protot/3rdparty/bgfx/examples/common/imgui/fs_imgui_cubemap.sc

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2016-08-29 22:31:11 +02:00
$input v_normal
/*
* Copyright 2011-2016 Branimir Karadzic. All rights reserved.
* License: https://github.com/bkaradzic/bgfx#license-bsd-2-clause
*/
#include <bgfx_shader.sh>
uniform vec4 u_imageLodEnabled;
SAMPLERCUBE(s_texColor, 0);
#define u_imageLod u_imageLodEnabled.x
#define u_imageEnabled u_imageLodEnabled.y
void main()
{
vec3 color = textureCubeLod(s_texColor, v_normal, u_imageLod).xyz;
float alpha = 0.2 + 0.8*u_imageEnabled;
gl_FragColor = vec4(color, alpha);
}