Converting GLSL to VEX

[art3mis]

Not sure if this should go in the Shaders sub forum. Obviously a huge topic but greatly inspired by the work of people like @FlexMonkey on twitter

"Simple Plasma" (https://www.shadertoy.com/view/XsVSzW ) expressed in 3D as a lattice of cylinders using  pic.twitter.com/9dW9va2qy0

 

Anyone aware of any tutorials that cover the basics of converting GLSL code to VEX for use inside a Volume Wrangle?

Edited June 12, 2017 by art3mis

[f1480187]

You just replace all non-vex stuff to vex standard syntax, it's usually easy:

1. Vec3 → vector
2. a.cross(b) → cross(a, b )
3. (iGlobalTime * 1.0) → @Time
4. (uv.xy += r) → (uv.x += r; uv.y += r) or, in that case, (uv += r)

And so on. You need know VEX to a certain extent or just ask on odforce. I have no clue about GLSL, so, I guess it not required. But it will be a plus, of course. Most tricky part is to understand how and where this code is executed.

This one turned to be almost direct analog of any normal VEX code: iterate over all shading points and set some vector attribute.

 

simple_plasma_shadertoy.hipnc

Edited June 13, 2017 by f1480187