Hi there,
I wonder if there is a potential to do Volumetrics / Ray marching stuff in wz4. On one hand we have all sorts of density fields (ADF, SDF, PDF) and no proper way to render their effect... Maybe a volumetric material modulated by a 3d texture or something?... Any ideas?

it seems complicated :p, I never done this kind of thing.

This article says it's easy
http://iquilezles.org/www/articles/terr ... rching.htm

OK. Then maybe a basic fog material modulated by a 3d noise texture? I don't see any way to modulate fog for now...

I found into the deep of wz4 code, a piece of code (commented) that seems destined to display adf as rendernode.
Code seems correct but it mess the 'ops' (script code that define operators) part.

I'll try to do someting with that, maybe it could be a first step.

Cool. Was that the last remmed out part of adf.cpp?

yes, the RNRenderADF code

There are pointers to MakeRay and TraceRay functions necessary for raymarching. Any success yet?

I successfully write the operator and bind it to the RNRenderADF code and it runs correctly but it display nothing except a big box colored at edges.
All interesting render stuff is made by the associated shader in file adf_shader.asc, there is some part of code disabled and some errors, I need to works on this part to get something usefull...

OK. Good luck there!

Ok I pushed on github a restored version of the RenderADF code with its new operator.
It render an adf volume (fromMesh ADF) but need some tweaks to do something better, and for now I don't see cleary what we can do with that...

Yeah... Not much. Besides, It blacks out the rest of the scene and makes other meshes transparent... As if it didn't do a z-buffer check...

at worst, we can use it for debugging adf volumes as this render is better than the default previewer for adf operators

OK. I wonder if fog material can be modulated by texture. That would be great!

you mean something like that (2nd example) ?

I prefer the particles volume (first example)