2
http://developer.apple.com/opengl/extensions/apple_float_pixels.html
4
GL_COLOR_FLOAT_APPLE 0x8A0F
5
GL_RGBA_FLOAT32_APPLE 0x8814
6
GL_RGB_FLOAT32_APPLE 0x8815
7
GL_ALPHA_FLOAT32_APPLE 0x8816
8
GL_INTENSITY_FLOAT32_APPLE 0x8817
9
GL_LUMINANCE_FLOAT32_APPLE 0x8818
10
GL_LUMINANCE_ALPHA_FLOAT32_APPLE 0x8819
11
GL_RGBA_FLOAT16_APPLE 0x881A
12
GL_RGB_FLOAT16_APPLE 0x881B
13
GL_ALPHA_FLOAT16_APPLE 0x881C
14
GL_INTENSITY_FLOAT16_APPLE 0x881D
15
GL_LUMINANCE_FLOAT16_APPLE 0x881E
16
GL_LUMINANCE_ALPHA_FLOAT16_APPLE 0x881F