add primitive outlining image pass for image-based wireframe rendering

[jeffamstutz]

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[Copilot]

Pull request overview

Adds a new post-processing image pass to outline per-primitive boundaries (using objectId+primitiveId) for image-based wireframe rendering, with UI controls that are gated on ANARI primitive-id support.

Changes:

• Introduces PrimitiveOutlineRenderPass and wires it into the rendering ImagePipeline.
• Adds viewport UI + settings persistence for “Outline Primitives”, and enables required ID/primitive-id channels only when needed.
• Extends CPU/CUDA outline algorithms with outlinePrimitives().

Reviewed changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
tsd/src/tsd/ui/imgui/windows/Viewport.h	Adds state and pass pointer for primitive outlining and device capability flag.
tsd/src/tsd/ui/imgui/windows/Viewport.cpp	Detects primitive-id support, adds UI toggle, persists setting, and enables/disables primitive outline pass + required channels.
tsd/src/tsd/rendering/pipeline/passes/PrimitiveOutlineRenderPass.h	Declares new image pass for primitive outlining with configurable color/thickness.
tsd/src/tsd/rendering/pipeline/passes/PrimitiveOutlineRenderPass.cpp	Implements CPU/CUDA dispatch for outlining primitives based on object/primitive IDs.
tsd/src/tsd/rendering/pipeline/ImagePipeline.h	Exposes the new pass in pipeline includes.
tsd/src/tsd/rendering/CMakeLists.txt	Adds new pass source and CUDA language properties when CUDA is enabled.
tsd/src/tsd/algorithms/cuda/outline.hpp	Declares CUDA outlinePrimitives() overloads.
tsd/src/tsd/algorithms/cuda/outline.cu	Implements CUDA primitive outlining and refactors shading to accept outline color.
tsd/src/tsd/algorithms/cpu/outline.hpp	Declares CPU outlinePrimitives().
tsd/src/tsd/algorithms/cpu/outline.cpp	Implements CPU primitive outlining and refactors shading to accept outline color.

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[Copilot]

showOnlySelected is loaded from the settings node twice (lines 296 and 299). This duplicated read is unnecessary and makes it harder to reason about configuration precedence; remove the duplicate call.