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Any techie has an idea how I should hunt this bug down ?

ibr_remote aka infinity10ibr_remote aka infinity10 Posts: 538
in Technical Help (nuts n bolts)

3D CG bug hunt:

I tested with OBJ objects created using two versions of Blender3D - 4.3.2 and 4.5.3.

Both objects imported into Daz Studio 4.24 and objects from both version are unable to receive applied shader presets from Daz Studio libraries. (Yes I have pointed to the surfaces in the Surface tab and am using iRay)

All UVs and material zones and normals have been done correctly in Blender3D.

This was never the case with my old Win 10 PC with 3060 Nvidia GPU. I now have an Nvidia 5080 GPU and a Win 11 PC. My GPU driver is up-to-date.

Comments

  • crosswindcrosswind Posts: 9,537
    edited October 28

    I'm not sure if you mean the shader presets fail to be applied or if you cannot render the applied shader effects... but DS 4.24 doesn't support Nvidia 50 series cards in terms of rendering. You have to use DS 2025 Alpha for your 5080 card. 

    Post edited by crosswind on
  • ibr_remote aka infinity10ibr_remote aka infinity10 Posts: 538

    @crosswind - that's most likely it. I need to go to the alpha version ! 

  • ibr_remote aka infinity10ibr_remote aka infinity10 Posts: 538
    edited October 28

    Existing shaders from the store work with my RTX 5080 win11 machine using Daz Studio 4.24.  It is only the imported OBJs which I modelled in Blender3D that can't seem to render the applied shader presets from the library.  I can render my images with DS 4.24 and my RTX 5080.

    Post edited by ibr_remote aka infinity10 on
  • LeanaLeana Posts: 12,735

    Are you sure the version of the obj you imported is UV-mapped?

    How did you export them from Blender, and what options did you use when importing them in DS?

  • ibr_remote aka infinity10ibr_remote aka infinity10 Posts: 538

    Can confirm there is UV mapping done in Blender.  

    here are my Blender3D export options.  I'll do an import options screen capture in my next post

     

  • ibr_remote aka infinity10ibr_remote aka infinity10 Posts: 538

    and here is my DS import option (ignore the caling please)

     

     

  • ibr_remote aka infinity10ibr_remote aka infinity10 Posts: 538

    It's a bit of a mess, but here's the evidence of the UV map and material creation for the model inside Blender3D

    571193295_10233753058981477_5925020949185114992_n.jpg
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    571039294_10233753062781572_3029399791994514349_n.jpg
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  • Richard HaseltineRichard Haseltine Posts: 107,858

    What are your settings for the OBJ export from Blender and import into DS?

  • LeanaLeana Posts: 12,735

    I don't see the export and import options in your posts, is there an attachment missing maybe?

  • richardandtracyrichardandtracy Posts: 7,077

    Sometimes with obj files, I need to apply the DAZ Uber shader to the file before other Uber based shader presets work. Don't know why.

    Regards,

    Richard

  • ibr_remote aka infinity10ibr_remote aka infinity10 Posts: 538

    Sorry my attachments seem to have vanished.  trying to send  again.

  • Richard HaseltineRichard Haseltine Posts: 107,858

    Those attachments are still on their original post, it is images showing the options used for export and import that we wish to see.

  • ibr_remote aka infinity10ibr_remote aka infinity10 Posts: 538

    Trying again... apologies for the mess

    B3D OBJ export obtions.png
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    DS4 OBJ import obtions.png
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  • Richard HaseltineRichard Haseltine Posts: 107,858

    You need Read UV Coordinates checked on the Import options.

  • ibr_remote aka infinity10ibr_remote aka infinity10 Posts: 538

    Richard Haseltine said:

    You need Read UV Coordinates checked on the Import options.

    AHHHHH !!!  That's a face palm moment.  Thank you so much.  

  • ibr_remote aka infinity10ibr_remote aka infinity10 Posts: 538

    FIXED !!!  Just that unchecked UV import box was driving my nuts....

    fixed.png
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  • Richard HaseltineRichard Haseltine Posts: 107,858

    At least it was a simple fix in the end.

  • crosswindcrosswind Posts: 9,537
    edited October 28

    ibr_remote aka infinity10 said:

    Existing shaders from the store work with my RTX 5080 win11 machine using Daz Studio 4.24.  It is only the imported OBJs which I modelled in Blender3D that can't seem to render the applied shader presets from the library.  I can render my images with DS 4.24 and my RTX 5080.

    With DS 4.24, you just previewed or rendered with your CPU rather than your RTX 5080 ~ You can see the message from your DS 4.24 log stating your 5080 cannot be used for Iray preview or render... 

    Post edited by crosswind on
  • ibr_remote aka infinity10ibr_remote aka infinity10 Posts: 538

    crosswind said:

    ibr_remote aka infinity10 said:

    Existing shaders from the store work with my RTX 5080 win11 machine using Daz Studio 4.24.  It is only the imported OBJs which I modelled in Blender3D that can't seem to render the applied shader presets from the library.  I can render my images with DS 4.24 and my RTX 5080.

    With DS 4.24, you just previewed or rendered with your CPU rather than your RTX 5080 ~ You can see the message from your DS 4.24 log stating your 5080 cannot be used for Iray preview or render... 

    3D CG bug hunt

    Thanks to Wendy Vainickis I checked and saw that my CPU has been rendering for DS 4. DS recognises the RTX 5080 card but cannot render with it. Nvidia app on Win11 shows that the CPU is in use. I will migrate to DS 5.

     

    DS4 sees my RTX5080.png
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    DS4 renders with my CPU.png
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  • ibr_remote aka infinity10ibr_remote aka infinity10 Posts: 538

    Here goes nothing...

     

     

    here we go.png
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  • ibr_remote aka infinity10ibr_remote aka infinity10 Posts: 538

    3D CG BugHunt - Muahahaha ! Rendering with RTX 5080 so fast

    Using GPU ha ha ha.png
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  • crosswindcrosswind Posts: 9,537

    Great ! yes

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