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[psychlops/cpp.git] / win32gl / test / shader_sample / grating.field.glsl.txt

in float contrast, frequency, orientation, phase;\r
void main(void){\r
        float _x = sin(orientation)*xp()-cos(orientation)*yp();\r
        pix(0.5 + contrast*0.5*cos(frequency*_x + phase));\r
}