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This commit is contained in:
David Rose 2002-06-14 14:51:58 +00:00
parent c2c4531a0a
commit 429c4aa079
1 changed files with 20 additions and 9 deletions
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29
panda/src/distort/nonlinearImager.h
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@ -42,8 +42,10 @@ class GraphicsStateGuardian;
//
// This can be used to generate real-time imagery of a
// 3-d scene using a nonlinear camera, for instance a
// fisheye camera, even though the 3-d graphics engine
// only supports linear cameras.
// fisheye camera, even though the underlying graphics
// engine may only support linear cameras. It can also
// pre-distort imagery to compensate for off-axis
// projectors, and/or curved screens of any complexity.
//
//
// A NonlinearImager may be visualized as a dark room
@ -56,9 +58,13 @@ class GraphicsStateGuardian;
//
// There also exist in the room one or more (possibly
// nonlinear) cameras, called viewers, that observe
// these screens. Each of these viewers is associated
// with a single DisplayRegion, where the final results
// are presented.
// these screens. The image of the projection screens
// seen by each viewer is finally displayed on the
// viewer's associated DisplayRegion. By placing the
// viewer(s) appropriately relative to the screens, and
// by choosing suitable lens properties for the
// viewer(s), you can achieve a wide variety of
// distortion effects.
//
//
// There are several different LensNode (Camera) objects
@ -73,10 +79,15 @@ class GraphicsStateGuardian;
// seen from the screen's source camera is called a
// projector; these are set via the
// ProjectionScreen::set_projector() interface.
// Finally, the (possibly nonlinear) cameras that view
// the whole configuration of screens are called
// viewers; each of these is associated with a
// DisplayRegion, and they are set via set_viewer_camera().
// Finally, the cameras that view the whole
// configuration of screens are called viewers; each of
// these is associated with a DisplayRegion, and they
// are set via set_viewer_camera().
//
// Of all these lenses, only the source cameras must use
// linear (that is, perspective or orthographic) lenses.
// The projectors and viewers may be any arbitrary lens,
// linear or otherwise.
////////////////////////////////////////////////////////////////////
class EXPCL_PANDAFX NonlinearImager {
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