Editing NURBS TODO
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| − | + | * Optimize BREP/NURBS ray tracing | |
| − | * Benefit: | + | ** Benefit: faster ray tracing runtime |
| − | * | + | ** References: |
| − | * References: | + | *** src/librt/primitives/brep |
| − | * | + | *** src/librt/opennurbs_ext.* |
| − | ** src/librt/primitives/brep | ||
| − | ** src/librt/opennurbs_ext.* | ||
| − | + | * Optimize BREP/NURBS prep | |
| − | + | ** Benefit: faster ray tracing runtime, user requested. | |
| − | * Benefit: faster ray tracing | + | *** src/librt/primitives/brep/brep.cpp:rt_brep_prep() |
| − | + | *** src/librt/opennurbs_ext.* | |
| − | * | ||
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| − | ** src/librt/primitives/brep/brep.cpp:rt_brep_prep() | ||
| − | ** src/librt/opennurbs_ext.* | ||
| − | + | * Implement conversion of implicit primitives to BREP/NURBS primitives. | |
| − | Implement | + | ** Partially complete, primitives are fixed at origin, some primitives unimplemented. |
| − | * Benefit: partial requirement for interactive visualization of implicit CSG geometry in OpenGL | + | ** Benefit: partial requirement for interactive visualization of implicit CSG geometry in OpenGL. |
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| − | + | * Implement conversion of BREP/NURBS to NMG. | |
| − | Implement conversion of BREP/NURBS to NMG. | + | ** Benefit: partial requirement for export and interactive visualization of BREP/NURBS in OpenGL. |
| − | * Benefit: requirement for | ||
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| − | + | * Identify useful concepts implemented in the old BSPLINE/NURBS code that are not present in openNURBS. | |
| − | Identify useful concepts implemented in the old BSPLINE/NURBS code that are not present in openNURBS. | + | ** Benefit: code reuse, potentially very useful functionality. |
| − | * Benefit: code reuse, potentially very useful functionality. | ||
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| − | + | * Port any useful BSPLINE/NURBS code to openNURBS data structures and routines. | |
| − | 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. |
| − | * Benefit: code reduction, allows the old BSPLINE/NURBS code to be removed after functionality is migrated. | ||
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| − | + | * Implement boolean evaluation of BREP/NURBS surfaces. | |
| − | Implement boolean evaluation of BREP/NURBS surfaces. | + | ** Benefit: partial requirement for interactive visualization of BREP/NURBS in OpenGL. |
| − | * Benefit: partial requirement for interactive visualization of BREP/NURBS in OpenGL. | ||
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| − | + | * 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. | |
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| − | + | * Develop test scripts for comparing conversion of implicit CSG to BREP/NURBS CSG | |
| − | + | ** Benefit: provides validation and verification via ray tracing. | |
| − | * Benefit: provides | ||
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| − | + | * Document the new BREP/NURBS primitive. | |
| − | + | ** Benefit: provides user documentation explaining capabilities, limitations, and benefits. | |
| − | * Benefit: | ||
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| − | + | * 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: | + | ** Benefit: faster ray tracing runtime, applicable to other primitives (NMG, BoT). |
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| − | + | * Cache BREP/NURBS prep results to a specified cache file. | |
| − | 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. | + | ** 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. |
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| + | * 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. | ||
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| + | * Write an report on using NURBS for analysis purposes. | ||
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| + | * Perform analytic comparison of BREP/NURBS and BoT geometry | ||
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| + | * Perform analytic comparison of BREP/NURBS CSG and implicit CSG geometry | ||
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| + | * Implement support for rotation, scaling, and translations. | ||
