Viewport Camera Gets Stuck in Unusable State After Framing Too-Large Object

[danieldresser-ie]

If you frame an object that is too big, it appears that our camera position gets corrupted.

I'll paste an example scene below, where I just make an unreasonably large cube by taking the largest cube I can make, and then scaling it up.

It's completely reasonable that hitting F to frame this object puts the camera in an unusable state, but there should be a way to recover from this ( for example, by framing a reasonable sized object ). I haven't investigated yet, but I'm assuming that since framing preserves the camera rotation, if there's a NaN or something in the existing camera matrix, framing can't fix it.

Simplest fix I can think of is that framing should first check if the matrix is invalid, and if so, reset it. ( Currently the only fix that users have identified is making a new Viewer tab ).

[danieldresser-ie]

import GafferScene
import IECore
import imath

Gaffer.Metadata.registerValue( parent, "serialiser:milestoneVersion", 1, persistent=False )
Gaffer.Metadata.registerValue( parent, "serialiser:majorVersion", 6, persistent=False )
Gaffer.Metadata.registerValue( parent, "serialiser:minorVersion", 5, persistent=False )
Gaffer.Metadata.registerValue( parent, "serialiser:patchVersion", 0, persistent=False )

__children = {}

__children["Cube"] = GafferScene.Cube( "Cube" )
parent.addChild( __children["Cube"] )
__children["Cube"].addChild( Gaffer.V2fPlug( "__uiPosition", defaultValue = imath.V2f( 0, 0 ), flags = Gaffer.Plug.Flags.Default | Gaffer.Plug.Flags.Dynamic, ) )
__children["Transform"] = GafferScene.Transform( "Transform" )
parent.addChild( __children["Transform"] )
__children["Transform"].addChild( Gaffer.V2fPlug( "__uiPosition", defaultValue = imath.V2f( 0, 0 ), flags = Gaffer.Plug.Flags.Default | Gaffer.Plug.Flags.Dynamic, ) )
__children["PathFilter"] = GafferScene.PathFilter( "PathFilter" )
parent.addChild( __children["PathFilter"] )
__children["PathFilter"].addChild( Gaffer.V2fPlug( "__uiPosition", defaultValue = imath.V2f( 0, 0 ), flags = Gaffer.Plug.Flags.Default | Gaffer.Plug.Flags.Dynamic, ) )
__children["Cube"]["dimensions"]["x"].setValue( 1.0000000150474662e+29 )
__children["Cube"]["dimensions"]["y"].setInput( __children["Cube"]["dimensions"]["x"] )
__children["Cube"]["dimensions"]["z"].setInput( __children["Cube"]["dimensions"]["x"] )
__children["Cube"]["__uiPosition"].setValue( imath.V2f( 630.633057, 167.035828 ) )
__children["Transform"]["in"].setInput( __children["Cube"]["out"] )
__children["Transform"]["filter"].setInput( __children["PathFilter"]["out"] )
__children["Transform"]["transform"]["scale"]["x"].setValue( 3.4028234663852886e+38 )
__children["Transform"]["transform"]["scale"]["y"].setInput( __children["Transform"]["transform"]["scale"]["x"] )
__children["Transform"]["transform"]["scale"]["z"].setInput( __children["Transform"]["transform"]["scale"]["x"] )
__children["Transform"]["__uiPosition"].setValue( imath.V2f( 630.63385, 158.871765 ) )
__children["PathFilter"]["paths"].setValue( IECore.StringVectorData( [ '/cube' ] ) )
__children["PathFilter"]["__uiPosition"].setValue( imath.V2f( 643.63385, 164.954407 ) )


del __children