Types of renderers
 
 
 

In addition to hardware shading, which happens in real time on your computer display, there are three single processor types of renderer (raycast, raytrace, and hidden line) and two multi-processor types of renderer (powercast, and powertrace). You can render a scene using any of these renderers either interactively within Alias, or to the Alias renderers from a UNIX command line. You can also test render a scene at a lower resolution.

When you render a scene, a stream of data is sent to the renderer.

The results of rendering are created in the appropriate directories of your local Alias environment, regardless of which renderer you use.

Raycasting

Raycasting produces smooth shaded renderings that include shadows. Raycasting is faster than raytracing, but does not produce reflections or refraction. (You can simulate reflections using reflection maps and simulate refraction using linear transparency.) Raycasting is often required for long animations to keep the total rendering time within a reasonable limit.

Raytracing

Raytracing produces smooth shaded renderings that include reflections, refraction, and shadows.

Hidden Line

Hidden line rendering produces a cartoon or sketch style rendering. Outlines for the objects are rendered in the shader color, and the objects are filled with white.

Powercasting and Powertracing

The PowerCaster and PowerTracer are multi-processor versions of the RayCaster and RayTracer. By using the PowerCaster or PowerTracer you can render a scene using a select number of processors of a multi-processor computer.