1GL_ARB_texture_float 2http://www.opengl.org/registry/specs/ARB/texture_float.txt 3GL_ARB_texture_float 4 GL_RGBA32F_ARB 0x8814 5 GL_RGB32F_ARB 0x8815 6 GL_ALPHA32F_ARB 0x8816 7 GL_INTENSITY32F_ARB 0x8817 8 GL_LUMINANCE32F_ARB 0x8818 9 GL_LUMINANCE_ALPHA32F_ARB 0x8819 10 GL_RGBA16F_ARB 0x881A 11 GL_RGB16F_ARB 0x881B 12 GL_ALPHA16F_ARB 0x881C 13 GL_INTENSITY16F_ARB 0x881D 14 GL_LUMINANCE16F_ARB 0x881E 15 GL_LUMINANCE_ALPHA16F_ARB 0x881F 16 GL_TEXTURE_RED_TYPE_ARB 0x8C10 17 GL_TEXTURE_GREEN_TYPE_ARB 0x8C11 18 GL_TEXTURE_BLUE_TYPE_ARB 0x8C12 19 GL_TEXTURE_ALPHA_TYPE_ARB 0x8C13 20 GL_TEXTURE_LUMINANCE_TYPE_ARB 0x8C14 21 GL_TEXTURE_INTENSITY_TYPE_ARB 0x8C15 22 GL_TEXTURE_DEPTH_TYPE_ARB 0x8C16 23 GL_UNSIGNED_NORMALIZED_ARB 0x8C17 24