Vray Displacement Mod: Tiling and preview

[highpoly]

I have a displacement modifer on a curved suface -(using 2d). For one, I cant preview it in the viewport which is a problem since I am trying to place it at an exact location on the surface. Since its on a curved surface, I have to precisely rotate the mapping gizmo so the displaced height is uniform and is aligned to the average of the group of polygons normals. (imagine displacing a the letter 'P' on the upper part of a sphere, you would have to rotate the gizmo).

The second thing is it seems that even if tiling is off and set to 1, I still get tiling of the displacement map on my surface. I have to actually make a huge map that covers the whole surface, even though the area I am displacing is just a small part of that. I am using 1.45 and Max 7.

any ideas? thanks

[Candelero]

For most precise - use Unwrap...

Best Regards,
nikki Candelero

[Tango]

Re: Vray Displacement Mod: Tiling and preview

the upper part of a sphere

Where exactly is that?

[dbuchhofer]

For one, I cant preview it in the viewport which is a problem since I am trying to place it at an exact location on the surface.

Its easiest to just instance the map into a material channel you're not using, (say, RGlossiness... or anything) and uncheck it, and set it to show in viewport.

then you can do it easy..

[highpoly]

even with unwrap I still cant preview it and I need to place it. What I mean by upper part of a sphere is not the top, not the side, but like a 45 degree vevtor from the center, which is why I need to preview it, so I can rotate the mapping gizmo by eye.....

[dbuchhofer]

Oh also, dont forget about the normal align tool in uvw map.. that'll get you most of the way there, then you can adjust it by hand

[highpoly]

nice...that worked..thanks! I forgot about normal align. and the preview idea worked too..
thanks!

[highpoly]

still have the tiling problem though. with tile off and gizmo scaled down, it still tiles all over my surface....any ideas??