Revision: 19711
http://projects.blender.org/plugins/scmsvn/viewcvs.php?view=rev&root=bf-blender&revision=19711
Author: campbellbarton
Date: 2009-04-14 05:08:09 +0200 (Tue, 14 Apr 2009)
Log Message:
-----------
BGE Bugfix
[#17678] "Mouse over" sensor broken when using viewports
Loop over all the scenes camera viewports and check the mouse is inside the
viewport before casting a ray.
Modified Paths:
--------------
trunk/blender/source/gameengine/Ketsji/KX_MouseFocusSensor.cpp
Modified: trunk/blender/source/gameengine/Ketsji/KX_MouseFocusSensor.cpp
===================================================================
--- trunk/blender/source/gameengine/Ketsji/KX_MouseFocusSensor.cpp
2009-04-13 20:08:33 UTC (rev 19710)
+++ trunk/blender/source/gameengine/Ketsji/KX_MouseFocusSensor.cpp
2009-04-14 03:08:09 UTC (rev 19711)
@@ -150,11 +150,11 @@
-bool KX_MouseFocusSensor::ParentObjectHasFocus(void)
+bool KX_MouseFocusSensor::ParentObjectHasFocus()
{
m_hitObject = 0;
- m_hitPosition = MT_Vector3(0,0,0);
- m_hitNormal = MT_Vector3(1,0,0);
+ m_hitPosition.setValue(0,0,0);
+ m_hitNormal.setValue(1,0,0);
/* All screen handling in the gameengine is done by GL,
* specifically the model/view and projection parts. The viewport
@@ -188,6 +188,11 @@
*
* */
+ MT_Vector4 frompoint;
+ MT_Vector4 topoint;
+
+ bool result = false;
+
/* Because we don't want to worry about resize events, camera
* changes and all that crap, we just determine this over and
* over. Stop whining. We have lots of other calculations to do
@@ -195,96 +200,105 @@
* canvas, the test is irrelevant. The 1.0 makes sure the
* calculations don't bomb. Maybe we should explicitly guard for
* division by 0.0...*/
-
- KX_Camera* cam = m_kxscene->GetActiveCamera();
-
- /* get the scenes current viewport. we recompute it because there
- * may be multiple cameras and m_kxscene->GetSceneViewport() only
- * has the one that was last drawn */
-
- RAS_Rect area, viewport;
- m_kxengine->GetSceneViewport(m_kxscene, cam, area, viewport);
-
- float height = float(viewport.m_y2 - viewport.m_y1 + 1);
- float width = float(viewport.m_x2 - viewport.m_x1 + 1);
+ list<class KX_Camera*>* cameras = m_kxscene->GetCameras();
- float x_lb = float(viewport.m_x1);
- float y_lb = float(viewport.m_y1);
+ // Draw the scene once for each camera with an enabled viewport
+ list<KX_Camera*>::iterator it = cameras->begin();
+ while(it != cameras->end())
+ {
+ if((*it)->GetViewport())
+ {
+ KX_Camera* cam= (*it);
+
+ /* get the scenes current viewport. we recompute it
because there
+ * may be multiple cameras and
m_kxscene->GetSceneViewport() only
+ * has the one that was last drawn */
- /* There's some strangeness I don't fully get here... These values
- * _should_ be wrong! */
-
+ RAS_Rect area, viewport;
+ m_kxengine->GetSceneViewport(m_kxscene, cam, area,
viewport);
+
+ /* Check if the mouse is in the viewport */
+ if ( m_x < viewport.m_x2 && // less then right
+ m_x > viewport.m_x1 && // more then
then left
+ m_y < viewport.m_y2 && // below top
+ m_y > viewport.m_y1) // above bottom
+ {
+ float height = float(viewport.m_y2 -
viewport.m_y1 + 1);
+ float width = float(viewport.m_x2 -
viewport.m_x1 + 1);
+
+ float x_lb = float(viewport.m_x1);
+ float y_lb = float(viewport.m_y1);
- /* old: */
- float nearclip = 0.0;
- float farclip = 1.0;
+ /* There's some strangeness I don't fully get
here... These values
+ * _should_ be wrong! - see from point Z values
*/
+
+
+ /* build the from and to point in
normalized device coordinates
+ * Looks like normailized device
coordinates are [-1,1] in x [-1,1] in y
+ * [0,-1] in z
+ *
+ * The actual z coordinates used don't
have to be exact just infront and
+ * behind of the near and far clip planes.
+ */
+ frompoint.setValue( (2 * (m_x-x_lb) /
width) - 1.0,
+ 1.0 -
(2 * (m_y - y_lb) / height),
+ 0.0, /*
nearclip, see above comments */
+ 1.0 );
+
+ topoint.setValue( (2 * (m_x-x_lb) /
width) - 1.0,
+ 1.0 -
(2 * (m_y-y_lb) / height),
+ 1.0, /*
farclip, see above comments */
+ 1.0 );
- /* build the from and to point in normalized device coordinates
- * Looks like normailized device coordinates are [-1,1] in x
[-1,1] in y
- * [0,-1] in z
- *
- * The actual z coordinates used don't have to be exact just
infront and
- * behind of the near and far clip planes.
- */
- MT_Vector4 frompoint = MT_Vector4(
- (2 * (m_x-x_lb) / width) - 1.0,
- 1.0 - (2 * (m_y - y_lb) / height),
- nearclip,
- 1.0
- );
- MT_Vector4 topoint = MT_Vector4(
- (2 * (m_x-x_lb) / width) - 1.0,
- 1.0 - (2 * (m_y-y_lb) / height),
- farclip,
- 1.0
- );
+ /* camera to world */
+ MT_Transform wcs_camcs_tranform =
cam->GetWorldToCamera();
+ if (!cam->GetCameraData()->m_perspective)
+ wcs_camcs_tranform.getOrigin()[2] *=
100.0;
+ MT_Transform cams_wcs_transform;
+ cams_wcs_transform.invert(wcs_camcs_tranform);
+
+ MT_Matrix4x4 camcs_wcs_matrix =
MT_Matrix4x4(cams_wcs_transform);
- /* camera to world */
- MT_Transform wcs_camcs_tranform = cam->GetWorldToCamera();
- if (!cam->GetCameraData()->m_perspective)
- wcs_camcs_tranform.getOrigin()[2] *= 100.0;
- MT_Transform cams_wcs_transform;
- cams_wcs_transform.invert(wcs_camcs_tranform);
-
- MT_Matrix4x4 camcs_wcs_matrix = MT_Matrix4x4(cams_wcs_transform);
+ /* badly defined, the first time round.... I
wonder why... I might
+ * want to guard against floating point errors
here.*/
+ MT_Matrix4x4 clip_camcs_matrix =
MT_Matrix4x4(cam->GetProjectionMatrix());
+ clip_camcs_matrix.invert();
- /* badly defined, the first time round.... I wonder why... I might
- * want to guard against floating point errors here.*/
- MT_Matrix4x4 clip_camcs_matrix =
MT_Matrix4x4(cam->GetProjectionMatrix());
- clip_camcs_matrix.invert();
+ /* shoot-points: clip to cam to wcs . win to
clip was already done.*/
+ frompoint = clip_camcs_matrix * frompoint;
+ topoint = clip_camcs_matrix * topoint;
+ frompoint = camcs_wcs_matrix * frompoint;
+ topoint = camcs_wcs_matrix * topoint;
+
+ /* from hom wcs to 3d wcs: */
+ m_prevSourcePoint.setValue(
frompoint[0]/frompoint[3],
+
frompoint[1]/frompoint[3],
+
frompoint[2]/frompoint[3]);
+
+ m_prevTargetPoint.setValue(
topoint[0]/topoint[3],
+
topoint[1]/topoint[3],
+
topoint[2]/topoint[3]);
+
+ /* 2. Get the object from PhysicsEnvironment */
+ /* Shoot! Beware that the first argument here
is an
+ * ignore-object. We don't ignore anything... */
+ KX_IPhysicsController* physics_controller =
cam->GetPhysicsController();
+ PHY_IPhysicsEnvironment* physics_environment =
m_kxscene->GetPhysicsEnvironment();
- /* shoot-points: clip to cam to wcs . win to clip was already done.*/
- frompoint = clip_camcs_matrix * frompoint;
- topoint = clip_camcs_matrix * topoint;
- frompoint = camcs_wcs_matrix * frompoint;
- topoint = camcs_wcs_matrix * topoint;
+ KX_RayCast::Callback<KX_MouseFocusSensor>
callback(this,physics_controller);
+
+ KX_RayCast::RayTest(physics_environment,
m_prevSourcePoint, m_prevTargetPoint, callback);
+
+ if (m_hitObject) {
+ result= true;
+ break;
+ }
+ }
+ }
+ it++;
+ }
- /* from hom wcs to 3d wcs: */
- MT_Point3 frompoint3 = MT_Point3(frompoint[0]/frompoint[3],
-
frompoint[1]/frompoint[3],
-
frompoint[2]/frompoint[3]);
- MT_Point3 topoint3 = MT_Point3(topoint[0]/topoint[3],
-
topoint[1]/topoint[3],
-
topoint[2]/topoint[3]);
- m_prevTargetPoint = topoint3;
- m_prevSourcePoint = frompoint3;
-
- /* 2. Get the object from PhysicsEnvironment */
- /* Shoot! Beware that the first argument here is an
- * ignore-object. We don't ignore anything... */
-
- KX_IPhysicsController* physics_controller = cam->GetPhysicsController();
- PHY_IPhysicsEnvironment* physics_environment =
m_kxscene->GetPhysicsEnvironment();
-
- bool result = false;
-
- KX_RayCast::Callback<KX_MouseFocusSensor>
callback(this,physics_controller);
- KX_RayCast::RayTest(physics_environment, frompoint3, topoint3,
callback);
-
- result = (m_hitObject!=0);
-
return result;
-
}
/* ------------------------------------------------------------------------- */
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