BLOKCED BY VTK MERGE DO NOT MERGE feat(webgpu): experimental WebGPU render backend for GenericViewport stacks and MPR#2796
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sedghi wants to merge 9 commits into
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BLOKCED BY VTK MERGE DO NOT MERGE feat(webgpu): experimental WebGPU render backend for GenericViewport stacks and MPR#2796sedghi wants to merge 9 commits into
sedghi wants to merge 9 commits into
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📝 WalkthroughWalkthroughAdds WebGPU planar image-stack and volume-slice rendering with shared viewport windows, backend registration, registry-aware routing, segmentation integration, interactive examples, diagnostics, and Generic Viewports catalog entries. ChangesWebGPU planar rendering
Estimated code review effort: 4 (Complex) | ~75 minutes Possibly related issues
Possibly related PRs
Suggested reviewers: Sequence Diagram(s)sequenceDiagram
participant Example
participant RenderingEngine
participant WebGPURenderPath
participant WebGPUViewportWindow
participant Canvas
Example->>RenderingEngine: register and select WebGPU backend
RenderingEngine->>WebGPURenderPath: create image or volume path
WebGPURenderPath->>WebGPUViewportWindow: acquire window and render
WebGPUViewportWindow->>Canvas: blit completed WebGPU output
WebGPURenderPath->>RenderingEngine: emit image-rendered state
🚥 Pre-merge checks | ✅ 2 | ❌ 3❌ Failed checks (3 warnings)
✅ Passed checks (2 passed)
✨ Finishing Touches📝 Generate docstrings
🧪 Generate unit tests (beta)
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Actionable comments posted: 1
🧹 Nitpick comments (2)
packages/core/src/RenderingEngine/GenericViewport/Planar/PlanarResolvedView.ts (1)
426-432: 📐 Maintainability & Code Quality | 🔵 Trivial | ⚡ Quick winAdd
currentImageto the shared image-rendering shape
PlanarRenderingis a closed union, but this branch also handles extension image modes likewebgpuImage, and those states already carrycurrentImage. Move that field onto the shared image-rendering type instead of casting here so the branch stays type-safe.🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the rest with a brief reason, keep changes minimal, and validate. In `@packages/core/src/RenderingEngine/GenericViewport/Planar/PlanarResolvedView.ts` around lines 426 - 432, Update the shared image-rendering type used by the closed PlanarRendering union to include the optional currentImage field, then simplify the image selection in the isImageRenderMode branch of PlanarResolvedView by accessing rendering.currentImage directly and removing the local cast. Ensure all image-mode variants, including extension modes, satisfy the updated type.packages/core/src/RenderingEngine/GenericViewport/Planar/PlanarViewReferenceController.ts (1)
618-621: 📐 Maintainability & Code Quality | 🔵 Trivial | ⚡ Quick winConsider using
isVolumeRenderModefor consistency with the registry-aware approach.
resolveVolumeReferenceImageIdIndexstill checksrendering.renderMode !== ActorRenderMode.CPU_VOLUME && rendering.renderMode !== ActorRenderMode.VTK_VOLUME_SLICEexplicitly. While correct for current core volume modes, this won't recognize future registered volume backends (e.g., a hypothetical WebGPU volume mode).getViewportLabelmapRenderMode.tsin this same PR already usesisVolumeRenderModefor this purpose — aligning here would keep the pattern consistent.This is deferred-friendly since the WebGPU backend is image-only in this PR.
♻️ Optional refactor for consistency
if ( - rendering.renderMode !== ActorRenderMode.CPU_VOLUME && - rendering.renderMode !== ActorRenderMode.VTK_VOLUME_SLICE + !isVolumeRenderMode(rendering.renderMode) ) { return; }🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the rest with a brief reason, keep changes minimal, and validate. In `@packages/core/src/RenderingEngine/GenericViewport/Planar/PlanarViewReferenceController.ts` around lines 618 - 621, Replace the explicit CPU_VOLUME and VTK_VOLUME_SLICE checks in resolveVolumeReferenceImageIdIndex with the registry-aware isVolumeRenderMode helper, matching getViewportLabelmapRenderMode.ts. Preserve the existing non-volume control flow while allowing future registered volume render modes.
🤖 Prompt for all review comments with AI agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
Inline comments:
In
`@packages/core/src/RenderingEngine/GenericViewport/Planar/WebGPUImageMapperRenderPath.ts`:
- Around line 124-168: Ensure addData() releases the acquired WebGPU window when
setup fails. Wrap the setup from acquireWebGPUViewportWindow through
actor/rendering initialization in try/catch, call
releaseWebGPUViewportWindow(ctx.viewportId) in the catch before rethrowing, and
preserve normal ownership for successful setup and removeData().
---
Nitpick comments:
In
`@packages/core/src/RenderingEngine/GenericViewport/Planar/PlanarResolvedView.ts`:
- Around line 426-432: Update the shared image-rendering type used by the closed
PlanarRendering union to include the optional currentImage field, then simplify
the image selection in the isImageRenderMode branch of PlanarResolvedView by
accessing rendering.currentImage directly and removing the local cast. Ensure
all image-mode variants, including extension modes, satisfy the updated type.
In
`@packages/core/src/RenderingEngine/GenericViewport/Planar/PlanarViewReferenceController.ts`:
- Around line 618-621: Replace the explicit CPU_VOLUME and VTK_VOLUME_SLICE
checks in resolveVolumeReferenceImageIdIndex with the registry-aware
isVolumeRenderMode helper, matching getViewportLabelmapRenderMode.ts. Preserve
the existing non-volume control flow while allowing future registered volume
render modes.
🪄 Autofix (Beta)
Fix all unresolved CodeRabbit comments on this PR:
- Push a commit to this branch (recommended)
- Create a new PR with the fixes
ℹ️ Review info
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Review profile: CHILL
Plan: Pro Plus
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📒 Files selected for processing (14)
packages/core/examples/genericWebGPUStack/index.tspackages/core/src/RenderingEngine/GenericViewport/Planar/PlanarResolvedView.tspackages/core/src/RenderingEngine/GenericViewport/Planar/PlanarViewReferenceController.tspackages/core/src/RenderingEngine/GenericViewport/Planar/WebGPUImageMapperRenderPath.tspackages/core/src/RenderingEngine/GenericViewport/Planar/planarRenderPathProjection.tspackages/core/src/RenderingEngine/GenericViewport/Planar/planarViewReference.tspackages/core/src/RenderingEngine/GenericViewport/Planar/vtkWebGPUModules.d.tspackages/core/src/RenderingEngine/GenericViewport/Planar/webgpuViewportRenderWindow.tspackages/core/src/RenderingEngine/helpers/registerWebGPURenderBackend.tspackages/core/src/index.tspackages/core/src/types/RenderBackendRegistry.tspackages/tools/src/stateManagement/segmentation/helpers/getViewportLabelmapRenderMode.tspackages/tools/src/tools/displayTools/Labelmap/labelmapActorStyle.tsutils/ExampleRunner/example-info.json
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| const window = acquireWebGPUViewportWindow(ctx.viewportId); | ||
| this.window = window; | ||
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||
| // 16-bit handling: the vtk.js WebGPU texture manager uploads non-8-bit | ||
| // scalar types (Int16/Uint16/Float) as r16float (half-float). There is no | ||
| // norm16 equivalent in WebGPU, so precision matches the WebGL | ||
| // no-EXT_texture_norm16 fallback path. | ||
| const mapper = vtkImageMapper.newInstance(); | ||
| const actor = vtkImageSlice.newInstance(); | ||
| const imageData = | ||
| payload.imageData ?? createVTKImageDataFromImage(payload.image); | ||
|
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||
| ctx.display.activateRenderMode(WEBGPU_IMAGE_RENDER_MODE); | ||
| mapper.setInputData(imageData); | ||
| actor.setMapper(mapper); | ||
| // Multi-component images (e.g. RGB ultrasound) must render as direct | ||
| // color; see VtkImageMapperRenderPath. | ||
| if (imageData.getPointData().getScalars().getNumberOfComponents() > 1) { | ||
| actor.getProperty().setIndependentComponents(false); | ||
| } | ||
| window.renderer.addActor(actor); | ||
|
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||
| const rendering: PlanarWebGPUImageRendering = { | ||
| renderMode: WEBGPU_IMAGE_RENDER_MODE, | ||
| actorEntryUID: uuidv4(), | ||
| actor, | ||
| currentImage: payload.image, | ||
| mapper, | ||
| imageData, | ||
| useWorldCoordinateImageData: payload.useWorldCoordinateImageData, | ||
| currentImageIdIndex: payload.initialImageIdIndex ?? 0, | ||
| defaultVOIRange: getDefaultImageVOIRange(payload.image), | ||
| dataPresentation: undefined, | ||
| loadRequestId: 0, | ||
| }; | ||
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||
| // Only the source binding drives the slice scrollbar; see | ||
| // VtkImageMapperRenderPath. | ||
| if (options.role !== 'overlay') { | ||
| triggerPlanarNewImage(ctx, { | ||
| image: payload.image, | ||
| imageIdIndex: payload.initialImageIdIndex ?? 0, | ||
| }); | ||
| } | ||
|
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🩺 Stability & Availability | 🟡 Minor | ⚡ Quick win
🧩 Analysis chain
🏁 Script executed:
#!/bin/bash
set -euo pipefail
echo '--- outline target file ---'
ast-grep outline packages/core/src/RenderingEngine/GenericViewport/Planar/WebGPUImageMapperRenderPath.ts --view expanded || true
echo '--- relevant slice ---'
sed -n '1,260p' packages/core/src/RenderingEngine/GenericViewport/Planar/WebGPUImageMapperRenderPath.ts
echo '--- search acquire/release helpers ---'
rg -n "acquireWebGPUViewportWindow|releaseWebGPUViewportWindow" packages/core/src -S
echo '--- search for try/catch or cleanup in webgpu image mapper path ---'
rg -n "removeData|releaseWebGPUViewportWindow|acquireWebGPUViewportWindow|WebGPUImageMapperRenderPath" packages/core/src/RenderingEngine/GenericViewport/Planar -SRepository: cornerstonejs/cornerstone3D
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echo '--- webgpuViewportRenderWindow.ts ---'
sed -n '1,220p' packages/core/src/RenderingEngine/GenericViewport/Planar/webgpuViewportRenderWindow.ts
echo '--- WebGPUImageMapperRenderPath removeData slice ---'
sed -n '410,460p' packages/core/src/RenderingEngine/GenericViewport/Planar/WebGPUImageMapperRenderPath.ts
echo '--- inspect createVTKImageDataFromImage references for throw-prone code ---'
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rg -n "\.addData\(" packages/core/src/RenderingEngine -S
echo '--- RenderPathAttachment / mount flow ---'
sed -n '1,260p' packages/core/src/RenderingEngine/GenericViewport/Planar/PlanarMountedData.ts
echo '--- viewport / render path orchestration around binding add ---'
sed -n '1,260p' packages/core/src/RenderingEngine/GenericViewport/Planar/PlanarViewport.ts
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Release the WebGPU window on setup failure.
addData() acquires the per-viewport WebGPU window before scene setup completes. If createVTKImageDataFromImage, scalar access, or actor wiring throws, removeData() is never returned, so the refcounted window is left alive. Wrap this block in try/catch and call releaseWebGPUViewportWindow(ctx.viewportId) on error.
🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
In
`@packages/core/src/RenderingEngine/GenericViewport/Planar/WebGPUImageMapperRenderPath.ts`
around lines 124 - 168, Ensure addData() releases the acquired WebGPU window
when setup fails. Wrap the setup from acquireWebGPUViewportWindow through
actor/rendering initialization in try/catch, call
releaseWebGPUViewportWindow(ctx.viewportId) in the catch before rethrowing, and
preserve normal ownership for successful setup and removeData().
Contributor
|
Nice 👍🏼 |
sedghi
changed the title
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⚠️ Outside diff range comments (1)
packages/core/src/RenderingEngine/GenericViewport/Planar/planarViewReference.ts (1)
265-286: 🎯 Functional Correctness | 🟠 Major | ⚡ Quick winUse
isVolumeRenderModehere sowebgpuVolumegets a volume view-reference ID
getPlanarViewReferenceIdstill hard-codesActorRenderMode.CPU_VOLUME/VTK_VOLUME_SLICE.webgpuVolumeis a volume mode elsewhere in this path, so it falls through to theimageId:fallback instead ofgetVolumeViewReferenceId(...).🐛 Proposed fix
- if ( - rendering.renderMode === ActorRenderMode.CPU_VOLUME || - rendering.renderMode === ActorRenderMode.VTK_VOLUME_SLICE - ) { + if (isVolumeRenderMode(rendering.renderMode)) {🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the rest with a brief reason, keep changes minimal, and validate. In `@packages/core/src/RenderingEngine/GenericViewport/Planar/planarViewReference.ts` around lines 265 - 286, Update getPlanarViewReferenceId to use the existing isVolumeRenderMode helper instead of checking only ActorRenderMode.CPU_VOLUME and ActorRenderMode.VTK_VOLUME_SLICE, ensuring webgpuVolume and all supported volume modes enter the getVolumeViewReferenceId path.
🧹 Nitpick comments (1)
packages/core/examples/genericWebGPUOrtho/index.ts (1)
335-347: 🩺 Stability & Availability | 🔵 Trivial | 💤 Low valueConsider adding error handling for the discarded scroll promise.
void viewport.scroll(delta).then(...)silently swallows rejections. In an example this is low-impact, but adding a.catch()would surface errors during debugging.♻️ Optional improvement
- void viewport.scroll(delta).then(() => viewport.render()); + viewport.scroll(delta).then(() => viewport.render()).catch(console.error);🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the rest with a brief reason, keep changes minimal, and validate. In `@packages/core/examples/genericWebGPUOrtho/index.ts` around lines 335 - 347, Add rejection handling to the promise chain in scrollViewports so failures from viewport.scroll(delta) or viewport.render() are surfaced during debugging; append a catch handler that logs the error with clear context while preserving the existing scroll-then-render behavior.
🤖 Prompt for all review comments with AI agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
Outside diff comments:
In
`@packages/core/src/RenderingEngine/GenericViewport/Planar/planarViewReference.ts`:
- Around line 265-286: Update getPlanarViewReferenceId to use the existing
isVolumeRenderMode helper instead of checking only ActorRenderMode.CPU_VOLUME
and ActorRenderMode.VTK_VOLUME_SLICE, ensuring webgpuVolume and all supported
volume modes enter the getVolumeViewReferenceId path.
---
Nitpick comments:
In `@packages/core/examples/genericWebGPUOrtho/index.ts`:
- Around line 335-347: Add rejection handling to the promise chain in
scrollViewports so failures from viewport.scroll(delta) or viewport.render() are
surfaced during debugging; append a catch handler that logs the error with clear
context while preserving the existing scroll-then-render behavior.
ℹ️ Review info
⚙️ Run configuration
Configuration used: defaults
Review profile: CHILL
Plan: Pro Plus
Run ID: 5565ce39-5251-4e74-ac70-4bfb54f44b5f
📒 Files selected for processing (19)
packages/core/examples/genericWebGPUOrtho/index.tspackages/core/src/RenderingEngine/GenericViewport/Planar/DefaultPlanarDataProvider.tspackages/core/src/RenderingEngine/GenericViewport/Planar/PlanarLegacyCompatibilityController.tspackages/core/src/RenderingEngine/GenericViewport/Planar/PlanarResolvedView.tspackages/core/src/RenderingEngine/GenericViewport/Planar/PlanarViewReferenceController.tspackages/core/src/RenderingEngine/GenericViewport/Planar/PlanarViewport.tspackages/core/src/RenderingEngine/GenericViewport/Planar/PlanarViewportLegacyAdapter.tspackages/core/src/RenderingEngine/GenericViewport/Planar/WebGPUImageMapperRenderPath.tspackages/core/src/RenderingEngine/GenericViewport/Planar/WebGPUVolumeSliceRenderPath.tspackages/core/src/RenderingEngine/GenericViewport/Planar/planarViewReference.tspackages/core/src/RenderingEngine/GenericViewport/Planar/webgpuViewportRenderWindow.tspackages/core/src/RenderingEngine/helpers/registerWebGPURenderBackend.tspackages/core/src/index.tspackages/tools/src/stateManagement/segmentation/helpers/labelmapImageMapperSupport.tspackages/tools/src/tools/displayTools/Labelmap/labelmapRenderPlan/planarGenericVolumeLabelmap.tspackages/tools/src/tools/displayTools/Labelmap/labelmapRenderPlan/volumeSliceImageMapperPlan.tspackages/tools/src/tools/displayTools/Labelmap/volumeLabelmapSliceData.tspackages/tools/src/tools/segmentation/strategies/compositions/setValue.tsutils/ExampleRunner/example-info.json
✅ Files skipped from review due to trivial changes (1)
- utils/ExampleRunner/example-info.json
🚧 Files skipped from review as they are similar to previous changes (3)
- packages/core/src/index.ts
- packages/core/src/RenderingEngine/GenericViewport/Planar/WebGPUImageMapperRenderPath.ts
- packages/core/src/RenderingEngine/GenericViewport/Planar/webgpuViewportRenderWindow.ts
sedghi
changed the title
…image stacks Adds an opt-in 'webgpu' render backend for planar GenericViewports, rendering image stacks through the vtk.js WebGPU view API via a self-rendering render path with a per-viewport WebGPU render window blitted into the cpu surface canvas. Shared planar code and the labelmap display now resolve render-mode kind/surface through the render backend registry instead of hardcoded ActorRenderMode literals, so extension render modes participate in view resolution, view references, slice scrolling and labelmap styling. isImageRenderMode/isVolumeRenderMode are exported from core. Includes the genericWebGPUStack example: live backend switching (webgpu/gpu/cpu), manipulation and annotation tools, segmentation editing tools on a fake labelmap, and a debug panel reporting the effective backend and WebGPU adapter.
Lists all GenericViewport (next architecture) examples, including the new genericWebGPUStack WebGPU render backend example.
Adds the 'webgpuVolume' render mode: a volume-slice render path using the stock vtkImageResliceMapper through the per-viewport WebGPU window, with a shared reference-counted mapper-input imageData per volume (cornerstone volumes are image-backed and own no contiguous scalar array; materializing one is a full copy that must not be duplicated per viewport). Shared planar code and the labelmap display now resolve volume-kind render modes through the render backend registry (isVolumeRenderMode / an isGpuVolumeSliceRenderMode helper) instead of hardcoded ActorRenderMode literals, the addImages overlay gate keys on the CanvasActor cpuVolume mode rather than the composited surface, the resolved camera is mirrored onto the engine's vtk renderer for camera consumers, and the WebGPU window honors the viewport background (with a setWebGPUViewportBackground helper). Includes the genericWebGPUOrtho example: sagittal/coronal CT MPR with live webgpu/gpu/cpu switching, manipulation and annotation tools, segmentation editing on a mock labelmap, and a renderBackend URL parameter.
setValue runs per voxel; resolving the segmentation and labelmap layer through ensureLabelmapState there re-normalized the entire binding state for every voxel of a stroke. Cache the resolved layer per operation data (created fresh per stroke, so bindings cannot change mid-stroke) and map labelValue to segmentIndex through the layer's existing table.
… reorients the plane The planar fit parallel scale is recomputed from the reoriented plane's projected extent, which varies with obliquity, while the relative zoom was carried over unchanged -- so rotating a viewport through setViewReference pulsed in and out as the plane swept the volume. Resolve the hypothetical post-patch view and rescale the relative zoom so the absolute parallel scale is preserved, matching the legacy setViewReference semantics.
…kends genericWebGPUPetMIP: an inverted full-volume PET slab projection (maximum/minimum/average blend with a thickness slider) on the WebGPU volume-slice render mode, wheel-rotated around the patient axis, beside a drag-to-rotate CT-Bone 3D volume viewport. Live webgpu/gpu switching with a backend-colored background cue and a debug panel reporting each viewport's actual render mode (the 3D viewport has no WebGPU mode yet and stays on WebGL).
… visible bounds Legacy VolumeViewport3D follows the wide clipping-range default with renderer.resetCameraClippingRange() on every camera change, pulling the near/far planes tight around the actor bounds. The generic vtkVolume3d path only applied the wide +/-1e6 default, and volume ray casting derives its sampling from the clipping range, so renders showed banding and streaking that the legacy viewport does not. Apply the same wide-then-reset sequence on mount and on every camera update.
…MIP example Mirror the legacy TrackballRotateTool interaction trick: double the volume mapper's sample distance on drag start and restore it on release with a final full-resolution render.
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Actionable comments posted: 1
🧹 Nitpick comments (1)
packages/tools/src/stateManagement/segmentation/helpers/labelmapImageMapperSupport.ts (1)
438-449: 📐 Maintainability & Code Quality | 🔵 Trivial | 💤 Low valueRemove redundant render-mode check.
Since
isNextPlanarViewportis defined usingisPlanarGpuVolumeSliceViewport(viewport)at line 362, it already enforces thatisGpuVolumeSliceRenderMode(...)is true (via line 101). Therefore, ifisNextPlanarViewportis true, the condition!isGpuVolumeSliceRenderMode(...)will never evaluate to true.Unsupported render modes for Next planar viewports are already caught at line 364, where the function returns
unsupported:viewport. You can safely remove this entire block.♻️ Proposed refactor
- if ( - isNextPlanarViewport && - !isGpuVolumeSliceRenderMode( - getPlanarPrimaryRenderMode(compatibilityViewport) - ) - ) { - return { - key: `unsupported:renderMode:${orientationKey}`, - sliceIndex: sliceIndex ?? NaN, - supported: false, - }; - } - return { // Use the discrete slice index instead of focal-point-derived world position.🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the rest with a brief reason, keep changes minimal, and validate. In `@packages/tools/src/stateManagement/segmentation/helpers/labelmapImageMapperSupport.ts` around lines 438 - 449, Remove the unreachable render-mode validation block guarded by isNextPlanarViewport and !isGpuVolumeSliceRenderMode in the label-mapping helper. Keep the existing unsupported:viewport handling for Next planar viewports unchanged, along with all subsequent mapping logic.
🤖 Prompt for all review comments with AI agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
Inline comments:
In `@packages/core/examples/genericWebGPUStack/index.ts`:
- Around line 330-343: Guard the “Use webgpu backend” toolbar registration in
the generic WebGPU example with isWebGPURenderingAvailable(), or disable its
handler when unavailable, so it cannot invoke switchBackend('webgpu') unless
WebGPU was successfully registered. Leave the GPU and CPU toolbar actions
unchanged.
---
Nitpick comments:
In
`@packages/tools/src/stateManagement/segmentation/helpers/labelmapImageMapperSupport.ts`:
- Around line 438-449: Remove the unreachable render-mode validation block
guarded by isNextPlanarViewport and !isGpuVolumeSliceRenderMode in the
label-mapping helper. Keep the existing unsupported:viewport handling for Next
planar viewports unchanged, along with all subsequent mapping logic.
🪄 Autofix (Beta)
Fix all unresolved CodeRabbit comments on this PR:
- Push a commit to this branch (recommended)
- Create a new PR with the fixes
ℹ️ Review info
⚙️ Run configuration
Configuration used: defaults
Review profile: CHILL
Plan: Pro Plus
Run ID: 9a5a94cf-de9b-4232-a374-ec11997438d0
📒 Files selected for processing (27)
packages/core/examples/genericWebGPUOrtho/index.tspackages/core/examples/genericWebGPUPetMIP/index.tspackages/core/examples/genericWebGPUStack/index.tspackages/core/src/RenderingEngine/GenericViewport/Planar/DefaultPlanarDataProvider.tspackages/core/src/RenderingEngine/GenericViewport/Planar/PlanarLegacyCompatibilityController.tspackages/core/src/RenderingEngine/GenericViewport/Planar/PlanarResolvedView.tspackages/core/src/RenderingEngine/GenericViewport/Planar/PlanarViewReferenceController.tspackages/core/src/RenderingEngine/GenericViewport/Planar/PlanarViewport.tspackages/core/src/RenderingEngine/GenericViewport/Planar/PlanarViewportLegacyAdapter.tspackages/core/src/RenderingEngine/GenericViewport/Planar/WebGPUImageMapperRenderPath.tspackages/core/src/RenderingEngine/GenericViewport/Planar/WebGPUVolumeSliceRenderPath.tspackages/core/src/RenderingEngine/GenericViewport/Planar/planarRenderPathProjection.tspackages/core/src/RenderingEngine/GenericViewport/Planar/planarViewReference.tspackages/core/src/RenderingEngine/GenericViewport/Planar/vtkWebGPUModules.d.tspackages/core/src/RenderingEngine/GenericViewport/Planar/webgpuViewportRenderWindow.tspackages/core/src/RenderingEngine/GenericViewport/Volume3D/VtkVolume3DRenderPath.tspackages/core/src/RenderingEngine/helpers/registerWebGPURenderBackend.tspackages/core/src/index.tspackages/core/src/types/RenderBackendRegistry.tspackages/tools/src/stateManagement/segmentation/helpers/getViewportLabelmapRenderMode.tspackages/tools/src/stateManagement/segmentation/helpers/labelmapImageMapperSupport.tspackages/tools/src/tools/displayTools/Labelmap/labelmapActorStyle.tspackages/tools/src/tools/displayTools/Labelmap/labelmapRenderPlan/planarGenericVolumeLabelmap.tspackages/tools/src/tools/displayTools/Labelmap/labelmapRenderPlan/volumeSliceImageMapperPlan.tspackages/tools/src/tools/displayTools/Labelmap/volumeLabelmapSliceData.tspackages/tools/src/tools/segmentation/strategies/compositions/setValue.tsutils/ExampleRunner/example-info.json
🚧 Files skipped from review as they are similar to previous changes (24)
- packages/core/src/RenderingEngine/GenericViewport/Planar/vtkWebGPUModules.d.ts
- utils/ExampleRunner/example-info.json
- packages/tools/src/tools/displayTools/Labelmap/labelmapActorStyle.ts
- packages/tools/src/tools/displayTools/Labelmap/labelmapRenderPlan/planarGenericVolumeLabelmap.ts
- packages/core/src/RenderingEngine/GenericViewport/Volume3D/VtkVolume3DRenderPath.ts
- packages/core/src/types/RenderBackendRegistry.ts
- packages/tools/src/tools/segmentation/strategies/compositions/setValue.ts
- packages/tools/src/tools/displayTools/Labelmap/volumeLabelmapSliceData.ts
- packages/core/src/RenderingEngine/GenericViewport/Planar/DefaultPlanarDataProvider.ts
- packages/core/src/RenderingEngine/GenericViewport/Planar/PlanarLegacyCompatibilityController.ts
- packages/core/src/RenderingEngine/GenericViewport/Planar/PlanarViewport.ts
- packages/core/src/RenderingEngine/helpers/registerWebGPURenderBackend.ts
- packages/tools/src/tools/displayTools/Labelmap/labelmapRenderPlan/volumeSliceImageMapperPlan.ts
- packages/core/src/RenderingEngine/GenericViewport/Planar/PlanarViewportLegacyAdapter.ts
- packages/core/src/index.ts
- packages/tools/src/stateManagement/segmentation/helpers/getViewportLabelmapRenderMode.ts
- packages/core/src/RenderingEngine/GenericViewport/Planar/PlanarViewReferenceController.ts
- packages/core/src/RenderingEngine/GenericViewport/Planar/PlanarResolvedView.ts
- packages/core/src/RenderingEngine/GenericViewport/Planar/WebGPUImageMapperRenderPath.ts
- packages/core/examples/genericWebGPUOrtho/index.ts
- packages/core/src/RenderingEngine/GenericViewport/Planar/planarViewReference.ts
- packages/core/src/RenderingEngine/GenericViewport/Planar/webgpuViewportRenderWindow.ts
- packages/core/src/RenderingEngine/GenericViewport/Planar/WebGPUVolumeSliceRenderPath.ts
- packages/core/examples/genericWebGPUPetMIP/index.ts
…mageMapper and translucent-pass fixes
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Context
Groundwork for evaluating WebGPU as the rendering backend: an opt-in
webgpurender backend for planar GenericViewports covering image stacks and volume-slice (MPR) rendering through the vtk.js WebGPU view API.Depends on vtk.js fixes: Kitware/vtk-js#3547 (ImageMapper projection + imageData texture invalidation) and Kitware/vtk-js#3548 (translucent-pass depth for coplanar overlays, needed for labelmap segmentation). Both merged upstream and shipped in vtk.js v36.4.2; this branch now pins
@kitware/vtk.js36.4.2, so no linked build is required.Changes & Results
registerWebGPURenderBackend()(opt-in, throws withoutnavigator.gpu): registers thewebgpubackend with self-rendering image (webgpuImage) and volume-slice (webgpuVolume) render paths; each viewport gets a ref-counted vtk.js WebGPU render window whose frames are blitted into thecpusurface canvas after the device work completes. Volume rendering materializes one shared, ref-counted mapper-input scalar array per volume (cornerstone volumes are image-backed and own no contiguous array).ActorRenderModeliterals (image and volume kinds), so extension render modes participate in view resolution, view references, scrolling, labelmap styling, and the labelmap image-mapper plan.isImageRenderMode/isVolumeRenderModeare exported from core. TheaddImagesoverlay gate keys on the CanvasActorcpuVolumemode rather than the composited surface.setValueresolves labelmap bindings once per stroke instead of per voxel; labelmap slice extraction walks flat voxel indices incrementally (original per-voxel IJK loop kept as fallback; obliques are unaffected — axis-aligned extraction only) and reuses slice buffers.genericWebGPUStack(stack + tools + annotations + segmentation editing on a fake labelmap) andgenericWebGPUOrtho(sagittal/coronal CT MPR + mock ellipsoid labelmap + tools), both with live webgpu/gpu/cpu switching, a?renderBackend=URL parameter, and a debug panel reporting the effective backend, mounted render mode, and WebGPU adapter. New Generic Viewports section in the example index.Verified on the webgpu backend: stack and MPR rendering with pixel parity to WebGL, wheel scroll with exact pixel round-trip, zoom/pan/VOI/invert/rotation, annotation tools, labelmap segmentation rendering and editing with segment colors matching the gpu and cpu backends, and live backend switching without errors. JS heap holds a single shared volume copy regardless of viewport count (verified via heap snapshots).
Testing
pnpm installis enough, no linked build needed.genericWebGPUStackandgenericWebGPUOrthoexamples in Chrome; the debug panels should showwebgpuImage/webgpuVolumeand the WebGPU adapter. Use the backend buttons (or?renderBackend=gpu|cpu) to compare against gpu/cpu.Checklist
PR
semantic-release format and guidelines.
Code
etc.)
Public Documentation Updates
additions or removals. (Experimental opt-in API; not documented on the docs site yet by design.)
Tested Environment
Summary by CodeRabbit