Abdelkrim Ibrahim

Abdelkrim

About Me

Expertise
Not Specified
Location
Not Specified
Website

Connect

Recent Forum Posts

Flame not showing in render but it's visible in viewport Nov. 21, 2020, 10:09 a.m.

Hello;

I recently made a Pyro simulation using sparse solver.

I cached the simulation to disk then I imported it. Then I used volume visualization node to assign colors in the view port.
I assigned a pyro shader for the volume.

When I scrub through the final frames of the simulation and render the current frame, I get an empty frame in the render meanwhile I get some flames in the view port.
At the beginning, everything is OK, the result in the view port is similar to the render.

How can I get some flames when I render those frames?

Thanks in advance.

Smoke simulation Upres artifacts (blocs and rectangles) Sept. 24, 2020, 4:02 p.m.

Enivob
That's the result of shredding and pushing your density shader too high.
Thanks for pointing this out.

Smoke simulation Upres artifacts (blocs and rectangles) Sept. 23, 2020, 4:03 a.m.

I have set a low resolution smoke simulation using “Pyro Solver (Sparse)”. The desired shape of the smoke is obtained with “Voxel Size = 0.05” (relatively a low resolution).
When I increase or decrease the “Voxel Size” I get something unwanted.
When I increase the“Voxel Size”, the smoke expands more. When I decrease it the smoke contracts.

As you can see in the attached picture, the blocs and rectangles.


So I cached the simulation at that resolution (“Voxel Size = 0.05”), then I increased the resolution of the simulation, following this tutorial.
Sparse Pyro Upres, the easy way. [vimeo.com]

I increased the resolution of the simulation by setting the “Voxel Size = 0.02”.

I thought that after doing an “Upres” for the simulation this would get rid of those artifacts.
Well, the overall resolution of the simulation is increased however I still have some of the artifacts in the final render.
As you can see in the attached screenshot.

So how to get rid of those artifacts and obtain a smooth and clean smoke shape?

Thanks for your help.