VDB emission in Octane Blender

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Blakil
Posts: 1
Joined: Fri May 29, 2020 8:03 pm

Hello. I am writing here, because the forum for the free plugin is in the paid section, lol.

I found it impossible to make an explosion from a VDB file. That is, the density works fine, but Blender ignores the temperature specified in the emission. I tried to change a lot of settings, such as emission scale, or a combination of different types of emission in materials. But I despaired, nothing helps. Here are screenshots of what I had. Explosion taken from OpenVDB Sample Section.

Image

Image
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bepeg4d
Octane Guru
Posts: 10393
Joined: Wed Jun 02, 2010 6:02 am
Location: Italy
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Hi,
the easiest way to control the volume emission is to connect a white Texture Emission node, with power at one, and then use a Volume Gradient connected to the Emission Ramp, to control the coloring.
There is also a Max Value in the Volume Gradient to control the intensity.

ciao Beppe
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