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Thread: LW 2020 to Ue4 help

  1. #1
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    LW 2020 to Ue4 help

    I'm completely new to Unreal Engine so don't know if anyone can help me with this?
    I used the LW Bridge to unreal engine to send my model over but it seems as if UE doesn't use uv maps as although the maps are sent over the object remains grey. Is there a special way of doing this? Something I need to change in the LW maps before bridging to UE?

  2. #2
    ack ack Markc's Avatar
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    Can’t help you sorry, but there is a Ryan Roye vid on Liberty 3D for this.
    It’s pretty expensive (about $65), but as all Ryan’s videos, well worth it.

    Have you looked on YouTube.
    Mac Pro (2010) OSX 10.14 RX580 Pulse LW2020 CSculpt NMotion
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  3. #3
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    Do you have UV maps attached to some surfaces in LightWave?

    Which LW version are you using?

    In the case of OBJ export, UVs must be attached to surface. People frequently forget about it.

  4. #4
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    I'm vers. 2020.02 using principled BSDF node textures uv mapped to surface.

  5. #5
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    Quote Originally Posted by genesis1 View Post
    I'm vers. 2020.02 using principled BSDF node textures uv mapped to surface.
    Then try one of earlier versions e.g. LW 2015, and configure UV mapping in regular Texture Editor, to see if it changed anything..

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    I already tried with regular standard textures and nothing goes through. With node textures, they go through but just not mapped correctly and there seems to be no simple uv map selecter in Ue4.2 to correct it. I've spent ages just trying to get a uv map right. It maybe to do with the item having a zbrush uv map. It's a real pain. I guess I might have known it wouldn't be as simple as activating LW Bridge to UE and sending them across with correct uv's.

  7. #7
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    Quote Originally Posted by genesis1 View Post
    I already tried with regular standard textures and nothing goes through.
    LW 2018+ does not have "standard regular textures" (what you see in Surface Editor in LW 2018-2020 is just "fake" to look like as in old LW, for older customers to be happy).. You must try it on LW 2015 or LW 11..

    What is important is whether UE4 exporter has been properly updated to support new SDK with new surfacing system.

  8. #8
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    Quote Originally Posted by genesis1 View Post
    I already tried with regular standard textures and nothing goes through. With node textures, they go through but just not mapped correctly and there seems to be no simple uv map selecter in Ue4.2 to correct it. I've spent ages just trying to get a uv map right. It maybe to do with the item having a zbrush uv map. It's a real pain. I guess I might have known it wouldn't be as simple as activating LW Bridge to UE and sending them across with correct uv's.
    Try from something ultra simple. Make quad polygon.

  9. #9
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    Found out the problem or at least I think I have. After sending the object via LW to UE Bridge I altered the scale of the object in UE before applying the textures so this messed up the application of the uv textures. I tried it by adding the textures first before resizing in UE and it now works. I will double check tomorrow but that seems to be the cause.

  10. #10
    Registered User Skywatcher_NT's Avatar
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    Quote Originally Posted by genesis1 View Post
    I'm vers. 2020.02 using principled BSDF node textures uv mapped to surface.
    Why not use the Unreal Shader?

  11. #11
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    Quote Originally Posted by Skywatcher_NT View Post
    Why not use the Unreal Shader?
    I've only just begun with Ue4 so need to learn a lot, but it's a character head I've imported so need the texture maps. Wanted to see how it would look in UE.

  12. #12
    ex-LightWave documentation BeeVee's Avatar
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    Quote Originally Posted by Sensei View Post
    LW 2018+ does not have "standard regular textures" (what you see in Surface Editor in LW 2018-2020 is just "fake" to look like as in old LW, for older customers to be happy).. You must try it on LW 2015 or LW 11..

    What is important is whether UE4 exporter has been properly updated to support new SDK with new surfacing system.
    The Unreal Bridge is only available in LightWave 2019 onwards. It is not available in earlier versions of LightWave, so saying to try in 11 or 2015 makes no sense.

    B
    Ben Vost
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  13. #13
    Quote Originally Posted by BeeVee View Post
    The Unreal Bridge is only available in LightWave 2019 onwards. It is not available in earlier versions of LightWave, so saying to try in 11 or 2015 makes no sense.

    B
    BeeVee, are you still working on the docs and should we still send you suggestions and/or corrections?

    Thanks
    Tim Parsons

  14. #14
    ex-LightWave documentation BeeVee's Avatar
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    Hey, Tim. Not since August, although I did make sure that there's a PDF export from the wiki available in your NT user account, in case VizTek decide to stop the wiki.

    B
    Ben Vost
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  15. #15
    Frequenter
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    Hi BeeVee, thanks for your continuing support! You are and have been a great asset to the community. To sad they let you go... :-\
    VizTek? Is that a hint of some sort? ;-)

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