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2aa4aa78e2a2e0d10dfd95a5dcb49171f1b02b18
SingularityViewer/indra/newview/llmaniprotate.cpp
Shyotl a07e399801 LLAgentCamera transition (1/2)
2011-06-07 21:35:10 -05:00

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/**
* @file llmaniprotate.cpp
* @brief LLManipRotate class implementation
*
* $LicenseInfo:firstyear=2002&license=viewergpl$
*
* Copyright (c) 2002-2009, Linden Research, Inc.
*
* Second Life Viewer Source Code
* The source code in this file ("Source Code") is provided by Linden Lab
* to you under the terms of the GNU General Public License, version 2.0
* ("GPL"), unless you have obtained a separate licensing agreement
* ("Other License"), formally executed by you and Linden Lab. Terms of
* the GPL can be found in doc/GPL-license.txt in this distribution, or
* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
*
* There are special exceptions to the terms and conditions of the GPL as
* it is applied to this Source Code. View the full text of the exception
* in the file doc/FLOSS-exception.txt in this software distribution, or
* online at
* http://secondlifegrid.net/programs/open_source/licensing/flossexception
*
* By copying, modifying or distributing this software, you acknowledge
* that you have read and understood your obligations described above,
* and agree to abide by those obligations.
*
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
* COMPLETENESS OR PERFORMANCE.
* $/LicenseInfo$
*/
#include "llviewerprecompiledheaders.h"
#include "llmaniprotate.h"
// library includes
#include "llmath.h"
#include "llgl.h"
#include "llrender.h"
#include "v4color.h"
#include "llprimitive.h"
#include "llview.h"
#include "llfontgl.h"
// viewer includes
#include "llagent.h"
#include "llagentcamera.h"
#include "llbox.h"
#include "llbutton.h"
#include "llviewercontrol.h"
#include "llcriticaldamp.h"
#include "llhoverview.h"
#include "llfloatertools.h"
#include "llselectmgr.h"
#include "llstatusbar.h"
#include "llui.h"
#include "llvoavatar.h"
#include "llviewercamera.h"
#include "llviewerobject.h"
#include "llviewerobject.h"
#include "llviewerwindow.h"
#include "llworld.h"
#include "pipeline.h"
#include "lldrawable.h"
#include "llglheaders.h"
const F32 RADIUS_PIXELS = 100.f; // size in screen space
const F32 SQ_RADIUS = RADIUS_PIXELS * RADIUS_PIXELS;
const F32 WIDTH_PIXELS = 8;
const S32 CIRCLE_STEPS = 100;
const F32 DELTA = F_TWO_PI / CIRCLE_STEPS;
const F32 SIN_DELTA = sin( DELTA );
const F32 COS_DELTA = cos( DELTA );
const F32 MAX_MANIP_SELECT_DISTANCE = 100.f;
const F32 SNAP_ANGLE_INCREMENT = 5.625f;
const F32 SNAP_ANGLE_DETENTE = SNAP_ANGLE_INCREMENT;
const F32 SNAP_GUIDE_RADIUS_1 = 2.8f;
const F32 SNAP_GUIDE_RADIUS_2 = 2.4f;
const F32 SNAP_GUIDE_RADIUS_3 = 2.2f;
const F32 SNAP_GUIDE_RADIUS_4 = 2.1f;
const F32 SNAP_GUIDE_RADIUS_5 = 2.05f;
const F32 SNAP_GUIDE_INNER_RADIUS = 2.f;
const F32 AXIS_ONTO_CAM_TOLERANCE = cos( 80.f * DEG_TO_RAD );
const F32 SELECTED_MANIPULATOR_SCALE = 1.05f;
const F32 MANIPULATOR_SCALE_HALF_LIFE = 0.07f;
extern void handle_reset_rotation(void*); // in LLViewerWindow
LLManipRotate::LLManipRotate( LLToolComposite* composite )
: LLManip( std::string("Rotate"), composite ),
mRotationCenter(),
mCenterScreen(),
mRotation(),
mMouseDown(),
mMouseCur(),
mRadiusMeters(0.f),
mCenterToCam(),
mCenterToCamNorm(),
mCenterToCamMag(0.f),
mCenterToProfilePlane(),
mCenterToProfilePlaneMag(0.f),
mSendUpdateOnMouseUp( FALSE ),
mSmoothRotate( FALSE ),
mCamEdgeOn(FALSE),
mManipulatorScales(1.f, 1.f, 1.f, 1.f)
{ }
void LLManipRotate::handleSelect()
{
// *FIX: put this in mouseDown?
LLSelectMgr::getInstance()->saveSelectedObjectTransform(SELECT_ACTION_TYPE_PICK);
gFloaterTools->setStatusText("rotate");
LLManip::handleSelect();
}
void LLManipRotate::render()
{
LLGLSUIDefault gls_ui;
gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
LLGLDepthTest gls_depth(GL_TRUE);
LLGLEnable gl_blend(GL_BLEND);
LLGLEnable gls_alpha_test(GL_ALPHA_TEST);
// You can rotate if you can move
LLViewerObject* first_object = mObjectSelection->getFirstMoveableObject(TRUE);
if( !first_object )
{
return;
}
if( !updateVisiblity() )
{
return;
}
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
if (mObjectSelection->getSelectType() == SELECT_TYPE_HUD)
{
F32 zoom = gAgentCamera.mHUDCurZoom;
glScalef(zoom, zoom, zoom);
}
LLVector3 center = gAgent.getPosAgentFromGlobal( mRotationCenter );
LLColor4 highlight_outside( 1.f, 1.f, 0.f, 1.f );
LLColor4 highlight_inside( 0.7f, 0.7f, 0.f, 0.5f );
F32 width_meters = WIDTH_PIXELS * mRadiusMeters / RADIUS_PIXELS;
glPushMatrix();
{
// are we in the middle of a constrained drag?
if (mManipPart >= LL_ROT_X && mManipPart <= LL_ROT_Z)
{
renderSnapGuides();
}
else
{
LLGLEnable cull_face(GL_CULL_FACE);
LLGLDepthTest gls_depth(GL_FALSE);
glPushMatrix();
{
// Draw "sphere" (intersection of sphere with tangent cone that has apex at camera)
glTranslatef( mCenterToProfilePlane.mV[VX], mCenterToProfilePlane.mV[VY], mCenterToProfilePlane.mV[VZ] );
glTranslatef( center.mV[VX], center.mV[VY], center.mV[VZ] );
// Inverse change of basis vectors
LLVector3 forward = mCenterToCamNorm;
LLVector3 left = gAgent.getUpAxis() % forward;
left.normVec();
LLVector3 up = forward % left;
LLVector4 a(-forward);
a.mV[3] = 0;
LLVector4 b(up);
b.mV[3] = 0;
LLVector4 c(left);
c.mV[3] = 0;
LLMatrix4 mat;
mat.initRows(a, b, c, LLVector4(0.f, 0.f, 0.f, 1.f));
glMultMatrixf( &mat.mMatrix[0][0] );
glRotatef( -90, 0.f, 1.f, 0.f);
LLColor4 color;
if (mManipPart == LL_ROT_ROLL || mHighlightedPart == LL_ROT_ROLL)
{
color.setVec(0.8f, 0.8f, 0.8f, 0.8f);
glScalef(mManipulatorScales.mV[VW], mManipulatorScales.mV[VW], mManipulatorScales.mV[VW]);
}
else
{
color.setVec( 0.7f, 0.7f, 0.7f, 0.6f );
}
gl_washer_2d(mRadiusMeters + width_meters, mRadiusMeters, CIRCLE_STEPS, color, color);
if (mManipPart == LL_NO_PART)
{
gGL.color4f( 0.7f, 0.7f, 0.7f, 0.3f );
gl_circle_2d( 0, 0, mRadiusMeters, CIRCLE_STEPS, TRUE );
}
GLdouble plane_eqn[] = { 0, 0, 1, 0 };
glClipPlane( GL_CLIP_PLANE0, plane_eqn );
}
glPopMatrix();
}
glTranslatef( center.mV[VX], center.mV[VY], center.mV[VZ] );
LLQuaternion rot;
F32 angle_radians, x, y, z;
LLVector3 grid_origin;
LLVector3 grid_scale;
LLQuaternion grid_rotation;
LLSelectMgr::getInstance()->getGrid(grid_origin, grid_rotation, grid_scale);
grid_rotation.getAngleAxis(&angle_radians, &x, &y, &z);
glRotatef(angle_radians * RAD_TO_DEG, x, y, z);
if (mManipPart == LL_ROT_Z)
{
mManipulatorScales = lerp(mManipulatorScales, LLVector4(1.f, 1.f, SELECTED_MANIPULATOR_SCALE, 1.f), LLCriticalDamp::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE));
glPushMatrix();
{
// selected part
glScalef(mManipulatorScales.mV[VZ], mManipulatorScales.mV[VZ], mManipulatorScales.mV[VZ]);
renderActiveRing( mRadiusMeters, width_meters, LLColor4( 0.f, 0.f, 1.f, 1.f) , LLColor4( 0.f, 0.f, 1.f, 0.3f ));
}
glPopMatrix();
}
else if (mManipPart == LL_ROT_Y)
{
mManipulatorScales = lerp(mManipulatorScales, LLVector4(1.f, SELECTED_MANIPULATOR_SCALE, 1.f, 1.f), LLCriticalDamp::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE));
glPushMatrix();
{
glRotatef( 90.f, 1.f, 0.f, 0.f );
glScalef(mManipulatorScales.mV[VY], mManipulatorScales.mV[VY], mManipulatorScales.mV[VY]);
renderActiveRing( mRadiusMeters, width_meters, LLColor4( 0.f, 1.f, 0.f, 1.f), LLColor4( 0.f, 1.f, 0.f, 0.3f));
}
glPopMatrix();
}
else if (mManipPart == LL_ROT_X)
{
mManipulatorScales = lerp(mManipulatorScales, LLVector4(SELECTED_MANIPULATOR_SCALE, 1.f, 1.f, 1.f), LLCriticalDamp::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE));
glPushMatrix();
{
glRotatef( 90.f, 0.f, 1.f, 0.f );
glScalef(mManipulatorScales.mV[VX], mManipulatorScales.mV[VX], mManipulatorScales.mV[VX]);
renderActiveRing( mRadiusMeters, width_meters, LLColor4( 1.f, 0.f, 0.f, 1.f), LLColor4( 1.f, 0.f, 0.f, 0.3f));
}
glPopMatrix();
}
else if (mManipPart == LL_ROT_ROLL)
{
mManipulatorScales = lerp(mManipulatorScales, LLVector4(1.f, 1.f, 1.f, SELECTED_MANIPULATOR_SCALE), LLCriticalDamp::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE));
}
else if (mManipPart == LL_NO_PART)
{
if (mHighlightedPart == LL_NO_PART)
{
mManipulatorScales = lerp(mManipulatorScales, LLVector4(1.f, 1.f, 1.f, 1.f), LLCriticalDamp::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE));
}
LLGLEnable cull_face(GL_CULL_FACE);
LLGLEnable clip_plane0(GL_CLIP_PLANE0);
LLGLDepthTest gls_depth(GL_FALSE);
// First pass: centers. Second pass: sides.
for( S32 i=0; i<2; i++ )
{
glPushMatrix();
{
if (mHighlightedPart == LL_ROT_Z)
{
mManipulatorScales = lerp(mManipulatorScales, LLVector4(1.f, 1.f, SELECTED_MANIPULATOR_SCALE, 1.f), LLCriticalDamp::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE));
glScalef(mManipulatorScales.mV[VZ], mManipulatorScales.mV[VZ], mManipulatorScales.mV[VZ]);
// hovering over part
gl_ring( mRadiusMeters, width_meters, LLColor4( 0.f, 0.f, 1.f, 1.f ), LLColor4( 0.f, 0.f, 1.f, 0.5f ), CIRCLE_STEPS, i);
}
else
{
// default
gl_ring( mRadiusMeters, width_meters, LLColor4( 0.f, 0.f, 0.8f, 0.8f ), LLColor4( 0.f, 0.f, 0.8f, 0.4f ), CIRCLE_STEPS, i);
}
}
glPopMatrix();
glPushMatrix();
{
glRotatef( 90.f, 1.f, 0.f, 0.f );
if (mHighlightedPart == LL_ROT_Y)
{
mManipulatorScales = lerp(mManipulatorScales, LLVector4(1.f, SELECTED_MANIPULATOR_SCALE, 1.f, 1.f), LLCriticalDamp::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE));
glScalef(mManipulatorScales.mV[VY], mManipulatorScales.mV[VY], mManipulatorScales.mV[VY]);
// hovering over part
gl_ring( mRadiusMeters, width_meters, LLColor4( 0.f, 1.f, 0.f, 1.f ), LLColor4( 0.f, 1.f, 0.f, 0.5f ), CIRCLE_STEPS, i);
}
else
{
// default
gl_ring( mRadiusMeters, width_meters, LLColor4( 0.f, 0.8f, 0.f, 0.8f ), LLColor4( 0.f, 0.8f, 0.f, 0.4f ), CIRCLE_STEPS, i);
}
}
glPopMatrix();
glPushMatrix();
{
glRotatef( 90.f, 0.f, 1.f, 0.f );
if (mHighlightedPart == LL_ROT_X)
{
mManipulatorScales = lerp(mManipulatorScales, LLVector4(SELECTED_MANIPULATOR_SCALE, 1.f, 1.f, 1.f), LLCriticalDamp::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE));
glScalef(mManipulatorScales.mV[VX], mManipulatorScales.mV[VX], mManipulatorScales.mV[VX]);
// hovering over part
gl_ring( mRadiusMeters, width_meters, LLColor4( 1.f, 0.f, 0.f, 1.f ), LLColor4( 1.f, 0.f, 0.f, 0.5f ), CIRCLE_STEPS, i);
}
else
{
// default
gl_ring( mRadiusMeters, width_meters, LLColor4( 0.8f, 0.f, 0.f, 0.8f ), LLColor4( 0.8f, 0.f, 0.f, 0.4f ), CIRCLE_STEPS, i);
}
}
glPopMatrix();
if (mHighlightedPart == LL_ROT_ROLL)
{
mManipulatorScales = lerp(mManipulatorScales, LLVector4(1.f, 1.f, 1.f, SELECTED_MANIPULATOR_SCALE), LLCriticalDamp::getInterpolant(MANIPULATOR_SCALE_HALF_LIFE));
}
}
}
}
glPopMatrix();
glPopMatrix();
LLVector3 euler_angles;
LLQuaternion object_rot = first_object->getRotationEdit();
object_rot.getEulerAngles(&(euler_angles.mV[VX]), &(euler_angles.mV[VY]), &(euler_angles.mV[VZ]));
euler_angles *= RAD_TO_DEG;
euler_angles.mV[VX] = llround(fmodf(euler_angles.mV[VX] + 360.f, 360.f), 0.05f);
euler_angles.mV[VY] = llround(fmodf(euler_angles.mV[VY] + 360.f, 360.f), 0.05f);
euler_angles.mV[VZ] = llround(fmodf(euler_angles.mV[VZ] + 360.f, 360.f), 0.05f);
renderXYZ(euler_angles);
}
BOOL LLManipRotate::handleMouseDown(S32 x, S32 y, MASK mask)
{
BOOL handled = FALSE;
LLViewerObject* first_object = mObjectSelection->getFirstMoveableObject(TRUE);
if( first_object )
{
if( mHighlightedPart != LL_NO_PART )
{
handled = handleMouseDownOnPart( x, y, mask );
}
}
return handled;
}
// Assumes that one of the parts of the manipulator was hit.
BOOL LLManipRotate::handleMouseDownOnPart( S32 x, S32 y, MASK mask )
{
BOOL can_rotate = canAffectSelection();
if (!can_rotate)
{
return FALSE;
}
highlightManipulators(x, y);
S32 hit_part = mHighlightedPart;
// we just started a drag, so save initial object positions
LLSelectMgr::getInstance()->saveSelectedObjectTransform(SELECT_ACTION_TYPE_ROTATE);
// save selection center
mRotationCenter = gAgent.getPosGlobalFromAgent( getPivotPoint() ); //LLSelectMgr::getInstance()->getSelectionCenterGlobal();
mManipPart = (EManipPart)hit_part;
LLVector3 center = gAgent.getPosAgentFromGlobal( mRotationCenter );
if( mManipPart == LL_ROT_GENERAL)
{
mMouseDown = intersectMouseWithSphere( x, y, center, mRadiusMeters);
}
else
{
// Project onto the plane of the ring
LLVector3 axis = getConstraintAxis();
F32 axis_onto_cam = llabs( axis * mCenterToCamNorm );
const F32 AXIS_ONTO_CAM_TOL = cos( 85.f * DEG_TO_RAD );
if( axis_onto_cam < AXIS_ONTO_CAM_TOL )
{
LLVector3 up_from_axis = mCenterToCamNorm % axis;
up_from_axis.normVec();
LLVector3 cur_intersection;
getMousePointOnPlaneAgent(cur_intersection, x, y, center, mCenterToCam);
cur_intersection -= center;
mMouseDown = projected_vec(cur_intersection, up_from_axis);
F32 mouse_depth = SNAP_GUIDE_INNER_RADIUS * mRadiusMeters;
F32 mouse_dist_sqrd = mMouseDown.magVecSquared();
if (mouse_dist_sqrd > 0.0001f)
{
mouse_depth = sqrtf((SNAP_GUIDE_INNER_RADIUS * mRadiusMeters) * (SNAP_GUIDE_INNER_RADIUS * mRadiusMeters) -
mouse_dist_sqrd);
}
LLVector3 projected_center_to_cam = mCenterToCamNorm - projected_vec(mCenterToCamNorm, axis);
mMouseDown += mouse_depth * projected_center_to_cam;
}
else
{
mMouseDown = findNearestPointOnRing( x, y, center, axis ) - center;
mMouseDown.normVec();
}
}
mMouseCur = mMouseDown;
// Route future Mouse messages here preemptively. (Release on mouse up.)
setMouseCapture( TRUE );
LLSelectMgr::getInstance()->enableSilhouette(FALSE);
return TRUE;
}
LLVector3 LLManipRotate::findNearestPointOnRing( S32 x, S32 y, const LLVector3& center, const LLVector3& axis )
{
// Project the delta onto the ring and rescale it by the radius so that it's _on_ the ring.
LLVector3 proj_onto_ring;
getMousePointOnPlaneAgent(proj_onto_ring, x, y, center, axis);
proj_onto_ring -= center;
proj_onto_ring.normVec();
return center + proj_onto_ring * mRadiusMeters;
}
BOOL LLManipRotate::handleMouseUp(S32 x, S32 y, MASK mask)
{
// first, perform normal processing in case this was a quick-click
handleHover(x, y, mask);
if( hasMouseCapture() )
{
for (LLObjectSelection::iterator iter = mObjectSelection->begin();
iter != mObjectSelection->end(); iter++)
{
LLSelectNode* selectNode = *iter;
LLViewerObject* object = selectNode->getObject();
// have permission to move and object is root of selection or individually selected
if (object->permMove() && (object->isRootEdit() || selectNode->mIndividualSelection))
{
object->mUnselectedChildrenPositions.clear() ;
}
}
mManipPart = LL_NO_PART;
// Might have missed last update due to timing.
LLSelectMgr::getInstance()->sendMultipleUpdate( UPD_ROTATION | UPD_POSITION );
LLSelectMgr::getInstance()->enableSilhouette(TRUE);
//gAgent.setObjectTracking(gSavedSettings.getBOOL("TrackFocusObject"));
LLSelectMgr::getInstance()->updateSelectionCenter();
LLSelectMgr::getInstance()->saveSelectedObjectTransform(SELECT_ACTION_TYPE_PICK);
}
return LLManip::handleMouseUp(x, y, mask);
}
BOOL LLManipRotate::handleHover(S32 x, S32 y, MASK mask)
{
if( hasMouseCapture() )
{
if( mObjectSelection->isEmpty() )
{
// Somehow the object got deselected while we were dragging it.
setMouseCapture( FALSE );
}
else
{
drag(x, y);
}
lldebugst(LLERR_USER_INPUT) << "hover handled by LLManipRotate (active)" << llendl;
}
else
{
highlightManipulators(x, y);
lldebugst(LLERR_USER_INPUT) << "hover handled by LLManipRotate (inactive)" << llendl;
}
gViewerWindow->setCursor(UI_CURSOR_TOOLROTATE);
return TRUE;
}
LLVector3 LLManipRotate::projectToSphere( F32 x, F32 y, BOOL* on_sphere )
{
F32 z = 0.f;
F32 dist_squared = x*x + y*y;
*on_sphere = dist_squared <= SQ_RADIUS;
if( *on_sphere )
{
z = sqrt(SQ_RADIUS - dist_squared);
}
return LLVector3( x, y, z );
}
// Freeform rotation
void LLManipRotate::drag( S32 x, S32 y )
{
if( !updateVisiblity() )
{
return;
}
if( mManipPart == LL_ROT_GENERAL )
{
mRotation = dragUnconstrained(x, y);
}
else
{
mRotation = dragConstrained(x, y);
}
BOOL damped = mSmoothRotate;
mSmoothRotate = FALSE;
for (LLObjectSelection::iterator iter = mObjectSelection->begin();
iter != mObjectSelection->end(); iter++)
{
LLSelectNode* selectNode = *iter;
LLViewerObject* object = selectNode->getObject();
// have permission to move and object is root of selection or individually selected
if (object->permMove() && (object->isRootEdit() || selectNode->mIndividualSelection))
{
if (!object->isRootEdit())
{
// child objects should not update if parent is selected
LLViewerObject* editable_root = (LLViewerObject*)object->getParent();
if (editable_root->isSelected())
{
// we will be moved properly by our parent, so skip
continue;
}
}
LLQuaternion new_rot = selectNode->mSavedRotation * mRotation;
std::vector<LLVector3>& child_positions = object->mUnselectedChildrenPositions ;
std::vector<LLQuaternion> child_rotations;
if (object->isRootEdit() && selectNode->mIndividualSelection)
{
object->saveUnselectedChildrenRotation(child_rotations) ;
object->saveUnselectedChildrenPosition(child_positions) ;
}
if (object->getParent() && object->mDrawable.notNull())
{
LLQuaternion invParentRotation = object->mDrawable->mXform.getParent()->getWorldRotation();
invParentRotation.transQuat();
object->setRotation(new_rot * invParentRotation, damped);
rebuild(object);
}
else
{
object->setRotation(new_rot, damped);
rebuild(object);
}
// for individually selected roots, we need to counterrotate all the children
if (object->isRootEdit() && selectNode->mIndividualSelection)
{
//RN: must do non-damped updates on these objects so relative rotation appears constant
// instead of having two competing slerps making the child objects appear to "wobble"
object->resetChildrenRotationAndPosition(child_rotations, child_positions) ;
}
}
}
// update positions
for (LLObjectSelection::iterator iter = mObjectSelection->begin();
iter != mObjectSelection->end(); iter++)
{
LLSelectNode* selectNode = *iter;
LLViewerObject* object = selectNode->getObject();
// to avoid cumulative position changes we calculate the objects new position using its saved position
if (object && object->permMove())
{
LLVector3 center = gAgent.getPosAgentFromGlobal( mRotationCenter );
LLVector3 old_position;
LLVector3 new_position;
if (object->isAttachment() && object->mDrawable.notNull())
{
// need to work in drawable space to handle selected items from multiple attachments
// (which have no shared frame of reference other than their render positions)
LLXform* parent_xform = object->mDrawable->getXform()->getParent();
new_position = (selectNode->mSavedPositionLocal * parent_xform->getWorldRotation()) + parent_xform->getWorldPosition();
old_position = (object->getPosition() * parent_xform->getWorldRotation()) + parent_xform->getWorldPosition();//object->getRenderPosition();
}
else
{
new_position = gAgent.getPosAgentFromGlobal( selectNode->mSavedPositionGlobal );
old_position = object->getPositionAgent();
}
new_position = (new_position - center) * mRotation; // new relative rotated position
new_position += center;
if (object->isRootEdit() && !object->isAttachment())
{
LLVector3d new_pos_global = gAgent.getPosGlobalFromAgent(new_position);
new_pos_global = LLWorld::getInstance()->clipToVisibleRegions(selectNode->mSavedPositionGlobal, new_pos_global);
new_position = gAgent.getPosAgentFromGlobal(new_pos_global);
}
// for individually selected child objects
if (!object->isRootEdit() && selectNode->mIndividualSelection)
{
LLViewerObject* parentp = (LLViewerObject*)object->getParent();
if (!parentp->isSelected())
{
if (object->isAttachment() && object->mDrawable.notNull())
{
// find position relative to render position of parent
object->setPosition((new_position - parentp->getRenderPosition()) * ~parentp->getRenderRotation());
rebuild(object);
}
else
{
object->setPositionParent((new_position - parentp->getPositionAgent()) * ~parentp->getRotationRegion());
rebuild(object);
}
}
}
else if (object->isRootEdit())
{
if (object->isAttachment() && object->mDrawable.notNull())
{
LLXform* parent_xform = object->mDrawable->getXform()->getParent();
object->setPosition((new_position - parent_xform->getWorldPosition()) * ~parent_xform->getWorldRotation());
rebuild(object);
}
else
{
object->setPositionAgent(new_position);
rebuild(object);
}
}
// for individually selected roots, we need to counter-translate all unselected children
if (object->isRootEdit() && selectNode->mIndividualSelection)
{
// only offset by parent's translation as we've already countered parent's rotation
rebuild(object);
object->resetChildrenPosition(old_position - new_position) ;
}
}
}
// store changes to override updates
for (LLObjectSelection::iterator iter = LLSelectMgr::getInstance()->getSelection()->begin();
iter != LLSelectMgr::getInstance()->getSelection()->end(); iter++)
{
LLSelectNode* selectNode = *iter;
LLViewerObject*cur = selectNode->getObject();
if( cur->permModify() && cur->permMove() && !cur->isAvatar())
{
selectNode->mLastRotation = cur->getRotation();
selectNode->mLastPositionLocal = cur->getPosition();
}
}
LLSelectMgr::getInstance()->updateSelectionCenter();
// RN: just clear focus so camera doesn't follow spurious object updates
gAgentCamera.clearFocusObject();
dialog_refresh_all();
}
void LLManipRotate::renderActiveRing( F32 radius, F32 width, const LLColor4& front_color, const LLColor4& back_color)
{
LLGLEnable cull_face(GL_CULL_FACE);
{
gl_ring(radius, width, back_color, back_color * 0.5f, CIRCLE_STEPS, FALSE);
gl_ring(radius, width, back_color, back_color * 0.5f, CIRCLE_STEPS, TRUE);
}
{
LLGLDepthTest gls_depth(GL_FALSE);
gl_ring(radius, width, front_color, front_color * 0.5f, CIRCLE_STEPS, FALSE);
gl_ring(radius, width, front_color, front_color * 0.5f, CIRCLE_STEPS, TRUE);
}
}
void LLManipRotate::renderSnapGuides()
{
LLVector3 grid_origin;
LLVector3 grid_scale;
LLQuaternion grid_rotation;
LLVector3 constraint_axis = getConstraintAxis();
LLSelectMgr::getInstance()->getGrid(grid_origin, grid_rotation, grid_scale);
if (!gSavedSettings.getBOOL("SnapEnabled"))
{
return;
}
LLVector3 center = gAgent.getPosAgentFromGlobal( mRotationCenter );
LLVector3 cam_at_axis;
if (mObjectSelection->getSelectType() == SELECT_TYPE_HUD)
{
cam_at_axis.setVec(1.f, 0.f, 0.f);
}
else
{
cam_at_axis = center - gAgentCamera.getCameraPositionAgent();
cam_at_axis.normVec();
}
LLVector3 world_snap_axis;
LLVector3 test_axis = constraint_axis;
BOOL constrain_to_ref_object = FALSE;
if (mObjectSelection->getSelectType() == SELECT_TYPE_ATTACHMENT && gAgent.getAvatarObject())
{
test_axis = test_axis * ~grid_rotation;
}
else if (LLSelectMgr::getInstance()->getGridMode() == GRID_MODE_REF_OBJECT)
{
test_axis = test_axis * ~grid_rotation;
constrain_to_ref_object = TRUE;
}
test_axis.abs();
// find closest global/reference axis to local constraint axis;
if (test_axis.mV[VX] > test_axis.mV[VY] && test_axis.mV[VX] > test_axis.mV[VZ])
{
world_snap_axis = LLVector3::y_axis;
}
else if (test_axis.mV[VY] > test_axis.mV[VZ])
{
world_snap_axis = LLVector3::z_axis;
}
else
{
world_snap_axis = LLVector3::x_axis;
}
LLVector3 projected_snap_axis = world_snap_axis;
if (mObjectSelection->getSelectType() == SELECT_TYPE_ATTACHMENT && gAgent.getAvatarObject())
{
projected_snap_axis = projected_snap_axis * grid_rotation;
}
else if (constrain_to_ref_object)
{
projected_snap_axis = projected_snap_axis * grid_rotation;
}
// project world snap axis onto constraint plane
projected_snap_axis -= projected_vec(projected_snap_axis, constraint_axis);
projected_snap_axis.normVec();
S32 num_rings = mCamEdgeOn ? 2 : 1;
for (S32 ring_num = 0; ring_num < num_rings; ring_num++)
{
LLVector3 center = gAgent.getPosAgentFromGlobal( mRotationCenter );
if (mCamEdgeOn)
{
// draw two opposing rings
if (ring_num == 0)
{
center += constraint_axis * mRadiusMeters * 0.5f;
}
else
{
center -= constraint_axis * mRadiusMeters * 0.5f;
}
}
LLGLDepthTest gls_depth(GL_FALSE);
for (S32 pass = 0; pass < 3; pass++)
{
// render snap guide ring
glPushMatrix();
LLQuaternion snap_guide_rot;
F32 angle_radians, x, y, z;
snap_guide_rot.shortestArc(LLVector3::z_axis, getConstraintAxis());
snap_guide_rot.getAngleAxis(&angle_radians, &x, &y, &z);
glTranslatef(center.mV[VX], center.mV[VY], center.mV[VZ]);
glRotatef(angle_radians * RAD_TO_DEG, x, y, z);
LLColor4 line_color = setupSnapGuideRenderPass(pass);
gGL.color4fv(line_color.mV);
if (mCamEdgeOn)
{
// render an arc
LLVector3 edge_normal = cam_at_axis % constraint_axis;
edge_normal.normVec();
LLVector3 x_axis_snap = LLVector3::x_axis * snap_guide_rot;
LLVector3 y_axis_snap = LLVector3::y_axis * snap_guide_rot;
F32 end_angle = atan2(y_axis_snap * edge_normal, x_axis_snap * edge_normal);
//F32 start_angle = angle_between((-1.f * LLVector3::x_axis) * snap_guide_rot, edge_normal);
F32 start_angle = end_angle - F_PI;
gl_arc_2d(0.f, 0.f, mRadiusMeters * SNAP_GUIDE_INNER_RADIUS, CIRCLE_STEPS, FALSE, start_angle, end_angle);
}
else
{
gl_circle_2d(0.f, 0.f, mRadiusMeters * SNAP_GUIDE_INNER_RADIUS, CIRCLE_STEPS, FALSE);
}
glPopMatrix();
for (S32 i = 0; i < 64; i++)
{
BOOL render_text = TRUE;
F32 deg = 5.625f * (F32)i;
LLVector3 inner_point;
LLVector3 outer_point;
LLVector3 text_point;
LLQuaternion rot(deg * DEG_TO_RAD, constraint_axis);
gGL.begin(LLRender::LINES);
{
inner_point = (projected_snap_axis * mRadiusMeters * SNAP_GUIDE_INNER_RADIUS * rot) + center;
F32 tick_length = 0.f;
if (i % 16 == 0)
{
tick_length = mRadiusMeters * (SNAP_GUIDE_RADIUS_1 - SNAP_GUIDE_INNER_RADIUS);
}
else if (i % 8 == 0)
{
tick_length = mRadiusMeters * (SNAP_GUIDE_RADIUS_2 - SNAP_GUIDE_INNER_RADIUS);
}
else if (i % 4 == 0)
{
tick_length = mRadiusMeters * (SNAP_GUIDE_RADIUS_3 - SNAP_GUIDE_INNER_RADIUS);
}
else if (i % 2 == 0)
{
tick_length = mRadiusMeters * (SNAP_GUIDE_RADIUS_4 - SNAP_GUIDE_INNER_RADIUS);
}
else
{
tick_length = mRadiusMeters * (SNAP_GUIDE_RADIUS_5 - SNAP_GUIDE_INNER_RADIUS);
}
if (mCamEdgeOn)
{
// don't draw ticks that are on back side of circle
F32 dot = cam_at_axis * (projected_snap_axis * rot);
if (dot > 0.f)
{
outer_point = inner_point;
render_text = FALSE;
}
else
{
if (ring_num == 0)
{
outer_point = inner_point + (constraint_axis * tick_length) * rot;
}
else
{
outer_point = inner_point - (constraint_axis * tick_length) * rot;
}
}
}
else
{
outer_point = inner_point + (projected_snap_axis * tick_length) * rot;
}
text_point = outer_point + (projected_snap_axis * mRadiusMeters * 0.1f) * rot;
gGL.vertex3fv(inner_point.mV);
gGL.vertex3fv(outer_point.mV);
}
gGL.end();
// *TODO: Translate
//RN: text rendering does own shadow pass, so only render once
if (pass == 1 && render_text && i % 16 == 0)
{
if (world_snap_axis.mV[VX])
{
if (i == 0)
{
renderTickText(text_point, mObjectSelection->isAttachment() ? std::string("Forward") : std::string("East"), LLColor4::white);
}
else if (i == 16)
{
if (constraint_axis.mV[VZ] > 0.f)
{
renderTickText(text_point, mObjectSelection->isAttachment() ? std::string("Left") : std::string("North"), LLColor4::white);
}
else
{
renderTickText(text_point, mObjectSelection->isAttachment() ? std::string("Right") : std::string("South"), LLColor4::white);
}
}
else if (i == 32)
{
renderTickText(text_point, mObjectSelection->isAttachment() ? std::string("Back") : std::string("West"), LLColor4::white);
}
else
{
if (constraint_axis.mV[VZ] > 0.f)
{
renderTickText(text_point, mObjectSelection->isAttachment() ? std::string("Right") : std::string("South"), LLColor4::white);
}
else
{
renderTickText(text_point, mObjectSelection->isAttachment() ? std::string("Left") : std::string("North"), LLColor4::white);
}
}
}
else if (world_snap_axis.mV[VY])
{
if (i == 0)
{
renderTickText(text_point, mObjectSelection->isAttachment() ? std::string("Left") : std::string("North"), LLColor4::white);
}
else if (i == 16)
{
if (constraint_axis.mV[VX] > 0.f)
{
renderTickText(text_point, std::string("Up"), LLColor4::white);
}
else
{
renderTickText(text_point, std::string("Down"), LLColor4::white);
}
}
else if (i == 32)
{
renderTickText(text_point, mObjectSelection->isAttachment() ? std::string("Right") : std::string("South"), LLColor4::white);
}
else
{
if (constraint_axis.mV[VX] > 0.f)
{
renderTickText(text_point, std::string("Down"), LLColor4::white);
}
else
{
renderTickText(text_point, std::string("Up"), LLColor4::white);
}
}
}
else if (world_snap_axis.mV[VZ])
{
if (i == 0)
{
renderTickText(text_point, std::string("Up"), LLColor4::white);
}
else if (i == 16)
{
if (constraint_axis.mV[VY] > 0.f)
{
renderTickText(text_point, mObjectSelection->isAttachment() ? std::string("Forward") : std::string("East"), LLColor4::white);
}
else
{
renderTickText(text_point, mObjectSelection->isAttachment() ? std::string("Back") : std::string("West"), LLColor4::white);
}
}
else if (i == 32)
{
renderTickText(text_point, std::string("Down"), LLColor4::white);
}
else
{
if (constraint_axis.mV[VY] > 0.f)
{
renderTickText(text_point, mObjectSelection->isAttachment() ? std::string("Back") : std::string("West"), LLColor4::white);
}
else
{
renderTickText(text_point, mObjectSelection->isAttachment() ? std::string("Forward") : std::string("East"), LLColor4::white);
}
}
}
}
gGL.color4fv(line_color.mV);
}
// now render projected object axis
if (mInSnapRegime)
{
LLVector3 object_axis;
getObjectAxisClosestToMouse(object_axis);
// project onto constraint plane
LLSelectNode* first_node = mObjectSelection->getFirstMoveableNode(TRUE);
object_axis = object_axis * first_node->getObject()->getRenderRotation();
object_axis = object_axis - (object_axis * getConstraintAxis()) * getConstraintAxis();
object_axis.normVec();
object_axis = object_axis * SNAP_GUIDE_INNER_RADIUS * mRadiusMeters + center;
LLVector3 line_start = center;
gGL.begin(LLRender::LINES);
{
gGL.vertex3fv(line_start.mV);
gGL.vertex3fv(object_axis.mV);
}
gGL.end();
// draw snap guide arrow
gGL.begin(LLRender::TRIANGLES);
{
LLVector3 arrow_dir;
LLVector3 arrow_span = (object_axis - line_start) % getConstraintAxis();
arrow_span.normVec();
arrow_dir = mCamEdgeOn ? getConstraintAxis() : object_axis - line_start;
arrow_dir.normVec();
if (ring_num == 1)
{
arrow_dir *= -1.f;
}
gGL.vertex3fv((object_axis + arrow_dir * mRadiusMeters * 0.1f).mV);
gGL.vertex3fv((object_axis + arrow_span * mRadiusMeters * 0.1f).mV);
gGL.vertex3fv((object_axis - arrow_span * mRadiusMeters * 0.1f).mV);
}
gGL.end();
{
LLGLDepthTest gls_depth(GL_TRUE);
gGL.begin(LLRender::LINES);
{
gGL.vertex3fv(line_start.mV);
gGL.vertex3fv(object_axis.mV);
}
gGL.end();
// draw snap guide arrow
gGL.begin(LLRender::TRIANGLES);
{
LLVector3 arrow_dir;
LLVector3 arrow_span = (object_axis - line_start) % getConstraintAxis();
arrow_span.normVec();
arrow_dir = mCamEdgeOn ? getConstraintAxis() : object_axis - line_start;
arrow_dir.normVec();
if (ring_num == 1)
{
arrow_dir *= -1.f;
}
gGL.vertex3fv((object_axis + arrow_dir * mRadiusMeters * 0.1f).mV);
gGL.vertex3fv((object_axis + arrow_span * mRadiusMeters * 0.1f).mV);
gGL.vertex3fv((object_axis - arrow_span * mRadiusMeters * 0.1f).mV);
}
gGL.end();
}
}
}
}
}
// Returns TRUE if center of sphere is visible. Also sets a bunch of member variables that are used later (e.g. mCenterToCam)
BOOL LLManipRotate::updateVisiblity()
{
// Don't want to recalculate the center of the selection during a drag.
// Due to packet delays, sometimes half the objects in the selection have their
// new position and half have their old one. This creates subtle errors in the
// computed center position for that frame. Unfortunately, these errors
// accumulate. The result is objects seem to "fly apart" during rotations.
// JC - 03.26.2002
if (!hasMouseCapture())
{
mRotationCenter = gAgent.getPosGlobalFromAgent( getPivotPoint() );//LLSelectMgr::getInstance()->getSelectionCenterGlobal();
}
BOOL visible = FALSE;
LLVector3 center = gAgent.getPosAgentFromGlobal( mRotationCenter );
if (mObjectSelection->getSelectType() == SELECT_TYPE_HUD)
{
mCenterToCam = LLVector3(-1.f / gAgentCamera.mHUDCurZoom, 0.f, 0.f);
mCenterToCamNorm = mCenterToCam;
mCenterToCamMag = mCenterToCamNorm.normVec();
mRadiusMeters = RADIUS_PIXELS / (F32) LLViewerCamera::getInstance()->getViewHeightInPixels();
mRadiusMeters /= gAgentCamera.mHUDCurZoom;
mCenterToProfilePlaneMag = mRadiusMeters * mRadiusMeters / mCenterToCamMag;
mCenterToProfilePlane = -mCenterToProfilePlaneMag * mCenterToCamNorm;
mCenterScreen.set((S32)((0.5f - mRotationCenter.mdV[VY]) / gAgentCamera.mHUDCurZoom * gViewerWindow->getWindowWidth()),
(S32)((mRotationCenter.mdV[VZ] + 0.5f) / gAgentCamera.mHUDCurZoom * gViewerWindow->getWindowHeight()));
visible = TRUE;
}
else
{
visible = LLViewerCamera::getInstance()->projectPosAgentToScreen(center, mCenterScreen );
if( visible )
{
mCenterToCam = gAgentCamera.getCameraPositionAgent() - center;
mCenterToCamNorm = mCenterToCam;
mCenterToCamMag = mCenterToCamNorm.normVec();
LLVector3 cameraAtAxis = LLViewerCamera::getInstance()->getAtAxis();
cameraAtAxis.normVec();
F32 z_dist = -1.f * (mCenterToCam * cameraAtAxis);
// Don't drag manip if object too far away
if (gSavedSettings.getBOOL("LimitSelectDistance"))
{
F32 max_select_distance = gSavedSettings.getF32("MaxSelectDistance");
if (dist_vec(gAgent.getPositionAgent(), center) > max_select_distance)
{
visible = FALSE;
}
}
if (mCenterToCamMag > 0.001f)
{
F32 fraction_of_fov = RADIUS_PIXELS / (F32) LLViewerCamera::getInstance()->getViewHeightInPixels();
F32 apparent_angle = fraction_of_fov * LLViewerCamera::getInstance()->getView(); // radians
mRadiusMeters = z_dist * tan(apparent_angle);
mCenterToProfilePlaneMag = mRadiusMeters * mRadiusMeters / mCenterToCamMag;
mCenterToProfilePlane = -mCenterToProfilePlaneMag * mCenterToCamNorm;
}
else
{
visible = FALSE;
}
}
}
mCamEdgeOn = FALSE;
F32 axis_onto_cam = mManipPart >= LL_ROT_X ? llabs( getConstraintAxis() * mCenterToCamNorm ) : 0.f;
if( axis_onto_cam < AXIS_ONTO_CAM_TOLERANCE )
{
mCamEdgeOn = TRUE;
}
return visible;
}
LLQuaternion LLManipRotate::dragUnconstrained( S32 x, S32 y )
{
LLVector3 cam = gAgentCamera.getCameraPositionAgent();
LLVector3 center = gAgent.getPosAgentFromGlobal( mRotationCenter );
mMouseCur = intersectMouseWithSphere( x, y, center, mRadiusMeters);
F32 delta_x = (F32)(mCenterScreen.mX - x);
F32 delta_y = (F32)(mCenterScreen.mY - y);
F32 dist_from_sphere_center = sqrt(delta_x * delta_x + delta_y * delta_y);
LLVector3 axis = mMouseDown % mMouseCur;
axis.normVec();
F32 angle = acos(mMouseDown * mMouseCur);
LLQuaternion sphere_rot( angle, axis );
if (is_approx_zero(1.f - mMouseDown * mMouseCur))
{
return LLQuaternion::DEFAULT;
}
else if (dist_from_sphere_center < RADIUS_PIXELS)
{
return sphere_rot;
}
else
{
LLVector3 intersection;
getMousePointOnPlaneAgent( intersection, x, y, center + mCenterToProfilePlane, mCenterToCamNorm );
// amount dragging in sphere from center to periphery would rotate object
F32 in_sphere_angle = F_PI_BY_TWO;
F32 dist_to_tangent_point = mRadiusMeters;
if( !is_approx_zero( mCenterToProfilePlaneMag ) )
{
dist_to_tangent_point = sqrt( mRadiusMeters * mRadiusMeters - mCenterToProfilePlaneMag * mCenterToProfilePlaneMag );
in_sphere_angle = atan2( dist_to_tangent_point, mCenterToProfilePlaneMag );
}
LLVector3 profile_center_to_intersection = intersection - (center + mCenterToProfilePlane);
F32 dist_to_intersection = profile_center_to_intersection.normVec();
F32 angle = (-1.f + dist_to_intersection / dist_to_tangent_point) * in_sphere_angle;
LLVector3 axis;
if (mObjectSelection->getSelectType() == SELECT_TYPE_HUD)
{
axis = LLVector3(-1.f, 0.f, 0.f) % profile_center_to_intersection;
}
else
{
axis = (cam - center) % profile_center_to_intersection;
axis.normVec();
}
return sphere_rot * LLQuaternion( angle, axis );
}
}
LLVector3 LLManipRotate::getConstraintAxis()
{
LLVector3 axis;
if( LL_ROT_ROLL == mManipPart )
{
axis = mCenterToCamNorm;
}
else
{
S32 axis_dir = mManipPart - LL_ROT_X;
if ((axis_dir >= 0) && (axis_dir < 3))
{
axis.mV[axis_dir] = 1.f;
}
else
{
#ifndef LL_RELEASE_FOR_DOWNLOAD
llerrs << "Got bogus hit part in LLManipRotate::getConstraintAxis():" << mManipPart << llendl;
#else
llwarns << "Got bogus hit part in LLManipRotate::getConstraintAxis():" << mManipPart << llendl;
#endif
axis.mV[0] = 1.f;
}
LLVector3 grid_origin;
LLVector3 grid_scale;
LLQuaternion grid_rotation;
LLSelectMgr::getInstance()->getGrid(grid_origin, grid_rotation, grid_scale);
LLSelectNode* first_node = mObjectSelection->getFirstMoveableNode(TRUE);
if (first_node)
{
// *FIX: get agent local attachment grid working
// Put rotation into frame of first selected root object
axis = axis * grid_rotation;
}
}
return axis;
}
LLQuaternion LLManipRotate::dragConstrained( S32 x, S32 y )
{
LLSelectNode* first_object_node = mObjectSelection->getFirstMoveableNode(TRUE);
LLVector3 constraint_axis = getConstraintAxis();
LLVector3 center = gAgent.getPosAgentFromGlobal( mRotationCenter );
F32 angle = 0.f;
// build snap axes
LLVector3 grid_origin;
LLVector3 grid_scale;
LLQuaternion grid_rotation;
LLSelectMgr::getInstance()->getGrid(grid_origin, grid_rotation, grid_scale);
LLVector3 axis1;
LLVector3 axis2;
LLVector3 test_axis = constraint_axis;
if (mObjectSelection->getSelectType() == SELECT_TYPE_ATTACHMENT && gAgent.getAvatarObject())
{
test_axis = test_axis * ~grid_rotation;
}
else if (LLSelectMgr::getInstance()->getGridMode() == GRID_MODE_REF_OBJECT)
{
test_axis = test_axis * ~grid_rotation;
}
test_axis.abs();
// find closest global axis to constraint axis;
if (test_axis.mV[VX] > test_axis.mV[VY] && test_axis.mV[VX] > test_axis.mV[VZ])
{
axis1 = LLVector3::y_axis;
}
else if (test_axis.mV[VY] > test_axis.mV[VZ])
{
axis1 = LLVector3::z_axis;
}
else
{
axis1 = LLVector3::x_axis;
}
if (mObjectSelection->getSelectType() == SELECT_TYPE_ATTACHMENT && gAgent.getAvatarObject())
{
axis1 = axis1 * grid_rotation;
}
else if (LLSelectMgr::getInstance()->getGridMode() == GRID_MODE_REF_OBJECT)
{
axis1 = axis1 * grid_rotation;
}
//project axis onto constraint plane
axis1 -= (axis1 * constraint_axis) * constraint_axis;
axis1.normVec();
// calculate third and final axis
axis2 = constraint_axis % axis1;
//F32 axis_onto_cam = llabs( constraint_axis * mCenterToCamNorm );
if( mCamEdgeOn )
{
// We're looking at the ring edge-on.
LLVector3 snap_plane_center = (center + (constraint_axis * mRadiusMeters * 0.5f));
LLVector3 cam_to_snap_plane;
if (mObjectSelection->getSelectType() == SELECT_TYPE_HUD)
{
cam_to_snap_plane.setVec(1.f, 0.f, 0.f);
}
else
{
cam_to_snap_plane = snap_plane_center - gAgentCamera.getCameraPositionAgent();
cam_to_snap_plane.normVec();
}
LLVector3 projected_mouse;
BOOL hit = getMousePointOnPlaneAgent(projected_mouse, x, y, snap_plane_center, constraint_axis);
projected_mouse -= snap_plane_center;
S32 snap_plane = 0;
F32 dot = cam_to_snap_plane * constraint_axis;
if (llabs(dot) < 0.01f)
{
// looking at ring edge on, project onto view plane and check if mouse is past ring
getMousePointOnPlaneAgent(projected_mouse, x, y, snap_plane_center, cam_to_snap_plane);
projected_mouse -= snap_plane_center;
dot = projected_mouse * constraint_axis;
if (projected_mouse * constraint_axis > 0)
{
snap_plane = 1;
}
projected_mouse -= dot * constraint_axis;
}
else if (dot > 0.f)
{
// look for mouse position outside and in front of snap circle
if (hit && projected_mouse.magVec() > SNAP_GUIDE_INNER_RADIUS * mRadiusMeters && projected_mouse * cam_to_snap_plane < 0.f)
{
snap_plane = 1;
}
}
else
{
// look for mouse position inside or in back of snap circle
if (projected_mouse.magVec() < SNAP_GUIDE_INNER_RADIUS * mRadiusMeters || projected_mouse * cam_to_snap_plane > 0.f || !hit)
{
snap_plane = 1;
}
}
if (snap_plane == 0)
{
// try other plane
snap_plane_center = (center - (constraint_axis * mRadiusMeters * 0.5f));
if (mObjectSelection->getSelectType() == SELECT_TYPE_HUD)
{
cam_to_snap_plane.setVec(1.f, 0.f, 0.f);
}
else
{
cam_to_snap_plane = snap_plane_center - gAgentCamera.getCameraPositionAgent();
cam_to_snap_plane.normVec();
}
hit = getMousePointOnPlaneAgent(projected_mouse, x, y, snap_plane_center, constraint_axis);
projected_mouse -= snap_plane_center;
dot = cam_to_snap_plane * constraint_axis;
if (llabs(dot) < 0.01f)
{
// looking at ring edge on, project onto view plane and check if mouse is past ring
getMousePointOnPlaneAgent(projected_mouse, x, y, snap_plane_center, cam_to_snap_plane);
projected_mouse -= snap_plane_center;
dot = projected_mouse * constraint_axis;
if (projected_mouse * constraint_axis < 0)
{
snap_plane = 2;
}
projected_mouse -= dot * constraint_axis;
}
else if (dot < 0.f)
{
// look for mouse position outside and in front of snap circle
if (hit && projected_mouse.magVec() > SNAP_GUIDE_INNER_RADIUS * mRadiusMeters && projected_mouse * cam_to_snap_plane < 0.f)
{
snap_plane = 2;
}
}
else
{
// look for mouse position inside or in back of snap circle
if (projected_mouse.magVec() < SNAP_GUIDE_INNER_RADIUS * mRadiusMeters || projected_mouse * cam_to_snap_plane > 0.f || !hit)
{
snap_plane = 2;
}
}
}
if (snap_plane > 0)
{
LLVector3 cam_at_axis;
if (mObjectSelection->getSelectType() == SELECT_TYPE_HUD)
{
cam_at_axis.setVec(1.f, 0.f, 0.f);
}
else
{
cam_at_axis = snap_plane_center - gAgentCamera.getCameraPositionAgent();
cam_at_axis.normVec();
}
// first, project mouse onto screen plane at point tangent to rotation radius.
getMousePointOnPlaneAgent(projected_mouse, x, y, snap_plane_center, cam_at_axis);
// project that point onto rotation plane
projected_mouse -= snap_plane_center;
projected_mouse -= projected_vec(projected_mouse, constraint_axis);
F32 mouse_lateral_dist = llmin(SNAP_GUIDE_INNER_RADIUS * mRadiusMeters, projected_mouse.magVec());
F32 mouse_depth = SNAP_GUIDE_INNER_RADIUS * mRadiusMeters;
if (llabs(mouse_lateral_dist) > 0.01f)
{
mouse_depth = sqrtf((SNAP_GUIDE_INNER_RADIUS * mRadiusMeters) * (SNAP_GUIDE_INNER_RADIUS * mRadiusMeters) -
(mouse_lateral_dist * mouse_lateral_dist));
}
LLVector3 projected_camera_at = cam_at_axis - projected_vec(cam_at_axis, constraint_axis);
projected_mouse -= mouse_depth * projected_camera_at;
if (!mInSnapRegime)
{
mSmoothRotate = TRUE;
}
mInSnapRegime = TRUE;
// 0 to 360 deg
F32 mouse_angle = fmodf(atan2(projected_mouse * axis1, projected_mouse * axis2) * RAD_TO_DEG + 360.f, 360.f);
F32 relative_mouse_angle = fmodf(mouse_angle + (SNAP_ANGLE_DETENTE / 2), SNAP_ANGLE_INCREMENT);
//fmodf(llround(mouse_angle * RAD_TO_DEG, 7.5f) + 360.f, 360.f);
LLVector3 object_axis;
getObjectAxisClosestToMouse(object_axis);
object_axis = object_axis * first_object_node->mSavedRotation;
// project onto constraint plane
object_axis = object_axis - (object_axis * getConstraintAxis()) * getConstraintAxis();
object_axis.normVec();
if (relative_mouse_angle < SNAP_ANGLE_DETENTE)
{
F32 quantized_mouse_angle = mouse_angle - (relative_mouse_angle - (SNAP_ANGLE_DETENTE * 0.5f));
angle = (quantized_mouse_angle * DEG_TO_RAD) - atan2(object_axis * axis1, object_axis * axis2);
}
else
{
angle = (mouse_angle * DEG_TO_RAD) - atan2(object_axis * axis1, object_axis * axis2);
}
return LLQuaternion( -angle, constraint_axis );
}
else
{
if (mInSnapRegime)
{
mSmoothRotate = TRUE;
}
mInSnapRegime = FALSE;
LLVector3 up_from_axis = mCenterToCamNorm % constraint_axis;
up_from_axis.normVec();
LLVector3 cur_intersection;
getMousePointOnPlaneAgent(cur_intersection, x, y, center, mCenterToCam);
cur_intersection -= center;
mMouseCur = projected_vec(cur_intersection, up_from_axis);
F32 mouse_depth = SNAP_GUIDE_INNER_RADIUS * mRadiusMeters;
F32 mouse_dist_sqrd = mMouseCur.magVecSquared();
if (mouse_dist_sqrd > 0.0001f)
{
mouse_depth = sqrtf((SNAP_GUIDE_INNER_RADIUS * mRadiusMeters) * (SNAP_GUIDE_INNER_RADIUS * mRadiusMeters) -
mouse_dist_sqrd);
}
LLVector3 projected_center_to_cam = mCenterToCamNorm - projected_vec(mCenterToCamNorm, constraint_axis);
mMouseCur += mouse_depth * projected_center_to_cam;
F32 dist = (cur_intersection * up_from_axis) - (mMouseDown * up_from_axis);
angle = dist / (SNAP_GUIDE_INNER_RADIUS * mRadiusMeters) * -F_PI_BY_TWO;
}
}
else
{
LLVector3 projected_mouse;
getMousePointOnPlaneAgent(projected_mouse, x, y, center, constraint_axis);
projected_mouse -= center;
mMouseCur = projected_mouse;
mMouseCur.normVec();
if (!first_object_node)
{
return LLQuaternion::DEFAULT;
}
if (gSavedSettings.getBOOL("SnapEnabled") && projected_mouse.magVec() > SNAP_GUIDE_INNER_RADIUS * mRadiusMeters)
{
if (!mInSnapRegime)
{
mSmoothRotate = TRUE;
}
mInSnapRegime = TRUE;
// 0 to 360 deg
F32 mouse_angle = fmodf(atan2(projected_mouse * axis1, projected_mouse * axis2) * RAD_TO_DEG + 360.f, 360.f);
F32 relative_mouse_angle = fmodf(mouse_angle + (SNAP_ANGLE_DETENTE / 2), SNAP_ANGLE_INCREMENT);
//fmodf(llround(mouse_angle * RAD_TO_DEG, 7.5f) + 360.f, 360.f);
LLVector3 object_axis;
getObjectAxisClosestToMouse(object_axis);
object_axis = object_axis * first_object_node->mSavedRotation;
// project onto constraint plane
object_axis = object_axis - (object_axis * getConstraintAxis()) * getConstraintAxis();
object_axis.normVec();
if (relative_mouse_angle < SNAP_ANGLE_DETENTE)
{
F32 quantized_mouse_angle = mouse_angle - (relative_mouse_angle - (SNAP_ANGLE_DETENTE * 0.5f));
angle = (quantized_mouse_angle * DEG_TO_RAD) - atan2(object_axis * axis1, object_axis * axis2);
}
else
{
angle = (mouse_angle * DEG_TO_RAD) - atan2(object_axis * axis1, object_axis * axis2);
}
return LLQuaternion( -angle, constraint_axis );
}
else
{
if (mInSnapRegime)
{
mSmoothRotate = TRUE;
}
mInSnapRegime = FALSE;
}
angle = acos(mMouseCur * mMouseDown);
F32 dir = (mMouseDown % mMouseCur) * constraint_axis; // cross product
if( dir < 0.f )
{
angle *= -1.f;
}
}
F32 rot_step = gSavedSettings.getF32("RotationStep");
F32 step_size = DEG_TO_RAD * rot_step;
angle -= fmod(angle, step_size);
return LLQuaternion( angle, constraint_axis );
}
LLVector3 LLManipRotate::intersectMouseWithSphere( S32 x, S32 y, const LLVector3& sphere_center, F32 sphere_radius)
{
LLVector3 ray_pt;
LLVector3 ray_dir;
mouseToRay( x, y, &ray_pt, &ray_dir);
return intersectRayWithSphere( ray_pt, ray_dir, sphere_center, sphere_radius );
}
LLVector3 LLManipRotate::intersectRayWithSphere( const LLVector3& ray_pt, const LLVector3& ray_dir, const LLVector3& sphere_center, F32 sphere_radius)
{
LLVector3 ray_pt_to_center = sphere_center - ray_pt;
F32 center_distance = ray_pt_to_center.normVec();
F32 dot = ray_dir * ray_pt_to_center;
if (dot == 0.f)
{
return LLVector3::zero;
}
// point which ray hits plane centered on sphere origin, facing ray origin
LLVector3 intersection_sphere_plane = ray_pt + (ray_dir * center_distance / dot);
// vector from sphere origin to the point, normalized to sphere radius
LLVector3 sphere_center_to_intersection = (intersection_sphere_plane - sphere_center) / sphere_radius;
F32 dist_squared = sphere_center_to_intersection.magVecSquared();
LLVector3 result;
if (dist_squared > 1.f)
{
result = sphere_center_to_intersection;
result.normVec();
}
else
{
result = sphere_center_to_intersection - ray_dir * sqrt(1.f - dist_squared);
}
return result;
}
// Utility function. Should probably be moved to another class.
//static
void LLManipRotate::mouseToRay( S32 x, S32 y, LLVector3* ray_pt, LLVector3* ray_dir )
{
if (LLSelectMgr::getInstance()->getSelection()->getSelectType() == SELECT_TYPE_HUD)
{
F32 mouse_x = (((F32)x / gViewerWindow->getWindowWidth()) - 0.5f) / gAgentCamera.mHUDCurZoom;
F32 mouse_y = ((((F32)y) / gViewerWindow->getWindowHeight()) - 0.5f) / gAgentCamera.mHUDCurZoom;
*ray_pt = LLVector3(-1.f, -mouse_x, mouse_y);
*ray_dir = LLVector3(1.f, 0.f, 0.f);
}
else
{
*ray_pt = gAgentCamera.getCameraPositionAgent();
LLViewerCamera::getInstance()->projectScreenToPosAgent(x, y, ray_dir);
*ray_dir -= *ray_pt;
ray_dir->normVec();
}
}
void LLManipRotate::highlightManipulators( S32 x, S32 y )
{
mHighlightedPart = LL_NO_PART;
//LLBBox bbox = LLSelectMgr::getInstance()->getBBoxOfSelection();
LLViewerObject *first_object = mObjectSelection->getFirstMoveableObject(TRUE);
if (!first_object)
{
return;
}
LLQuaternion object_rot = first_object->getRenderRotation();
LLVector3 rotation_center = gAgent.getPosAgentFromGlobal(mRotationCenter);
LLVector3 mouse_dir_x;
LLVector3 mouse_dir_y;
LLVector3 mouse_dir_z;
LLVector3 intersection_roll;
LLVector3 grid_origin;
LLVector3 grid_scale;
LLQuaternion grid_rotation;
LLSelectMgr::getInstance()->getGrid(grid_origin, grid_rotation, grid_scale);
LLVector3 rot_x_axis = LLVector3::x_axis * grid_rotation;
LLVector3 rot_y_axis = LLVector3::y_axis * grid_rotation;
LLVector3 rot_z_axis = LLVector3::z_axis * grid_rotation;
F32 proj_rot_x_axis = llabs(rot_x_axis * mCenterToCamNorm);
F32 proj_rot_y_axis = llabs(rot_y_axis * mCenterToCamNorm);
F32 proj_rot_z_axis = llabs(rot_z_axis * mCenterToCamNorm);
F32 min_select_distance = 0.f;
F32 cur_select_distance = 0.f;
// test x
getMousePointOnPlaneAgent(mouse_dir_x, x, y, rotation_center, rot_x_axis);
mouse_dir_x -= rotation_center;
// push intersection point out when working at obtuse angle to make ring easier to hit
mouse_dir_x *= 1.f + (1.f - llabs(rot_x_axis * mCenterToCamNorm)) * 0.1f;
// test y
getMousePointOnPlaneAgent(mouse_dir_y, x, y, rotation_center, rot_y_axis);
mouse_dir_y -= rotation_center;
mouse_dir_y *= 1.f + (1.f - llabs(rot_y_axis * mCenterToCamNorm)) * 0.1f;
// test z
getMousePointOnPlaneAgent(mouse_dir_z, x, y, rotation_center, rot_z_axis);
mouse_dir_z -= rotation_center;
mouse_dir_z *= 1.f + (1.f - llabs(rot_z_axis * mCenterToCamNorm)) * 0.1f;
// test roll
getMousePointOnPlaneAgent(intersection_roll, x, y, rotation_center, mCenterToCamNorm);
intersection_roll -= rotation_center;
F32 dist_x = mouse_dir_x.normVec();
F32 dist_y = mouse_dir_y.normVec();
F32 dist_z = mouse_dir_z.normVec();
F32 distance_threshold = (MAX_MANIP_SELECT_DISTANCE * mRadiusMeters) / gViewerWindow->getWindowHeight();
if (llabs(dist_x - mRadiusMeters) * llmax(0.05f, proj_rot_x_axis) < distance_threshold)
{
// selected x
cur_select_distance = dist_x * mouse_dir_x * mCenterToCamNorm;
if (cur_select_distance >= -0.05f && (min_select_distance == 0.f || cur_select_distance > min_select_distance))
{
min_select_distance = cur_select_distance;
mHighlightedPart = LL_ROT_X;
}
}
if (llabs(dist_y - mRadiusMeters) * llmax(0.05f, proj_rot_y_axis) < distance_threshold)
{
// selected y
cur_select_distance = dist_y * mouse_dir_y * mCenterToCamNorm;
if (cur_select_distance >= -0.05f && (min_select_distance == 0.f || cur_select_distance > min_select_distance))
{
min_select_distance = cur_select_distance;
mHighlightedPart = LL_ROT_Y;
}
}
if (llabs(dist_z - mRadiusMeters) * llmax(0.05f, proj_rot_z_axis) < distance_threshold)
{
// selected z
cur_select_distance = dist_z * mouse_dir_z * mCenterToCamNorm;
if (cur_select_distance >= -0.05f && (min_select_distance == 0.f || cur_select_distance > min_select_distance))
{
min_select_distance = cur_select_distance;
mHighlightedPart = LL_ROT_Z;
}
}
// test for edge-on intersections
if (proj_rot_x_axis < 0.05f)
{
if ((proj_rot_y_axis > 0.05f && (dist_y * llabs(mouse_dir_y * rot_x_axis) < distance_threshold) && dist_y < mRadiusMeters) ||
(proj_rot_z_axis > 0.05f && (dist_z * llabs(mouse_dir_z * rot_x_axis) < distance_threshold) && dist_z < mRadiusMeters))
{
mHighlightedPart = LL_ROT_X;
}
}
if (proj_rot_y_axis < 0.05f)
{
if ((proj_rot_x_axis > 0.05f && (dist_x * llabs(mouse_dir_x * rot_y_axis) < distance_threshold) && dist_x < mRadiusMeters) ||
(proj_rot_z_axis > 0.05f && (dist_z * llabs(mouse_dir_z * rot_y_axis) < distance_threshold) && dist_z < mRadiusMeters))
{
mHighlightedPart = LL_ROT_Y;
}
}
if (proj_rot_z_axis < 0.05f)
{
if ((proj_rot_x_axis > 0.05f && (dist_x * llabs(mouse_dir_x * rot_z_axis) < distance_threshold) && dist_x < mRadiusMeters) ||
(proj_rot_y_axis > 0.05f && (dist_y * llabs(mouse_dir_y * rot_z_axis) < distance_threshold) && dist_y < mRadiusMeters))
{
mHighlightedPart = LL_ROT_Z;
}
}
// test for roll
if (mHighlightedPart == LL_NO_PART)
{
F32 roll_distance = intersection_roll.magVec();
F32 width_meters = WIDTH_PIXELS * mRadiusMeters / RADIUS_PIXELS;
// use larger distance threshold for roll as it is checked only if something else wasn't highlighted
if (llabs(roll_distance - (mRadiusMeters + (width_meters * 2.f))) < distance_threshold * 2.f)
{
mHighlightedPart = LL_ROT_ROLL;
}
else if (roll_distance < mRadiusMeters)
{
mHighlightedPart = LL_ROT_GENERAL;
}
}
}
S32 LLManipRotate::getObjectAxisClosestToMouse(LLVector3& object_axis)
{
LLSelectNode* first_object_node = mObjectSelection->getFirstMoveableNode(TRUE);
if (!first_object_node)
{
object_axis.clearVec();
return -1;
}
LLQuaternion obj_rotation = first_object_node->mSavedRotation;
LLVector3 mouse_down_object = mMouseDown * ~obj_rotation;
LLVector3 mouse_down_abs = mouse_down_object;
mouse_down_abs.abs();
S32 axis_index = 0;
if (mouse_down_abs.mV[VX] > mouse_down_abs.mV[VY] && mouse_down_abs.mV[VX] > mouse_down_abs.mV[VZ])
{
if (mouse_down_object.mV[VX] > 0.f)
{
object_axis = LLVector3::x_axis;
}
else
{
object_axis = LLVector3::x_axis_neg;
}
axis_index = VX;
}
else if (mouse_down_abs.mV[VY] > mouse_down_abs.mV[VZ])
{
if (mouse_down_object.mV[VY] > 0.f)
{
object_axis = LLVector3::y_axis;
}
else
{
object_axis = LLVector3::y_axis_neg;
}
axis_index = VY;
}
else
{
if (mouse_down_object.mV[VZ] > 0.f)
{
object_axis = LLVector3::z_axis;
}
else
{
object_axis = LLVector3::z_axis_neg;
}
axis_index = VZ;
}
return axis_index;
}
//virtual
BOOL LLManipRotate::canAffectSelection()
{
BOOL can_rotate = mObjectSelection->getObjectCount() != 0;
if (can_rotate)
{
struct f : public LLSelectedObjectFunctor
{
virtual bool apply(LLViewerObject* objectp)
{
return objectp->permMove() && (objectp->permModify() || !gSavedSettings.getBOOL("EditLinkedParts"));
}
} func;
can_rotate = mObjectSelection->applyToObjects(&func);
}
return can_rotate;
}
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