I am in hidden line an am using GDI-flicker free mode
In this case Redsdk might be quicker, try it.
You can still use Hidden line/Hidden line render in Redsdk mode.
Using large architectural drawings I don't have any problems working with my under qualified
windows 7 laptop in either mode but Redsdk is a little quicker to respond when in HL/HL render.
"What do I know, I'm still learning"..
Windows 7 64 bit HP > on a stock HP laptop with 4gb-2.4 GHz.Turbocad 2019-2018-2017, TurboCad Platinum 21.Using LightWorks, Anilab lab 5. ATI Mobility Radeon HD 4500/5100 and HP all in one desktop with Nvidia Geforce 210, open gl 3.3