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22 lines
526 B
Scala
22 lines
526 B
Scala
$input v_texcoord0
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/*
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* Copyright 2014 Dario Manesku. All rights reserved.
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* License: http://www.opensource.org/licenses/BSD-2-Clause
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*/
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#include <bgfx_shader.sh>
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uniform vec4 u_imageLodEnabled;
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uniform vec4 u_swizzle;
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SAMPLER2D(s_texColor, 0);
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#define u_imageLod u_imageLodEnabled.x
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#define u_imageEnabled u_imageLodEnabled.y
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void main()
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{
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float color = dot(texture2DLod(s_texColor, v_texcoord0, u_imageLod), u_swizzle);
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float alpha = 0.2 + 0.8*u_imageEnabled;
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gl_FragColor = vec4(vec3_splat(color), alpha);
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}
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