GL_EXT_texture_lod_bias
https://www.khronos.org/registry/OpenGL/extensions/EXT/EXT_texture_lod_bias.txt
GL_EXT_texture_lod_bias

	GL_MAX_TEXTURE_LOD_BIAS_EXT 0x84FD
	GL_TEXTURE_FILTER_CONTROL_EXT 0x8500
	GL_TEXTURE_LOD_BIAS_EXT 0x8501
