Keywords: main

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# 1. Functionality

mental ray offers all the features traditionally expected of photorealistic rendering, together with functionality not found in most rendering software. The following sections describe parallelism, free-form surface input geometry, edge merging and adjacency detection and various input entities such as materials, texture mapping and light sources, and global illumination features such as caustics.

- 1.1 Parallelism
- 1.2 Free-Form Surfaces
- 1.3 Edge Merging and Adjacency Detection
- 1.4 Special Points and Curves
- 1.5 Atmospheres and Volumes
- 1.6 Materials
- 1.7 Light Sources
- 1.8 Area Light Sources
- 1.9 Shadow Maps
- 1.10 Texture, Bump, Displacement, and Reflection Mapping
- 1.11 Texture Filtering
  - 1.11.1 Pyramid Filtering
  - 1.11.2 Elliptical Projection Filter Lookup
- 1.12 User-Defined Shaders
- 1.13 The Camera
- 1.14 Lens Effects
- 1.15 Depth of Field
- 1.16 Animation
- 1.17 Motion Blur
- 1.18 Sampling Algorithms
- 1.19 OpenGL Acceleration
- 1.20 Color Calculations
- 1.21 Output Shaders
- 1.22 Contours
- 1.23 Memory-mapped Textures
- 1.24 Caustics
  - 1.24.1 Light Sources
  - 1.24.2 Objects
  - 1.24.3 Material Shaders and Photon Shaders for Caustics
    - 1.24.3.1 Physically Plausible Material Shaders
  - 1.24.4 Shader Functions
  - 1.24.5 Fine-tuning Caustics
- 1.25 Global Illumination2.1
  - 1.25.1 Light Sources
  - 1.25.2 Objects
  - 1.25.3 Fine-tuning Global Illumination
- 1.26 Final Gathering2.1
- 1.27 Volume Caustics
- 1.28 Global Illumination in Participating Media2.1
- 1.29 Diagnostic modes2.1