mirror of
https://github.com/raylib-cs/raylib-cs
synced 2025-04-05 11:19:39 -04:00
41 lines
1.2 KiB
GLSL
41 lines
1.2 KiB
GLSL
#version 330
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// Input vertex attributes (from vertex shader)
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in vec2 fragTexCoord; // Texture coordinates (sampler2D)
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in vec4 fragColor; // Tint color
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// Output fragment color
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out vec4 finalColor; // Output fragment color
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// Uniform inputs
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uniform vec2 resolution; // Viewport resolution (in pixels)
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uniform vec2 mouse; // Mouse pixel xy coordinates
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uniform float time; // Total run time (in secods)
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// Draw circle
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vec4 DrawCircle(vec2 fragCoord, vec2 position, float radius, vec3 color)
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{
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float d = length(position - fragCoord) - radius;
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float t = clamp(d, 0.0, 1.0);
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return vec4(color, 1.0 - t);
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}
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void main()
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{
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vec2 fragCoord = gl_FragCoord.xy;
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vec2 position = vec2(mouse.x, resolution.y - mouse.y);
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float radius = 40.0;
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// Draw background layer
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vec4 colorA = vec4(0.2,0.2,0.8, 1.0);
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vec4 colorB = vec4(1.0,0.7,0.2, 1.0);
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vec4 layer1 = mix(colorA, colorB, abs(sin(time*0.1)));
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// Draw circle layer
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vec3 color = vec3(0.9, 0.16, 0.21);
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vec4 layer2 = DrawCircle(fragCoord, position, radius, color);
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// Blend the two layers
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finalColor = mix(layer1, layer2, layer2.a);
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}
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