rect light and vray sun

Does somebody has a clue whats wrong?

Thanks

If necessary i will try to post the sketchup file

Thanks in advance

Hi,

I have a model and when i render the scenes. I got white dots on several places. :roflmao:

Can somebody help me to tell me or show me what i'm doing wrong, please?

The first 5 attachments are made in test quality but the other are at high quality.

This link is the workflow that i followed :https://www.youtube.com/watch?v=K-L5APsenhY