21 lines
552 B
GLSL
21 lines
552 B
GLSL
#version 120
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uniform float zoom;
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varying vec3 ec_pos;
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void main() {
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vec3 base3 = vec3(0.99, 0.96, 0.89);
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vec3 base2 = vec3(0.92, 0.91, 0.83);
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vec3 base00 = vec3(0.40, 0.48, 0.51);
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vec3 ec_normal = normalize(cross(dFdx(ec_pos), dFdy(ec_pos)));
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ec_normal.z *= zoom;
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ec_normal = normalize(ec_normal);
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float a = dot(ec_normal, vec3(0.0, 0.0, 1.0));
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float b = dot(ec_normal, vec3(-0.57, -0.57, 0.57));
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gl_FragColor = vec4((a*base2 + (1-a)*base00)*0.5 +
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(b*base3 + (1-b)*base00)*0.5, 1.0);
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}
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