Question about scaled meshes and scaled normals

bicunisa · Post by **bicunisa** » Tue May 09, 2006 6:35 pm

Hi guys!

I got a question about scaling stuff in Irrlicht.

When you scale a mesh using the setScale method, it does scale the normals too. So when you scale a mesh by a factor of 2, the normals should scale by a factor of 2 too.

Then could someone explain to me why when you scale a mesh bigger than it's original size it darkens, and why when you scale it below it's original size it lightens?

I know that you need to recalculate the normals to avoid this problems, but I'm looking to understand why it darkens when you scale it bigger, and not the other way around.

Thanks!

Fido · Post by **Fido** » Thu May 11, 2006 7:23 pm

I know that you need to recalculate the normals to avoid this problems,

Oh dude, you solved my problem without even answering a question, i had a problem with this stuf... now i know what to do

hybrid · Post by **hybrid** » Thu May 11, 2006 9:31 pm

There is a flag which you can set such that normals are automaticlly normalized. Read the examples code.