Quote - Yes IDL is slower than non IDL rendering in most render engines - it has to do a lot more calculations than would otherwise be needed.

Speed - Quality.  pick one :biggrin:

That's oversimplifying things..... a lot. Without IDL you can get excellent quality without IDL, people having been doing that for years and with the excellent light improvement P7 & P8 have offered, quality isn't dependent upon IDL alone. Even if one would never use IDL, quality can be achieved.

IDL isn't a synonym for quality at all, far from it. If you don't know how to use it, your scenes will end up looking worse then when using regular lights. Regular lights and IDL both give excellent quality as long as you know what you're doing..... that's they key to quality.

Artwork and 3DToons items, create the perfect place for you toon and other figures!

http://www.renderosity.com/mod/bcs/index.php?vendor=23722

Due to the childish TOS changes, I'm not allowed to link to my other products outside of Rendo anymore :(

Food for thought.....
https://www.youtube.com/watch?v=pYZw0dfLmLk