bgfx/tools/texturev/fs_texture_cube.sc
2017-07-09 11:47:13 -07:00

22 lines
511 B
Scala

$input v_texcoord0, v_color0
/*
* Copyright 2011-2017 Branimir Karadzic. All rights reserved.
* License: https://github.com/bkaradzic/bgfx#license-bsd-2-clause
*/
#include <bgfx_shader.sh>
SAMPLERCUBE(s_texColor, 0);
uniform mat4 u_mtx;
uniform vec4 u_params;
#define u_textureLod u_params.x
void main()
{
vec3 dir = vec3( (v_texcoord0.xy*2.0 - 1.0) * vec2(1.0, -1.0), 1.0);
dir = normalize(mul(u_mtx, vec4(dir, 0.0) ).xyz);
gl_FragColor = textureCubeLod(s_texColor, dir, u_textureLod) * v_color0;
}