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* improve rotation manipulations consistency in camera

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This commit is contained in:
Garux 2018-10-31 11:23:08 +03:00
parent c49be81280
commit 29998d8e8f
1 changed files with 31 additions and 92 deletions
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121
radiant/selection.cpp
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@ -125,10 +125,10 @@ void ray_intersect_ray( const Ray& ray, const Ray& other, Vector3& intersection
const Vector3 g_origin( 0, 0, 0 ); const Vector3 g_origin( 0, 0, 0 );
const float g_radius = 64; const float g_radius = 64;
void point_on_sphere( Vector3& point, const Matrix4& device2object, const float x, const float y, const Vector3& origin = g_origin, const float radius = g_radius ){ void point_on_sphere( Vector3& point, const Matrix4& device2object, const float x, const float y, const float radius = g_radius ){
Ray ray; Ray ray;
ray_for_device_point( ray, device2object, x, y ); ray_for_device_point( ray, device2object, x, y );
sphere_intersect_ray( origin, radius, ray, point ); sphere_intersect_ray( g_origin, radius, ray, point );
} }
void point_on_axis( Vector3& point, const Vector3& axis, const Matrix4& device2object, const float x, const float y ){ void point_on_axis( Vector3& point, const Vector3& axis, const Matrix4& device2object, const float x, const float y ){
@ -240,23 +240,13 @@ void Construct( const Matrix4& device2manip, const float x, const float y, const
void Transform( const Matrix4& manip2object, const Matrix4& device2manip, const float x, const float y, const bool snap, const bool snapbbox, const bool alt ){ void Transform( const Matrix4& manip2object, const Matrix4& device2manip, const float x, const float y, const bool snap, const bool snapbbox, const bool alt ){
Vector3 current; Vector3 current;
point_on_sphere( current, device2manip, x, y ); point_on_sphere( current, device2manip, x, y );
if( snap ){
Vector3 axis( 0, 0, 0 );
for( std::size_t i = 0; i < 3; ++i ){
if( current[i] == 0.f ){
axis[i] = 1.f;
break;
}
}
if( vector3_length_squared( axis ) != 0 ){
constrain_to_axis( current, axis );
m_rotatable.rotate( quaternion_for_axisangle( axis, float_snapped( angle_for_axis( m_start, current, axis ), static_cast<float>( c_pi / 12.0 ) ) ) );
return;
}
}
vector3_normalise( current ); vector3_normalise( current );
if( snap )
for( std::size_t i = 0; i < 3; ++i )
if( current[i] == 0.f )
return m_rotatable.rotate( quaternion_for_axisangle( g_vector3_axes[i], float_snapped( angle_for_axis( m_start, current, g_vector3_axes[i] ), static_cast<float>( c_pi / 12.0 ) ) ) );
m_rotatable.rotate( quaternion_for_unit_vectors( m_start, current ) ); m_rotatable.rotate( quaternion_for_unit_vectors( m_start, current ) );
// m_rotatable.rotate( quaternion_for_sphere_vectors( m_start, current ) ); //wrong math, 2x more sensitive // m_rotatable.rotate( quaternion_for_sphere_vectors( m_start, current ) ); //wrong math, 2x more sensitive
} }
@ -266,53 +256,41 @@ class RotateAxis : public Manipulatable
{ {
Vector3 m_axis; Vector3 m_axis;
Vector3 m_start; Vector3 m_start;
float m_radius;
bool m_plane_way;
Plane3 m_plane;
Vector3 m_origin;
Rotatable& m_rotatable; Rotatable& m_rotatable;
public: public:
RotateAxis( Rotatable& rotatable ) RotateAxis( Rotatable& rotatable )
: m_rotatable( rotatable ){ : m_radius( g_radius ), m_rotatable( rotatable ){
} }
void Construct( const Matrix4& device2manip, const float x, const float y, const AABB& bounds, const Vector3& transform_origin ){ void Construct( const Matrix4& device2manip, const float x, const float y, const AABB& bounds, const Vector3& transform_origin ){
point_on_sphere( m_start, device2manip, x, y ); const float dot = vector3_dot( m_axis, m_view->fill()? vector3_normalised( m_view->getViewer() - transform_origin ) : m_view->getViewDir() );
constrain_to_axis( m_start, m_axis ); m_plane_way = fabs( dot ) > 0.1;
}
/// \brief Converts current position to a normalised vector orthogonal to axis.
void Transform( const Matrix4& manip2object, const Matrix4& device2manip, const float x, const float y, const bool snap, const bool snapbbox, const bool alt ){
Vector3 current;
point_on_sphere( current, device2manip, x, y );
constrain_to_axis( current, m_axis );
if( snap ){ if( m_plane_way ){
m_rotatable.rotate( quaternion_for_axisangle( m_axis, float_snapped( angle_for_axis( m_start, current, m_axis ), static_cast<float>( c_pi / 12.0 ) ) ) ); m_origin = transform_origin;
m_plane = Plane3( m_axis, vector3_dot( m_axis, m_origin ) );
m_start = point_on_plane( m_plane, m_view->GetViewMatrix(), x, y ) - m_origin;
vector3_normalise( m_start );
} }
else{ else{
m_rotatable.rotate( quaternion_for_axisangle( m_axis, angle_for_axis( m_start, current, m_axis ) ) ); point_on_sphere( m_start, device2manip, x, y, m_radius );
}
}
void SetAxis( const Vector3& axis ){
m_axis = axis;
}
};
class RotateAxis_radiused : public Manipulatable
{
Vector3 m_axis;
Vector3 m_start;
float m_radius;
Rotatable& m_rotatable;
public:
RotateAxis_radiused( Rotatable& rotatable )
: m_rotatable( rotatable ){
}
void Construct( const Matrix4& device2manip, const float x, const float y, const AABB& bounds, const Vector3& transform_origin ){
point_on_sphere( m_start, device2manip, x, y, g_origin, m_radius );
constrain_to_axis( m_start, m_axis ); constrain_to_axis( m_start, m_axis );
}
} }
/// \brief Converts current position to a normalised vector orthogonal to axis. /// \brief Converts current position to a normalised vector orthogonal to axis.
void Transform( const Matrix4& manip2object, const Matrix4& device2manip, const float x, const float y, const bool snap, const bool snapbbox, const bool alt ){ void Transform( const Matrix4& manip2object, const Matrix4& device2manip, const float x, const float y, const bool snap, const bool snapbbox, const bool alt ){
Vector3 current; Vector3 current;
point_on_sphere( current, device2manip, x, y, g_origin, m_radius ); if( m_plane_way ){
current = point_on_plane( m_plane, m_view->GetViewMatrix(), x, y ) - m_origin;
vector3_normalise( current );
}
else{
point_on_sphere( current, device2manip, x, y, m_radius );
constrain_to_axis( current, m_axis ); constrain_to_axis( current, m_axis );
}
if( snap ){ if( snap ){
m_rotatable.rotate( quaternion_for_axisangle( m_axis, float_snapped( angle_for_axis( m_start, current, m_axis ), static_cast<float>( c_pi / 12.0 ) ) ) ); m_rotatable.rotate( quaternion_for_axisangle( m_axis, float_snapped( angle_for_axis( m_start, current, m_axis ), static_cast<float>( c_pi / 12.0 ) ) ) );
@ -329,47 +307,8 @@ void SetRadius( const float radius ){
m_radius = radius; m_radius = radius;
} }
}; };
#if 0
class RotateAxis_centered : public Manipulatable
{
Vector3 m_axis;
Vector3 m_start;
Vector3 m_sphere_origin;
Rotatable& m_rotatable;
public:
RotateAxis_centered( Rotatable& rotatable )
: m_rotatable( rotatable ){
}
void Construct( const Matrix4& device2manip, const float x, const float y, const AABB& bounds, const Vector3& transform_origin ){
//point_for_device_point( m_sphere_origin, device2manip, x, y, 0 );
m_sphere_origin = vector4_to_vector3( matrix4_transformed_vector4( device2manip, Vector4( x, y, 0, 1 ) ) );
point_on_sphere( m_start, device2manip, x, y, m_sphere_origin );
m_start -= m_sphere_origin;
globalOutputStream() << m_sphere_origin << "\n";
constrain_to_axis( m_start, m_axis );
}
/// \brief Converts current position to a normalised vector orthogonal to axis.
void Transform( const Matrix4& manip2object, const Matrix4& device2manip, const float x, const float y, const bool snap, const bool snapbbox, const bool alt ){
Vector3 current;
point_on_sphere( current, device2manip, x, y, m_sphere_origin );
current -= m_sphere_origin;
globalOutputStream() << current << "\n";
constrain_to_axis( current, m_axis );
globalOutputStream() << current << "\n";
if( snap ){
m_rotatable.rotate( quaternion_for_axisangle( m_axis, float_snapped( angle_for_axis( m_start, current, m_axis ), static_cast<float>( c_pi / 12.0 ) ) ) );
}
else{
m_rotatable.rotate( quaternion_for_axisangle( m_axis, angle_for_axis( m_start, current, m_axis ) ) );
}
}
void SetAxis( const Vector3& axis ){
m_axis = axis;
}
};
#endif
/// \brief snaps changed axes of \p move so that \p bounds stick to closest grid lines. /// \brief snaps changed axes of \p move so that \p bounds stick to closest grid lines.
void aabb_snap_translation( Vector3& move, const AABB& bounds ){ void aabb_snap_translation( Vector3& move, const AABB& bounds ){
const Vector3 maxs( bounds.origin + bounds.extents ); const Vector3 maxs( bounds.origin + bounds.extents );
@ -2205,7 +2144,7 @@ class SkewManipulator : public Manipulator
TranslateFreeXY_Z m_translateFreeXY_Z; TranslateFreeXY_Z m_translateFreeXY_Z;
ScaleAxis m_scaleAxis; ScaleAxis m_scaleAxis;
ScaleFree m_scaleFree; ScaleFree m_scaleFree;
RotateAxis_radiused m_rotateAxis; RotateAxis m_rotateAxis;
AABB m_bounds_draw; AABB m_bounds_draw;
const AABB& m_bounds; const AABB& m_bounds;
Matrix4& m_pivot2world; Matrix4& m_pivot2world;