Finding intersections in a rectangle?

[dov]

In my application, I'd like the option of selecting all objects that intersect a rectangle defined by the mouse. Is there any rectangle/scene intersection support in VSG? If not, I thought that it may be implemented by creating a "label buffer" in which each pixel represents the index of the mesh in the scene, and then simply finding what labels exist in the selection. But how would I create the label image? Should I create a separate "graphics pipeline" that contain label image shaders? Can I share the vertexDraw nodes between the different pipelines. Is there an example showing how this is done?

[robertosfield]

A polytope intersector is way to tackle this type of requirement. The VSG does yet have one but will soon.

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On Fri, 30 Aug 2024, 07:23 Dov Grobgeld, ***@***.***> wrote: In my application, I'd like the option of selecting all objects that intersect a rectangle defined by the mouse. Is there any rectangle/scene intersection support in VSG? If not, I thought that it may be implemented by creating a "label buffer" in which each pixel represents the index of the mesh in the scene, and then simply finding what labels exist in the selection. But how would I create the label image? Should I create a separate "graphics pipeline" that contain label image shaders? Can I share the vertexDraw nodes between the different pipelines. Is there an example showing how this is done? — Reply to this email directly, view it on GitHub <#1270>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAKEGUFC2DW2CSDMLMUREETZUAFVDAVCNFSM6AAAAABNL2HL6CVHI2DSMVQWIX3LMV43ERDJONRXK43TNFXW4OZXGEYTCMRYG4> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>