mirror of https://github.com/bjornbytes/lovr.git
25 lines
774 B
GLSL
25 lines
774 B
GLSL
#version 460
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#extension GL_EXT_multiview : require
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#extension GL_GOOGLE_include_directive : require
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#include "shaders/lovr.glsl"
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vec4 lovrmain() {
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float y = UV.y;
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vec2 uv = vec2(UV.x, 1. - UV.y);
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uv = uv * 4. - 2.;
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const float k = sqrt(3.);
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uv.x = abs(uv.x) - 1.;
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uv.y = uv.y + 1. / k + .25;
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if (uv.x + k * uv.y > 0.) {
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uv = vec2(uv.x - k * uv.y, -k * uv.x - uv.y) / 2.;
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}
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uv.x -= clamp(uv.x, -2., 0.);
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float sdf = -length(uv) * sign(uv.y) - .5;
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float w = fwidth(sdf) * .5;
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float alpha = smoothstep(.22 + w, .22 - w, sdf);
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vec3 color = mix(vec3(.094, .662, .890), vec3(.913, .275, .6), clamp(y * 1.5 - .25, 0., 1.));
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color = mix(color, vec3(.2, .2, .24), smoothstep(-.12 + w, -.12 - w, sdf));
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return vec4(pow(color, vec3(2.2)), alpha);
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}
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