23 lines
678 B
GLSL
23 lines
678 B
GLSL
precision highp float;
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precision highp int;
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#include <utils>
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#include <cylinder_utils>
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in vec3 oldPos;
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in vec3 newPos;
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in vec3 ray;
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out vec4 fragColor;
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void main() {
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float oldArea = length(dFdx(oldPos)) * length(dFdy(oldPos));
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float newArea = length(dFdx(newPos)) * length(dFdy(newPos));
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fragColor = vec4(oldArea / newArea * 0.2, 1.0, 0.0, 0.0);
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vec3 refractedLight = refract(-light, vec3(0.0, 1.0, 0.0), IOR_AIR / IOR_WATER);
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vec2 t = intersectCylinder(newPos, -refractedLight, poolRadius, -poolHeight, poolHeight * 2.0);
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fragColor.r *= 1.0 / (1.0 + exp(-200.0 / (1.0 + 10.0 * (t.y - t.x)) * (newPos.y - refractedLight.y * t.y - poolHeight * 2.0 / 12.0)));
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}
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