72 lines
1.8 KiB
GLSL
72 lines
1.8 KiB
GLSL
Shader "CrispyPin/LibGarbageExample"
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{
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Properties
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{
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[Header(Raymarcher Properties)]
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_MaxSteps ("Max steps", Int) = 128
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_MaxDist ("Max distance", Float) = 128
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_SurfDist ("Surface distance threshold", Range(0.00001, 0.05)) = 0.001
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}
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SubShader
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{
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Tags { "RenderType"="Opaque" }
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Cull Front
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LOD 100
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Pass
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{
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CGPROGRAM
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#pragma vertex vert
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#pragma fragment frag
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int _MaxSteps;
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#define MAX_STEPS _MaxSteps
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float _MaxDist;
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#define MAX_DIST _MaxDist
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float _SurfDist;
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#define SURF_DIST _SurfDist
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#define REFLECTIONS 1
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#define DISTANCE_FN main_dist
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#define MATERIAL_FN main_mat
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#define LIGHT_FN lighting
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// #define DISABLE_DEPTH
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// #define DISCARD_ON_MISS
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// #define USE_WORLD_SPACE
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#define SCENE_SCALE 0.05
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#include "libgarbage.cginc"
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float main_dist(float3 p) {
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float d = sdPlaneY(p, 0);
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d = qIntersect(d, sdSphere(p, 9), 0.5);
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d = qUnion(d, sdSphere(p - float3(0, 2, 0), 2));
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d = qUnion(d, sdTorus(rotX(p, _Time * 40 + UNITY_PI / 2), 5, 0.5), 0.5);
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d = qUnion(d, sdTorus(rotZ(p, _Time * 40 + UNITY_PI / 2), 5, 0.5), 0.5);
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d = qUnion(d, sdTorus(rotX(p, _Time * 40), 5, 0.5), 0.5);
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d = qUnion(d, sdTorus(rotZ(p, _Time * 40), 5, 0.5), 0.5);
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// small spheres
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float3 p2 = abs(rotY(p, -20 * _Time)) - float3(1.5, sin(_Time.y * 5) + 1, 1.5);
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d = qUnion(d, sdSphere(p2, 0.7), 0.2);
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return d;
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}
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SurfacePoint main_mat(float3 p) {
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float3 p2 = repXYZ(p, 2);
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return mSphere(p2, 0.5, mat(clamp(abs(p), 0, 1), 0.1));
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}
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float3 lighting(Ray ray) {
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float3 sun_dir = normalize(float3(1, 0.5, 0));
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if (ray.missed)
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return float3(0.15, 0.25, 0.3);
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float3 col = 0;
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col = ray.mat.col * clamp(dot(ray.normal, sun_dir),0.01,1);
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return col;
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}
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ENDCG
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}
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}
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}
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