Raytrace Tab (Photo-Realism Settings Dialog Box) - Intergraph Smart Review - Help

Intergraph Smart Review Help

Language
English
Product
Intergraph Smart Review
Search by Category
Help
SmartPlant Foundation / SDx Version
7.1 (2018 R1)
Smart Review Version
13.x(2018)

Provides options for controlling the quality and speed of the raytracing program.

During the raytracing process, the software sends rays across the monitor like a scanner.

There are two types of raytracing: forward and backward. Smart Review uses backward raytracing. In backward raytracing, the software starts from the eye and sends a ray that goes into the scene and looks for light. Forward raytracing looks for light and then sends a ray back to the eye.

Because raytracing gives the effects of shadows, reflections, and transparency, it is significantly better than the smooth texture shading offered by OpenGL. However, raytracing is not truly photo realistic; the options on this tab are designed to compensate for the imperfections in the raytracing technology. For detailed information about each option on the Raytrace tab, see the following topics.

Reflective Threshold Option (Raytrace Tab)

Reflective Bounce Option (Raytrace Tab)

Transmittance Threshold Option (Raytrace Tab)

Transmittance Bounce Option (Raytrace Tab)

Gamma Option (Raytrace Tab)

Anti-alias Option (Raytrace Tab)

Generate Shadows Option (Raytrace Tab)

Raytrace Option (Raytrace Tab)

Neutral Gray Background Option (Raytrace Tab)

  • During raytracing, 95% of the algorithm's time is spent looking in the model to see whether the ray hit anything, and then attempting to identify what it hit.

  • Raytraced reflective surfaces are true reflections of the environment and do not depend upon applied reflective textures.

  • Although forward raytracing is far superior in quality, the performance cost is extremely high.