GradientRamp rotation in bump slot

[Bormax]

Hi,
Noticed the bug (?) using GradientRamp rotation in bump slot.
If W rotation of the map is inbetween 87' and 93' bump dissapears from some of polygons in example with box and Box UVW Maping. If I use plane with Planar maping bump disapairs from it with the same angle range.

[hubrobin]

Hey Bormax,

this is a bug indeed. Thanks for reporting this. Unfortunately the source of this problem comes from the 3dsMax maps(bitmap, gradient, etc...). You would get the same problem in vray for example, but you would have to uncheck the 'shade context in camera space' expert option (otherwise it happens under different setup).

Other thing is that under angle close to 90 degrees the bump disappears, yes, but it also changes its strength with the rotation!

The workaround solution since the next daily build would be:
1) Render the gradient map in sufficient resolution and save it as an image file.
2) Use CoronaBitmap and rotate however you like without affecting the strength of the bump.

Cheers,

Robin

[Bormax]

Thanks for your response!
I had this problem in Vray - this is why I put question mark in brackets, and I didn't know how to solve it (thanks for the tip!). Render map and use it as a normal bitmap is the way I used before. I'm just working now on the project where it's very convinient to change on fly a width, gradients and rotation of stripes generated with GradientRamp and use it as a mask for other maps at the same time.
Good to know that you are going to solve it! Thanks!