Presenter includes shadows generated from pre-calculated, shadow maps for each shadow-casting light source. The use of shadow maps enables rapid rendering of shadows with soft or graduated edges. The shadow resolution can be controlled to balance performance and image quality.
Soft shadows are only suitable for use with small models, and are disabled by default. For large models, the generation of the shadow maps can use excessive amounts of time and memory. Soft shadows generated for large models are often too vague and dispersed without using an excessively high resolution, which uses even more memory and time.