Announcement

Collapse
No announcement yet.

Texture returned an invalid bump normal

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Texture returned an invalid bump normal

    Hello everyone,

    I searched on the Internet for a solution, but I only found few topics describing the same problem, but it wasn't resolved.

    Click image for larger version

Name:	error_001.jpg
Views:	1
Size:	276.2 KB
ID:	880643

    It happens randomly. 1 out of 3 renders. When I go in the material editor, disconnect the map, then connect it again the warning disappears, and the scene is rendered correctly until it shows up again at some point.

    The map is procedural cellular map, connected to the bump slot of a VrayMtl. The material is assigned to a sphere with a spherical UV mapping, and then the sphere is scattered in the scene using multiscatter.

    Tried to disable/enable bitmap paging and it does nothing about this particular issue.

    Did anyone encounter the same problem?


    And while I had this post opened, I want to ask one more thing.

    Click image for larger version

Name:	artefact_002.jpg
Views:	1
Size:	132.0 KB
ID:	880646

    Click image for larger version

Name:	artefact_001.jpg
Views:	1
Size:	148.5 KB
ID:	880645

    I have this strange looking artefacts. They look like bucketing issue of some sort. Appearing only when DOF is active.

    V-ray physical camera, slight optical vignetting on the bokeh. Adaptive image sampler with 1/64 min/max samples. The threshold is around 0.06.


    Both issues are on a 3ds max 2014 64 bit, and V-ray 3 EDU.

  • #2
    It's best to post issues in separate threads.

    For the cellular map, can you get me a scene? It looks like a bug in the cellular map itself, I don't know if there will be anything that we can do about it.

    For the second issue, increase the min. AA subdivs.

    Best regards,
    Vlado
    I only act like I know everything, Rogers.

    Comment


    • #3
      Thank you for the quick response!

      Originally posted by vlado View Post
      It's best to post issues in separate threads.
      Sure. Sorry about that.

      Originally posted by vlado View Post
      For the cellular map, can you get me a scene? It looks like a bug in the cellular map itself, I don't know if there will be anything that we can do about it.
      I will upload the scene later once I get back home. I did tried to replace the cellular with a noise tho, but it did not appear to make any difference.

      Originally posted by vlado View Post
      For the second issue, increase the min. AA subdivs.
      Thanks for the solution! I will try this. It is going to affect my render times no doubt, but not by a great amount I hope.

      Thank you once again,
      Zdravko

      Comment

      Working...
      X