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Actors disappear when I switch to Iray

omvendtomvendt Posts: 163
edited May 15 in The Commons

Dear experts,

I added an image of a building as backdrop (Windows/pane/environment/import) and placed three actors in front of the image. Looks fine in all views, except IRAY or if I try to render. In those cases, the actors et cetera simply disappear. 

Anyone know why this is so?

Thanks in advance!

Post edited by omvendt on

Comments

  • felisfelis Posts: 6,305

    Nothing I have heard of.

    Some images of what you are seeing might help clarify.

    And are there anything special the the character?

  • omvendtomvendt Posts: 163

    Here are images with wire drawing and with the exact same scene, just NVIDIA Iray selected

    deleteme.jpg
    1001 x 1115 - 240K
    deleteme2.png
    682 x 1230 - 954K
  • joannajoanna Posts: 2,542
    edited May 15

    From the looks of it, your backdrop image is closer to your camera (render perspective) than your figures are.

    Edited: while they might be visible in the wire preview, they are actually behind the backdrop, so in Iray, they won't be visible. Move the backdrop back, and it should be solved.

    Post edited by joanna on
  • Write IdeaWrite Idea Posts: 478

    In your PARAMETERS tab, for each of your figures, check your DISPLAY settings . If you have the VISIBLE IN RENDER turned OFF it will have the characters disappear in the render.

    Screenshot 2026-05-15 124459.png
    460 x 422 - 36K
  • garrett_3dgarrett_3d Posts: 353

    I'd say the figures are actually behind the background.

  • Write IdeaWrite Idea Posts: 478

    I think I see the problem. Your camera might be angled under the ground plane. You'll notice thin lines running through your first (unrendered) image. They disappear (along with your figures) on the rendered image. Those lines are the ground plane. If this is the problem, go to the RENDER SETTINGS TAB, select ENVIRONMENT and then turn off GROUND VISIBLE FROM BELOW. Your figures aren't behind the street image, because that's a background image that isn't in the actual 3d space.

  • barbultbarbult Posts: 26,869
    edited May 16
    I believe Write Idea has the correct analysis and solution here. An image loaded on the Environment pane will never be in front of 3D objects. It is the ground that is hiding the 3D objects, because your camera is underground looking up, and your Render Settings are set by default make the rendered ground visible from below. Follow Write Idea's instructions or move your camera above ground. Your photo was probably taken from eye level, so moving your camera to eye level would make a more convincing combination of 3D objects and photo.
    Post edited by barbult on
  • omvendtomvendt Posts: 163

    Thanks, all, and especially Write Idea and Barbult. The subterranean camera was the problem!

    Shizuku family outside of airport 202605151010 2605152215.png
    1920 x 1080 - 3M
  • barbultbarbult Posts: 26,869
    That looks good!
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