Smoke Simulation does not show in my scene. Why?

Support Particles and Physics Simulations
1

Hey,

I took on a new project recently on making a Pulsar. I took inspiration from Sardi Pax’s “How to create the Sun In Cycles” tutorial, but, as always happens when I experiment with something I don’t know, I got stuck.
Here’s a few images of Pulsars (artist conceptions ofc):

http://hd.wallpaperswide.com/thumbs/pulsar-t2.jpg

I managed to add particle systems for simulating the accretion disk and the small emission streams at the poles. However, after setting up the smoke simulation, and the volumetric absorb and scatter shaders, and adding the material attribute node, it still doesn’t show the smoke, instead the domain goes completely transparent. Help?

http://i.imgur.com/atlvjHil.png

I’m using -
Blender 2.74
Win 32 bit
8 GB RAM
GTX 750Ti Graphic Card
Cycles render engine

Thanks in advance,
Cheers!

2

After a lot of tweaking, I finally managed to create both part of my pulsar with particles.

http://i.imgur.com/aMk6yacl.png

EDIT: Added Smoke simulation but it doesn’t show up. huh?

3

Here’s the .blend file:
http://www.pasteall.org/blend/35500

4

Edit : Sorry, not fixed, it still doesn’t render in cycles :confused:

5

a) you have no domain
b) you can’t render smoke on gpu, only cpu

6

Erm the sim has domains, but… there’s two of them. You see, I wanted two different types of simulations, so I created one inflow object and two domains and baked.

But I feel I have not explained it clearly. You see, after baking both sims, they show up in the viewport just fine. But they don’t show up in rendered view. You’re right about it not rendering on GPU if I have the “supported” feature set. But, I think volumetrics can be rendered on the GPU in the “experimental” feature set right?

7

In the blend you posted you have 4 objects. a camera, 2 force fields, and an icosphere inflow object. 0 domains.

Procedural volumetrics can be rendered with gpu experimental, smoke cannot. You can only use cpu for smoke (now)

8

Ah, my bad. Sorry, I must have added the domains later then.

Thanks for the help. I tried using CPU instead and it renders perfectly (but ridiculously slow) :frowning: I assumed that if it supported rendering procedural volumetrics on the GPU, it’d support smoke, which I guess is incorrect. Thanks for clearing that up. Problem solved…

Cheers!