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Re: clarisse doodles

Unread postPosted: Tue Dec 13, 2016 6:41 pm
by byvfx
wow really love these pieces great work!!

Re: clarisse doodles

Unread postPosted: Tue Mar 21, 2017 10:03 pm
by Germanobanano
haven't posted in a while so here is a quick test I did on Sunday. I have to render sequences more often!

the ocean is just a single frame mesh export from Houdini. It kinda works since the camera moves so fast. I've been looking into oceans and with some of the tips I've gotten from you guys, next version will look better!

can't get the embed to work :oops:

Re: clarisse doodles

Unread postPosted: Sun May 28, 2017 12:10 am
by meryon
Hi !

I think about your planet atmosphere in the first page of this topic. How do you manage the fall off ?

I linked a sphere mesh to a volume surface. A gradient on the density multiplier produced weird effect.

How do you proceed ? Thanks !

Re: clarisse doodles

Unread postPosted: Tue May 30, 2017 3:02 pm
by Germanobanano
hey, do you mean a stepping effect when you say weird? I'm getting something similar, don't know if its a bug, will have to try a bit more.

The first images where done with the legacy raytracer and I honestly don't remember all the details. I've been wanting to do an earth tutorial for a while but here are some tips in the meantime:

- use the "distance to object" with a locator and a gradient. that way you can map the density to a box volume
-volume effects look nicer but take longer to render, 3d layers and "fakign it comp" works best for speed
-if you want more realism, try multiple volumes. one for mie scattering , one for rayleigh. they have different values
-you can get nice clouds using "volume from surface", using a dispalced mesh as the surface (this is one of the cools things I want to do the tutorial about)

Re: clarisse doodles

Unread postPosted: Mon Jun 05, 2017 1:11 am
by meryon
Thanks Germanobanano !

I will try that. :)

Re: clarisse doodles

Unread postPosted: Mon Jun 05, 2017 1:46 pm
by xilofoton

stepping effect is usually caused by the sampling default setting in the volume object. If you somehow make the density uneven, you should raise the step attributes in the sampling section. The step size mode makes more "human readable" as you can easily set the minimum size of the details you need in metric units.

Re: clarisse doodles

Unread postPosted: Wed Jun 14, 2017 4:39 pm
by Germanobanano
thanks Xilofoton. I'll have a look at the scene and report back