- 1 Optimize BREP/NURBS ray tracing
- 2 Optimize BREP/NURBS prep
- 3 Implicit-to-NURBS
- 4 BREP/NURBS-to-NMG
- 5 BSPLINE/NURBS review
- 6 BSPLINE/NURBS reuse
- 7 BREP/NURBS CSG evaluation
- 8 Plate-mode BREP/NURBS
- 9 Implicit CSG to BREP/NURBS CSG test scripts
- 10 BREP/NURBS documentation
- 11 Cache objects
- 12 Cache prep results
- 13 BREP/NURBS wireframe
- 14 BREP/NURBS source code cleanup
- 15 BREP/NURBS healing
- 16 BREP/NURBS for analysis purpose report
- 17 Analytic comparison of BREP/NURBS and BoT
- 18 Analytic comparison of BREP/NURBS CSG and implicit CSG
Optimize BREP/NURBS ray tracing
- Benefit: faster ray tracing runtime
Optimize BREP/NURBS prep
- Benefit: faster ray tracing runtime, user requested.
Implement conversion of implicit primitives to BREP/NURBS primitives. Partially complete, primitives are fixed at origin, some primitives unimplemented.
- Benefit: partial requirement for interactive visualization of implicit CSG geometry in OpenGL.
Implement conversion of BREP/NURBS to NMG.
- Benefit: partial requirement for export and interactive visualization of BREP/NURBS in OpenGL.
Identify useful concepts implemented in the old BSPLINE/NURBS code that are not present in openNURBS.
- Benefit: code reuse, potentially very useful functionality.
Port any useful BSPLINE/NURBS code to openNURBS data structures and routines.
- Benefit: code reduction, allows the old BSPLINE/NURBS code to be removed after functionality is migrated.
BREP/NURBS CSG evaluation
Implement boolean evaluation of BREP/NURBS surfaces.
- Benefit: partial requirement for interactive visualization of BREP/NURBS in OpenGL.
Implement plate mode BREP/NURBS objects. Similar, if not identical, to plate mode BoTs, 'brep' objects need the ability to have a thickness described so you could automatically handle non-solid NURBS and sheet-metal style geometry without requiring surface solidity.
- Benefit: allows for import and visualization of BREP/NURBS surfaces that are not solid.
Implicit CSG to BREP/NURBS CSG test scripts
Develop test scripts for comparing conversion of implicit CSG to BREP/NURBS CSG
- Benefit: provides validation and verification via ray tracing.
Document the new BREP/NURBS primitive.
- Benefit: provides user documentation explaining capabilities, limitations, and benefits.
Implement data cache objects. Create new LIBRT API routines for storing cache data in a v5 container. This would amount to storing binary data into a 'binunif' object marked as hidden with attributes for date/time stamping and MD5 or SHA256 checksumming.
- Benefit: faster ray tracing runtime, applicable to other primitives (NMG, BoT).
Cache prep results
Cache BREP/NURBS prep results to a specified cache file.
- Benefit: faster ray tracing runtime for BREP/NURBS, user requested.
Improve BREP/NURBS wireframe. Investigate using knots on subcurves.
- Benefit: faster wireframe, more detailed close wireframes.
BREP/NURBS source code cleanup
Consolidate Owens and Reeves approaches to ray intersection.
- Benefit: improved code maintainability.
Implement an rt_heal(rt_db_internal *dbi); routine. The routine tightens up trimming curves and edge/vertex pairings so that they align perfectly while still preserving the topological structure.