Using Sandy 3D AS3, fill the viewport (exact fit) with multiple 3D objects.
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by Andrew Mullins
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Published on 2010-05-19T17:58:20Z
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2010/05/19
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I'm stitching together an image using multiple instances of the sandy.primitive.Box. Each box is 96x91 while the viewport is 960x273 which should make for an exact fit if I layout the boxes in a perfect grid of 10x3. However, I can't seem to get the exact camera fieldOfView. I've tried a couple formulas (one for adjusting the "focal length" and one for adjusting the fov, directly). Both of these formulas produce a fov angle that is too narrow.
// focal length
(stage.stageHeight/2) / Math.tan(cam.fov / 2 * Math.PI / 180)
// field of view
2 * Math.atan2( (stage.stageHeight/2), -cam.z ) * (180 / Math.PI)
Another question about the same project: I need to adjust the perspective of each cube so that the image appears to be in 2D space (flat)... Any ideas on the best method for calculating such a "correction"?
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