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Add KHR_materials_transmission during import

pull/3552/head
Danny Kabrane 2020-12-23 10:43:01 +01:00
parent 197bf1e617
commit 2b097c1e73
4 changed files with 33 additions and 0 deletions
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10
code/AssetLib/glTF2/glTF2Asset.h
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@ -48,6 +48,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* KHR_lights_punctual full
* KHR_materials_sheen full
* KHR_materials_clearcoat full
* KHR_materials_transmission full
*/
#ifndef GLTF2ASSET_H_INC
#define GLTF2ASSET_H_INC
@ -739,6 +740,11 @@ struct MaterialClearcoat {
NormalTextureInfo clearcoatNormalTexture;
};
struct MaterialTransmission {
TextureInfo transmissionTexture;
float transmissionFactor = 0.f;
};
//! The material appearance of a primitive.
struct Material : public Object {
//PBR metallic roughness properties
@ -762,6 +768,9 @@ struct Material : public Object {
//extension: KHR_materials_clearcoat
Nullable<MaterialClearcoat> materialClearcoat;
//extension: KHR_materials_transmission
Nullable<MaterialTransmission> materialTransmission;
//extension: KHR_materials_unlit
bool unlit;
@ -1082,6 +1091,7 @@ public:
bool KHR_texture_transform;
bool KHR_materials_sheen;
bool KHR_materials_clearcoat;
bool KHR_materials_transmission;
} extensionsUsed;
//! Keeps info about the required extensions

12
code/AssetLib/glTF2/glTF2Asset.inl
View File

@ -1069,6 +1069,17 @@ inline void Material::Read(Value &material, Asset &r) {
}
}
if (r.extensionsUsed.KHR_materials_transmission) {
if (Value *curMaterialTransmission = FindObject(*extensions, "KHR_materials_transmission")) {
MaterialTransmission transmission;
ReadMember(*curMaterialTransmission, "transmissionFactor", transmission.transmissionFactor);
ReadTextureProperty(r, *curMaterialTransmission, "transmissionTexture", transmission.transmissionTexture);
this->materialTransmission = Nullable<MaterialTransmission>(transmission);
}
}
unlit = nullptr != FindObject(*extensions, "KHR_materials_unlit");
}
}
@ -1766,6 +1777,7 @@ inline void Asset::ReadExtensionsUsed(Document &doc) {
CHECK_EXT(KHR_texture_transform);
CHECK_EXT(KHR_materials_sheen);
CHECK_EXT(KHR_materials_clearcoat);
CHECK_EXT(KHR_materials_transmission);
#undef CHECK_EXT
}

8
code/AssetLib/glTF2/glTF2Importer.cpp
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@ -301,6 +301,14 @@ static aiMaterial *ImportMaterial(std::vector<int> &embeddedTexIdxs, Asset &r, M
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);
}
//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);
}
return aimat;
}

3
include/assimp/pbrmaterial.h
View File

@ -71,6 +71,9 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#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 "$tex.file.texCoord"
#define _AI_MATKEY_GLTF_MAPPINGNAME_BASE "$tex.mappingname"