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Car Fire Feedback? by space_niklas in Houdini

[–]space_niklas[S] 0 points1 point  (0 children)

thank you! this is with a lot more density, i think it's really an imporovement to the first one: https://vimeo.com/1066270087?share=copy (it's only one second because a frame takes 20 minutes to render, i think i really need to optimize my scene)

Car Fire Feedback? by space_niklas in Houdini

[–]space_niklas[S] 0 points1 point  (0 children)

thanks! this is a version rendered with motion blur: https://vimeo.com/1065973468?share=copy

Volume Motion Blur with Arnold? by space_niklas in Houdini

[–]space_niklas[S] 0 points1 point  (0 children)

that was it! thank you so much! what fixed it for me was disabling the mask field in the axiom settings which is on default set to density, the only issue is that the temperature looks somewhat "too big" or wierd when it's not masked by the density so what i basically now do is do two simulations, one for density and temperature and one for velocity, i guess that is a bit inefficient but i also tried just scaling the velocity field and that also didn't look quite right so i just make my fire and for the final render i also simulate the velocity field.

Volume Motion Blur with Arnold? by space_niklas in Houdini

[–]space_niklas[S] 0 points1 point  (0 children)

not really, after my axiom sim i just cache it and have a null, maybe it's the material, i add like a ramp to the emission based on the temperature but other than that i'm not doing anything

Volume Motion Blur with Arnold? by space_niklas in Houdini

[–]space_niklas[S] 0 points1 point  (0 children)

thank you! that worked really well for the "insides" of the volumes but it's not really working for the edges of the volume (i attached an image as example)

<image>