1GL_EXT_texture_shared_exponent 2http://developer.download.nvidia.com/opengl/specs/GL_EXT_texture_shared_exponent.txt 3GL_EXT_texture_shared_exponent 4 5 GL_RGB9_E5_EXT 0x8C3D 6 GL_UNSIGNED_INT_5_9_9_9_REV_EXT 0x8C3E 7 GL_TEXTURE_SHARED_SIZE_EXT 0x8C3F 8