private static void AddFaceToVbo(Block block, Vector3i blockPos, BlockFace blockFace, VertexArrayObject <Vector3> vao)
{
int indicesOffset = vao.GetBuffer(0).Length;
for (int i = 0; i < 4; i++)
{
vao.Add(0, facePositions[(int)blockFace * 4 + i] + blockPos.AsVector3());
}
int textureIndex = block.GetTextureId(blockFace);
for (int i = 0; i < 4; i++)
{
vao.Add(1, new Vector3(faceTexCoords[i])
{
Z = textureIndex
});
}
uint[] newIndices = new uint[faceIndices.Length];
for (int i = 0; i < newIndices.Length; i++)
{
newIndices[i] = (uint)(faceIndices[i] + indicesOffset);
}
vao.AddIndices(newIndices);
}