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Corrected rotation gizmo plane math for off-center perspective view.

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This commit is contained in:
Zi Ye 2024-08-11 14:19:23 -05:00
parent 88f3b5f9d5
commit 1fc8255355
1 changed files with 13 additions and 3 deletions
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16
editor/plugins/node_3d_editor_plugin.cpp
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@ -5001,14 +5001,24 @@ void Node3DEditorViewport::update_transform(bool p_shift) {
} break; } break;
case TRANSFORM_ROTATE: { case TRANSFORM_ROTATE: {
Plane plane = Plane(_get_camera_normal(), _edit.center); Plane plane;
if (camera->get_projection() == Camera3D::PROJECTION_PERSPECTIVE) {
Vector3 cam_to_obj = _edit.center - _get_camera_position();
if (!cam_to_obj.is_zero_approx()) {
plane = Plane(cam_to_obj.normalized(), _edit.center);
} else {
plane = Plane(_get_camera_normal(), _edit.center);
}
} else {
plane = Plane(_get_camera_normal(), _edit.center);
}
Vector3 local_axis; Vector3 local_axis;
Vector3 global_axis; Vector3 global_axis;
switch (_edit.plane) { switch (_edit.plane) {
case TRANSFORM_VIEW: case TRANSFORM_VIEW:
// local_axis unused // local_axis unused
global_axis = _get_camera_normal(); global_axis = plane.normal;
break; break;
case TRANSFORM_X_AXIS: case TRANSFORM_X_AXIS:
local_axis = Vector3(1, 0, 0); local_axis = Vector3(1, 0, 0);
@ -5039,7 +5049,7 @@ void Node3DEditorViewport::update_transform(bool p_shift) {
break; break;
} }
static const float orthogonal_threshold = Math::cos(Math::deg_to_rad(87.0f)); static const float orthogonal_threshold = Math::cos(Math::deg_to_rad(85.0f));
bool axis_is_orthogonal = ABS(plane.normal.dot(global_axis)) < orthogonal_threshold; bool axis_is_orthogonal = ABS(plane.normal.dot(global_axis)) < orthogonal_threshold;
double angle = 0.0f; double angle = 0.0f;