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| 7/2/2019 | The new cubemap feature of Shadertoy can be used as a cache for diffuse lighting on a pair of cubes, while specular lighting is still done dynamically. It's a 1024x1024 cubemap, so only one side of the cubemap is updated per pass to keep it fast: https://www.shadertoy.com/view/Wss3Ds  |
| 17/1/2019 | Intersection test of ray with bilinear surface (non-planar quadrilateral): (link: https://www.shadertoy.com/view/3dXGWs) I'm not sure if the intersection test code is minimal. I made this mostly to show how a bilinear patch is bounded by the tetrahedron defined by it's 4 points (useful for culling!). |
| 6/1/2019 | Here's a way to do bouncing ball collisions without storing any state between frames. It allows cool stuff like making time go backwards, since the whole rendering is a pure function of time. It does analytic collisions between parabolas and planes in 3D: https://www.shadertoy.com/view/WdfGzj |
| 25/11/2018 | New realtime animation Bad Syndrome released at Vortex this weekend, made in Notch. https://www.pouet.net/prod.php?which=79205 |
| 22/11/2018 | Truchet polygons in a 4.6.12 (squares, hexagons, and dodecagons) tiling: https://www.shadertoy.com/view/llyBRG  |
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