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Technical Discussion » Will Karma XPU support mixing more than two MtlX materials?
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- habernir
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Long time they have this limitation and I want to ask the dev team can you tell us when it will be resolved?
Houdini Lounge » Karma XPU in Vulkan viewport less responsive than opengl
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- habernir
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briansOk thanks for this info
Others have found this too
https://www.sidefx.com/forum/topic/92993/ [www.sidefx.com]
https://www.sidefx.com/forum/topic/92993/#post-428314 [www.sidefx.com]
Its been bug-reported and internal investigations are underway
Soo we need to wait to the next stable point release.
Houdini Lounge » Karma XPU in Vulkan viewport less responsive than opengl
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- habernir
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Does anyone notice thats karma XPU with Vulkan viewport its less responsive than karma XPU with opengl viewport?
in heavy scenes you can easly notice that.
***my OS its windows 11
in heavy scenes you can easly notice that.
***my OS its windows 11
Edited by habernir - Aug. 22, 2024 01:59:44
Houdini Lounge » Houdini 20.5 is out for grab!
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- habernir
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Houdini Lounge » 20.5 sneak peek is here!
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- habernir
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Sygnum
Does anyone know when 20.5 will be released? They said July but not the date...or did I miss that?
they said middle july soo next week
Houdini Lounge » 20.5 sneak peek is here!
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- habernir
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Soothsayerwhat about substance ?
Bye bye Nuke!
Edited by habernir - June 14, 2024 02:49:52
Houdini Lounge » 20.5 sneak peek is here!
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- habernir
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Houdini Lounge » Houdini 20.5 Rumors
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- habernir
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Boning
Looking forward to see the new COPs networks to be GPU accelerated and with capability of integrating AI models
How do you know that's its a new cops networks?
Houdini Lounge » Houdini 20.5 Rumors
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- habernir
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well its look like houdini will be released on mid july ,
anyone know what area is copernicus feature related to? ? vfx? animation? rendering? AI?.....
anyone know what area is copernicus feature related to? ? vfx? animation? rendering? AI?.....
Edited by habernir - May 29, 2024 05:46:46
Houdini Lounge » Karma Xpu our-of-core in windows vs linux (strange behavior)
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- habernir
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brians
On Windows, Microsoft/NVidia have implemented a way for Optix GPU memory to "spill over" to main CPU memory.
https://nvidia.custhelp.com/app/answers/detail/a_id/5490/~/system-memory-fallback-for-stable-diffusion [nvidia.custhelp.com]
There is not a lot of documentation or info about this feature, but we have formally asked NVidia to give us more and they're working on it. One thing we know is that it doesn't work if there are two GPUs in the machine.
you can disable the feature by setting the "CUDA system fallback policy" to "Prefer No Sysmem fallback" in the NVidia control panel. Once you have done that then windows and linux should behave the same.
well i just test a large scene with 2 gpu and karma xpu in windows working perfectly , both gpu doesn't failing
but in ubuntu gpu it failed easly again.
soo i'm guessing thats this feature work also with 2 gpu? if not then I have no idea why its happening (and i dont have problem with this situation because its not failing and the rendering is faster but i want to know out of curiosity why its happening).
by the way with this feature even if the driver send data to the CPU memory the rendering in xpu in windows its always faster then in linux when the gpu failing in linux.
Edited by habernir - May 2, 2024 14:35:29
Houdini Lounge » How to create Different Rotation each uv tile?
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- habernir
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Hello
I have tiled uv
But I want to create different Rotation each uv tile in vop , how do I do it?
I have tiled uv
But I want to create different Rotation each uv tile in vop , how do I do it?
Houdini Lounge » Houdini in Ubuntu 24.04 ?
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- habernir
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ubuntu 24.04 will be released soon soo anyone try houdini in ubuntu 24.04?
i'm asking because it crashing all the time
i'm asking because it crashing all the time
Edited by habernir - April 20, 2024 04:59:38
Houdini Lounge » Karma Xpu our-of-core in windows vs linux (strange behavior)
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- habernir
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i just try to test kamra xpu and i'm notice that if i render the same scene (large scene) in linux and windows It behaves differently
in windows both cpu & gpu working
and in linux the gpu failed
i test it in a few scenes (also very large scene) and all of them are the same (in linux it failing and in windows it working)
(I guess it will be like that for everyone)
why in linux its failing and in windows not? its the same vram .
and if its the nvidia windows drivers why its happening?
( i have 4090+3090)
in windows both cpu & gpu working
and in linux the gpu failed
i test it in a few scenes (also very large scene) and all of them are the same (in linux it failing and in windows it working)
(I guess it will be like that for everyone)
why in linux its failing and in windows not? its the same vram .
and if its the nvidia windows drivers why its happening?
( i have 4090+3090)
Edited by habernir - April 5, 2024 15:01:12
Houdini Lounge » Collect node
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- habernir
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hello
if i have "principled Shader" and "materialx" connected to "collect" node
how do i force karma CPU to use "principled Shader" when both "principled Shader" and "materialx" connected to "collect"?
because its always using materialx
if i have "principled Shader" and "materialx" connected to "collect" node
how do i force karma CPU to use "principled Shader" when both "principled Shader" and "materialx" connected to "collect"?
because its always using materialx
Houdini Lounge » A Comprehensive Feature List Between Karma XPU + Redshift
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- habernir
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tbay312
Thanks everyone for the feedback - There's a lot of ground to cover with this kind of video, so getting lots of smart eyes / minds on it is always helpful. The final video can be found here:
Cheers,
- Tyler
i have a few question
as you know the main use of houdini its in large/huge vfx scenes thats a lot of studios are doing soo so why not take their comments in addition to your students?
Also after i mention that alot of studios using houdini for large vfx scenes ,
you compare redshift against karma with a simple scene and you forgot big big issue soo what happen if you have only 16/20/24gb vram card and you have large scene? In this situation do you still preferred to use redshift?
and how redshift handle large scene compare to karma xpu/cpu or arnold?
and one more question and i guess alot of people want to ask you , can you make redshift vs arnold review?
Edited by habernir - March 28, 2024 03:22:17
Houdini Lounge » A Comprehensive Feature List Between Karma XPU + Redshift
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- habernir
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nice comparison but their is a subjects that i dont understand like features "non usd" or "rs proxy" or "material x" ..... thats not related to the comparison because xpu will never have rs proxies and its always will be for usd (i think)and also karma XPU was built with material x support from the ground-up soo no need to mention it.
and you compare "hybrid rendering" soo how can you compare karma XPU that was built from the ground-up for multi-devices to redshift ? its a two different worlds
but isn't the comparison too early? because XPU is relative new
and you compare "hybrid rendering" soo how can you compare karma XPU that was built from the ground-up for multi-devices to redshift ? its a two different worlds
but isn't the comparison too early? because XPU is relative new
Edited by habernir - March 12, 2024 03:01:39
Houdini Indie and Apprentice » Uncontrollable camera with MMB Pan (keep pivot for pan?)
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- habernir
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can sidefx team fix this small issue?
because the viewport performance differences between mesa and amd drivers in houdini are BIG (with the lastest mesa version).
the mesa drivers are much much faster than amd drivers .
because the viewport performance differences between mesa and amd drivers in houdini are BIG (with the lastest mesa version).
the mesa drivers are much much faster than amd drivers .
Houdini Lounge » How do i control the number of repeat tiling in mtlx
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- habernir
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jsmackhabernir
but i want to control the number of repeat in the u direction (i want for example do make 2,3 or 4 lines....)
There is no built in mechanism for this. You'll have to get out the math and do it yourself. The clamp node can be used to clamp the scaled u and v values to the desire maximum
thanks. i already know about clamp but i forgot that there is mtlx clamp and thats solved my problem in mtlx
Edited by habernir - Dec. 17, 2023 15:47:49
Houdini Lounge » How do i control the number of repeat tiling in mtlx
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- habernir
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Enivobthanks for your answer but the mtlxTiledImage its just tiled rate in uv direction and the Realworldsize just control the size of the single square ( am i wrong?)
Use a mtlxTiledImage node and increase the Realworldsize to introduce more copies.
this is the result
i want to control the number of repetition in the u direction
in mtlxImage i make
U Address Mode: periodic
V Address Mode:Constant
and the result its repeating along the u direction like this
but i want to control the number of repeat in the u direction (i want for example do make 2,3 or 4 lines....)
thanks
Edited by habernir - Dec. 17, 2023 10:58:28
Houdini Lounge » How do i control the number of repeat tiling in mtlx
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- habernir
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i have simple question
how do i control the number of repeat tiling in mtlx?
thanks ,nir
how do i control the number of repeat tiling in mtlx?
thanks ,nir
Edited by habernir - Dec. 17, 2023 08:41:40
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