mirror of
https://github.com/libretro/RetroArch
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a2c69ec254
system is very limited in terms of how we can set custom menu shaders - will require a rethink
30 lines
699 B
C
30 lines
699 B
C
#include "shaders_common.h"
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static const char *stock_vertex_xmb_snow = GLSL(
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in vec3 VertexCoord;
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uniform float time;
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float iqhash( float n )
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{
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return fract(sin(n)*43758.5453);
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}
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float noise( vec3 x )
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{
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vec3 p = floor(x);
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vec3 f = fract(x);
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f = f*f*(3.0-2.0*f);
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float n = p.x + p.y*57.0 + 113.0*p.z;
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return mix(mix(mix( iqhash(n+0.0 ), iqhash(n+1.0 ),f.x),
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mix( iqhash(n+57.0 ), iqhash(n+58.0 ),f.x),f.y),
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mix(mix( iqhash(n+113.0), iqhash(n+114.0),f.x),
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mix( iqhash(n+170.0), iqhash(n+171.0),f.x),f.y),f.z);
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}
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void main()
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{
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vec3 v = vec3(VertexCoord.x, 0.0, VertexCoord.y);
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gl_Position = vec4(v, 1.0);
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}
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);
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