Method BuildVertexBuffer

source/common/models/models_md2.cpp:287–328

//===========================================================================

void FDMDModel::BuildVertexBuffer(FModelRenderer *renderer)
{
	if (!GetVertexBuffer(renderer->GetType()))
	{
		LoadGeometry();

		int VertexBufferSize = info.numFrames * lodInfo[0].numTriangles * 3;
		unsigned int vindex = 0;

		auto vbuf = renderer->CreateVertexBuffer(false, info.numFrames == 1);
		SetVertexBuffer(renderer->GetType(), vbuf);

		FModelVertex *vertptr = vbuf->LockVertexBuffer(VertexBufferSize);

		for (int i = 0; i < info.numFrames; i++)
		{
			DMDModelVertex *vert = framevtx[i].vertices;
			DMDModelVertex *norm = framevtx[i].normals;

			frames[i].vindex = vindex;

			FTriangle *tri = lods[0].triangles;

			for (int ii = 0; ii < lodInfo[0].numTriangles; ii++)
			{
				for (int j = 0; j < 3; j++)
				{

					int ti = tri->textureIndices[j];
					int vi = tri->vertexIndices[j];

					FModelVertex *bvert = &vertptr[vindex++];
					bvert->Set(vert[vi].xyz[0], vert[vi].xyz[1], vert[vi].xyz[2], (float)texCoords[ti].s / info.skinWidth, (float)texCoords[ti].t / info.skinHeight);
					bvert->SetNormal(norm[vi].xyz[0], norm[vi].xyz[1], norm[vi].xyz[2]);
				}
				tri++;
			}
		}
		vbuf->UnlockVertexBuffer();
		UnloadGeometry();
	}
}

//===========================================================================
//