Display options on Visualisation screen
The antialiasing option can be used to improve image quality. You may need to experiment with antialiasing to confirm whether or not the graphics card fitted to your computer will facilitate this feature - with some earlier cards, antialiasing can be very slow.
Tip: more advanced graphics cards can provide hardware antialiasing and in this case this software antialiasing option may only provide marginal benefit.
To enable antialiasing, switch the Antialiasing check box on and click on the Apply button:
You can improve the quality of the image using the Increasing Quality slider control:
Bear in mind that as you increase image quality, the display speed will decrease.
See also the Shading via louvers, overhangs, and side fins tutorial