[HN Gopher] Show HN: Iridescent crystal with raymarching and sig... ___________________________________________________________________ Show HN: Iridescent crystal with raymarching and signed distance fields Author : winkerVSbecks Score : 24 points Date : 2023-07-04 19:52 UTC (3 hours ago) (HTM) web link (varun.ca) (TXT) w3m dump (varun.ca) | Etheryte wrote: | This is great, I spent more time looking through the linked demos | than I would like to admit. | Const-me wrote: | Looks very cool, but why? Unlike many other applications of SDFs, | for this particular one a traditional rasterization seems more | appropriate. | | The polyhedron being rendered only has 32 vertices and 60 | triangles. The indexed mesh gonna take 744 bytes of VRAM with | FP32 coordinates and uint16_t indices, which can be reduced to | 552 bytes by using FP16 coordinates. That's less data than the | GLSL source code to compute and render the SDF. Also, if MSAA is | enabled rasterization will deliver better visual quality. | abstractbeliefs wrote: | That's true for _this_ polyhedron, but it's useful and more | clear to demonstrate the technique with a simple example and | allow the mind to then explore what else could be modelled this | way than to blow someone away with complexity that they miss | the point. | | This is far more about SDFs than it is about the polyhedron. ___________________________________________________________________ (page generated 2023-07-04 23:01 UTC)