IfcOpenShell/IfcOpenShell
Oct 2024 – Apr 2026
18 Months active
Languages Used
PythonC++GLSLIFC
Technical Skills
API DevelopmentBIMBackend DevelopmentGeometry Processing3D Graphics3D Modeling
Bruno Perdigão
PROFILE
Bruno Perdigão
Over 18 months, contributed to IfcOpenShell/IfcOpenShell by building and refining advanced BIM modeling, geometry processing, and interactive editing workflows. Focused on robust feature delivery, the work included enhancements to snapping, raycasting, and aggregate handling, as well as improvements to polyline and wall tools for greater modeling accuracy. Leveraged Python, Blender API, and NumPy to optimize performance, maintainability, and precision, particularly in large-scale or complex assemblies. Addressed stability and usability through targeted bug fixes, code refactoring, and UI improvements, resulting in more reliable BIM data, smoother user experience, and maintainable code that supports evolving architectural and engineering requirements.
Overall Statistics
Feature vs Bugs
56%Features
Repository Contributions
251Total
Bugs
70
Commits
251
Features
88
Lines of code
10,468
Activity Months18
Your Network
58 peopleShared Repositories
58
Work History
April 2026
1 Commits
Apr 1, 2026April 2026 monthly summary for IfcOpenShell/IfcOpenShell. Focused on stabilizing interactive editing workflows by addressing snapping reliability when dynamic geometry changes occur during modal operations. No new features released this month; the emphasis was on correctness and robustness of the core editing experience.
1 Commits
Apr 1, 2026April 2026 monthly summary for IfcOpenShell/IfcOpenShell. Focused on stabilizing interactive editing workflows by addressing snapping reliability when dynamic geometry changes occur during modal operations. No new features released this month; the emphasis was on correctness and robustness of the core editing experience.
April 2026
March 2026
1 Commits • 1 Features
Mar 1, 2026March 2026: Improved object selection reliability in IfcOpenShell/IfcOpenShell through advanced raycasting and edge-intersection techniques, with snapping enhancements for objects partially behind the camera. This work reduces mis-selections in dense or off-screen views, enabling faster, more accurate model interaction and contributing to higher user productivity. Technologies demonstrated include advanced raycasting, edge-intersection algorithms, and snapping optimizations, aligning with business goals of smoother UX and reduced modeling time.
March 2026
1 Commits • 1 Features
Mar 1, 2026March 2026: Improved object selection reliability in IfcOpenShell/IfcOpenShell through advanced raycasting and edge-intersection techniques, with snapping enhancements for objects partially behind the camera. This work reduces mis-selections in dense or off-screen views, enabling faster, more accurate model interaction and contributing to higher user productivity. Technologies demonstrated include advanced raycasting, edge-intersection algorithms, and snapping optimizations, aligning with business goals of smoother UX and reduced modeling time.
February 2026
2 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary for IfcOpenShell/IfcOpenShell: Delivered targeted performance and accuracy improvements to x-ray mode raycasting and snap-point handling, enabling faster interactive inspection and more reliable snapping across visibility states.
2 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary for IfcOpenShell/IfcOpenShell: Delivered targeted performance and accuracy improvements to x-ray mode raycasting and snap-point handling, enabling faster interactive inspection and more reliable snapping across visibility states.
February 2026
January 2026
1 Commits • 1 Features
Jan 1, 2026Month: 2026-01 — IfcOpenShell/IfcOpenShell: Raycast Class Readability and Maintainability Enhancement. Refactored variable names for clarity and consistency in the Raycast class, improving readability and long-term maintainability. Commit: cafe5aa7f79023a6a8bb80d123e6f5521ec47e43 (Rename variable - small refactor). Major bugs fixed: none this month. Overall impact: cleaner core component, reduced onboarding time, and lowered risk for future changes, enabling faster feature delivery. Technologies/skills demonstrated: Python code refactoring, naming conventions, code readability, maintainability, and disciplined commit messaging.
January 2026
1 Commits • 1 Features
Jan 1, 2026Month: 2026-01 — IfcOpenShell/IfcOpenShell: Raycast Class Readability and Maintainability Enhancement. Refactored variable names for clarity and consistency in the Raycast class, improving readability and long-term maintainability. Commit: cafe5aa7f79023a6a8bb80d123e6f5521ec47e43 (Rename variable - small refactor). Major bugs fixed: none this month. Overall impact: cleaner core component, reduced onboarding time, and lowered risk for future changes, enabling faster feature delivery. Technologies/skills demonstrated: Python code refactoring, naming conventions, code readability, maintainability, and disciplined commit messaging.
December 2025
2 Commits • 2 Features
Dec 1, 2025December 2025: IfcOpenShell/IfcOpenShell delivered targeted performance and maintainability improvements that enhance interactive UX and set a foundation for future feature work. The month-focused efforts centered on accelerating wireframe intersection checks and simplifying the codebase to reduce technical debt, without altering functional behavior.
2 Commits • 2 Features
Dec 1, 2025December 2025: IfcOpenShell/IfcOpenShell delivered targeted performance and maintainability improvements that enhance interactive UX and set a foundation for future feature work. The month-focused efforts centered on accelerating wireframe intersection checks and simplifying the codebase to reduce technical debt, without altering functional behavior.
December 2025
October 2025
3 Commits • 1 Features
Oct 1, 2025October 2025 performance summary for IfcOpenShell/IfcOpenShell: Delivered a consolidated precision and snapping upgrade for curves and polylines, incorporating NumPy-based precision enhancements and a threshold-based control mechanism for polyline drawing. This work improves accuracy, robustness, and user trust in high-geometry workflows, particularly with large coordinate values. It also strengthens Blender integration by addressing snapping and precision edge cases.
October 2025
3 Commits • 1 Features
Oct 1, 2025October 2025 performance summary for IfcOpenShell/IfcOpenShell: Delivered a consolidated precision and snapping upgrade for curves and polylines, incorporating NumPy-based precision enhancements and a threshold-based control mechanism for polyline drawing. This work improves accuracy, robustness, and user trust in high-geometry workflows, particularly with large coordinate values. It also strengthens Blender integration by addressing snapping and precision edge cases.
September 2025
10 Commits • 2 Features
Sep 1, 2025September 2025: Delivered major enhancements to IfcOpenShell that improve modeling accuracy, data integrity, and user experience. Key features delivered include custom material layer offsets with UI controls for slabs and walls, and enhanced linked aggregates indexing during IFC import to maintain consistency across elements. Major bugs fixed include aggregate data integrity during refresh and a robust snapping system with orthographic/focal-length adaptations and visibility filtering. Overall impact: more reliable automatic placement, reduced rework, and higher confidence in BIM data; technologies demonstrated include IFCMaterialLayerSetUsage customization, linked aggregates psets, clipping planes, and adaptive snapping.
10 Commits • 2 Features
Sep 1, 2025September 2025: Delivered major enhancements to IfcOpenShell that improve modeling accuracy, data integrity, and user experience. Key features delivered include custom material layer offsets with UI controls for slabs and walls, and enhanced linked aggregates indexing during IFC import to maintain consistency across elements. Major bugs fixed include aggregate data integrity during refresh and a robust snapping system with orthographic/focal-length adaptations and visibility filtering. Overall impact: more reliable automatic placement, reduced rework, and higher confidence in BIM data; technologies demonstrated include IFCMaterialLayerSetUsage customization, linked aggregates psets, clipping planes, and adaptive snapping.
September 2025
August 2025
4 Commits
Aug 1, 2025August 2025 monthly summary: Delivered targeted robustness improvements in IfcOpenShell/IfcOpenShell focused on polyline extraction and IFC2X3 wall generation. Key outcomes include reduced error rates in the shape builder due to fixes in get_polyline_coords for IfcPolyline and improved extrusion angle handling and slab-to-wall conversion for IFC2X3 files. These changes enhance stability of geometry processing, accelerate downstream workflows (export/import, visualization), and improve maintainability through refactors and naming consistency. Technologies demonstrated include Python, NumPy, geometry processing, IFC data handling, ShapeBuilder integration, and code refactoring.
August 2025
4 Commits
Aug 1, 2025August 2025 monthly summary: Delivered targeted robustness improvements in IfcOpenShell/IfcOpenShell focused on polyline extraction and IFC2X3 wall generation. Key outcomes include reduced error rates in the shape builder due to fixes in get_polyline_coords for IfcPolyline and improved extrusion angle handling and slab-to-wall conversion for IFC2X3 files. These changes enhance stability of geometry processing, accelerate downstream workflows (export/import, visualization), and improve maintainability through refactors and naming consistency. Technologies demonstrated include Python, NumPy, geometry processing, IFC data handling, ShapeBuilder integration, and code refactoring.
July 2025
7 Commits • 2 Features
Jul 1, 2025July 2025 monthly summary for IfcOpenShell/IfcOpenShell focused on stabilizing aggregate handling, enhancing Linked Aggregate workflows, and maintaining code quality. Accumulated improvements reduce user-reported selection errors and preserve data integrity across refresh cycles, while keeping compatibility with existing files.
7 Commits • 2 Features
Jul 1, 2025July 2025 monthly summary for IfcOpenShell/IfcOpenShell focused on stabilizing aggregate handling, enhancing Linked Aggregate workflows, and maintaining code quality. Accumulated improvements reduce user-reported selection errors and preserve data integrity across refresh cycles, while keeping compatibility with existing files.
July 2025
June 2025
5 Commits • 1 Features
Jun 1, 2025June 2025 Monthly Summary: Delivered key improvements to the measurement rendering and geometry handling in IfcOpenShell, with an emphasis on maintainability, accuracy, and robustness. The work enhances design review fidelity, reduces edge-case bugs, and strengthens wall topology operations that are critical for BIM workflows.
June 2025
5 Commits • 1 Features
Jun 1, 2025June 2025 Monthly Summary: Delivered key improvements to the measurement rendering and geometry handling in IfcOpenShell, with an emphasis on maintainability, accuracy, and robustness. The work enhances design review fidelity, reduces edge-case bugs, and strengthens wall topology operations that are critical for BIM workflows.
May 2025
12 Commits • 4 Features
May 1, 2025May 2025 delivered robust BIM modeling workflows and stability improvements in IfcOpenShell/IfcOpenShell. Key features include Polylines and BIM Walls enhancements, Aggregation/Visualization improvements, Material Profile management upgrades, and Bonsai Decorator stability. Implemented precision fixes, UI state hygiene, and performance optimizations that improve model reliability, user experience, and material workflow efficiency.
12 Commits • 4 Features
May 1, 2025May 2025 delivered robust BIM modeling workflows and stability improvements in IfcOpenShell/IfcOpenShell. Key features include Polylines and BIM Walls enhancements, Aggregation/Visualization improvements, Material Profile management upgrades, and Bonsai Decorator stability. Implemented precision fixes, UI state hygiene, and performance optimizations that improve model reliability, user experience, and material workflow efficiency.
May 2025
April 2025
8 Commits • 3 Features
Apr 1, 2025April 2025 monthly summary for IfcOpenShell/IfcOpenShell. Focused on performance, accuracy, and UX improvements across rendering, measurement, and aggregation workflows. Key features delivered: - Raycasting visibility and object filtering improvements: added visible-object filtering before 2D bounding box creation, introduced simple AABB-based viewport checks to prune off-screen or distant bounding boxes, optimizing rendering and object processing. - Adaptive snapping thresholds based on zoom level: dynamic adjustment of snap thresholds tied to viewport zoom to maintain consistent snapping precision across zoom levels. - Multi-level aggregate mode enhancements: improved handling and navigation of nested aggregates with state tracking of previous/target aggregates to support complex UI flows. Major bugs fixed: - Measure Tool POLY_AREA display fix: ensured area calculations and highlights apply only when POLY_AREA is active and renamed AREA checks to POLY_AREA to prevent mis-highlighting. - Extrusion profile offset correction: corrected transformations to use the perpendicular component of the offset for more reliable extrusion profile editing. Overall impact and accomplishments: - Performance: reduced rendering load and processing by filtering unseen objects and bounding boxes early in the pipeline; snapping remains precise across zoom levels. - Measurement & geometry accuracy: improved area highlighting behavior and more robust extrusion profile edits. - UX for complex models: better navigation for nested aggregates, enabling smoother work on multi-level assemblies. Technologies/skills demonstrated: - Geometry and rendering optimizations (raycasting, AABB filtering, viewport culling) - Dynamic UI state management for multi-level aggregates - Geometry math for POLY_AREA and extrusion transformations - Version control traceability through clear, commit-referenced changes
April 2025
8 Commits • 3 Features
Apr 1, 2025April 2025 monthly summary for IfcOpenShell/IfcOpenShell. Focused on performance, accuracy, and UX improvements across rendering, measurement, and aggregation workflows. Key features delivered: - Raycasting visibility and object filtering improvements: added visible-object filtering before 2D bounding box creation, introduced simple AABB-based viewport checks to prune off-screen or distant bounding boxes, optimizing rendering and object processing. - Adaptive snapping thresholds based on zoom level: dynamic adjustment of snap thresholds tied to viewport zoom to maintain consistent snapping precision across zoom levels. - Multi-level aggregate mode enhancements: improved handling and navigation of nested aggregates with state tracking of previous/target aggregates to support complex UI flows. Major bugs fixed: - Measure Tool POLY_AREA display fix: ensured area calculations and highlights apply only when POLY_AREA is active and renamed AREA checks to POLY_AREA to prevent mis-highlighting. - Extrusion profile offset correction: corrected transformations to use the perpendicular component of the offset for more reliable extrusion profile editing. Overall impact and accomplishments: - Performance: reduced rendering load and processing by filtering unseen objects and bounding boxes early in the pipeline; snapping remains precise across zoom levels. - Measurement & geometry accuracy: improved area highlighting behavior and more robust extrusion profile edits. - UX for complex models: better navigation for nested aggregates, enabling smoother work on multi-level assemblies. Technologies/skills demonstrated: - Geometry and rendering optimizations (raycasting, AABB filtering, viewport culling) - Dynamic UI state management for multi-level aggregates - Geometry math for POLY_AREA and extrusion transformations - Version control traceability through clear, commit-referenced changes
March 2025
30 Commits • 15 Features
Mar 1, 2025March 2025 (Month: 2025-03) focused on stability, usability, and modeling accuracy for IfcOpenShell/IfcOpenShell. The work delivered in this period spans slab geometry and rotation fixes, measurement/tool improvements, and snapping enhancements, with strong emphasis on enabling non-project workflows and dimension unit customization. In addition, extensive refactors and maintenance tasks improved code quality and long-term maintainability.
30 Commits • 15 Features
Mar 1, 2025March 2025 (Month: 2025-03) focused on stability, usability, and modeling accuracy for IfcOpenShell/IfcOpenShell. The work delivered in this period spans slab geometry and rotation fixes, measurement/tool improvements, and snapping enhancements, with strong emphasis on enabling non-project workflows and dimension unit customization. In addition, extensive refactors and maintenance tasks improved code quality and long-term maintainability.
March 2025
February 2025
39 Commits • 8 Features
Feb 1, 2025February 2025 monthly summary for IfcOpenShell/IfcOpenShell focusing on delivering reliable geometry tooling, cross-plane capabilities, and measurement accuracy that translate into business value for designers and engineers using the toolset.
February 2025
39 Commits • 8 Features
Feb 1, 2025February 2025 monthly summary for IfcOpenShell/IfcOpenShell focusing on delivering reliable geometry tooling, cross-plane capabilities, and measurement accuracy that translate into business value for designers and engineers using the toolset.
January 2025
59 Commits • 18 Features
Jan 1, 2025January 2025 monthly summary for IfcOpenShell/IfcOpenShell focusing on delivering UX enhancements, expanded aggregation/nesting workflows, and robust geometry tooling that improves modeling accuracy and developer productivity. The team stabilized and extended core workflows, enabling faster modeling iterations and more predictable IFC-derived geometry.
59 Commits • 18 Features
Jan 1, 2025January 2025 monthly summary for IfcOpenShell/IfcOpenShell focusing on delivering UX enhancements, expanded aggregation/nesting workflows, and robust geometry tooling that improves modeling accuracy and developer productivity. The team stabilized and extended core workflows, enabling faster modeling iterations and more predictable IFC-derived geometry.
January 2025
December 2024
23 Commits • 12 Features
Dec 1, 2024December 2024 monthly summary for IfcOpenShell/IfcOpenShell focusing on UI usability, performance, and architectural editing workflows. Delivered a set of UI improvements, expanded aggregate-mode capabilities, new architectural editing tools, and robust snapping/intersection enhancements. The work enhances modeling speed, accuracy, and large-project stability while reinforcing the BIM editing toolkit for complex geometries and workflows.
December 2024
23 Commits • 12 Features
Dec 1, 2024December 2024 monthly summary for IfcOpenShell/IfcOpenShell focusing on UI usability, performance, and architectural editing workflows. Delivered a set of UI improvements, expanded aggregate-mode capabilities, new architectural editing tools, and robust snapping/intersection enhancements. The work enhances modeling speed, accuracy, and large-project stability while reinforcing the BIM editing toolkit for complex geometries and workflows.
November 2024
42 Commits • 17 Features
Nov 1, 2024November 2024 monthly summary for IfcOpenShell/IfcOpenShell: Focused on delivering meaningful business value through a mix of feature enhancements, reliability fixes, and performance-oriented refactors across the IFC workflow. Key progress includes enriched IFC data, improved measurement and drawing tooling, and a comprehensive aggregation framework overhaul that enhances large-assembly workflows while maintaining data integrity and maintainability.
42 Commits • 17 Features
Nov 1, 2024November 2024 monthly summary for IfcOpenShell/IfcOpenShell: Focused on delivering meaningful business value through a mix of feature enhancements, reliability fixes, and performance-oriented refactors across the IFC workflow. Key progress includes enriched IFC data, improved measurement and drawing tooling, and a comprehensive aggregation framework overhaul that enhances large-assembly workflows while maintaining data integrity and maintainability.
November 2024
October 2024
2 Commits
Oct 1, 2024Concise monthly summary for 2024-10 focused on business value and technical achievements for IfcOpenShell/IfcOpenShell. Key features delivered: BIM Module: Wall Join Z-Position Fix and Robust Old Connection Removal. Major bugs fixed: align base points' Z with wall Z to improve wall join accuracy; enhance remove_old_connections to correctly handle single-object processing and ensure removal of connections even if related entity is not present in old_to_new keys. Overall impact and accomplishments: increased wall join accuracy and reliability, reducing downstream rework and manual troubleshooting; improved data integrity across design-to-fabrication workflows. Technologies/skills demonstrated: debugging and refactoring in BIM module, issue tracing and remediation, contribution to design discussions (#4298, #3692), commits tied to concrete fixes for traceability.
October 2024
2 Commits
Oct 1, 2024Concise monthly summary for 2024-10 focused on business value and technical achievements for IfcOpenShell/IfcOpenShell. Key features delivered: BIM Module: Wall Join Z-Position Fix and Robust Old Connection Removal. Major bugs fixed: align base points' Z with wall Z to improve wall join accuracy; enhance remove_old_connections to correctly handle single-object processing and ensure removal of connections even if related entity is not present in old_to_new keys. Overall impact and accomplishments: increased wall join accuracy and reliability, reducing downstream rework and manual troubleshooting; improved data integrity across design-to-fabrication workflows. Technologies/skills demonstrated: debugging and refactoring in BIM module, issue tracing and remediation, contribution to design discussions (#4298, #3692), commits tied to concrete fixes for traceability.
Activity
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Quality Metrics
Correctness85.0%
Maintainability85.2%
Architecture81.4%
Performance77.2%
AI Usage20.2%
Skills & Technologies
Programming Languages
C++GLSLIFCPython
Technical Skills
3D Graphics3D Graphics Programming3D Modeling3D Modeling Tools3D Visualization3D modelingAPI DevelopmentAdd-on DevelopmentAggregate OperationsAlgorithm OptimizationBIMBIM DevelopmentBIM IntegrationBIM Software DevelopmentBIM Tools
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline