PROGRAMMING GUIDE
A rendering effect is an enhancement to a scene that is made in order to achieve a certain visual quality. Typically, rendering effects provide more than what can be produced by geometry and attributes alone. For example, Visualize might post-process a scene in a certain way in order to generate a shiny reflection or a bloomed specular highlight. Rendering effects will enhance a scene at the cost of performance, although many modern GPUs support advanced effects in hardware to reduce this burden.
if you're using opengl driver, the rendering effects available to you will be limited. for a list, se ethis link
Anti-aliasing is a rendering technique used to diminish the effect of hard jagged lines by blending them with the color of the surrounding pixels. Visualize supports full-screen antialiasing for all hardware drivers. Using this feature will have no effect on other drivers, including print drivers. Anti-aliasing levels of 2x, 4x, and 8x are supported; 4x anti-aliasing is enabled by default.
Enabling anti-aliasing is a simple operation. However, setting the anti-alias sampling level must be done at the time of window creation and cannot be changed - it can only be enabled or disabled.
Anti-aliasing is normally handled by the graphics hardware. If the feature is not supported, Visualize will not fall back to software anti-aliasing - the window simply will not be anti-aliased. There is a slight performance penalty when using anti-aliasing. At this time, only full-screen anti-aliasing is available.