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patriciogonzalezvivo/Debug RayMarching Scenes.json

Created February 17, 2026 18:03
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Debug RayMarching Scenes
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Debug RayMarching Scenes.json
{
"frag": "// Copyright Patricio Gonzalez Vivo, 2021 - http://patriciogonzalezvivo.com/\n\n#ifdef GL_ES\nprecision mediump float;\n#endif\n\nuniform vec3 u_camera;\nuniform vec3 u_light;\nuniform vec3 u_lightColor;\n\nuniform vec2 u_resolution;\nuniform vec2 u_mouse;\n\n\n// SPACE\n#define LOOK_AT_RIGHT_HANDED\n#define LIGHT_DIRECTION u_light\n#define RESOLUTION u_resolution\n#define LIGHT_COLOR vec3(0.95, 0.65, 0.5)\n#define RAYMARCH_AMBIENT vec3(0.7, 0.9, 1.0)\n#define RAYMARCH_BACKGROUND (RAYMARCH_AMBIENT + rayDirection.y * 0.8)\n#define DEBUG_FLIPPED_SPACE\n\n#define PYRAMID_POS vec3(2.0, 0.10, 2.0)\n#define CONE_POS vec3(0.0, 0.75, -2.0)\n\n#include \"lygia/space/ratio.glsl\"\n#include \"lygia/draw/matrix.glsl\"\n#include \"lygia/draw/point.glsl\"\n#include \"lygia/draw/axis.glsl\"\n#include \"lygia/space/perspective.glsl\"\n#include \"lygia/math/inverse.glsl\"\n#include \"lygia/math/transpose.glsl\"\n#include \"lygia/sdf.glsl\"\n#include \"lygia/lighting/raymarch.glsl\"\n#include \"lygia/color/space/linear2gamma.glsl\"\n\nfloat checkBoard(vec2 uv, vec2 _scale) {\n uv = floor(fract(uv * _scale) * 2.0);\n return saturate(min(1.0, uv.x + uv.y) - (uv.x * uv.y));\n}\n\nMaterial raymarchMap( in vec3 pos ) {\n float check = 0.5 + checkBoard(pos.xz, vec2(1.0, 1.0)) * 0.5;\n Material res = materialNew(vec3(check), 0.0, 0.5, planeSDF(pos));\n\n res = opUnion( res, materialNew( vec3(1.0, 1.0, 1.0), 1.0, 0.0, sphereSDF( pos-vec3( 0.0, 0.60, 0.0), 0.5 ) ) );\n res = opUnion( res, materialNew( vec3(0.0, 1.0, 1.0), boxSDF( pos-vec3( 2.0, 0.5, 0.0), vec3(0.4, 0.4, 0.4) ) ) );\n res = opUnion( res, materialNew( vec3(0.3, 0.3, 1.0), torusSDF( pos-vec3( 0.0, 0.5, 2.0), vec2(0.4,0.1) ) ) );\n res = opUnion( res, materialNew( vec3(0.3, 0.1, 0.3), capsuleSDF( pos,vec3(-2.3, 0.4,-0.2), vec3(-1.6,0.75,0.2), 0.2 ) ) );\n res = opUnion( res, materialNew( vec3(0.5, 0.3, 0.4), triPrismSDF( pos-vec3(-2.0, 0.50,-2.0), vec2(0.5,0.1) ) ) );\n res = opUnion( res, materialNew( vec3(0.2, 0.2, 0.8), cylinderSDF( pos-vec3( 2.0, 0.50,-2.0), vec2(0.2,0.4) ) ) );\n res = opUnion( res, materialNew( vec3(0.7, 0.5, 0.2), coneSDF( pos-CONE_POS, vec3(0.8,0.6,0.6) ) ) );\n res = opUnion( res, materialNew( vec3(0.4, 0.2, 0.9), hexPrismSDF( pos-vec3(-2.0, 0.60, 2.0), vec2(0.5,0.1) ) ) );\n res = opUnion( res, materialNew( vec3(0.1, 0.3, 0.6), pyramidSDF( pos-PYRAMID_POS, 1.0 ) ) );;\n\n return res;\n}\n\nvoid main() {\n vec3 color = vec3(0.0);\n vec2 pixel = 1.0/u_resolution;\n vec2 st = gl_FragCoord.xy * pixel;\n vec2 uv = ratio(st, u_resolution);\n vec2 mouse = ratio(u_mouse * pixel, u_resolution);\n\n mat4 viewMatrix = lookAtView(u_camera, vec3(0.0));\n\n color = raymarch(viewMatrix, uv).rgb;\n color = linear2gamma(color);\n\n vec4 debug = vec4(0.0);\n\n // matrix\n debug += matrix(uv - vec2(0.26, .05), viewMatrix);\n\n // 3d points\n mat4 M = perspective(1.05, 1.0, -1.0, 1.0) * inverse(viewMatrix);\n debug += point(uv, M, PYRAMID_POS + vec3(0.0, 1.0, 0.0));\n debug += point(uv, M, CONE_POS);\n debug += axis(uv, M, vec3(0.0), max(pixel.x, pixel.y));\n\n // 2d point\n debug += point(uv, mouse);\n\n color.rgb = mix(saturate(color.rgb), debug.rgb, debug.a);\n\n gl_FragColor = vec4( color, 1.0 );\n}",
"vert": "#ifdef GL_ES\nprecision mediump float;\n#endif\n\nattribute vec4 a_position;\nvarying vec4 v_position;\n\nvoid main() {\n v_position = a_position;\n gl_Position = a_position;\n}\n",
"commands": [
"plot,off",
"textures,off",
"buffers,off",
"cubemap,off",
"camera_position,2.16416,-2.40479,-4.13991",
"camera_look_at,-3.28701,2.33831,-1.60988",
"camera,default"
],
"assets": {},
"history": [
{
"gistId": "28034c785f4ec72f8cae432597cd1ba5",
"owner": {
"login": "patriciogonzalezvivo",
"id": 346914,
"avatar_url": "https://avatars.githubusercontent.com/u/346914?v=4"
},
"loadedAt": "2026-02-17T18:02:47.414Z"
}
]
}
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