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Bifrost Feather Generator Tool

28 REPLIES 28
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Message 1 of 29
sachin.shrestha
5137 Views, 28 Replies

Bifrost Feather Generator Tool

Hi folks,

 

Somebody asked me in my webinar last week if it was possible to generate feathers in bifrost. Here is an example of that. I am also attaching my example file for people to study and build on top of. You could add another layer of barbule strands to the barbs and generate even more detail. The setup is a couple of hours work so I'm sure it can be improved a lot more.

 

 

Scene File Details:

Maya 2020.4

Bifrost 2.2.0.1

MJCG and Rebel Pack Required

Scanned for Maya malware and none found.

 

Have fun!

 

Cheers,

Sachin

Labels (1)
28 REPLIES 28
Message 2 of 29

Great job

Message 3 of 29
mihirsbcc
in reply to: sachin.shrestha

Nice work Sachin

Message 4 of 29

And now with barbules growing on barbs.

 

 

Updated maya scene file attached. It might be messy noodles but hopefully it shows you how to create something like this.

 

Naya 2020.4

Bifrost 2.2.0.1

Required compatible MJCG and Rebel Pack compounds.

# Autodesk.MayaScanner : Scan completed: no issues found

 

Cheers,

Sachin

 

Message 5 of 29
mihirsbcc
in reply to: sachin.shrestha

Hi Sachin, Which version MJCG ? I have 1_3_2 . I am getting error (disconnected nodes) when I open your scene.

I have rebel pack 0.4.

Thank you.

Message 6 of 29
sachin.shrestha
in reply to: mihirsbcc

Rebel Pack 0.4.0 and MJCG 1.3.2 should work. Some other users have been able to open the file without any issues after they installed those packs. So, maybe something else? Can you post a screenshot of the error? And also, when you start Maya and it loads bifrost, it outputs a log on the script editor with some info about loading bifrost and its compounds. Can you also share those messages?

 

Thanks,

Sachin

Message 7 of 29
mihirsbcc
in reply to: sachin.shrestha

Thanks Sachin. I do have both rebel pack 04 and MJCG 1.3.2. I will take
some screenshots and post them.
Message 8 of 29
mihirsbcc
in reply to: mihirsbcc

Fixed my compound folder and it is working now.

Message 9 of 29
mihirsbcc
in reply to: mihirsbcc

I fixed my problem. It is working now.

Message 10 of 29
mihirsbcc
in reply to: sachin.shrestha

You mentioned about your webinar. Can I join your webinar?

Message 11 of 29
sepu6
in reply to: sachin.shrestha

Message 12 of 29
mihirsbcc
in reply to: sepu6

Awesome webinar Sachin. I am glad that you gave a demo of your terrine carving.  Can I email you some times? I am in US. Started my 3D instructor carrier20 years back at Prasad Video Digital in Chennai.

Message 13 of 29
mihirsbcc
in reply to: sachin.shrestha

Awesome webinar Sachin. I am glad that you gave a demo of your terrine carving. Can I email you some times? I am in US. Started my 3D instructor carrier20 years back at Prasad Video Digital in Chennai.

Message 14 of 29
vnvnvn007
in reply to: sachin.shrestha

When I render it on Arnold, There are no barbs. I can see the barbs in view port. But I can't see it in final render view. 
How can it be fixed.

Message 15 of 29
sachin.shrestha
in reply to: vnvnvn007

I had reported this to Arnold folks and they confirmed it was a bug. Not sure if it got fixed in the latest release as I haven't tested this yet but you could try with the latest arnold and bifrost versions.

Message 16 of 29
mihirsbcc
in reply to: sachin.shrestha

Renders only the main strands, not the micro fibers. Latest Arnold.

Message 17 of 29
sachin.shrestha
in reply to: mihirsbcc

In that case, most likely it's not fixed yet.

Message 18 of 29
valhallen
in reply to: sachin.shrestha

Awesome work! 

Message 19 of 29

It looks like those barbs are not rendering because there are a few NANs in there. 

 

The easiest way to test for a NaN in programming is by checking if it's equal to itself. Every comparison with a NaN in floating point numbers is false, so a NaN is not equal to itself. (Note - do not use "not equal", since every comparison with a NaN is false.

 

I've attached a compound that finds NaNs in point positions and sets them to {0,0,0} as an example. 

Jonah Friedman
Bifrost Product Manager
Message 20 of 29

Yes, the arnold logs did report NaNs but I think the part that trips me up is that bifrost is able to compile the graph whereas the arnold procedural fails (rightly so in case of NaNs). Would be good to have consistent behavior across both to detect issues while building the graph.

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