garageCube

Hi. Not sure where to post this, but I'll try here.

I love all the new materials, and the ability to make new or modify existing ones. I'm not to experienced with coding though, so I was wondering:

Could someone make a rain effect? Or modify an existing one?

I tried myself, to modify 'Starfield' by 1024 architecture (adapted from Tekf), with some success, but not 100%.

So: Is anyone up for the challenge? To make one and upload to the online material library? Or give me any hints as to how I could make one myself, or to modify 'Starfield' correctly?

To put it simply: I would love a material with a rain effect that can be modified like the excellent 'Water' material (also by 1024 architecture, adapted from Shadertoy). And while we're at it - why not a similar for a dynamic smoke effect?

Wow, that would've been something! To be able to use MadMapper for this, instead of messing with the After Effects Trapcode Particular plugin every time I need rain or smoke.

Thanks in advance

https://www.shadertoy.com/view/XdSGDc

then replace line 293:
vec3 col = Render(ray.vOrigin, vHitPos, normal);

by this:
vec3 col;

Thank you, franz! I'll try this out.

https://www.shadertoy.com/view/XdSGDc

then replace line 293:
vec3 col = Render(ray.vOrigin, vHitPos, normal);

by this:
vec3 col;

I get this error: ... regarding this line: I'm too n00b to figure this out. Any ideas?