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Diffstat (limited to 'indra/newview/llgltfmateriallist.cpp')
| -rw-r--r-- | indra/newview/llgltfmateriallist.cpp | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/indra/newview/llgltfmateriallist.cpp b/indra/newview/llgltfmateriallist.cpp new file mode 100644 index 0000000000..7ecbc6eeac --- /dev/null +++ b/indra/newview/llgltfmateriallist.cpp @@ -0,0 +1,186 @@ +/** + * @file llgltfmateriallist.cpp + * + * $LicenseInfo:firstyear=2022&license=viewerlgpl$ + * Second Life Viewer Source Code + * Copyright (C) 2022, Linden Research, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; + * version 2.1 of the License only. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * + * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA + * $/LicenseInfo$ + */ + +#include "llviewerprecompiledheaders.h" + +#include "llgltfmateriallist.h" + +#include "llassetstorage.h" +#include "llfilesystem.h" +#include "llsdserialize.h" + +#include "tinygltf/tiny_gltf.h" +#include <strstream> + +LLGLTFMaterialList gGLTFMaterialList; + +static LLColor4 get_color(const std::vector<double>& in) +{ + LLColor4 out; + for (S32 i = 0; i < llmin((S32)in.size(), 4); ++i) + { + out.mV[i] = in[i]; + } + + return out; +} + +static void set_from_model(LLGLTFMaterial* mat, tinygltf::Model& model) +{ + + S32 index; + + auto& material_in = model.materials[0]; + + // get albedo texture + index = material_in.pbrMetallicRoughness.baseColorTexture.index; + if (index >= 0) + { + mat->mAlbedoId.set(model.images[index].uri); + } + else + { + mat->mAlbedoId.setNull(); + } + + // get normal map + index = material_in.normalTexture.index; + if (index >= 0) + { + mat->mNormalId.set(model.images[index].uri); + } + else + { + mat->mNormalId.setNull(); + } + + // get metallic-roughness texture + index = material_in.pbrMetallicRoughness.metallicRoughnessTexture.index; + if (index >= 0) + { + mat->mMetallicRoughnessId.set(model.images[index].uri); + } + else + { + mat->mMetallicRoughnessId.setNull(); + } + + // get emissive texture + index = material_in.emissiveTexture.index; + if (index >= 0) + { + mat->mEmissiveId.set(model.images[index].uri); + } + else + { + mat->mEmissiveId.setNull(); + } + + mat->setAlphaMode(material_in.alphaMode); + mat->mAlphaCutoff = material_in.alphaCutoff; + + mat->mAlbedoColor = get_color(material_in.pbrMetallicRoughness.baseColorFactor); + mat->mEmissiveColor = get_color(material_in.emissiveFactor); + + mat->mMetallicFactor = material_in.pbrMetallicRoughness.metallicFactor; + mat->mRoughnessFactor = material_in.pbrMetallicRoughness.roughnessFactor; + + mat->mDoubleSided = material_in.doubleSided; +} + +LLGLTFMaterial* LLGLTFMaterialList::getMaterial(const LLUUID& id) +{ + List::iterator iter = mList.find(id); + if (iter == mList.end()) + { + LLGLTFMaterial* mat = new LLGLTFMaterial(); + mList[id] = mat; + + mat->ref(); + + gAssetStorage->getAssetData(id, LLAssetType::AT_MATERIAL, + [=](const LLUUID& id, LLAssetType::EType asset_type, void* user_data, S32 status, LLExtStat ext_status) + { + if (status) + { + LL_WARNS() << "Error getting material asset data: " << LLAssetStorage::getErrorString(status) << " (" << status << ")" << LL_ENDL; + } + + LLFileSystem file(id, asset_type, LLFileSystem::READ); + + std::vector<char> buffer; + buffer.resize(file.getSize()); + file.read((U8*)&buffer[0], buffer.size()); + + LLSD asset; + + // read file into buffer + std::istrstream str(&buffer[0], buffer.size()); + + if (LLSDSerialize::deserialize(asset, str, buffer.size())) + { + if (asset.has("version") && asset["version"] == "1.0") + { + if (asset.has("type") && asset["type"].asString() == "GLTF 2.0") + { + if (asset.has("data") && asset["data"].isString()) + { + std::string data = asset["data"]; + + tinygltf::TinyGLTF gltf; + tinygltf::TinyGLTF loader; + std::string error_msg; + std::string warn_msg; + + tinygltf::Model model_in; + + if (loader.LoadASCIIFromString(&model_in, &error_msg, &warn_msg, data.c_str(), data.length(), "")) + { + set_from_model(mat, model_in); + } + else + { + LL_WARNS() << "Failed to decode material asset: " << LL_ENDL; + LL_WARNS() << warn_msg << LL_ENDL; + LL_WARNS() << error_msg << LL_ENDL; + } + } + } + } + } + else + { + LL_WARNS() << "Failed to deserialize material LLSD" << LL_ENDL; + } + + mat->unref(); + }, nullptr); + + return mat; + } + + return iter->second; +} + |