I have assigned "oriented materials" (e.g. wood surface) to elements in my design (e.g. bookshelves).
When using Display Style: Illustration > Ignore Lighting, I get this image:
(the wood on the bookshelves is attached as a Material Projection, and the projection is rotated)
When I render the scene from above, I get this image:
The wood is "rotated" by 90 degrees.
Therefore, when attaching the materials (and working with Display Style: Illustration > Ignore Lighting) and knowing I attach a Material Projection where I will rotate the material, I have to rotate it by 90 degree to what I intend to...
Below is the same scene, but with material rotated... (Illustration view on the left, Render on the right):
Is this issue known? Is it a bug?
MicroStation 08.11.09.357, Windows 7 Professional 64-bit English Service Pack 1
Jan
this has been a 'bug' forever, at least in respect to Bentley Architecture elements (walls, forms, Triforma elements etc..) . I always build 2 materials with 90deg orientations because this ALWAYS comes up. Building a material that has all rotations at "0" doesn't always work if you have multiple pattern files or the bump image happens to be 90deg rotation to the pattern map.
So, here's an update of what Paul from Bentley came up with.
Apparently, it's a bug, but it only manifests itself when using a material that has a rotation specified (e.g. NOT 0 degree).
A simple rule follows from this:
when using Material Projection, use a material that has 0 degree rotation.
Thanks, Paul, for clarifying this issue!
Answer Verified By: Jan Dvorak
Hi Paul,
thanks for the quick reply. I will send you the DGN plus the DGNLIB (has the materials definition) plus the JPG for the material in question later this afternoon (Europe time).
As for attaching it without a projection: once you have the DGN, you will see that when attaching a material "with oriented surface" (e.g. wood) to some elements, that orientation aligns with the global XY axis. The project I am working on and where I discovered this behaviour is not aligned to the global XY axis (I am using 3 ACS systems), therefore I use Material Projection and Rotation (yes, I could put a rotation angle for the material in question, but since I have 3 ACS systems, I would need 3 different rotation angles and therefore 3 variations of that material...).
Anyway, that´s degressing from the initial issue. I will send you the files within a few hours.
Regards,
Hi,
That looks like a bug to me. Can you send me your file so I can investigate it.
You should be able to do that mapping without using a projection. It looks to me like parametric should work for you with an appropriate rotation angle.
Regards
Paul Chater