMap", 0, 0
// Roughness factor. 0.0 = Perfectly Smooth, 1.0 = Completely Rough
#define AI_MATKEY_ROUGHNESS_FACTOR "$mat.roughnessFactor", 0, 0
#define AI_MATKEY_ROUGHNESS_TEXTURE aiTextureType_DIFFUSE_ROUGHNESS, 0
// Specular/Glossiness Workflow
// ---------------------------
// Diffuse/Albedo Color. Note: Pure Metals have a diffuse of {0,0,0}
// AI_MATKEY_COLOR_DIFFUSE
// Specular Color.
// Note: Metallic/Roughness may also have a Specular Color
// AI_MATKEY_COLOR_SPECULAR
#define AI_MATKEY_SPECULAR_FACTOR "$mat.specularFactor", 0, 0
// Glossiness factor. 0.0 = Completely Rough, 1.0 = Perfectly Smooth
#define AI_MATKEY_GLOSSINESS_FACTOR "$mat.glossinessFactor", 0, 0
// Sheen
// -----
// Sheen base RGB color. Default {0,0,0}
#define AI_MATKEY_SHEEN_COLOR_FACTOR "$clr.sheen.factor", 0, 0
// Sheen Roughness Factor.
#define AI_MATKEY_SHEEN_ROUGHNESS_FACTOR "$mat.sheen.roughnessFactor", 0, 0
#define AI_MATKEY_SHEEN_COLOR_TEXTURE aiTextureType_SHEEN, 0
#define AI_MATKEY_SHEEN_ROUGHNESS_TEXTURE aiTextureType_SHEEN, 1
// Clearcoat
// ---------
// Clearcoat layer intensity. 0.0 = none (disabled)
#define AI_MATKEY_CLEARCOAT_FACTOR "$mat.clearcoat.factor", 0, 0
#define AI_MATKEY_CLEARCOAT_ROUGHNESS_FACTOR "$mat.clearcoat.roughnessFactor", 0, 0
#define AI_MATKEY_CLEARCOAT_TEXTURE aiTextureType_CLEARCOAT, 0
#define AI_MATKEY_CLEARCOAT_ROUGHNESS_TEXTURE aiTextureType_CLEARCOAT, 1
#define AI_MATKEY_CLEARCOAT_NORMAL_TEXTURE aiTextureType_CLEARCOAT, 2
// Transmission
// ------------
// https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_transmission
// Base percentage of light transmitted through the surface. 0.0 = Opaque, 1.0 = Fully transparent
#define AI_MATKEY_TRANSMISSION_FACTOR "$mat.transmission.factor", 0, 0
// Texture defining percentage of light transmitted through the surface.
// Multiplied by AI_MATKEY_TRANSMISSION_FACTOR
#define AI_MATKEY_TRANSMISSION_TEXTURE aiTextureType_TRANSMISSION, 0
// Emissive
// --------
#define AI_MATKEY_USE_EMISSIVE_MAP "$mat.useEmissiveMap", 0, 0
#define AI_MATKEY_EMISSIVE_INTENSITY "$mat.emissiveIntensity", 0, 0
#define AI_MATKEY_USE_AO_MAP "$mat.useAOMap", 0, 0

46
include/assimp/pbrmaterial.h
View File

@ -50,32 +50,32 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# pragma GCC system_header
#endif
#define AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_BASE_COLOR_FACTOR "$mat.gltf.pbrMetallicRoughness.baseColorFactor", 0, 0
#define AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_METALLIC_FACTOR "$mat.gltf.pbrMetallicRoughness.metallicFactor", 0, 0
#define AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_ROUGHNESS_FACTOR "$mat.gltf.pbrMetallicRoughness.roughnessFactor", 0, 0
#define AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_BASE_COLOR_TEXTURE aiTextureType_DIFFUSE, 1
//#define AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_BASE_COLOR_FACTOR "$mat.gltf.pbrMetallicRoughness.baseColorFactor", 0, 0
//#define AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_METALLIC_FACTOR "$mat.gltf.pbrMetallicRoughness.metallicFactor", 0, 0
//#define AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_ROUGHNESS_FACTOR "$mat.gltf.pbrMetallicRoughness.roughnessFactor", 0, 0
//#define AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_BASE_COLOR_TEXTURE aiTextureType_DIFFUSE, 1
#define AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_METALLICROUGHNESS_TEXTURE aiTextureType_UNKNOWN, 0
#define AI_MATKEY_GLTF_ALPHAMODE "$mat.gltf.alphaMode", 0, 0
#define AI_MATKEY_GLTF_ALPHACUTOFF "$mat.gltf.alphaCutoff", 0, 0
#define AI_MATKEY_GLTF_PBRSPECULARGLOSSINESS "$mat.gltf.pbrSpecularGlossiness", 0, 0
#define AI_MATKEY_GLTF_PBRSPECULARGLOSSINESS_GLOSSINESS_FACTOR "$mat.gltf.pbrMetallicRoughness.glossinessFactor", 0, 0
#define AI_MATKEY_GLTF_UNLIT "$mat.gltf.unlit", 0, 0
#define AI_MATKEY_GLTF_MATERIAL_SHEEN "$mat.gltf.materialSheen", 0, 0
#define AI_MATKEY_GLTF_MATERIAL_SHEEN_COLOR_FACTOR "$mat.gltf.materialSheen.sheenColorFactor", 0, 0
#define AI_MATKEY_GLTF_MATERIAL_SHEEN_ROUGHNESS_FACTOR "$mat.gltf.materialSheen.sheenRoughnessFactor", 0, 0
#define AI_MATKEY_GLTF_MATERIAL_SHEEN_COLOR_TEXTURE aiTextureType_UNKNOWN, 1
#define AI_MATKEY_GLTF_MATERIAL_SHEEN_ROUGHNESS_TEXTURE aiTextureType_UNKNOWN, 2
#define AI_MATKEY_GLTF_MATERIAL_CLEARCOAT "$mat.gltf.materialClearcoat", 0, 0
#define AI_MATKEY_GLTF_MATERIAL_CLEARCOAT_FACTOR "$mat.gltf.materialClearcoat.clearcoatFactor", 0, 0
#define AI_MATKEY_GLTF_MATERIAL_CLEARCOAT_ROUGHNESS_FACTOR "$mat.gltf.materialClearcoat.clearcoatRoughnessFactor", 0, 0
#define AI_MATKEY_GLTF_MATERIAL_CLEARCOAT_TEXTURE aiTextureType_UNKNOWN, 3
#define AI_MATKEY_GLTF_MATERIAL_CLEARCOAT_ROUGHNESS_TEXTURE aiTextureType_UNKNOWN, 4
#define AI_MATKEY_GLTF_MATERIAL_CLEARCOAT_NORMAL_TEXTURE aiTextureType_NORMALS, 1
#define AI_MATKEY_GLTF_MATERIAL_TRANSMISSION "$mat.gltf.materialTransmission", 0, 0
#define AI_MATKEY_GLTF_MATERIAL_TRANSMISSION_FACTOR "$mat.gltf.materialTransmission.transmissionFactor", 0, 0
#define AI_MATKEY_GLTF_MATERIAL_TRANSMISSION_TEXTURE aiTextureType_UNKNOWN, 5
//#define AI_MATKEY_GLTF_PBRSPECULARGLOSSINESS "$mat.gltf.pbrSpecularGlossiness", 0, 0
//#define AI_MATKEY_GLTF_PBRSPECULARGLOSSINESS_GLOSSINESS_FACTOR "$mat.gltf.pbrMetallicRoughness.glossinessFactor", 0, 0
//#define AI_MATKEY_GLTF_UNLIT "$mat.gltf.unlit", 0, 0
//#define AI_MATKEY_GLTF_MATERIAL_SHEEN "$mat.gltf.materialSheen", 0, 0
//#define AI_MATKEY_GLTF_MATERIAL_SHEEN_COLOR_FACTOR "$mat.gltf.materialSheen.sheenColorFactor", 0, 0
//#define AI_MATKEY_GLTF_MATERIAL_SHEEN_ROUGHNESS_FACTOR "$mat.gltf.materialSheen.sheenRoughnessFactor", 0, 0
//#define AI_MATKEY_GLTF_MATERIAL_SHEEN_COLOR_TEXTURE aiTextureType_UNKNOWN, 1
//#define AI_MATKEY_GLTF_MATERIAL_SHEEN_ROUGHNESS_TEXTURE aiTextureType_UNKNOWN, 2
//#define AI_MATKEY_GLTF_MATERIAL_CLEARCOAT "$mat.gltf.materialClearcoat", 0, 0
//#define AI_MATKEY_GLTF_MATERIAL_CLEARCOAT_FACTOR "$mat.gltf.materialClearcoat.clearcoatFactor", 0, 0
//#define AI_MATKEY_GLTF_MATERIAL_CLEARCOAT_ROUGHNESS_FACTOR "$mat.gltf.materialClearcoat.clearcoatRoughnessFactor", 0, 0
//#define AI_MATKEY_GLTF_MATERIAL_CLEARCOAT_TEXTURE aiTextureType_UNKNOWN, 3
//#define AI_MATKEY_GLTF_MATERIAL_CLEARCOAT_ROUGHNESS_TEXTURE aiTextureType_UNKNOWN, 4
//#define AI_MATKEY_GLTF_MATERIAL_CLEARCOAT_NORMAL_TEXTURE aiTextureType_NORMALS, 1
//#define AI_MATKEY_GLTF_MATERIAL_TRANSMISSION "$mat.gltf.materialTransmission", 0, 0
//#define AI_MATKEY_GLTF_MATERIAL_TRANSMISSION_FACTOR "$mat.gltf.materialTransmission.transmissionFactor", 0, 0
//#define AI_MATKEY_GLTF_MATERIAL_TRANSMISSION_TEXTURE aiTextureType_UNKNOWN, 5
#define _AI_MATKEY_GLTF_TEXTURE_TEXCOORD_BASE "$tex.file.texCoord"
//#define _AI_MATKEY_GLTF_TEXTURE_TEXCOORD_BASE "$tex.file.texCoord"
#define _AI_MATKEY_GLTF_MAPPINGNAME_BASE "$tex.mappingname"
#define _AI_MATKEY_GLTF_MAPPINGID_BASE "$tex.mappingid"
#define _AI_MATKEY_GLTF_MAPPINGFILTER_MAG_BASE "$tex.mappingfiltermag"
@ -83,7 +83,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#define _AI_MATKEY_GLTF_SCALE_BASE "$tex.scale"
#define _AI_MATKEY_GLTF_STRENGTH_BASE "$tex.strength"
#define AI_MATKEY_GLTF_TEXTURE_TEXCOORD(type, N) _AI_MATKEY_GLTF_TEXTURE_TEXCOORD_BASE, type, N
//#define AI_MATKEY_GLTF_TEXTURE_TEXCOORD(type, N) _AI_MATKEY_GLTF_TEXTURE_TEXCOORD_BASE, type, N
#define AI_MATKEY_GLTF_MAPPINGNAME(type, N) _AI_MATKEY_GLTF_MAPPINGNAME_BASE, type, N
#define AI_MATKEY_GLTF_MAPPINGID(type, N) _AI_MATKEY_GLTF_MAPPINGID_BASE, type, N
#define AI_MATKEY_GLTF_MAPPINGFILTER_MAG(type, N) _AI_MATKEY_GLTF_MAPPINGFILTER_MAG_BASE, type, N

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177
test/unit/utglTF2ImportExport.cpp
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@ -57,10 +57,9 @@ using namespace Assimp;
class utglTF2ImportExport : public AbstractImportExportBase {
public:
virtual bool importerTest() {
virtual bool importerMatTest(const char *file, bool spec_gloss, std::array<aiTextureMapMode, 2> exp_modes = { aiTextureMapMode_Wrap, aiTextureMapMode_Wrap }) {
Assimp::Importer importer;
const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/glTF2/BoxTextured-glTF/BoxTextured.gltf",
aiProcess_ValidateDataStructure);
const aiScene *scene = importer.ReadFile(file, aiProcess_ValidateDataStructure);
EXPECT_NE(scene, nullptr);
if (!scene) {
return false;
@ -72,13 +71,49 @@ public:
}
const aiMaterial *material = scene->mMaterials[0];
// This Material should be a PBR
aiShadingMode shadingMode;
EXPECT_EQ(aiReturn_SUCCESS, material->Get(AI_MATKEY_SHADING_MODEL, shadingMode));
EXPECT_EQ(aiShadingMode_PBR_BRDF, shadingMode);
// Should import the texture as diffuse and as base color
aiString path;
aiTextureMapMode modes[2];
std::array<aiTextureMapMode,2> modes;
EXPECT_EQ(aiReturn_SUCCESS, material->GetTexture(aiTextureType_DIFFUSE, 0, &path, nullptr, nullptr,
nullptr, nullptr, modes));
nullptr, nullptr, modes.data()));
EXPECT_STREQ(path.C_Str(), "CesiumLogoFlat.png");
EXPECT_EQ(modes[0], aiTextureMapMode_Mirror);
EXPECT_EQ(modes[1], aiTextureMapMode_Clamp);
EXPECT_EQ(exp_modes, modes);
// Also as Base Color
EXPECT_EQ(aiReturn_SUCCESS, material->GetTexture(aiTextureType_BASE_COLOR, 0, &path, nullptr, nullptr,
nullptr, nullptr, modes.data()));
EXPECT_STREQ(path.C_Str(), "CesiumLogoFlat.png");
EXPECT_EQ(exp_modes, modes);
// Should have a MetallicFactor (default is 1.0)
ai_real metal_factor = ai_real(0.5);
EXPECT_EQ(aiReturn_SUCCESS, material->Get(AI_MATKEY_METALLIC_FACTOR, metal_factor));
EXPECT_EQ(ai_real(0.0), metal_factor);
// And a roughness factor (default is 1.0)
ai_real roughness_factor = ai_real(0.5);
EXPECT_EQ(aiReturn_SUCCESS, material->Get(AI_MATKEY_ROUGHNESS_FACTOR, roughness_factor));
EXPECT_EQ(ai_real(1.0), roughness_factor);
aiColor3D spec_color = { 0, 0, 0 };
ai_real glossiness = ai_real(0.5);
if (spec_gloss) {
EXPECT_EQ(aiReturn_SUCCESS, material->Get(AI_MATKEY_COLOR_SPECULAR, spec_color));
constexpr ai_real spec_val(0.20000000298023225); // From the file
EXPECT_EQ(spec_val, spec_color.r);
EXPECT_EQ(spec_val, spec_color.g);
EXPECT_EQ(spec_val, spec_color.b);
EXPECT_EQ(aiReturn_SUCCESS, material->Get(AI_MATKEY_GLOSSINESS_FACTOR, glossiness));
EXPECT_EQ(ai_real(1.0), glossiness);
} else {
EXPECT_EQ(aiReturn_FAILURE, material->Get(AI_MATKEY_COLOR_SPECULAR, spec_color));
EXPECT_EQ(aiReturn_FAILURE, material->Get(AI_MATKEY_GLOSSINESS_FACTOR, glossiness));
}
return true;
}
@ -105,14 +140,89 @@ public:
};
TEST_F(utglTF2ImportExport, importglTF2FromFileTest) {
EXPECT_TRUE(importerTest());
EXPECT_TRUE(importerMatTest(ASSIMP_TEST_MODELS_DIR "/glTF2/BoxTextured-glTF/BoxTextured.gltf", false, {aiTextureMapMode_Mirror, aiTextureMapMode_Clamp}));
}
TEST_F(utglTF2ImportExport, importBinaryglTF2FromFileTest) {
EXPECT_TRUE(binaryImporterTest());
}
TEST_F(utglTF2ImportExport, importglTF2_KHR_materials_pbrSpecularGlossiness) {
EXPECT_TRUE(importerMatTest(ASSIMP_TEST_MODELS_DIR "/glTF2/BoxTextured-glTF-pbrSpecularGlossiness/BoxTextured.gltf", true));
}
void VerifyClearCoatScene(const aiScene *scene) {
ASSERT_NE(nullptr, scene);
ASSERT_TRUE(scene->HasMaterials());
// Find a specific Clearcoat material and check the values
const aiString partial_coated("Partial_Coated");
bool found_partial_coat = false;
for (size_t i = 0; i < scene->mNumMaterials; ++i) {
const aiMaterial *material = scene->mMaterials[i];
ASSERT_NE(nullptr, material);
if (material->GetName() == partial_coated) {
found_partial_coat = true;
ai_real clearcoat_factor(0.0f);
EXPECT_EQ(aiReturn_SUCCESS, material->Get(AI_MATKEY_CLEARCOAT_FACTOR, clearcoat_factor));
EXPECT_EQ(ai_real(1.0f), clearcoat_factor);
ai_real clearcoat_rough_factor(0.0f);
EXPECT_EQ(aiReturn_SUCCESS, material->Get(AI_MATKEY_CLEARCOAT_ROUGHNESS_FACTOR, clearcoat_rough_factor));
EXPECT_EQ(ai_real(0.03f), clearcoat_rough_factor);
// Should import the texture as diffuse and as base color
aiString path;
std::array<aiTextureMapMode, 2> modes;
static const std::array<aiTextureMapMode, 2> exp_modes = { aiTextureMapMode_Wrap, aiTextureMapMode_Wrap };
EXPECT_EQ(aiReturn_SUCCESS, material->GetTexture(AI_MATKEY_CLEARCOAT_TEXTURE, &path, nullptr, nullptr,
nullptr, nullptr, modes.data()));
EXPECT_STREQ(path.C_Str(), "PartialCoating.png");
EXPECT_EQ(exp_modes, modes);
}
}
EXPECT_TRUE(found_partial_coat);
}
TEST_F(utglTF2ImportExport, importglTF2_KHR_materials_clearcoat) {
Assimp::Importer importer;
const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/glTF2/ClearCoat-glTF/ClearCoatTest.gltf", aiProcess_ValidateDataStructure);
VerifyClearCoatScene(scene);
}
#ifndef ASSIMP_BUILD_NO_EXPORT
TEST_F(utglTF2ImportExport, importglTF2AndExport_KHR_materials_clearcoat) {
{
Assimp::Importer importer;
Assimp::Exporter exporter;
const aiScene* scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/glTF2/ClearCoat-glTF/ClearCoatTest.gltf", aiProcess_ValidateDataStructure);
ASSERT_NE(nullptr, scene);
// Export
EXPECT_EQ(aiReturn_SUCCESS, exporter.Export(scene, "glb2", ASSIMP_TEST_MODELS_DIR "/glTF2/ClearCoat-glTF/ClearCoatTest_out.glb"));
}
// And re-import
Assimp::Importer importer;
const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/glTF2/ClearCoat-glTF/ClearCoatTest_out.glb", aiProcess_ValidateDataStructure);
VerifyClearCoatScene(scene);
}
TEST_F(utglTF2ImportExport, importglTF2AndExport_KHR_materials_pbrSpecularGlossiness) {
Assimp::Importer importer;
Assimp::Exporter exporter;
const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/glTF2/BoxTextured-glTF-pbrSpecularGlossiness/BoxTextured.gltf",
aiProcess_ValidateDataStructure);
EXPECT_NE(nullptr, scene);
// Export
EXPECT_EQ(aiReturn_SUCCESS, exporter.Export(scene, "glb2", ASSIMP_TEST_MODELS_DIR "/glTF2/BoxTextured-glTF-pbrSpecularGlossiness/BoxTextured_out.glb"));
// And re-import
EXPECT_TRUE(importerMatTest(ASSIMP_TEST_MODELS_DIR "/glTF2/BoxTextured-glTF-pbrSpecularGlossiness/BoxTextured_out.glb", true));
}
TEST_F(utglTF2ImportExport, importglTF2AndExportToOBJ) {
Assimp::Importer importer;
Assimp::Exporter exporter;
@ -130,6 +240,7 @@ TEST_F(utglTF2ImportExport, importglTF2EmbeddedAndExportToOBJ) {
EXPECT_NE(nullptr, scene);
EXPECT_EQ(aiReturn_SUCCESS, exporter.Export(scene, "obj", ASSIMP_TEST_MODELS_DIR "/glTF2/BoxTextured-glTF-Embedded/BoxTextured_out.obj"));
}
#endif // ASSIMP_BUILD_NO_EXPORT
TEST_F(utglTF2ImportExport, importglTF2PrimitiveModePointsWithoutIndices) {
@ -492,32 +603,58 @@ TEST_F(utglTF2ImportExport, sceneMetadata) {
}
TEST_F(utglTF2ImportExport, texcoords) {
Assimp::Importer importer;
const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/glTF2/BoxTexcoords-glTF/boxTexcoords.gltf",
aiProcess_ValidateDataStructure);
const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/glTF2/BoxTexcoords-glTF/boxTexcoords.gltf", aiProcess_ValidateDataStructure);
ASSERT_NE(scene, nullptr);
ASSERT_TRUE(scene->HasMaterials());
const aiMaterial *material = scene->mMaterials[0];
aiString path;
unsigned int uvIndex = 255;
aiTextureMapMode modes[2];
EXPECT_EQ(aiReturn_SUCCESS, material->GetTexture(AI_MATKEY_BASE_COLOR_TEXTURE, &path, nullptr, &uvIndex, nullptr, nullptr, modes));
EXPECT_STREQ(path.C_Str(), "texture.png");
EXPECT_EQ(uvIndex, 0);
uvIndex = 255;
EXPECT_EQ(aiReturn_SUCCESS, material->GetTexture(AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_METALLICROUGHNESS_TEXTURE, &path, nullptr, &uvIndex, nullptr, nullptr, modes));
EXPECT_STREQ(path.C_Str(), "texture.png");
EXPECT_EQ(uvIndex, 1);
}
#ifndef ASSIMP_BUILD_NO_EXPORT
TEST_F(utglTF2ImportExport, texcoords_export) {
{
Assimp::Importer importer;
Assimp::Exporter exporter;
const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/glTF2/BoxTexcoords-glTF/boxTexcoords.gltf", aiProcess_ValidateDataStructure);
ASSERT_NE(scene, nullptr);
ASSERT_EQ(aiReturn_SUCCESS, exporter.Export(scene, "glb2", ASSIMP_TEST_MODELS_DIR "/glTF2/BoxTexcoords-glTF/boxTexcoords.gltf_out.glb"));
}
Assimp::Importer importer;
const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/glTF2/BoxTexcoords-glTF/boxTexcoords.gltf", aiProcess_ValidateDataStructure);
ASSERT_NE(scene, nullptr);
ASSERT_TRUE(scene->HasMaterials());
const aiMaterial *material = scene->mMaterials[0];
aiString path;
unsigned int uvIndex = 255;
aiTextureMapMode modes[2];
EXPECT_EQ(aiReturn_SUCCESS, material->GetTexture(aiTextureType_DIFFUSE, 0, &path, nullptr, nullptr,
nullptr, nullptr, modes));
EXPECT_EQ(aiReturn_SUCCESS, material->GetTexture(AI_MATKEY_BASE_COLOR_TEXTURE, &path, nullptr, &uvIndex, nullptr, nullptr, modes));
EXPECT_STREQ(path.C_Str(), "texture.png");
int uvIndex = -1;
EXPECT_EQ(aiGetMaterialInteger(material, AI_MATKEY_GLTF_TEXTURE_TEXCOORD(aiTextureType_DIFFUSE, 0), &uvIndex), aiReturn_SUCCESS);
EXPECT_EQ(uvIndex, 0);
// Using manual macro expansion of AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_METALLICROUGHNESS_TEXTURE here.
// The following works with some but not all compilers:
// #define APPLY(X, Y) X(Y)
// ..., APPLY(AI_MATKEY_GLTF_TEXTURE_TEXCOORD, AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_METALLICROUGHNESS_TEXTURE), ...
EXPECT_EQ(aiGetMaterialInteger(material, AI_MATKEY_GLTF_TEXTURE_TEXCOORD(aiTextureType_UNKNOWN, 0), &uvIndex), aiReturn_SUCCESS);
uvIndex = 255;
EXPECT_EQ(aiReturn_SUCCESS, material->GetTexture(AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_METALLICROUGHNESS_TEXTURE, &path, nullptr, &uvIndex, nullptr, nullptr, modes));
EXPECT_STREQ(path.C_Str(), "texture.png");
EXPECT_EQ(uvIndex, 1);
}
#endif // ASSIMP_BUILD_NO_EXPORT
TEST_F(utglTF2ImportExport, recursive_nodes) {
Assimp::Importer importer;
const aiScene* scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/glTF2/RecursiveNodes/RecursiveNodes.gltf", aiProcess_ValidateDataStructure);