Dev/Current Status

From RibTools

Contents 1 Code Updates 2 Features and TODOs 2.1 Build 2.2 Shaders 2.3 RIB files 2.4 Rendering 2.5 Network

Code Updates

• RSS Feed repository updates

Features and TODOs

Build

• CMake build implemented, but only tested to run for Windows (VS projects and Win32 threading API)

Shaders

• RenderMan SL TODO
  • Loops and complex conditionals (multiple condition per if and varying variables)
  • Statements for illuminance/solar blocks require curly braces even for a single line (^^;)
  • Unary operators are currently missing !
  • Implement #if in the preprocessor (currently limited to #ifdef / #ifndef)
  • Arrays... slowly adding compiler support

RIB files

• ASCII only support
• State machine fairly complete
• Quadrics, polygons, bilinear and bicubic patches, NURBS
• TODO: Various basic options such as searchpath
• TODO: Attribute command
• TODO: Missing primitives
  • General polygons
  • Disk (!)
  • Subdivision Surfaces

Rendering

• SIMD support for 4-way SSE2 and 16-way LRB (using C++ LRBni prototype include only..)
• Multi-threaded bucket rendering using OpenMP
  • Buckets are water-tight = no sharing of grids across buckets
• Basic point-sampled textures ! 8)
• Micro-polygon sampling implemented
• Order Independent Translucency (OIT) implemented
• Multi-jittered sampling implemented
• Sampling resolution parameter is rounded to the next square power of 2 (1x1, 2x2, 4x4, etc)

Network

• Simple network distributed rendering of "buckets" is functioning
  • Tested with only 2 computers (I need more PCs, or a Mac port 8)
• File access is abstracted and centralized on the rendering job master (not very scalable, but it works)