Jasmine Kwok wrote:
Hi all!
I'm sorry. There's a slight mistake in my email previously. what I meant simply was that
Mouse Zoom couldn't work Parallel projection but was fine with perspective projection.
In fact, translate and rotate were fine with both perspective and parallel projection. Zoom is the main cause of problem here.
Hmnmm.... I spot a FAQ question in the making....
Others will answer appropriately, but suffice to say that "zoom" is
dependent on the perspective calculation. That's what the perspective
calcs do - make things smaller when they move away and bigger when they
are closer. Remove the perspective calc and tere's nothing to make the
object bigger or smaller!
--
Justin Couch http://www.vlc.com.au/~justin/
Java Architect & Bit Twiddler http://www.yumetech.com/
Author, Java 3D FAQ Maintainer http://www.j3d.org/
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"Humanism is dead. Animals think, feel; so do machines now.
Neither man nor woman is the measure of all things. Every organism
processes data according to its domain, its environment; you, with
all your brains, would be useless in a mouse's universe..."
- Greg Bear, Slant
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