diff --git a/modules/bullet/space_bullet.cpp b/modules/bullet/space_bullet.cpp index e3874e74b38..60bd04cc1a2 100644 --- a/modules/bullet/space_bullet.cpp +++ b/modules/bullet/space_bullet.cpp @@ -983,6 +983,9 @@ bool SpaceBullet::test_body_motion(RigidBodyBullet *p_body, const Transform &p_f 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 @@ -1032,6 +1035,15 @@ bool SpaceBullet::test_body_motion(RigidBodyBullet *p_body, const Transform &p_f 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; @@ -1068,6 +1080,9 @@ bool SpaceBullet::test_body_motion(RigidBodyBullet *p_body, const Transform &p_f 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;