I am saving out a combination of geo and particles. Geo started from frame 1 and particles start at frame 150 but when I cache out the alembic and import into 3dsmax or Blender The particles are there from from the first frame frozen. They start moving at the correct frame but they should die out by frame 200 and they just freeze. The particles have been meshed as fluid and cached. When I load this alembic back in Houdini it plays fine though.
How can I just make them appear on frame 150. I tried using a null in the stream till frame 149 but that didnt work. Also tried toggling save all non displayed geo.
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Technical Discussion » Alembic not respecting particle start frame
- jumax
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Mardini 2024 » Day 12 | VFX | Vellum Configure Grains | Animation
- jumax
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Mardini 2024 » Day 6 | Lookdev | Material Linker | Image
- jumax
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Mardini 2024 » Day 2 | Geometry | Topobuild | Animation
- jumax
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Mardini 2024 » Day 1 | Geometry | Spiral | Animation
- jumax
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Solaris and Karma » Displacement Splitting geo
- jumax
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Thanks mate that looks like a good solution. I read somewhere that using names was better than groups that why I went down that route.
Solaris and Karma » Displacement Splitting geo
- jumax
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Hello,
I have a single object which is split into groups and 2 different materials are applied. When I add displacement the geo splits along the group seams. Is there a way to stop that. In Vray for example there is a keep continuity option.
I have attached a simple file that shows this.
Thanks
I have a single object which is split into groups and 2 different materials are applied. When I add displacement the geo splits along the group seams. Is there a way to stop that. In Vray for example there is a keep continuity option.
I have attached a simple file that shows this.
Thanks
Solaris and Karma » Karma XPU noise
- jumax
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I have tried it at 4096 samples it took like 30-40 mins and the result weren't getting better, its pretty slow if it can't resolve in that time. Its a pretty basic scene. I guess with XPU have to use the denoiser. I am running a render with 50k samples lets see what that does,
Solaris and Karma » Karma XPU noise
- jumax
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I am trying with the light tree turned off but its not looking promising, at 2 mins its still pretty grainy. I dont understand why it wont clear up with super high samples and taking so much time.
Solaris and Karma » Karma XPU noise
- jumax
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Hi Brian
I have tried various lighting setups and shaders, with and without dispersion but it seems XPU is not capable to remove noise without denoiser. I am trying to understand how the settings work so I am not using the denoiser at the moment.
In the attached image have 512 path traced samples and 6 light samples even after 9 mins there is no resolution. in the previous examples I let it run for 30 mins and there was not enough improvement.
I have tried various lighting setups and shaders, with and without dispersion but it seems XPU is not capable to remove noise without denoiser. I am trying to understand how the settings work so I am not using the denoiser at the moment.
In the attached image have 512 path traced samples and 6 light samples even after 9 mins there is no resolution. in the previous examples I let it run for 30 mins and there was not enough improvement.
Edited by jumax - Feb. 26, 2024 02:13:22
Solaris and Karma » Karma XPU noise
- jumax
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Solaris and Karma » Karma XPU noise
- jumax
- 74 posts
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Solaris and Karma » Karma XPU noise
- jumax
- 74 posts
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Solaris and Karma » Karma XPU noise
- jumax
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Solaris and Karma » Karma XPU noise
- jumax
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I am trying to render something in Karma XPU and I can't seem to get rid of the noise. Just for a test I left it running with super high pathtraced samples and reflection and refraction limit and as you can see at 30 mins I am still getting noise on the edges of the bottle. I know I can use the denoiser but I am trying to understand the settings a bit.
Technical Discussion » Forcing Particles to Follow a Path Dynamically
- jumax
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Solaris and Karma » Karma sampling Pixel Oracle?
- jumax
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The karma help about sampling has all this stuff about variance and uniform pixel oracle where are those settings in H20? Is there no noise threshold for sampling?
Solaris and Karma » Foam displacement
- jumax
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Hi
I am using the ocean surface shader on a flip sim with whitewater, Its working great for the most part but I have a couple of frames where section of the foam just explodes, anyone have experience with this. Using Karma CPU and Houdini 20.
I am using the ocean surface shader on a flip sim with whitewater, Its working great for the most part but I have a couple of frames where section of the foam just explodes, anyone have experience with this. Using Karma CPU and Houdini 20.
Technical Discussion » Forcing Particles to Follow a Path Dynamically
- jumax
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Its tricky to balance forces with the particle on a curve, have you tried adding a drag or increasing the air resistance on the pop wind rather than increasing the amplitude. it does work but it takes a while to balance the settings.
Technical Discussion » Can the Floating gnomon be scaled bigger?
- jumax
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