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Instance drawing + IDLgrVolume [message #33973]

Wed, 12 February 2003 02:06

s[1]
Messages: 21
Registered: December 2002

Junior Member

Hey all,

I recently discovered instance drawing for drawing an interactive 3D
cursor (using /DRAW_INSTANCE) over a volume (rendered with
CREATE_INSTANCE=1), to my big surprise it both works really fast and
shows only parts of the cursor that are not hidden by the volume.

My question is: How does the cursor (just a polyline) know where the
volume begins? How does instance drawing work for IDLgrVolumes? Is there
somewhere a hidden depthmap for the volume or is the cursor drawn first
and then the parts of the volume where the cursor is are re-rendered?
Anyway, is there a way to get to know which parts of the window have been
updated by the cursor?

Just curious,

Sebastian

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[Message index]

		Instance drawing + IDLgrVolume By: s[1] on Wed, 12 February 2003 02:06
		Re: Instance drawing + IDLgrVolume By: Karl Schultz on Wed, 12 February 2003 08:38

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