Artur Vill

VFX Artist, Shader TD @ Weta Digital

[Artur Vill @shaderology]

hShadertoy and multipass shaders
#houdini #shadertoy

[Artur Vill @shaderology]

@iquilezles @StephenKing topologically - 15. one of the "holes" becomes outer edge when flattened

[Artur Vill @shaderology]

Updated hShadertoy after a six-month hiatus.
Direct importing from #shadertoy is now working. Updated IDE - look and feel is closer to the original. Transpiler got massive update. Compile rate is close to 90%
No updates to HDA. leaving it for last since it's probably the fun part

[Artur Vill @shaderology]

@Math_files @Flexi23

[Artur Vill @shaderology]

Fixed buffer shaders related issues in HDA. Couple of diffusion shaders that do get transpiled have the correct scale now. No updates to the Transpiler despite a mounting backlog of bugs:(
https://t.co/C13NIE59n7
#shadertoy #Houdini

[Artur Vill @shaderology]

The transpiler has been the trickiest part (tree-sitter parser + AST xformer). OCL doesnt have native matrix types. Derivatives like dFdx are fundamental GPU features that OCL simply doesnt support. Global uniforms (iTime, iChannel, etc.) used outside mainImage wont work either

[Artur Vill @shaderology]

experimental shadertoy importer for H21 Copernicus: Shadertoy API > IDE > GLSL to OpenCL transpiler > HDA. So far it supports buffer & cubemap shaders, common code block, cubemaps, videos, and volumes. Even some early tests with mouse, keyboard, webcam and sound inputs

[Artur Vill @shaderology]

@maxliani meanwhile, NZ homes get symmetric 8Gbps

[Artur Vill @shaderology]

@etheory_music Electron travels 1/2 speed in conducting metals. https://t.co/FURe9kYGnE. Btw, once starlink will use lasers for communication it will be faster than fibre optics under the oceans. Bunkers indeed

[Artur Vill @shaderology]

made a shaded variant in #shadertoy
https://t.co/tZ6BDqu1xx

[yonatan @zozuar]

#つぶやきGLSL https://t.co/DJz37Mx6gK
vec2 n,q,p=(FC.xy-.5*r)/r.y;
float d=dot(p,p),S=9.,i,a,j;
for(mat2 m=rotate2D(5.);j++<30.;){
p*=m;
n*=m;
q=p*S+t*4.+sin(t*4.-d*6.)*.8+j+n;
a+=dot(cos(q)/S,vec2(.2));
n-=sin(q);
S*=1.2;
}
o+=(a+.2)*vec4(4,2,1,0)+a+a-d;

[Lensform @dearlensform]

got lenses

[Artur Vill @shaderology]

well, hello there!

[Artur Vill @shaderology]

@PeterCawdron I've just finished 3zekiel and really enjoyed it!. I'm about to continue with the series. Since you love hard scifi/first contact stories then I highly recommend this rare find: "The Peacemaker's Code" by @Prof_Malhotra

[rich_lord @rich_lord]

Designs for a creature that can walk down a pipe.

[Space @redditSpaceView]

New Zealand seen from space

[Artur Vill @shaderology]

Best sci-fi book in years!

[Deepak Malhotra @Prof_Malhotra]

For those who prefer to LISTEN to books, here you go. (Also available through iTunes & Amazon)
-----
The Peacemaker's Code
By: Deepak Malhotra
Narrated by: Christopher Hurt
Length: 16 hours & 7 mins
Unabridged Audiobook
⭐️⭐️⭐️⭐️⭐️
4.8 out of 5 stars
-----
https://t.co/RbLmobnGiI

[Artur Vill @shaderology]

@keenanisalive

[Artur Vill @shaderology]

Topologically speaking, this toy has 3 holes (genus 3) and is homeomorphic to a fidget spinner

[Peter Hoehsl @PeterHoehsl]

It's been a busy 12 months so I only recently got a chance to indulge in some R&D to improve my skills at small scale fluid sims. This is what came out of it. Done with @sidefx #Houdini and rendered with @redshift3d

[Artur Vill @shaderology]

@maxliani Check out Transferwise card

[Artur Vill @shaderology]

Procedurally modeled eyes of #AlitaBattleAngel in #Houdini https://t.co/RQQa0R80J3