Lmst

#glsl

80 vertices in 2-fold dihedral symmetry has triangle strips of 4 different lengths.

#AlgorithmicArt #CreativeCoding
#Processing #glsl #shaders

We can also get 80-vertex tetrahedral symmetry with a more "traditional" arrangement of 12 pentagons and the rest hexagons.

#AlgorithmicArt #CreativeCoding
#Processing #glsl #shaders

Here is an 80-vertex sphere in tetrahedral symmetry with 24 valence-7 vertices.

#AlgorithmicArt #CreativeCoding
#Processing #glsl #shaders

✨ I just made a new release of ShaderWorkshop¹ (v0.5.0).

Since my last release announcement, quite a few features got added (about 2 releases):
- recursive include directive
- fps indicator
- reworked error management
- mouse support
- live controls for floats, int, bool and colors

¹ https://github.com/ubitux/ShaderWorkshop

#glsl #shader #foss #webgl

birth of a portal #glsl #allcode #noai #genart

metalscape #glsl #genart

tinfoil mountains #glsl #genart #allcode

No More Shading Languages: Compiling C++ to Vulkan Shaders

#Vulkan #Compilers #GLSL #Rendering #Raytracing #Package

https://hgpu.org/?p=29983

I can't compete with the mod or fract version in term of code length, but I'm able to get the HSL and HSV conversions without any of these functions, so I guess it's faster?

mod version is derived from iq, fract version derived from @samhocevar, and the clumsy arithmetic from me.

Can we do better?

#glsl #shader

$HSV and HSL hue strips, along with the following code: vec3 _h2c(float h) { // return sat(abs(mod(h*6.+vec3(0,4,2),6.)-3.)-1.); // return sat(abs(fract(h+vec3(3,2,1)/3.)*6.-3.)-1.); return sat(vec3(-1,2,2)+vec3(1,-1,-1)*abs(h*6.-vec3(3,2,4))); } vec3 hsl2srgb(float h, float s, float l) { return l + s * (_h2c(h)-.5) * (1.-abs(2.*l-1.)); } vec3 hsv2srgb(float h, float s, float v) { return v * mix(vec3(1), _h2c(h), s); } vec3 hsl2srgb(vec3 c) { return hsl2srgb(c.x, c.y, c.z); } vec3 hsv2srgb(vec3 c) { return hsv2srgb(c.x, c.y, c.z); }$

Tetrahedral symmetry requires that a general point be in a set of 12 -- on each of the 4 faces in each of 3 orientations. You can also add 4 points at the vertices, 4 at each face center, or 6 at each edge center. Combined, any even number of points >= 4 can be arranged with tetrahedral symmetry, albeit not always evenly.

Here is 50 points in tetrahedral symmetry which requires that some of them have valence 7.

#AlgorithmicArt #CreativeCoding
#Processing #glsl #shaders

I've been porting https://github.com/2Retr0/GodotOceanWaves to the Recoil Engine/Beyond All Reason. Need to do a bit of work on optimization, a ton of clean up, and then adding some features.

My fish schooling sim(boids) needed a nicer place to live. So I went to work.

Pretty far from done but there is potential.

#Godot #BAR #Lua #GLSL

Screenshot of Beyond All Reason. The water plane is replaced with a clipmap which is displaced by a wave simulation. Each level of the clipmap is colored differently.

Screenshot from Beyond All Reason. A wave simulation is running.

testing new wrinkle system on torso.
ultra fast fbm : )
#glsl #shader #raymarching

50 vertices arranged in D6 symmetry is interesting in that it forms two different but close in length triangle strips -- one following the longitudes and the other the latitudes.

#TilingTuesday
#AlgorithmicArt #CreativeCoding
#Processing #glsl #shaders

And 22 vertices can also arrange with 2-fold cylindrical symmetry that runs all the pentagons together into one long strip. It produces one long triangle strip and three short ones.

#TilingTuesday
#AlgorithmicArt #CreativeCoding
#Processing #glsl #shaders

22 vertices can also arrange with 2-fold dihedral symmetry with two strips of six pentagons each separated by a single loop of 10 hexagons. The triangulation has two long triangle strips and two short ones.

#TilingTuesday
#AlgorithmicArt #CreativeCoding
#Processing #glsl #shaders