Change Details

//Currently I'm just treating this as a personal project, but I thought it would be nice to have some public place to track progress.// Initial Design: https://wiki.blender.org/wiki/Modules/Physics_Nodes/Projects/EverythingNodes/CurveNodes [x] Basic design for data structures [x] Conversion from DNA `Curve` struct [x] Bezier [x] NURBS [x] Poly [x] Spline attributes [x] Cyclic [x] Length [x] Resolution [ ] Spline evaluation [x] Position calculation [x] Bezier [x] NURBS [x] Poly [x] Tangents [ ] Normals [x] Z-up method [x] Minimum twist method [ ] Tangent method [x] Apply tilts to evaluated normals [x] Evaluate control point indices and interpolation factors [ ] Different interpolation settings for Bezier curves [ ] Curve to Mesh node (Extrude profile) [x] Extrude single vertex [x] Extrude another spline [x] Set edge sharp flag based on sharp control points [x] Use evaluated spline radius [ ] Fill Caps option [ ] Add UV data [ ] 2D Curve to Mesh node [x] Investigate different triangulation methods [ ] Implement flat mesh generation [ ] Implement mesh with extrusion and bevel [x] Resample curve node [x] Add generic constant length curve evaluation [ ] Trim Curve node [x] Bezier support [ ] Fix bezier handles [ ] Poly support [ ] Convert NURBS to poly [x] Bezier auto handle recalculation [ ] Curve profile primitive node [ ] Conversion from `CurveProfile` to `CurveEval` [ ] Add a "Cyclic" option [ ] Option to draw without fill unless cyclic [ ] Builtin point attributes [x] Position [x] Radius [x] Tilt [ ] Bezier Handles [ ] NURBS weight [ ] Curve Deform node [x] Figure out how to deal with extrapolation [ ] Generic curve non-even sampling code [ ] Build deformation on top of sampling code [x] Change Direction node [x] Curve modifier stack changes [x] Refactor to storing arrays separately [x] Refactor to speed up poly splines [x] Add support for generic attributes [x] Support in attribute nodes [x] Join attribute when joining curves [x] Support in curve nodes, create APIs, etc. [x] Interpolation between point and spline domain [x] Add instancing directly on evaluated points [x] Curve from Edges node [x] Curve end points node [ ] Figure out design for curvature and length parameter attribute/data [ ] Implement curvature data [ ] Implement length parameter data I've limited this list to what I think the design is clear about. Other features may take a bit more design work before implementation. The WIP changes are in the `geometry-nodes-curve-support` branch.

//Currently I'm just treating this as a personal project, but I thought it would be nice to have some public place to track progress.// Initial Design: https://wiki.blender.org/wiki/Modules/Physics_Nodes/Projects/EverythingNodes/CurveNodes [x] Basic design for data structures [x] Conversion from DNA `Curve` struct [x] Bezier [x] NURBS [x] Poly [x] Spline attributes [x] Cyclic [x] Length [x] Resolution [ ] Spline evaluation [x] Position calculation [x] Bezier [x] NURBS [x] Poly [x] Tangents [ ] Normals [x] Z-up method [x] Minimum twist method [ ] Tangent method [x] Apply tilts to evaluated normals [x] Evaluate control point indices and interpolation factors [ ] Different interpolation settings for Bezier curves [ ] Curve to Mesh node (Extrude profile) [x] Extrude single vertex [x] Extrude another spline [x] Set edge sharp flag based on sharp control points [x] Use evaluated spline radius [ ] Fill Caps option [ ] Add UV data [ ] 2D Curve to Mesh node [x] Investigate different triangulation methods [x] Implement flat mesh generation [ ] Implement mesh with extrusion and bevel [x] Resample curve node [x] Add generic constant length curve evaluation [ ] Trim Curve node [x] Bezier support [x] Fix bezier handles [x] Poly support [ ] Figure out how to deal with NURBS [x] Bezier auto handle recalculation [ ] Curve profile primitive node [ ] Conversion from `CurveProfile` to `CurveEval` [ ] Add a "Cyclic" option [ ] Option to draw without fill unless cyclic [ ] Builtin point attributes [x] Position [x] Radius [x] Tilt [ ] Bezier Handles [ ] NURBS weight [ ] Curve Deform node [x] Figure out how to deal with extrapolation [ ] Generic curve non-even sampling code [ ] Build deformation on top of sampling code [x] Change Direction node [x] Curve modifier stack changes [x] Refactor to storing arrays separately [x] Refactor to speed up poly splines [x] Add support for generic attributes [x] Support in attribute nodes [x] Join attribute when joining curves [x] Support in curve nodes, create APIs, etc. [x] Interpolation between point and spline domain [x] Add instancing directly on evaluated points [x] Curve from Edges node [x] Curve end points node [ ] Figure out design for curvature and length parameter attribute/data [ ] Implement curvature data [ ] Implement length parameter data I've limited this list to what I think the design is clear about. Other features may take a bit more design work before implementation. The WIP changes are in the `geometry-nodes-curve-support` branch.

//Currently I'm just treating this as a personal project, but I thought it would be nice to have some public place to track progress.// Initial Design: https://wiki.blender.org/wiki/Modules/Physics_Nodes/Projects/EverythingNodes/CurveNodes [x] Basic design for data structures [x] Conversion from DNA `Curve` struct [x] Bezier [x] NURBS [x] Poly [x] Spline attributes [x] Cyclic [x] Length [x] Resolution [ ] Spline evaluation [x] Position calculation [x] Bezier [x] NURBS [x] Poly [x] Tangents [ ] Normals [x] Z-up method [x] Minimum twist method [ ] Tangent method [x] Apply tilts to evaluated normals [x] Evaluate control point indices and interpolation factors [ ] Different interpolation settings for Bezier curves [ ] Curve to Mesh node (Extrude profile) [x] Extrude single vertex [x] Extrude another spline [x] Set edge sharp flag based on sharp control points [x] Use evaluated spline radius [ ] Fill Caps option [ ] Add UV data [ ] 2D Curve to Mesh node [x] Investigate different triangulation methods [ x] Implement flat mesh generation [ ] Implement mesh with extrusion and bevel [x] Resample curve node [x] Add generic constant length curve evaluation [ ] Trim Curve node [x] Bezier support [ x] Fix bezier handles [ x] Poly support [ ] Convert NURBS to polyFigure out how to deal with NURBS [x] Bezier auto handle recalculation [ ] Curve profile primitive node [ ] Conversion from `CurveProfile` to `CurveEval` [ ] Add a "Cyclic" option [ ] Option to draw without fill unless cyclic [ ] Builtin point attributes [x] Position [x] Radius [x] Tilt [ ] Bezier Handles [ ] NURBS weight [ ] Curve Deform node [x] Figure out how to deal with extrapolation [ ] Generic curve non-even sampling code [ ] Build deformation on top of sampling code [x] Change Direction node [x] Curve modifier stack changes [x] Refactor to storing arrays separately [x] Refactor to speed up poly splines [x] Add support for generic attributes [x] Support in attribute nodes [x] Join attribute when joining curves [x] Support in curve nodes, create APIs, etc. [x] Interpolation between point and spline domain [x] Add instancing directly on evaluated points [x] Curve from Edges node [x] Curve end points node [ ] Figure out design for curvature and length parameter attribute/data [ ] Implement curvature data [ ] Implement length parameter data I've limited this list to what I think the design is clear about. Other features may take a bit more design work before implementation. The WIP changes are in the `geometry-nodes-curve-support` branch.