diff options
Diffstat (limited to 'modules/bullet')
| -rw-r--r-- | modules/bullet/rigid_body_bullet.h | 2 | ||||
| -rw-r--r-- | modules/bullet/space_bullet.cpp | 25 |
2 files changed, 26 insertions, 1 deletions
diff --git a/modules/bullet/rigid_body_bullet.h b/modules/bullet/rigid_body_bullet.h index 5e102d8b05..01ac1e4836 100644 --- a/modules/bullet/rigid_body_bullet.h +++ b/modules/bullet/rigid_body_bullet.h @@ -301,7 +301,7 @@ public: void reload_axis_lock(); /// Doc: - /// https://web.archive.org/web/20180404091446/http://www.bulletphysics.org/mediawiki-1.5.8/index.php/Anti_tunneling_by_Motion_Clamping + /// https://web.archive.org/web/20180404091446/https://www.bulletphysics.org/mediawiki-1.5.8/index.php/Anti_tunneling_by_Motion_Clamping void set_continuous_collision_detection(bool p_enable); bool is_continuous_collision_detection_enabled() const; diff --git a/modules/bullet/space_bullet.cpp b/modules/bullet/space_bullet.cpp index c6d835742d..a9a811c445 100644 --- a/modules/bullet/space_bullet.cpp +++ b/modules/bullet/space_bullet.cpp @@ -945,6 +945,11 @@ bool SpaceBullet::test_body_motion(RigidBodyBullet *p_body, const Transform3D &p G_TO_B(p_from, body_transform); UNSCALE_BT_BASIS(body_transform); + if (!p_body->get_kinematic_utilities()) { + p_body->init_kinematic_utilities(); + p_body->reload_kinematic_shapes(); + } + btVector3 initial_recover_motion(0, 0, 0); { /// Phase one - multi shapes depenetration using margin for (int t(RECOVERING_MOVEMENT_CYCLES); 0 < t; --t) { @@ -958,6 +963,9 @@ bool SpaceBullet::test_body_motion(RigidBodyBullet *p_body, const Transform3D &p btVector3 motion; G_TO_B(p_motion, motion); + real_t total_length = motion.length(); + real_t unsafe_fraction = 1.0; + real_t safe_fraction = 1.0; { // Phase two - sweep test, from a secure position without margin @@ -1007,6 +1015,15 @@ bool SpaceBullet::test_body_motion(RigidBodyBullet *p_body, const Transform3D &p dynamicsWorld->convexSweepTest(convex_shape_test, shape_world_from, shape_world_to, btResult, dynamicsWorld->getDispatchInfo().m_allowedCcdPenetration); if (btResult.hasHit()) { + if (total_length > CMP_EPSILON) { + real_t hit_fraction = btResult.m_closestHitFraction * motion.length() / total_length; + if (hit_fraction < unsafe_fraction) { + unsafe_fraction = hit_fraction; + real_t margin = p_body->get_kinematic_utilities()->safe_margin; + safe_fraction = MAX(hit_fraction - (1 - ((total_length - margin) / total_length)), 0); + } + } + /// Since for each sweep test I fix the motion of new shapes in base the recover result, /// if another shape will hit something it means that has a deepest penetration respect the previous shape motion *= btResult.m_closestHitFraction; @@ -1043,6 +1060,9 @@ bool SpaceBullet::test_body_motion(RigidBodyBullet *p_body, const Transform3D &p r_result->collider_id = collisionObject->get_instance_id(); r_result->collider_shape = r_recover_result.other_compound_shape_index; r_result->collision_local_shape = r_recover_result.local_shape_most_recovered; + r_result->collision_depth = Math::abs(r_recover_result.penetration_distance); + r_result->collision_safe_fraction = safe_fraction; + r_result->collision_unsafe_fraction = unsafe_fraction; #if debug_test_motion Vector3 sup_line2; @@ -1067,6 +1087,11 @@ int SpaceBullet::test_ray_separation(RigidBodyBullet *p_body, const Transform3D G_TO_B(p_transform, body_transform); UNSCALE_BT_BASIS(body_transform); + if (!p_body->get_kinematic_utilities()) { + p_body->init_kinematic_utilities(); + p_body->reload_kinematic_shapes(); + } + btVector3 recover_motion(0, 0, 0); int rays_found = 0; |