Any plans to port some of the Max Phoenix tutorials over to Maya?

[hunter_williams]

I keyframed the Discharge value to be higher starting out and then drop to a lower value as well:

[Svetlin.Nikolov]

Oh, you are using volume inject in the source - I would rather use Surface Force to drive the smoke away from the missile, although indeed at the speed the missile itself shoots up, the smoke could just be standing still and it won't make a visible difference.

I think with the fast movement of the rocket mor than 1 steps per frame would work better for creating a smoother trail, otherwise it would break up into separate puffs. Try using 2 or even 3 steps per frame - the 3ds Max tutorial uses 2, but Max defaults to 30 FPS, while for 24 FPS in Maya 3 might be better.

The Smoke itself is quite curly in your references and they look different than the 3ds Max tutorial, so I suggest you add more Randomize Amount from the Dynamics rollout. You've managed to get a good wide base smoke from the missile - in the 3ds Max tutorial it's much more narrow.

I roughly recreated the 3ds Max missile setup in Maya using nParticles as an emitter - it creates fast particles from the nozzle of the missile and they die after about a frame. In 3ds Max there is also a Phoenix Plain Force used to blow the smoke in a certain direction, so you might want to add this as well if you need it. Also note that my Maya setup is in meters (nParticles don't care though, their options still need to be set in centimeters, like the velocity).

SLBM.zip



Cheers!

[hunter_williams]

Hey thanks for making a Maya version. Unfortunately I get errors when trying to open it:





I'm using :

Maya 2022.2
V-Ray 6.00.02
Phoenix FD 5.01.00

[Svetlin.Nikolov]

Oh, some of these are the mandatory Arnold errors, and the Phoenix ones are about new options we've added to the nightlies - you should be able to safely ignore them and run the sim anyway.

One thing I wanna have a look at - if you get issues with the nParticle emission, try turning off the Cache Playback Maya option.

[hunter_williams]

Yes, turning off the Cache Playback seems to of fixed that issue. Thank you for the Maya scene to explore!

[hunter_williams]

Created a new scene based off of the scene you shared:



Two questions:

-How do I increase amount of flame shown?

-This render took about 3 minutes to render at 960x540. Any tips on how to reduce the render time?

[Svetlin.Nikolov]

Yay!

If I remember correctly, the Colling under the Dynamics rollout was set super high - try lowering it.

As for the render times, there are many things you can do - we summed them up in this page - it's long, but it's quite exhaustive: https://docs.chaos.com/display/PHX4M...ering+In-Depth

[Svetlin.Nikolov]

One thing I wanna have a look at - if you get issues with the nParticle emission, try turning off the Cache Playback Maya option.

Ah, of course creating an nCache with the nParticle node would fix that, but still - the Cached Playback must be off while the nCache is being created. Not sure what is the recommended Maya workflow for this, as it seems more like an nParticles issue. Or perhaps Bifrost should replace the nParticles from now on...

[hunter_williams]

Thank you for your help.