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18 lines
404 B
C
18 lines
404 B
C
#include "shaders_common.h"
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static const char *stock_fragment_xmb = GLSL(
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uniform float time;
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varying vec3 fragVertexEc;
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vec3 up = vec3(0, 0, 1);
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void main()
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{
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vec3 X = dFdx(fragVertexEc);
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vec3 Y = dFdy(fragVertexEc);
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vec3 normal=normalize(cross(X,Y));
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float c = (1.0 - dot(normal, up));
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c = (1.0 - cos(c*c))/3.0;
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gl_FragColor = vec4(c, c, c, 1.0);
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}
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);
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