Log of /trunk/graf3d/gl/inc/TGLPerspectiveCamera.h
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Revision
31821 -
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Modified
Thu Dec 10 18:22:44 2009 UTC (5 years, 1 month ago) by
matevz
File length: 2653 byte(s)
Diff to
previous 28201
Add support for stereo rendering. This requires a graphics card that
supports quad-buffering and shutter glasses.
The standard drawing code is unchanged.
Revision
27369 -
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Modified
Fri Feb 6 17:35:54 2009 UTC (5 years, 11 months ago) by
matevz
File length: 2638 byte(s)
Diff to
previous 25245
Add function:
Bool_t TGLCamera::Truck(Double_t xDelta, Double_t yDelta)
that allows external code to control camera translation.
Use this also for the common code from perspective / orthographic camera.
Revision
25245 -
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Modified
Mon Aug 25 21:44:09 2008 UTC (6 years, 4 months ago) by
matevz
File length: 2609 byte(s)
Diff to
previous 23665
Merge changes from the eve-dev branch (-r 25202:HEAD). This makes trunk up to date with all developments in eve/ and gl/. eve-dev branch is now obsolete and will be removed.
Revision
23665 -
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Modified
Tue May 6 14:38:14 2008 UTC (6 years, 8 months ago) by
matevz
File length: 2610 byte(s)
Diff to
previous 23140
Added three more orthographic cameras (looking at the scene from
another side).
Added virtual methods Bool_t TGLCamera::IsPerspective()/IsOrthographic().
Revision
23140 -
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Modified
Fri Apr 11 11:01:39 2008 UTC (6 years, 9 months ago) by
rdm
File length: 2550 byte(s)
Diff to
previous 22539
move the following directories to "graf2d":
asimage, freetype, gpad, graf, postscript, qt, win32gdk, x11, x11ttf
move the following directories to "graf3d":
eve, ftgl, g3d, gl, x3d
Revision
22539 -
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Modified
Sat Mar 8 14:36:37 2008 UTC (6 years, 10 months ago) by
rdm
Original Path:
trunk/gl/inc/TGLPerspectiveCamera.h
File length: 2550 byte(s)
Diff to
previous 20882
From Alja, Bertrand & Matevz: merged branches/dev/fireworks 21757:22514.
This includes:
- development for event-displays of ALICE and CMS since 5.18 in eve/,
gl/ and gui/;
- many new tutorials and demos for eve/;
- fix in TQObject to support class-signals from all base-classes.
Revision
20292 -
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Modified
Wed Oct 10 14:08:48 2007 UTC (7 years, 3 months ago) by
brun
Original Path:
trunk/gl/inc/TGLPerspectiveCamera.h
File length: 2467 byte(s)
Diff to
previous 19826
From Matevz & Alja
* base/inc/TVirtualViewer3D.h:
Add function virtual void ObjectPaint(TObject*, Option_t*).
/**************************************************************************/
* ged/src/TGedEditor.cxx:
When adding top-level TGFrame for the extra tabs specify layout
hints with kLHintsExpandX.
/**************************************************************************/
* gl/inc/TGLScenePad.h:
* gl/src/TGLScenePad.cxx:
Implement virtual TVirtualViewer3D::ObjectPaint().
* gl/src/TGLCamera.cxx:
* gl/inc/TGLCamera.h:
* gl/src/TGLPerspectiveCamera.cxx:
* gl/inc/TGLPerspectiveCamera.h:
* gl/src/TGLOrthoCamera.cxx:
* gl/inc/TGLOrthoCamera.h:
Introduce two transformation matrices to clearly define movement
of camera around the center point. The first transformation matrix
fCamBase defines the coordinate system placed at the camera center
point with camera up-vector as the third base vector. The second
transformation matrix fCamTrans defines the camera transformation
relative to fCamBase.
Implement a common Truck(), Rotate() and Dolly() function for
orthographic and perspective camera.
Implement an option to define camera center point
externally. Center can also be determined via picking.
* gl/src/TGLUtil.cxx:
* gl/inc/TGLUtil.h:
TGLMatrix: add new functions to get/set the base vectors
directly.
TGLUtil: add member UInt_t fgDefaultDrawQuality.
TGLRect: bugfix in Diagonal(), integer calculation overflowed.
* gl/src/TGLViewer.cxx:
* gl/inc/TGLViewer.h:
Make interface to draw camera center point.
Add option to disable/enable depth test when drawing axis guides.
* gl/src/TGLViewerEditor.cxx:
* gl/inc/TGLViewerEditor.h:
Add GUI to manipulate camera center and to disable/enable depth
test when drawing axis guides.
* gl/src/TGLClipSetEditor.cxx:
Change layout of labeled number entries.
* gl/src/TGLLightSet.cxx:
Fix positioning of front light. White-space consolidation.
* gl/src/TGLLightSetEditor.cxx:
* gl/inc/TGLLightSetEditor.h:
Put GUI for the 6 lights in two columns.
/**************************************************************************/
* tutorials/gl/glViewerExercise.C:
Follow-up on changes in TGLCamera. Enable rotation on
orthographic camera.
* tutorials/gl/glViewerLOD.C:
Workourond for cint bug with switch statements.
Revision
19000 -
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Modified
Mon Jun 11 19:56:34 2007 UTC (7 years, 7 months ago) by
brun
Original Path:
trunk/gl/inc/TGLPerspectiveCamera.h
File length: 3181 byte(s)
Diff to
previous 16090
From Matevz:
Major restructuring of GL viewer-scene relationship (Matevz)
===================================================
The main idea was to generalize current GL infrustructure so that the
following features can be done in the future:
1. Full pad rendering via GL including 3D histo/func painters and 2D graphics.
2. Implementation of GL canvas (with independent viewers serving as pads).
3. Multi-view event-visualization front-end.
4. Inclusion of external scenes (non-ROOT-gl) in ROOT viewer.
Rendering of ROOT scenes in external GL frameworks.
Changes on the code level
-------------------------
0. Extend current scene/viewer classes into a 2-level class hierarchy.
New classes TGLViewerBase and TGLSceneBase.
1. Allow scenes to be shared among viewers. View-specific scene-cache
needs to be kept at the viewer side.
2. Viewer now manages a list of scenes. It is possible to put together
a combination of scenes (e.g. one showing geometry, another one tracks
and yet another clusters). Each scene can define its own clipping object.
3. Provide API for fine-grained control over rendered object removal,
creation and update. This allows for efficient scene-updates.
4. Disentangle selection, clipping and other markup objects from
within viewer-scene singleton.
New classes TGLClipSet, TGLManipSet.
6. Disentangle selection management.
7. Separate overlay rendering to allow any number of active GL-GUI
elements (like manipulators are now).
New classes TGLOverlayElement.
8. Trailing white space has been removed in all files.
Restructure low-level interface to OpenGL (Timur)
=========================================
1. Allow sharing GL resources among viewers.
2. Do not bind GL-output (windowed or offscreen) to ROOT GUI.
New classes TGLContext, TGLFormat, TGLWidget.
This oboletes TGLKernel and TVirtualGL classes.
Revision
16090 -
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Modified
Wed Aug 23 14:39:40 2006 UTC (8 years, 5 months ago) by
brun
Original Path:
trunk/gl/inc/TGLPerspectiveCamera.h
File length: 3176 byte(s)
Diff to
previous 13936
From Matevz Tadel:
1) Implementation of two-level (secondary) selection
Rendering objects can provide a new level of interactivity, for
example a TPointSet3D holding a set of clusters can attach a pointer
to original cluster to each point and receive notifications when a
specified cluster was clicked.
Secondary selection is activated by Control-Left clicking into the
GL window.
2) Improve control over camera-reset behaviour
Allow user to prevent camera reset on scene update and
double-click.
3) Improvements in TPointSet3D(GL)
Detailed ChangeLog
==================
* base/inc/TVirtualViewer3D.h:
Added virtual methods 'void ResetCameras(){}' and 'void
ResetCamerasAfterNextUpdate(){}'.
* gl/inc/TGLScene.h:
* gl/src/TGLScene.cxx:
Implemented two-level selection. It is enabled for next selection
pass by calling ActivateSecSelect().
DoSelect() does not change the selected object but only indicates
which object has been selected by setting new member
'TGLPhysicalShape *fSelectionResult'. Caller (TGLViewer) must call
new method 'void ApplySelection()' to actually change the selected
object to the last selection result.
Changed declaration of selection buffer from being a static varable
within DoSelect() to data-member. This allows post-processing of
selection records needed by two-level selection.
* gl/inc/TGLCamera.h:
* gl/inc/TGLOrthoCamera.h:
* gl/inc/TGLPerspectiveCamera.h:
* gl/src/TGLCamera.cxx:
* gl/src/TGLOrthoCamera.cxx:
* gl/src/TGLPerspectiveCamera.cxx:
Added Bool_t argument with default value to:
virtual void TGLCamera::Setup(const TGLBoundingBox & box, Bool_t
reset=kTRUE) = 0;
By setting it to false one can change camera parameters for new
scene bounding-box without repositioning the camera.
Added 'Bool_t checkSize' argument to OfInterest().
This is relevant for marker-classes which can have small
volume/length but are still visible as they are rendered in
pixel-coordinates. Value of this argument is needed in TGLScene
(DestroyPhysicals) and TGLViewer (AddObject). It is obtained by
calling virtual method TGLLogicalShape::IgnoreSizeForOfInterest().
This method returns false by defalut and is overriden in
TGLPolyMarker and TPointSet3DGL.
* gl/inc/TGLViewer.h:
* gl/src/TGLViewer.cxx:
Added controls for camera-reset behaviour.
Data-members: 'Bool_t fResetCamerasOnUpdate', 'Bool_t
fResetCamerasOnNextUpdate', 'Bool_t fResetCameraOnDoubleClick'.
Methods: 'ResetCameras()', 'ResetCamerasAfterNextUpdate()',
'ResetCurrentCamera()'.
Added an argument to 'void PostSceneBuildSetup(Bool_t resetCameras).
Added Bool_t return-value to RequestSelect(). It returns true if
result of the selection is different then fSelectedPhysical.
Added method ApplySelection() to interface with TGLScene
selection state. This is called from event-handling functions in
TGLViewer.
Added key-binding for 'Home': ResetCurrentCamera().
* gl/inc/TGLSAViewer.h:
* gl/src/TGLSAViewer.cxx:
Added description of new functionality to fgHelpText.
MSVC was complaining about fgHelpText being too long: I split it
into fgHelpText1 and fgHelpText2.
* gl/inc/TGLDrawFlags.h:
* gl/src/TGLDrawFlags.cxx:
Added members 'Bool_t fSelection' and 'Bool_t
fSecSelection' allowing passing of current selection state to
renderers. This is needed to allow different render-paths during
(secondary) selection.
We should consider passing TGLScene* and/or TGLViewer* down to
DirectDraw() of individual renderers.
* gl/src/TGLDrawable.cxx:
In ShouldCache() return false if secondary selection is in progress.
* gl/src/TGLPhysicalShape.cxx:
Handle new members in TGLDrawFlags.
* gl/inc/TGLLogicalShape.h:
* gl/src/TGLLogicalShape.cxx:
Added three new functions:
1) virtual Bool_t SupportsSecondarySelect() const { return kFALSE; }
This is called by TGLScene::DoSelect() to check is object that was
the result of primary selection supports secondary selection.
2) virtual void ProcessSelection(UInt_t* ptr, TGLViewer*, TGLScene*);
It is called back from TGLViewer after successful secondary
selection. As the object that does the rendering is the only one
that actually knows how the object sub-parts were named it has
to interpret the results.
Both of these should be overriden in classes that support
secondary selection, for example see TPointSet3DGL.
3) virtual Bool_t IgnoreSizeForOfInterest() const { return kFALSE; }
Signals to TGLScene and TGLViewer that volume/lenght of this
class' bounding box should not be considered when checking if
objects of this class are of interest to current camera.
* gl/inc/TGLObject.h:
* gl/src/TGLObject.cxx:
Changed second argument of function:
Bool_t SetModelCheckClass(TObject* obj, const Text_t* classname);
to 'TClass* cls'. This is much more efficient.
* g3d/inc/TPointSet3D.h:
* g3d/src/TPointSet3D.cxx:
Added support for per-point designations (one TObject* per point;
via casting it can be set to anything).
New virtual method 'void PointSelected(Int_t n)' that is called
back after successful secondary selection in TGLViewer (via
virtual TGLLogicalShape::ProcessSelection()).
* gl/inc/TPointSet3DGL.h:
* gl/src/TPointSet3DGL.cxx:
Added support for per-point selection. Point-sizes are taken into
account during selection (by modifying the projection
matrix).
Implemented 'virtual Bool_t TGLDrawable::ShouldCache()' to disable
caching when in primary selection (point-size improvements).
Cross-like marker types are now supported to some extent.
Improved structure of rendering code.
Override 'virtual Bool_t TGLLogicalShape::IgnoreSizeForOfInterest()'
to return true.
Multiply TAttMarker::GetMarkerSize() by 5 before applying.
* gl/inc/TGLPolyMarker.h:
Override 'virtual Bool_t TGLLogicalShape::IgnoreSizeForOfInterest()'
to return true.
Revision
13936 -
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Modified
Thu Jan 26 11:59:42 2006 UTC (8 years, 11 months ago) by
brun
Original Path:
trunk/gl/inc/TGLPerspectiveCamera.h
File length: 3156 byte(s)
Diff to
previous 13599
From Richard:
Implement manipulators (translate/scale/rotate) for all shapes in
viewer (previously only clip shapes could use them).
Behaviour:
i) Single selection in viewer - either a normal / clip shape or none.
Current manipulator is attached (and shown) when attached to selection.
ii) Normal viewer shapes are selected using Shift+Left Mouse button (and
have bounding box drawn).
iii) Clip shapes are shown/selected by checking 'Show/Edit' option on
the Scene/Clipping tab of the GUI.
iv) Any exisiting (normal/clip) selection is cleared when making new
choice.
v) (Transparent) clip shapes cannot be selected (picked) directly in the
viewer - normal shape override this.
Rotation properties of shapes are not reflected in GUI currently.
Revision
13495 -
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Modified
Mon Dec 5 17:34:45 2005 UTC (9 years, 1 month ago) by
brun
Original Path:
trunk/gl/inc/TGLPerspectiveCamera.h
File length: 2992 byte(s)
Diff to
previous 13316
From Richard:
Fixes for perspective camera constraints. Camera has a level floor
formed from 2 of the 3 world axes - avoids tipping of horizon.
Previously only one combination was supported making it impossible to
navigate round some detectors naturally, or stand them on their 'feet'
supports.
'Projections' menu is now renamed 'Camera' and has three simple
perspective combinations:
Perspective (Floor XOZ) - default.
Perspective (Floor YOZ)
Perspective (Floor XOY)
in addition to 3 ortho combinations. Also updated help and default clips
to be more sensible with new default.
Revision
12100 -
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Modified
Tue Jun 21 16:54:17 2005 UTC (9 years, 7 months ago) by
brun
Original Path:
trunk/gl/inc/TGLPerspectiveCamera.h
File length: 2203 byte(s)
Diff to
previous 11929
From Richard Maunder:
Fixes for camera limits - greater ranges +
Right Mouse: Dolly Camera (Move In/Out) with side/side motion (as
before). Also j/k keys control.
Mouse Wheel: Zoom Camera - adjust field of view of 'lens'. As expected
this can introduce noticable distortion at wide angles.
Combination of two gives a very large 'zoom' range for the camera
sufficient for current detectors.
Additionally modifiers adjusts the sensitvity of the interactions,
making easier to tune in on a certain part:
Shift: x 10
Ctrl: x 0.1
Shift+Ctrl: x 0.01
NB Modifier must go down after mouse button for shift to avoid
[Under Win32 the modifiers do not work with mouse wheel (Zoom) as
TGEvent does not contain them for some reason. Will log a bug for this
to be looked into]
Also:
i) Added 'debug' mode for viewer (toggle with 'd' key) which draws out
camera interest, frustum basis, scene boxes etc in various colors. In
debug mode rebuilds only done when forced with space key strike.
ii) Fixes lost objects in some scene rebuilds.
Revision
11866 -
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Added
Wed May 25 14:25:17 2005 UTC (9 years, 8 months ago) by
brun
Original Path:
trunk/gl/inc/TGLPerspectiveCamera.h
File length: 2106 byte(s)
From Richard Maunder:
Major changes to GL viewer to support:
i) Logical/Physical shape pairings
ii) Level of detail (LOD) scheme (TGLSphere only using at present)
iii) Common display list cache
iv) Scene rebuilds for large geometries
v) Some basic interactivity improvements - draw timeouts, drop low LOD
shapes etc
vi) New camara interactions:
Left Mouse: Rotate
Middle Mouse: Truck (pan parallel to camera film plane)
Right Mouse: Side-side drag dolly/zoom
Double click any button to reset the camera.
The previous pan with arrow keys, and zoom on mouse wheel are still
supported.
Camera interaction is default in viewer. These extra camera modes mean
there are not enough mouse buttons for previous right context/select.
To select / invoke context menu use Shift+Left Button and Shift+Right
Button respectively.
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