Talk:Image Format
Required Formats section says the following:
"... The implementation is forbidden to lose information from these formats. So, while an implementation may choose to turn GL_RGB4 into GL_R3_G3_B2, it is not permitted to turn GL_RGB8 into GL_RGB4 internally."
Is this correct? Going from GL_RGB4 to GL_R3_G3_B2 is losing information, yes?