Optimizations Rollout

On—When checked, transparent surfaces will cast a colored shadow. Otherwise, all shadows are black.

Note: Shadows will generate faster with this value turned off.

A stained glass appears solid with the transparency optimization turned off.

Antialiasing Threshold—The maximum color difference allowed between transparent object samples before antialiasing is triggered. Increasing the value of this color will make the shadow less sensitive to aliasing artifacts and improve speed, decreasing the value will increase the sensitivity, improving quality.

Suppress Antialiasing—When checked, only Pass 1 is used during 2-Pass Antialiasing when shading a supersampled material.

Note: If disabled, rendering time can be increased without resulting in a better image.

Suppress Antialiasing—When checked, only Pass 1 is used during 2-Pass Antialiasing when shading reflections or refractions.

Note: If disabled, rendering time can be increased without resulting in a better image.

Skip Coplanar Faces—Prevents adjacent faces from shadowing each other. This is of particular concern at the terminator on curved surfaces such as spheres.

Threshold—The angle between adjacent faces.

Range = 0.0 (perpendicular) to 1.0 (parallel).