Picture Surfce (Pictureframe Image) Does Not Receiving/Display Shadow

V-Ray for Rhino V-Ray for Rhino :: General
1

Greetings,

Neither in Rhino rendered view nor Vray render shadow on picture surface does not appear while on any other surface does.
Attached-please-fin a Rhino file.

I will be deeply thankful for any elucidation. Thank you in advance.
https://we.tl/t-aerpGzoCeB​

Windows 11, Rhino 8, Vray last version.

2

Hello @artur_chojnacki ​!

It looks like the imported images in Rhino as “Picture surface” type are imported with enabled Texture Self illumination option. Disabling this option will display the shadows on the picture as well as on the other surfaces.
Please, try the following steps:

  1. Select the imported image.
  2. In the Rhino’s right panel select the Material Properties.
  3. Then in Picture’s Texture section turn off the Self illumination option.

Both V-Ray and Rhino Render should show the shadows on the image.
Example with enabled Sun Light and disabled Texture’s Self illumination option:

Texture-Selfillumination-off.jpg
Texture-Selfillumination-off.jpg1841×797 325 KB

Scene-Texture-Selfillumination-off.jpg
Scene-Texture-Selfillumination-off.jpg1843×755 510 KB

Please, let us know if that helps.

Kind regards,
Ivelina

3

Greetings today,

I am very grateful for the excellent explanation and, even more so, for solving my sleepless problem.

I confirm that it works as indicated.

I believe that Rhino uses self-illumination as the default setting.
I may be wrong, but I did not activate this function under any circumstances.

Thank you very much once again.

​

4

Hi @artur_chojnacki ​!
I’m glad to hear that the problem is solved!

I believe that Rhino uses self-illumination as the default setting.
That’s right, the Texture’s Self illumination option is enabled by default.

If you have some other questions, do not hesitate to ask.

Regards,
Ivelina​