Texture mapping in Viewport is different as in rendering

Rendering
1

I set up a kind of Special Scene.
I use a 360 photo as a Texture for a room. I use the spherical Mapping for this. I modeled a kind of a cube with the roomoutlines from the Photo. (I’ve seen a very good Video on Youtube for this topic in Blender: https://www.youtube.com/watch?v=rrZiSwXoBVA)
In the Viewport everything fits fine but the Renderresult seems to use another way of using the texture mapping. All Straight lines of the Viewport now are changed to kind of curves.
I’ve seen a similar Topic from 2016 - the solution here was to put texture channel to 0: Texture mapping different in viewport and render view - #6 by BrianJ

  • In my Case I need the spherical texture mapping
  • If I try to set the channel to 0 my Rhino crashes

I need this technique for a visualization

Any Idea to fix this?!
Viewport:

004_fail-vp
004_fail-vp1920×1181 93.8 KB

Rendering:

004_fail
004_fail1920×1181 120 KB

2

on the other side f the room I see that the texture in the rendering is kind of doubled with a mirroring:

Rendering

005 double fail
005 double fail1295×893 81.6 KB

Viewport

005 double failvp
005 double failvp1295×893 71.7 KB

3

This type of mapping isn’t well supported yet.

At the moment RhinoCycles (responsible for _Render) bakes UV coordinates to the cube. Since that cube is low-res you’ll get these kinds of artifacts.

You might get better results through setting custom render mesh to relatively dense. There still will be artifacts, but maybe not as bad.

I am working in Rhino 9 on adding mapping primitives from Rhino to Cycles so that there would be no more these artifacts due to UV texture coordinate baking.

1 Like
4

@HugoIII Can you share the file with the texture map?

5

Thank you!!!
This helped a lot. I rebuild the low res cubes with 30x30 and now there are nearly no artefacts anymore.
An I total like this technique - Use a 360 Photo as a “real” room. This is just a quick and dirty project but in the future I will play a lot with this technique!

010
0101920×1184 118 KB

011
0111920×1184 529 KB

012
0121920×1184 134 KB

2 Likes
6

of course I will make a version without the furniture and the first version of the mesh with the failed cube and will send you a PM

7

Doesn’t look like you need to send it anymore, I was just going to help with the workaround you used of rebuild as well.

1 Like
8

ok - than no file :slight_smile:

9

This would make for a nice Gallery topic once you have a good render. And show then a bit how you went about making it :slight_smile: