Yes it helped a little nw i have a name , uv mapping , and i searched for uv mapping tools in google and i found sketchuv plugin , i am trying to use it nw.

Thank you alot , isn't there any easier way to do the job ? It would be very hard to do that to every surface i have , especially for large Projects

@rspierenburg said:

Can you post an example of the rendered texture so we can get a sense of how its being stretched?

I am totally new to these forums , how can i upload photos here ?

Hello,
I am using Sketchup 2015 and v-ray 2.0 , and i have faced a problem so far i can't find a proper solution to it, i wish you guys have the solution.
I am doing A Yacht club project for my portfolio , as far i went there was no problem , untill i put materials and rendered the project, i found that material like rocks , wood , tiles and any material unless glass sure , is beed stretched.I can't find a solution . I tried to divide the area to small parts , and nothing gone well.
Anyone has a solution ?? please .... I'm in a dead need
thanks in advance