At 03:36 PM 5/13/99 -0400, Anselm Hook wrote:
>
>So the problem is capturing the environment mapping to a bitmap which you
>can then apply to the surface of your object?
For this application I can declare an image that I already have as the
bitmap to be applied. (I'll generate something in Photoshop.) So it's a lot
easier than it might be if I had to compute a "real" environment map. I can
also apply texture coordinates to the geometry when I create it but I'm not
sure that will be helpful. The problem is in animating the texture
coordinates in response to the camera movement (or object movement in
relation to the camera). It seems like there should also be a degree of
distortion introduced as the camera moves nearer to the object. These are
the problems I'm trying to find info on.
I'd also like to know if this can be done in such a way that the reflection
map could be applied on top of a normal texture map and the two maps
blended together. That's way more than I need for this application, but it
would be interesting to know if it was possible.
The whole idea is to get it to work (and look good) in real-time without
taking too big of a performance hit. So cheats and hacks are totally
acceptable.
Cindy
>
>Apparently a View can attach a ViewPlatform, or as the documentation sez:
>
>This method attaches a ViewPlatform leaf node to this View, replacing the
>existing ViewPlatform. If the ViewPlatform is part of a live scene graph, or
>is subsequently made live, the scene graph is rendered into all canvases in
>this View object's list of Canvas3D objects. To remove a ViewPlatform
>without attaching a new one-causing the View to no longer be rendered-a null
>reference may be passed to this method. In this case, the behavior is as if
>rendering were simultaneously stopped on all canvases attached to the
>View-the last frame that was rendered in each remains visible until the View
>is again attached to a live ViewPlatform object. See Section 5.10,
>"ViewPlatform Node," for more information on ViewPlatform objects.
>
>So... the next question is can you have multiple viewing platforms? And can
>you point a texture at a canvas3d?
>
__________________________________________
| |
| Cindy Ballreich |
|\ | Technical Director - 3D Visualization |
_/ .`-| Computer Associates International, Inc. | ,
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