Forums Technical Discussion black render when rendering Fire KARMA CPU

black render when rendering Fire KARMA CPU

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chatofking
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why when I render using karma CPU I get an empty output
but when I render using Mantra render are works fine
I have already tried following this video but won't work

here is my render output.
Edited by chatofking - Jan. 5, 2024 07:25:20

Attachments:
Capture131.PNG (383.2 KB)
Capture131.1.PNG (888.0 KB)
Capture131.2.PNG (48.7 KB)
Rendering Fire And Sparks.hipnc (1.9 MB)

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Enivob
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A few things wrong in your setup. You can't use mantra materials to render with Karma. What's going on in your setup, however, is you have a mantra material on sparks, and a pyro bake on your fire. The pyro bake is only for the viewport, not final rendering. You'll have to add a volume shader to render a material for your flame.

There is a SideFx tutorial called "A Beautiful Game" which has a volume shader you can use. Visit the tutorial section of this site and pull down the files to take a look. Check out part #8.
Edited by Enivob - Jan. 5, 2024 09:23:45
Using Houdini Indie 20.0
Windows 11 64GB Ryzen 16 core.
nVidia 3050RTX 8BG RAM.
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chatofking
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I already have pyro shader & principled shader inside the material library also pyrobake is already skipped to Fire1 as you can see why is my render still empty?
Edited by chatofking - Jan. 6, 2024 20:31:16

Attachments:
Capture137.PNG (881.8 KB)

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tamte
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there is no camera on your stage
Tomas Slancik
FX Supervisor
Method Studios, NY
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