I want to add my own custom variable to the file chooser, just like the default ones such as $HIP, $JOB, $TEMP. Is there an option to do this?
Thanks,
Dawid Wizor
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Houdini Indie and Apprentice » How to add custom variable to file chooser
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- Dawid Wizor
- 33 posts
- Online
Hello,
I want to add my own custom variable to the file chooser, just like the default ones such as $HIP, $JOB, $TEMP. Is there an option to do this?
Thanks,
Dawid Wizor
I want to add my own custom variable to the file chooser, just like the default ones such as $HIP, $JOB, $TEMP. Is there an option to do this?
Thanks,
Dawid Wizor
Solaris and Karma » How to make USD Preview Surface works with Houdini VK?
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- Dawid Wizor
- 33 posts
- Online
Hello,
I have shaders set up in Karma XPU for rendering. In the render everything looks good but displaying these materials in Houdini VK is strange. That's why I would like to set up a second shader USD Preview Surface and I would like to use it to display in the viewport and the main shader for rendering. Unfortunately I can't make it work in Houdini VK, in Strom everything works automatically if I put 2 shaders in subnet output or collect node and if one of them is USD Preview Surface, then it automatically knows to use it for the viewport. Does anyone have any idea how to set a different shader for the viewport and a different one for the render in Solaris?
Thanks,
Dawid Wizor
I have shaders set up in Karma XPU for rendering. In the render everything looks good but displaying these materials in Houdini VK is strange. That's why I would like to set up a second shader USD Preview Surface and I would like to use it to display in the viewport and the main shader for rendering. Unfortunately I can't make it work in Houdini VK, in Strom everything works automatically if I put 2 shaders in subnet output or collect node and if one of them is USD Preview Surface, then it automatically knows to use it for the viewport. Does anyone have any idea how to set a different shader for the viewport and a different one for the render in Solaris?
Thanks,
Dawid Wizor
Edited by Dawid Wizor - Jan. 22, 2025 06:50:55
Technical Discussion » Emit RBD pieces every frame with random attributes workflow
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- Dawid Wizor
- 33 posts
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Technical Discussion » Emit RBD pieces every frame with random attributes workflow
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- Dawid Wizor
- 33 posts
- Online
Hm I don't know how to achieve it, could you make some demo file? I don't know where can I find a solver that stores all the pieces from each frame? Because the one called "emission" returns the same piece as sourcing.
Edited by Dawid Wizor - Jan. 1, 2025 18:26:03
Technical Discussion » Sending subframes to Deadline
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- Dawid Wizor
- 33 posts
- Online
Hey, I know it's old thread, but could you say something more about this PDG on Deadline? I'm trying to figure it out, how to setup it?
Technical Discussion » Emit RBD pieces every frame with random attributes workflow
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- Dawid Wizor
- 33 posts
- Online
Hello, it's me again xD This method actually works in almost every case, except when using RBD SOP Solver, I assume it does something under the hood(there's a little offset of pieces). Maybe you have a way to make it work here too.
Technical Discussion » Emit RBD pieces every frame with random attributes workflow
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- Dawid Wizor
- 33 posts
- Online
Do you have any idea why this doesn't work in this scenario? Thas is, when i dont emit RBDs, just init pieces.
Technical Discussion » Emit RBD pieces every frame with random attributes workflow
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- Dawid Wizor
- 33 posts
- Online
Hey, I haven't checked this solution before, but now it would be useful to me. What is "transform" wrangle? Before checking I thought you meant about deformation wrangle but this code doesn't work here.
Technical Discussion » Emit RBD pieces every frame with random attributes workflow
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- Dawid Wizor
- 33 posts
- Online
Unfortunately not ;/ That's why I made this thread. Points from RBD sim don't take into account transformations made just before simulation and have an offsets on the pivot. Approach that npetit showed is fine, just in case I wanted to ask if it is possible to achieve good transforms with good point position after copy to poitns because this method moves points.
Edited by Dawid Wizor - Aug. 12, 2024 10:03:58
Technical Discussion » Determining on which object SOP Solver operates in DOP
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- Dawid Wizor
- 33 posts
- Online
Hello,
i have setup with two RBD packedobjects containers in DOPs. Is there any way to choose for which of these objects the SOP Solver should work?
Thanks,
Dawid
i have setup with two RBD packedobjects containers in DOPs. Is there any way to choose for which of these objects the SOP Solver should work?
Thanks,
Dawid
Edited by Dawid Wizor - Aug. 12, 2024 08:06:01
Technical Discussion » Emit RBD pieces every frame with random attributes workflow
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- Dawid Wizor
- 33 posts
- Online
Hey, i have one more question (your solution works perfectly but I'm curious if it's possible). After using method you showed using maketransform(), points change their positions and only after copy to points, everything looks as in RBD sim. I wonder if it would be possible to have a perfect representation of the point position in space already before copy to points(with correct rotation and scale at this points).
Technical Discussion » Emit RBD pieces every frame with random attributes workflow
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- Dawid Wizor
- 33 posts
- Online
Very neat solution, less code than in my version and it solves the offset problem, thanks!
Technical Discussion » Emit RBD pieces every frame with random attributes workflow
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- Dawid Wizor
- 33 posts
- Online
Hello,
i have scene where i want to emit rbd piece every frame into sim. After that i want to have proper attributes(actual transforms from rest state) on points because i want use them in "Instancer LOP". By default points from RBD dont take into account transforms made before sim of objects. So i have to bring them back, to achieve this i am using 4@restxform which solver returns to me on every piece. I think I almost have it with scale and rotation, but i have slighty offset on everypiece and I don't know what it comes from.
I made a test scene to illustrate scenario I'm talking about. The whole setup is done in LOPs and rbd sim is in the "Instancer LOP".
If anyone has an idea what this offset is caused by or has a better way to deal with this scenario, I would be grateful ^^
Thanks,
Dawid
i have scene where i want to emit rbd piece every frame into sim. After that i want to have proper attributes(actual transforms from rest state) on points because i want use them in "Instancer LOP". By default points from RBD dont take into account transforms made before sim of objects. So i have to bring them back, to achieve this i am using 4@restxform which solver returns to me on every piece. I think I almost have it with scale and rotation, but i have slighty offset on everypiece and I don't know what it comes from.
I made a test scene to illustrate scenario I'm talking about. The whole setup is done in LOPs and rbd sim is in the "Instancer LOP".
Image Not Found
If anyone has an idea what this offset is caused by or has a better way to deal with this scenario, I would be grateful ^^
Thanks,
Dawid
Edited by Dawid Wizor - July 31, 2024 08:00:01
Technical Discussion » How to add primvars to existing Points Instancer in LOP
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- Dawid Wizor
- 33 posts
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Technical Discussion » Copy to points after rbd sim
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- Dawid Wizor
- 33 posts
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npetit
You now have all of the copied pig heads at their rest position and orientation. Now use a transform pieces SOP on them and use the points from the dopimport SOP to transform them.
Do you know if your approach works with rbd emitted every frame? Because i can't figure it out ;x
Technical Discussion » How to add primvars to existing Points Instancer in LOP
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- Dawid Wizor
- 33 posts
- Online
Thank you a lot! I thought that was the problem but I couldn't import the attribute from Internal SOP as primvar. Out of curiosity if I would like more control, do you know how to import primvar using Interal SOP? Houdini automatically imports attributes from Internal SOP in "Modify Point Instances LOP" as property. Adding "primvars:"attribute name from SOP" in this field does not work.
Technical Discussion » How to add primvars to existing Points Instancer in LOP
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- Dawid Wizor
- 33 posts
- Online
Hello , i have asset which has a Mtlx Shader that takes 2 attributes(Mtlx Geometry Property Value) from the points - color and switch, and with these attributes I want to randomly change the color of each instance.
When i am using it directly in point instancer everything works fine. But in this case I want to arrange objects via "Layout LOP"(method Point Instancer), so i have to add these attributes to already existing "point instacer" primitive type. I tried "Modify Points Instances LOP" but it seems it doesn't work.
Workaround I found is to grab the points straight from the "Layout LOP" to another "Points Instancer LOP" and add those attributes there but it's not the most elegant solution.
If you have a better solution to this problem I would be grateful ^^
Thanks,
Dawid
When i am using it directly in point instancer everything works fine. But in this case I want to arrange objects via "Layout LOP"(method Point Instancer), so i have to add these attributes to already existing "point instacer" primitive type. I tried "Modify Points Instances LOP" but it seems it doesn't work.
Workaround I found is to grab the points straight from the "Layout LOP" to another "Points Instancer LOP" and add those attributes there but it's not the most elegant solution.
If you have a better solution to this problem I would be grateful ^^
Thanks,
Dawid
Edited by Dawid Wizor - July 28, 2024 09:12:15
Technical Discussion » How to merge Recipes files from different paths into one?
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- Dawid Wizor
- 33 posts
- Online
Nah, in my question I mean a hip file that contains all saved recipes(new preset system in houdini 20.5)
What if I have several such files from different computers, is there any option to merge them into one file?
What if I have several such files from different computers, is there any option to merge them into one file?
Edited by Dawid Wizor - July 24, 2024 12:57:22
Technical Discussion » How to merge Recipes files from different paths into one?
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- Dawid Wizor
- 33 posts
- Online
Hello,
I made recipes on two different computers, I transferred them both to one computer(hip files from "otls" folder which contains them) with changed names and now I have 2 recipe files, is there any option to merge them into one recipe file?
Thanks,
Dawid
I made recipes on two different computers, I transferred them both to one computer(hip files from "otls" folder which contains them) with changed names and now I have 2 recipe files, is there any option to merge them into one recipe file?
Thanks,
Dawid
Technical Discussion » Node Permanent Defaults with Recipes
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- Dawid Wizor
- 33 posts
- Online
BabaJ
What do you mean by 'correct'?
I assume there is a reason they added "legacy" to the name of these options. This suggests that these options shouldn't be used in first place, because we have new, better features(and maybe one day they will be removed). So they left it in software for people who used them before the update, so that they don't lose their presets, and can have time for switch to new features. Otherwise, calling it legacy is misleading.
Edited by Dawid Wizor - July 21, 2024 11:18:18
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