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Bifrost MJCG extrude strands doesn't work

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Message 1 of 7
daniel.jankolovski
606 Views, 6 Replies

Bifrost MJCG extrude strands doesn't work

I am following a tutorial from Maya Guy on youtube. He plugs create_particle_trails in extrude_strands, but when i repeat the process i just get the curves of the trails just like the node does not exists. Any tips ?

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6 REPLIES 6
Message 2 of 7
mjcg91
in reply to: daniel.jankolovski

This is an old version of the compound, which requires the strands orientation to be computed before.

Please update to the latest version of MJCG compounds. extrude_strands can be directly on strands and is faster.
https://gumroad.com/l/mjcg_compounds_2_0_0 

Maxime Jeanmougin - Technical Artist
https://maximejeanmougin.com

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Message 3 of 7
daniel.jankolovski
in reply to: mjcg91

Thank you ! that worked like a charm.

Message 4 of 7
daniel.jankolovski
in reply to: mjcg91

Hi, I've hit another roadblock regarding the same extruded strands. They are not appearing in the render, what am i missing ? @mjcg91 

Message 5 of 7
mjcg91
in reply to: daniel.jankolovski

Hmm, Difficult to say without having more informations. The other mesh seems to render fine so the Arnold version should be compatible. 

are there any error / warning in the render logs? Can you share a simple repro scene?

Maxime Jeanmougin - Technical Artist
https://maximejeanmougin.com

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Message 6 of 7
daniel.jankolovski
in reply to: mjcg91

I think i found what the problem is although i'm not sure what is happening since i just stared using bifrost. When i uncheck Spatial Resample in resample_strands it show up in the render. Is there a way around it ?

 

Edit : There were no errors

Message 7 of 7
mjcg91
in reply to: daniel.jankolovski

I'm not sure what's going on. perhaps two successive points share the same positions in the strands. This would impact the basis vector generation of the strands and could potential fails. 

I'd just leave Spatial resampling OFF. or you could use a second resample node with spatial resampling ON. maybe it should fix it.

Maxime Jeanmougin - Technical Artist
https://maximejeanmougin.com

Join the Bifrost Addicts community on Discord:
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