Material Mapping or Displacement problem Vray

fymoro

Hi all,

Here are my first try to make materials,

For the grass it is OK, but for the stone, I do not understand why the sphere and the planar look so different. Problem of mapping ? I try to make my own material library, I think that it will be more easy to render with that.

Thank for your help.

stone test.JPG

Gaieus

Hi Fred,

I'm not a Vray user so I cannot go for sure but from the image it seems to me that the material has some UV mapping problems on the sphere - i.e. it follows its SU segmentation. Have a look at this UV Tools plugin,apply a spherical mapping to it and after exporting the model to Vray (if it allows you to export UV maps from SU), apply your material.

remus

If that doesnt do it you may have more luck asking over at the asgvis forum: http://asgvis.com/index.php?option=com_smf&Itemid=90&

fymoro

Ok, Many thanks, I will try tomorrow.

In Vietnam now it is 2am , must go to sleep !!

Tanks again.

Gaieus

It's just 8 PM here so I'll still have a couple of beers before going to bed

materialdb

hey..
cool, you're using the scene !
the mapping within the material-editor is a different one from the texture-coordinates sketchup applies to the geometry...
a good step is to

apply a texture to a geometry with sketchup and create a linked material (as done in the scene)
if there's skp-material on it, use Sketchup's material panel to change the texture instead of replacing the wohle material! (otherwise the UV-Coordinates will be lost!)
go into the material editor and add bump-maps (or whatever)
use the EXPLICIT MAP CHANNEL for all textures added
for you can't easily rename the linked material DUPLICATE it an rename it for exporting...
It's a bit of a hassle using the uv-settings in the material-editor, cause you can't visually adjust it..

Hope it will help you

fymoro

Thanks to you both,

I have fixed the problem with the small plug-in uv tool, very practical...

Bye