[REQ] Non homogenous absobtion medium

[Deus]

In my eternal strife for realism i would like to be able to render some transparent materials with some absorption (fog, smoke etc) and for that it would be nice to be able to have "interpolated" absorption values. Specifying a voxel field or similar with absorption at each vertex and interpolated values in between.

To my understanding this is not possible today but it would be most welcome

(I understand it involves some integral work etc but still it would be cool )

[CTZn]

Specifying a voxel field or similar with absorption at each vertex and interpolated values in between.

A particle based approach has been suggested already, for the same result (based on density of particles). Particles are more commonly shared amongst apps, unlike voxels.

Being used with 3d textures, I'm still waiting for these (blended) procedural babies for Indigo

[Deus]

I know CTZn i took part of that discussion if you remember. What i would do is a simple fog from ground up with highest density fog at bottom and no fog at top with a clean fade in between. I dont want to use 5 giga particles I want to use one cube

[zsouthboy]

....

What about blend between two mediums, for that case, Deus?

Or does that not work? I can't remember.

[Deus]

No unfortunately not. I want a smooth interpolated transition.

[OnoSendai]

This is definitely on the TODO list

[Deus]

Good good

[CTZn]

I know CTZn i took part of that discussion if you remember.

Oh, ooops

What about blend between two mediums, for that case, Deus?

Or does that not work? I can't remember.

Yes, sure zsouthboy... and how would you provide the volumetric data for the blend hehe... we're back to the starting point again

[edit] the precedence system is the best solution for now...

[Kram1032]

atm, just a really highpoly mesh could solve that, but noone will get it realistic, except using a generator, or something like that.