cvr-props/Assets/raymarched/glitch_sphere.shader

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Shader "CrispyPin/Spheres"
{
Properties
{
[Header(Raymarcher Properties)]
_MaxSteps ("Max steps", Integer) = 128
_MaxDist ("Max distance", Float) = 128
_SurfDist ("Surface distance threshold", Range(.0001, .05)) = .001
}
SubShader
{
Tags { "RenderType"="Opaque" }
Cull Front
LOD 100
Pass
{
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
int _MaxSteps;
float _MaxDist;
float _SurfDist;
#define MAX_STEPS _MaxSteps
#define MAX_DIST _MaxDist
#define SURF_DIST _SurfDist
#define SCENE_FN main
#define LIGHT_FN lighting
// #define SCENE_SCALE 1
#define DISCARD_ON_MISS
#include "lib/libgarbage.cginc"
#define SPEED 1.5
#define BOX_SIZE .15
#define RADIUS BOX_SIZE*2
float3 checkers(float3 p, float3 a, float3 b, float2 size) {
float2 q = p.xz / size;
q = int2(abs(q) + .5);
int s = ((q.x + q.y) % 2);
return s * a + (1 - s) * b;
}
SurfacePoint main(float3 p) {
SurfacePoint d;
const float COUNT_Y = 20;
const float COUNT_R = 20;
float lat = asin(p.y) * COUNT_Y;
float long = atan2(p.z, p.x) * COUNT_R + _Time.y * 16;
float r = length(p);
// float grid = (1-abs(smoothstep(0, 0.5, sin(long))-0.5))*2 - 1;
float grid = (1-abs(smoothstep(0, 0.5, sin(lat))-0.5))*2 - 1;
d = mSphere(p, 0.21,
mat(abs(rotY(p, _Time.y*-4)/0.21))
// mat(lat, long, grid)
);
// float long
lat = floor(lat+0.5)-0.5;
long = floor(long+0.5)-0.5;
float sx = sin(long);
float sz = cos(long);
float sy = sin(lat);
d = qUnion(d, mSphere(p - normalize(float3(sx, sy, sz))*r, 0.1));
return d;
}
float3 lighting(Ray ray) {
float3 sun_dir = normalize(float3(2, 1, -1));
if (ray.missed) {
return lRenderSky(ray.dir, sun_dir);
}
float3 light = lSun(ray.normal, sun_dir);
// light *= lShadow(ray.hit_pos + ray.normal * SURF_DIST, sun_dir, 50);
light += lSky(ray.normal)*5;
return 1;
}
ENDCG
}
}
}