Hi Brian,

thank you for your tipps about increasing performance. I've took a look in the discussion about inline programming - but it is to complicated for me. I don't know which functions can be put in and which not - and how they interchange data with a mainsript. (Sorry about my englisch and my skills in java script). The only performance killer I found, is that i Calculate every plane twice. I have to check, how much work it is, to change that.

Futher more I think my explanation about the underling idea wasn't the best, so I've draw a model (in Attachment) - a picture is better then thousands of words.

Greetings
Karsten