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Found 204 posts.

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PDG/TOPs » PDG Service questions/observations

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BrandonA
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 2020年11月4日 15:05:48
Hi Peter,

I'm glad to hear that services are helpful for you!

It would be cool to be able to Edit the service, after start or even needing to stop it, to change the Pool Size. I assume it would be faster to shut down or spin up only a few more or less Hythons as needed?

This one is planned!

The Docs say only HDA Processor is supported but imagine my joy when I discovered that was wrong and ROP Fetch Service was available!

Thanks! I will update the documentation.
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PDG/TOPs » Bug or docs missing? Can't padzero

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BrandonA
373 posts
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 2020年11月4日 15:02:36
Hi Peter,

You are correct that this is a bug with the service not reloading the HIP file after its been changed. We will get a fix in for this.
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PDG/TOPs » ImageMagick convert inputfilename not working

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BrandonA
373 posts
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 2020年10月28日 09:25:58
@filename is an expression, so it is required to use backticks (`) around it.
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PDG/TOPs » ImageMagick convert inputfilename not working

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BrandonA
373 posts
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 2020年10月23日 11:20:54
If you're already using File Pattern to generate your work items, you shouldn't need anything additional. You'll just need to disable the “Extension in Filename Attribute” parameter.
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PDG/TOPs » ROP fetch service for hqclients

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BrandonA
373 posts
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 2020年10月23日 10:02:27
Currently only local machine services are supported, so it's not currently possible. However, adding support for PDG services to the HQueue Scheduler is on our roadmap.
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PDG/TOPs » ImageMagick convert inputfilename not working

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BrandonA
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 2020年10月23日 09:56:38
This syntax has been removed in the updated ImageMagick node for clarity and consistency with the rest of PDG. The recommended workflow now is to use regular PDG attributes. For this case, I would feed the input file into a File Pattern node with the “Extension in Filename Attribute” disabled (and setting the Pattern parameter to @pdg_input), and then wire the File Pattern into the ImageMagick node. You'll then be able to replace “{inputfilename}” with the @filename attribute.

I will add a note to the documentation about upgrading a scene from the 18.0 ImageMagick node to the 18.5 ImageMagick node.
Edited by BrandonA - 2020年10月23日 09:57:28
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Houdini Engine for 3ds Max » How to avoid recooking between frames?

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BrandonA
373 posts
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 2020年9月1日 15:37:13
This should now be fixed in the next Houdini 18 daily build (18.0.568). The plugin will now only recook an HDA during a time change if the HDA has any time dependent nodes.
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PDG/TOPs » PDG Encode Video Throws error.

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BrandonA
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 2020年8月27日 12:15:15
What is the error? If you double click on the work item, there will be a log that contains the error.

Note that if you have set up the PDG_FFMPEG environment variable, then you do not need to enable the FFmpeg Path parameter on the node.
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PDG/TOPs » How to create custom PDG Python Processor preset

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BrandonA
373 posts
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 2020年7月29日 19:51:17
If you are able to trigger a Python callback, you can add spare parameters to your node's interface. To do this you will need to make use of hou.ParmTemplateGroup(https://www.sidefx.com/docs/houdini/hom/hou/ParmTemplateGroup.html).

Here is an example code snippet from the documentation:

node = hou.node("/obj").createNode("geo")
group = node.parmTemplateGroup()
folder = hou.FolderParmTemplate("folder", "My Parms")
folder.addParmTemplate(hou.FloatParmTemplate("myparm", "My Parm", 1))
group.append(folder)
node.setParmTemplateGroup(group)
Edited by BrandonA - 2020年7月29日 19:52:01
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PDG/TOPs » Infinite Max Input SOP HDA problem with HDA Processor

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BrandonA
373 posts
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 2020年7月20日 15:56:46
Yes, you can supply inputs to the HDA Processor through this method. The max limit that I added to HDA Processor (100 or less) is only for the UI. You can still supply any number of inputs to the HDA by setting “Input File Source” to “Upstream Output Files”, which will allow the node to accept any number of variable inputs.
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Houdini Engine for 3ds Max » need help for loding houdini asset in 3ds max 2021

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BrandonA
373 posts
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 2020年7月20日 10:40:25
Are you able to submit a bug with the HDA attached or attach the HDA here?
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PDG/TOPs » Infinite Max Input SOP HDA problem with HDA Processor

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BrandonA
373 posts
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 2020年7月16日 19:52:09
Hi there,

I was able to reproduce the issue. What's happening is the “Number of Inputs” multiparameter is being set to the number of inputs on the HDA (in this case 99999), so it's taking a very long time to construct the parameters for each input (but it did eventually complete for me). You can see this parameter by changing the “Input File Source” to the “Custom File Paths” option.

I have added a fix for this: the “Number of Inputs” parameter will now only be automatically set if the number of inputs on the HDA is less than 100. The fix is available in the next daily build of Houdini 18 (18.0.526)
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PDG/TOPs » HDA processor and restarting a workitem

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BrandonA
373 posts
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 2020年7月6日 13:31:42
The particular HDA being used with HDA Processor shouldn't be impacting the PDG scheduling. You're correct that after dirtying the task and pressing “Cook Task” that it should start cooking.

I'm not sure why it's stuck in the “Scheduled” state without investigating further. Since I'm unable to reproduce the issue, are you able to submit a support ticket with the .hip file and/or the HDA being used?
Edited by BrandonA - 2020年7月6日 13:35:05
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PDG/TOPs » Deleting inputs of the upstream work items

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BrandonA
373 posts
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 2020年7月6日 12:01:38
I've attached an example .hip file that demonstrates how you could do this. It's built using generic nodes, but you could simply swap these nodes out with ROP Fetch and FFmpeg nodes and it would function the same. You can ignore the second Generic Generator – it's only needed for this demonstration to prevent the Attribute Create node from attaching the images as outputs.

Since you want to delete files that are depended on by a downstream node, you will need to use a partition node to ensure that those downstream dependents (in this case, the node creating the video) have completed before you use the File Remove node to delete the upstream results (the images).

I hope this helps!
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PDG/TOPs » HDA processor and restarting a workitem

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BrandonA
373 posts
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 2020年7月6日 11:27:35
I'm not seeing this issue in Houdini 18.0.499. Which build of Houdini are you using?
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PDG/TOPs » PDG Partition by Index Question

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BrandonA
373 posts
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 2020年7月3日 11:02:27
Hi,

Based on this example that you described:

(So, for example, I have 5 different points, and I want to copy 10 different coloured spheres to that point and output each as its own geometry. I have a HDA that I want to do this with, and I would expect the input to that HDA to be 50 work items)

I don't think you would need a partition node. Instead, you could feed your 5 points to the wedge node to generate the 50 work items, and then feed that directly to an HDA Processor, for example.

If you did want to group them together, you could use a Partition by Attribute. Using a Partition by Attribute with the “Distinct Attribute Values” setting and partitioning based on the wedgenum attribute will result in getting 10 partitions (1 for each colour, each containing the 5 points).

Alternatively, using a Partition by Attribute with the “Distinct Attribute Values” setting and partitioning based on the point number attribute will result in getting 5 partitions (1 for each point, each containing all 10 colours).

I've attached a .hip file that hopefully makes this much more clear than my text explanation.
Edited by BrandonA - 2020年7月3日 11:03:29
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PDG/TOPs » Crash when Python create mulyinstanceparm to hdaprocessor1

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BrandonA
373 posts
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 2020年6月15日 10:49:59
It's not currently possible to do this. Since PDG cooks in a background thread there is no way to safely modify the current scene from a Python Script TOP. We do have an RFE logged to add support for running this type of code on the main thread.
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PDG/TOPs » HDA processor parameter referencing

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BrandonA
373 posts
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 2020年6月4日 01:39:30
FFD
BrandonA
3) This is a known issue with the expressions. I agree that at the minimum, all parameters should be accessible. I will make this change

Any update on this? I have some hdas that already extensively use hidden and disabled parameter expressions for usability reasons.
I was going to use the hda processor on them but decided to avoid it and use another PDG workflow.

Yes, this has been fixed and recent H18 daily builds will have the fix.
Edited by BrandonA - 2020年6月4日 01:48:51
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PDG/TOPs » Image Magick not functioning

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BrandonA
373 posts
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 2020年5月28日 20:22:27
Hi Akira,

In order to make things easier on Mac, I've added support for a PDG_IMAGEMAGICK_DIR variable. Instead of setting the PDG_IMAGEMAGICK variable, please set the PDG_IMAGEMAGICK_DIR variable to the location of your ImageMagick binary folder (e.g. ~/imagemagick/7.0.10-14/bin). This will allow the node to find the executables of all the various subcommands (convert, montage, etc.).

This fix will be available in the next Houdini daily build of 18.0 (18.0.481 or later).
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PDG/TOPs » Image Magick not functioning

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BrandonA
373 posts
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 2020年5月26日 11:22:35
Hi Akira,

Glad you found a solution for now. The reason for this is that Imagemagick may be invoked in different ways depending on which installation of the program you are using.

For example, in some installations you call magickdirectly, and specify the subcommand as an argument:

magick montage
magick convert

In other installations, you call the subcommands directly:

montage
convert

I believe that some installations also support both. It looks like the first mode of operation is not being handled on MacOS (invoking the subcommand as an argument to magick. I will file a bug for this. I will also file a bug to update the node documentation with more clarification about the different ways that Imagemagick can be invoked.

Are you able to call the subcommands directly with your installation? If so, the easiest setup would be putting the Imagemagick binary folder on your system path.

Lastly, there will be some work done on the Imagemagick node to make this easier and more seamless for the user.
Edited by BrandonA - 2020年5月26日 11:24:48
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