kindred/create
1
1
Fork 0
Code Issues 30 Pull Requests Actions Packages Projects 9 Releases 2 Wiki Activity

Gui: Fix window center rotation mode and orthographic view clipping

Browse Source
This commit is contained in:
Rexbas
2023-11-05 16:01:14 +01:00
parent 9de796d4e6
commit 93468a5e0b
1 changed files with 25 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
src/Gui/NavigationStyle.cpp
View File

@@ -503,17 +503,37 @@ void NavigationStyle::reorientCamera(SoCamera* camera, const SbRotation& rotatio
// Set new orientation value by accumulating the new rotation
camera->orientation = rotation * camera->orientation.getValue();
// Fix issue with near clipping in orthogonal view
if (camera->getTypeId().isDerivedFrom(SoOrthographicCamera::getClassTypeId())) {
camera->focalDistance = static_cast<SoOrthographicCamera*>(camera)->height;
}
// Distance from rotation center to new camera position in global coordinate system
SbVec3f newRotationCenterDistance;
camera->orientation.getValue().multVec(rotationCenterDistanceCam, newRotationCenterDistance);
// Reposition camera so the rotation center stays in the same place
camera->position = rotationCenter + newRotationCenterDistance;
// Fix issue with near clipping in orthogonal view
if (camera->getTypeId().isDerivedFrom(SoOrthographicCamera::getClassTypeId())) {
// Find a bounding sphere for the scene
SoGetBoundingBoxAction action(viewer->getSoRenderManager()->getViewportRegion());
action.apply(viewer->getSceneGraph());
SbSphere boundingSphere;
boundingSphere.circumscribe(action.getBoundingBox());
// The center of the bounding sphere in camera coordinate system
SbVec3f center;
camera->orientation.getValue().inverse().multVec(boundingSphere.getCenter() - camera->position.getValue(), center);
SbVec3f dir;
camera->orientation.getValue().multVec(SbVec3f(0, 0, -1), dir);
// Reposition the camera but keep the focal point the same
// nearDistance is 0 and farDistance is the diameter of the bounding sphere
float repositionDistance = -center.getValue()[2] - boundingSphere.getRadius();
camera->position = camera->position.getValue() + repositionDistance * dir;
camera->nearDistance = 0;
camera->farDistance = 2 * boundingSphere.getRadius();
camera->focalDistance = camera->focalDistance.getValue() - repositionDistance;
}
}
void NavigationStyle::panCamera(SoCamera * cam, float aspectratio, const SbPlane & panplane,