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A task for running picking queries against the current scene. More...
Inherits HdTask.
Public Member Functions | |
| HDX_API | HdxPickTask (HdSceneDelegate *delegate, SdfPath const &id) |
| HDX_API void | Sync (HdSceneDelegate *delegate, HdTaskContext *ctx, HdDirtyBits *dirtyBits) override |
| Sync the render pass resources. More... | |
| HDX_API void | Prepare (HdTaskContext *ctx, HdRenderIndex *renderIndex) override |
| Prepare the pick task. More... | |
| HDX_API void | Execute (HdTaskContext *ctx) override |
| Execute the pick task. More... | |
| HDX_API const TfTokenVector & | GetRenderTags () const override |
 Public Member Functions inherited from HdTask | |
| HD_API | HdTask (SdfPath const &id) |
| Construct a new task. More... | |
| virtual void | Sync (HdSceneDelegate *delegate, HdTaskContext *ctx, HdDirtyBits *dirtyBits)=0 |
| Sync Phase: Obtain task state from Scene delegate based on change processing. More... | |
| virtual void | Prepare (HdTaskContext *ctx, HdRenderIndex *renderIndex)=0 |
| Prepare Phase: Resolve bindings and manage resources. More... | |
| virtual void | Execute (HdTaskContext *ctx)=0 |
| Execute Phase: Runs the task. More... | |
| virtual HD_API const TfTokenVector & | GetRenderTags () const |
| Render Tag Gather. More... | |
| SdfPath const & | GetId () const |
| virtual HD_API HdDirtyBits | GetInitialDirtyBitsMask () const |
| Returns the minimal set of dirty bits to place in the change tracker for use in the first sync of this prim. More... | |
Static Public Member Functions | |
| static int | DecodeIDRenderColor (unsigned char const idColor[4]) |
| Utility: Given a UNorm8Vec4 pixel, unpack it into an int32 ID. More... | |
Additional Inherited Members | |
| Protected Member Functions inherited from HdTask | |
| template<class T > | |
| bool | _GetTaskParams (HdSceneDelegate *delegate, T *outValue) |
| Extracts a typed value out of the task context at the given id. More... | |
| HD_API TfTokenVector | _GetTaskRenderTags (HdSceneDelegate *delegate) |
| Static Protected Member Functions inherited from HdTask | |
| static HD_API bool | _HasTaskContextData (HdTaskContext const *ctx, TfToken const &id) |
| Check if the shared context contains a value for the given id. More... | |
| template<class T > | |
| static bool | _GetTaskContextData (HdTaskContext const *ctx, TfToken const &id, T *outValue) |
| Extracts a typed value out of the task context at the given id. More... | |
| template<class T > | |
| static T | _GetDriver (HdTaskContext const *ctx, TfToken const &driverName) |
| Extract an object from a HdDriver inside the task context. More... | |
A task for running picking queries against the current scene.
This task generates an id buffer for a "pick frustum" (normally the camera frustum with the near plane narrowed to an (x,y) location and a pick radius); then it resolves that id buffer into a series of prim paths. The "Hit" output also contains subprim picking results (e.g. picked face, edge, point, instance) and the intersection point in scene worldspace.
HdxPickTask takes an HdxPickTaskParams through the scene delegate, and HdxPickTaskContextParams through the task context as "pickParams". It produces a hit vector, in the task context as "pickHits".
Definition at line 179 of file pickTask.h.
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inlinestatic |
Utility: Given a UNorm8Vec4 pixel, unpack it into an int32 ID.
Definition at line 207 of file pickTask.h.
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override |
Execute the pick task.
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override |
Prepare the pick task.
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override |
Sync the render pass resources.
1.8.5 
