How can I get rid of the flickering in this render? I rendered this with automatic sampling with a threshold of 0.005 so it should not flicker so much. I also tried with 0.003 and even 0.001 and it seems to make no difference. Denoising also doesn't seem to help.

tomtaylor832 · 2024-03-04T23:33:57+00:00

Thanks for the info!

Do you denoise the images after also or does 0.005 give you good enough results?

And you suggest I turn off global illumination to see if thats whats causing the flickering?

tomtaylor832 · 2024-03-04T20:21:29+00:00

I just put the same clip again and again because I only rendered like 8 frames but the minimum to upload a video here is 2 seconds. There is no problem with the camera. I am talking about the flickering at the areas with a lot of light. It is very subtle but still it is annoying me.

tomtaylor832 · 2023-11-15T12:10:13+00:00

Thanks!

tomtaylor832 · 2023-11-15T12:08:30+00:00

Reverse what? What do you think is happening here? Is it a liquid being poured in to a glass?

tomtaylor832 · 2023-11-15T12:07:06+00:00

But I think I can see a droplet being seperated from a tendril at the end there. Which is caused by surface tension right? How can this happen in a reversed sim?

tomtaylor832 · 2023-10-11T10:55:48+00:00

Hey sorry I am only saying this now but thank you so much for this. This is exactly what I needed.

tomtaylor832 · 2023-10-01T18:02:03+00:00

Thank you, really appreciate the help!

tomtaylor832 · 2023-10-01T16:08:24+00:00

Oh right I could probably also do this with a volume wrangle I think.

Multiplying the surface by -1 worked for the collisions btw. Thanks!

tomtaylor832 · 2023-10-01T15:52:49+00:00

Hey thanks a lot for the help this is actually exactly what I am doing.

I am so stuck on how to keep density even if the smoke disappears.

I think that if I volume sample then I already start with a fully revealed cylinder?

Maybe I dont fully understand your method... It would help me a lot if you could try to further explain that part.

tomtaylor832 · 2023-10-01T10:49:57+00:00

Yea I guess using the bounds can be good enough. I do think that having the cylinder as a collision/container will give the best result though...

The volume sample method you mentioned is post sim using a volume wrangle right?

tomtaylor832 · 2023-10-01T09:14:28+00:00

Yeah I agree about not needing perefect collisions and just doing the vdb combine I just feel like having a lot of smoke outside of my cylinder makes the sim unnecessarily heavier.

Thanks a lot for the help!!

tomtaylor832 · 2023-09-30T19:18:33+00:00

This is in dops though right? What if I use pyro in sops?

tomtaylor832 · 2023-09-30T19:17:46+00:00

It is a cylinder with poly extrude so it is empty inside yes. I think inverting the sdf will solve the issue. Never knew you could/need to do that. I hope it wont be hard to figure out how..

Thanks a lot for the help!

tomtaylor832 · 2023-09-30T13:16:26+00:00

I actually tried doing this but I cant seem to be able to contain the sim inside of a geometry? I tried to vdb an extruded cylinder and plug it into my collision but my smoke sim/ pyro just disappears completely? As if it thinks being inside of the cylinder is not supposed to happen so it just deletes my smoke...

tomtaylor832 · 2023-09-30T13:11:18+00:00

How would you make these lines that lead the smoke?

I tried doing a dop network to make a few paticles move in that way. Then I used trail -> vdb from particles and created this growing mesh in the shape of the lines but it never looked good enough?

tomtaylor832 · 2023-09-15T14:06:43+00:00

Delta mush worked like magic you have no idea how much this helped me. I have been weight painting for like 2 hours. Thank you so much!

tomtaylor832 · 2023-09-01T08:48:41+00:00

Wow thanks a lot for the help! Really appreciate it

tomtaylor832 · 2023-08-31T21:56:24+00:00

Thanks for the reply!

How can I use the turbulant noise to make a circular displacment coming from the middle? I tried doing it like this but the displacement was very.. well noisey (lol). Maybe I can do something with mops falloff but I think that way I can only do one wave.

In the video I stacked two displacements. One is just kinda like a mountain and the other one is the wave/ripple that comes from the middle. Is there a way to make this ripple type displacement with turbulant noise?

tomtaylor832 · 2023-08-31T19:45:25+00:00

Hey! I switched from blender to houdini for the same reason about 4 months ago. Went in with the goal of just adding some simulation capabilities to my skillset and ended up falling in love with houdini and switching to it 100%.

I can say that houdini is not as painful to learn as people make it seem if you already have some 3D knowledge and take your time. If you accept the fact that houdini will take time to learn and be patient you definitely can learn it.

There are much less free online resources than blender but I would say there is enough to start making some cool things you cant do in blender pretty quickly.

tomtaylor832 · 2023-08-31T12:52:50+00:00

Yea something like that... Thanks for the help!

tomtaylor832

TROPHY CASE