レイマーチングで使える複雑めな距離関数を収集していきます。 球や直方体など単純な図形に関しては以下にまとまっているので、ここでは触れません。 Inigo Quilez :: fractals, computer graphics, mathematics, shaders, demoscene and more Recursive Tetrahedron http://glslsandbox.com/e#55834.0 四面体のIFSによる繰り返しです。最終的に四面体の頂点に対して距離を計算しています。 #define ITERATIONS 8 float deRecursiveTetrahedron(vec3 p, vec3 offset, float scale) { vec4 z = vec4(p, 1.0); for (int i = 0; i < ITERATIONS; i++)
Deleted articles cannot be recovered. Draft of this article would be also deleted. Are you sure you want to delete this article? とりあえずこの映像を見てください。 昨日の勉強会の懇親会中に20分間のライブコーディングでシェーダーを作りました！ 初めて人前でコーディングをしたんですが、めちゃくちゃ楽しかったです！！ （当日動かなかったpmod修正済です...） 差分 - q.x = abs(p.x ) - 10.; + q.x = abs(q.x ) - 10.;https://t.co/LH3TT4YzSU#klab_meetup pic.twitter.com/k61c3O2ZA1 — かねた (@kanetaaaaa) 2019年6月19日 20分間のライブ
About This page hosts the hg_sdf library for building signed distance functions (or more precise: signed distance bounds). Those are a very elegant and flexible representation of geometry that can be rendered or otherwise processed. Roughly, coded SDFs are to triangle meshes or voxels what vector graphics are to pixels. Building them is not easy yet. This is a bit like writing svg files by hand. E
May 5, 2015 Material Design on the GPU One of the things I like about Material Design is that it builds on principles we see in the real world. Depth is used to convey information, light is used to indicate seams, and drop shadows follow convincing behaviours. Material design is inspired by tactile materials, such as paper and ink. […] Surfaces can have elevation (z-height) and cast shadows on oth
In some ways path tracing is one of the simplest and most intuitive ways to do ray tracing. Imagine you want to simulate how the photons from one or more light sources bounce around a scene before reaching a camera. Each time a photon hits a surface, we choose a new randomly reflected direction and continue, adjusting the intensity according to how likely the chosen reflection is. Though this appr
This project is a Haskell and GLSL program containing my distance field / ray marching related experiments. The Haskell viewing application is doing the pre-processing, functioning as a development and debugging aid, allowing different shaders to be explored. It automatically reloads and recompiles shaders when they change, showing an overlay displaying any errors. There's a flexible frame buffer
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Rust GLSL crate