protot/3rdparty/bgfx/tools/texturev/fs_texture_cube.sc

22 lines
501 B
Scala

$input v_texcoord0, v_color0
/*
* Copyright 2011-2016 Branimir Karadzic. All rights reserved.
* License: http://www.opensource.org/licenses/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*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;
}