HardwareSelectionPass

Source (.js)Source (.d.ts)

Introduction

vtkWebGPUHardwareSelectionPass renders the scene into an integer texture whose texels hold [propID, compositeID, attributeID + 1, unused], which vtkWebGPUHardwareSelector reads back to resolve a pick.

Methods

createRenderEncoder

Create the render encoder the selection ids are written through, including the shader replacement packing them into the color attachment.

extend

Method used to decorate a given object (publicAPI+model) with vtkWebGPUHardwareSelectionPass characteristics.

Argument	Type	Required	Description
publicAPI		Yes	object on which methods will be bounds (public)
model		Yes	object on which data structure will be bounds (protected)
initialValues	IWebGPUHardwareSelectionPassInitialValues	No	(default: {})

getColorTexture

Get the rgba32uint texture holding the selection ids, or null before the first traversal.

getDepthTexture

Get the depth32float texture this pass renders into, or null before the first traversal.

newInstance

Method used to create a new instance of vtkWebGPUHardwareSelectionPass.

Argument	Type	Required	Description
initialValues	IWebGPUHardwareSelectionPassInitialValues	No	for pre-setting some of its content

traverse

Render the opaque actors of a renderer into an rgba32uint texture holding the prop, composite and attribute ids of every fragment, allocating or resizing the color and depth textures to the canvas first.

Argument	Type	Required	Description
viewNode	vtkWebGPURenderWindow	Yes	The render window view node.
renNode	vtkWebGPURenderer	Yes	The renderer view node to traverse.