scatter problem

The scatterer is not working properly.
Please tell me how to fix it.

  1. Apply UVW map in 3ds Max (box 300030003000)
  2. Export fbx file
  3. When applying scatter after importing into D5 render 3.01, a scatter error occurs as shown in the attached image.


Hi @anishop77

  • Does this issue only occur in this specific file?
  • Have you tried changing your UVW Map in 3dsMax and checking if there is hidden geometry in this specific surface?
  • Have you ever tried using D5 Livesync for 3dsMax and see if this issue occurs?
  • You’ve mentioned that there is a scatter error prompt, but it’s not evident on the image.

HI Clov

  1. I have used D5 and worked on 5 projects. The same issue occurs in all of them.
  2. The same symptoms persist even when changing the UVW map in 3ds Max, and there are no hidden faces.
  3. The same symptoms occur in 3ds Max Live Sync. I even tested the UVW map in Live Sync.
  4. As shown in the attached image, scatter marks are applied in a checkerboard pattern, so I always have to fill them in with a brush to finish the job.
    I would like the scatter marks to be applied to the entire object.
    It is very inconvenient.

Hi @anishop77

Could you please send us your files? Specifically, we would like your 3dsMax file and your D5 file. If you’re unable to share the entire 3dsMax file, it would be helpful if you could isolate the specific portion or surface of the model that we can test. Thank you!

TEST.zip (1.9 MB)
I have attached the 3ds Max file and the converted FBX file.
Please test the scatter.

@Clov
I cannot upload the D5 file due to the size limit.
Please import the uploaded 3dsMax or fbx file and perform a scatter test.

It looks like the same issue which I described here : Scatter is broken on large irregular areas - Get Help / Tech Support - D5 RENDER FORUM

Scatter doesn’t work on large areas while using clusters. It generate striped pattern.

Try the same on smaller area or divide areas to smaller ones. I did that and it works as workaround.

hi @Smolak
Thank you.
That is one way to do it!
It improved a lot when I divided the material into multiple parts and made them into smaller areas.
Thank you.

Hi @anishop77

We were able to test your file, and it yields the same result, even with the Livesync Plug-in.

  • We’re currently testing it further to check if this is the same issue as what @Smolak has pointed out in his forum post, or simply a model error.
  • If confirmed to be the same, this requires improvement; otherwise, we will report the bug.

@Clov
Thank you for your concern.
I look forward to a quick improvement.

Hi @anishop77

We’ve confirmed that this follows the same logic as Smolak’s other forum post.

  • This issue arises because the scattered piece is both wide and narrow. The current processing logic makes this the Scatter Highlights very large, and even when the Scatter Quality is set to the maximum
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Hi @Clov, please prioritize because this is major issue inside major D5 feature.

Also you are little wrong about Scatter Quality - lowering this value to 50% can help to resolve this problem. It looks that there is internal limitation of overall instances. Increasing quality with increasing amount of instances can trigger this issue. And this is related to Cluster Size parameter only.

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I’ve run into similar scatter glitches after importing heavy geometry from other apps. Sometimes rebuilding the scatter area or slightly simplifying the mesh fixes it unexpectedly. D5 seems pretty sensitive to messy topology in some scenes.