IfcOpenShell/IfcOpenShell
Oct 2024 – Sep 2025
12 Months active
Languages Used
PythonC++GLSLIFC
Technical Skills
API DevelopmentBIMBackend DevelopmentGeometry Processing3D Graphics3D Modeling
Bruno Perdigão
PROFILE
Bruno Perdigão
Bruno contributed extensively to IfcOpenShell, building and refining BIM modeling workflows that improved geometry accuracy, data integrity, and user experience. He engineered robust snapping systems, custom material layer offsets, and advanced aggregate handling, addressing both architectural editing and backend geometry processing. Using Python and the Blender API, Bruno delivered features such as adaptive snapping, polyline enhancements, and multi-level aggregation, while also resolving complex bugs in wall joining, extrusion, and IFC import workflows. His technical approach emphasized maintainable code, performance optimization, and UI clarity, resulting in a more reliable, efficient, and scalable BIM toolset for designers and engineers.
Overall Statistics
Feature vs Bugs
54%Features
Repository Contributions
241Total
Bugs
69
Commits
241
Features
82
Lines of code
9,389
Activity Months12
Your Network
45 people
Work History
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%
Architecture81.2%
Performance76.8%
AI Usage20.0%
Skills & Technologies
Programming Languages
C++GLSLIFCPython
Technical Skills
3D Graphics3D Modeling3D Modeling Tools3D VisualizationAPI DevelopmentAdd-on DevelopmentAggregate OperationsBIMBIM DevelopmentBIM IntegrationBIM Software DevelopmentBIM ToolsBackend DevelopmentBlenderBlender API
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline