On Thu, Sep 9, 2010 at 2:05 PM, Christopher Wright < [email protected]> wrote:
> I basically want to know the *exact *number, from Apple (or really, from > anyone, but not a visual comparison/kinda close thing, like this). > > > There isn't an exact number -- this sort of thing requires passing the > coordinates through the projection matrix QC uses (undocumented, but it's > been investigated on the list before in the past) as well as the model view > matrix (which can be arbitrarily configured via Trackball and 3D > Transformation). > > i'm going to assume this is for faking Z on a Billboard? If so, why not > just use a sprite? If not, what other reason is there to fake Z positioning > like this? (I'm not saying there isn't a reason, I'm just not able to think > of one off the top of my head :). > > The reason behind this is so I can have: 1- A structure of x/y/z coords. 2- X/Y/Z coordinates attach to Sprites, Sprites are rendered in "real" positions. 3- Flip an index (or whatever), and have all of the Sprites "look" like they are in the exact same positions, but all at z=0. Rotating the rendered Sprites en masse would reveal them to be all at z=0. This is for the scenario of "blowing people's minds" with optical illusion when rendering stereoscopic graphics. In one mode, everything would appear to be flat, and then in the other they would render in 3 dimensions. Crossfading between both structures would be the next step (don't need advice on that one). The fact that you've said there isn't an exact number means I wasn't going crazy late last night (and in the past), so at least in that, I'm relieved. ;) I have a workaround, but I would rather approach it this way, if possible. -George Toledo -- > Christopher Wright > [email protected] > > > >
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