Attach color buffer.
void CL_FrameBuffer::attach_color_buffer( int attachment_index, const CL_RenderBuffer & render_buffer); void CL_FrameBuffer::attach_color_buffer( int attachment_index, const CL_Texture & texture, int level = 0, int zoffset = 0); void CL_FrameBuffer::attach_color_buffer( int attachment_index, const CL_Texture & texture, CL_TextureSubtype subtype, int level = 0, int zoffset = 0);