blender in openGL

Open Asset Import Library(assimp) 를 이용해서 blender를 읽어오고 openGL로 그릴수 있는 것으로 보인다.

 

Features Reads more than 30 3D file formats, including Collada, X, 3DS, Blend, Obj Converts them to a hierarchical in-memory data structure Provides 'post-processing steps' to improve the input data, i.e. generate normals and tangents or fix import issues. Provides APIs for both C and C++ Imports skeleton animations and skinning weights Supports complex multi-layer materials www.open3mod.com/ is an Open-Source viewer that is based off assimp to view models (Windows only)

[링크 : https://sourceforge.net/projects/assimp/]

 

Assimp::Importer importer; const aiScene *scene = importer.ReadFile(filename,aiProcessPreset_TargetRealtime_Fast); aiMesh *mesh = scene->mMeshes[0]; //assuming you only want the first mesh float *vertexArray; float *normalArray; float *uvArray; int numVerts; next extract the data numVerts = mesh->mNumFaces*3; vertexArray = new float[mesh->mNumFaces*3*3]; normalArray = new float[mesh->mNumFaces*3*3]; uvArray = new float[mesh->mNumFaces*3*2]; for(unsigned int i=0;i<mesh->mNumFaces;i++) {     const aiFace& face = mesh->mFaces[i];     for(int j=0;j<3;j++)     {         aiVector3D uv = mesh->mTextureCoords[0][face.mIndices[j]];         memcpy(uvArray,&uv,sizeof(float)*2);         uvArray+=2;         aiVector3D normal = mesh->mNormals[face.mIndices[j]];         memcpy(normalArray,&normal,sizeof(float)*3);         normalArray+=3;         aiVector3D pos = mesh->mVertices[face.mIndices[j]];         memcpy(vertexArray,&pos,sizeof(float)*3);         vertexArray+=3;     } } uvArray-=mesh->mNumFaces*3*2; normalArray-=mesh->mNumFaces*3*3; vertexArray-=mesh->mNumFaces*3*3;

[링크 : https://nickthecoder.wordpress.com/2013/01/20/mesh-loading-with-assimp/]

    [링크 : https://stackoverflow.com/questions/35111681/make-a-model-in-blender-and-load-in-opengl]