1$input v_dir
2
3/*
4 * Copyright 2014-2016 Dario Manesku. All rights reserved.
5 * License: https://github.com/bkaradzic/bgfx#license-bsd-2-clause
6 */
7
8#include "../common/common.sh"
9#include "uniforms.sh"
10
11SAMPLERCUBE(s_texCube, 0);
12SAMPLERCUBE(s_texCubeIrr, 1);
13
14void main()
15{
16	vec3 dir = normalize(v_dir);
17
18	vec4 color;
19	if (u_bgType == 7.0)
20	{
21		color = toLinear(textureCube(s_texCubeIrr, dir));
22	}
23	else
24	{
25		float lod = u_bgType;
26		dir = fixCubeLookup(dir, lod, 256.0);
27		color = toLinear(textureCubeLod(s_texCube, dir, lod));
28	}
29	color *= exp2(u_exposure);
30
31	gl_FragColor = toFilmic(color);
32}
33