Esempio n. 1
0
        public virtual void ProcessTriangle(IndexedVector3[] triangle, int partId, int triangleIndex)
        {
            TriangleShape triangleShape = new TriangleShape(ref triangle[0], ref triangle[1], ref triangle[2]);

            triangleShape.SetMargin(m_triangleCollisionMargin);

            VoronoiSimplexSolver         simplexSolver           = BulletGlobals.VoronoiSimplexSolverPool.Get();
            GjkEpaPenetrationDepthSolver gjkEpaPenetrationSolver = new GjkEpaPenetrationDepthSolver();

            //#define  USE_SUBSIMPLEX_CONVEX_CAST 1
            //if you reenable USE_SUBSIMPLEX_CONVEX_CAST see commented ref code below
#if USE_SUBSIMPLEX_CONVEX_CAST
            SubsimplexConvexCast convexCaster = new SubsimplexConvexCast(m_convexShape, triangleShape, simplexSolver);
#else
            //btGjkConvexCast	convexCaster(m_convexShape,&triangleShape,&simplexSolver);
            ContinuousConvexCollision convexCaster = BulletGlobals.ContinuousConvexCollisionPool.Get();
            convexCaster.Initialize(m_convexShape, triangleShape, simplexSolver, gjkEpaPenetrationSolver);
#endif //#USE_SUBSIMPLEX_CONVEX_CAST

            CastResult castResult = BulletGlobals.CastResultPool.Get();
            castResult.m_fraction = 1f;
            if (convexCaster.CalcTimeOfImpact(ref m_convexShapeFrom, ref m_convexShapeTo, ref m_triangleToWorld, ref m_triangleToWorld, castResult))
            {
                //add hit
                if (castResult.m_normal.LengthSquared() > 0.0001f)
                {
                    if (castResult.m_fraction < m_hitFraction)
                    {
                        /* btContinuousConvexCast's normal is already in world space */

                        /*
                         #ifdef USE_SUBSIMPLEX_CONVEX_CAST
                         *                              //rotate normal into worldspace
                         *                              castResult.m_normal = m_convexShapeFrom.getBasis() * castResult.m_normal;
                         #endif //USE_SUBSIMPLEX_CONVEX_CAST
                         */
                        castResult.m_normal.Normalize();

                        ReportHit(ref castResult.m_normal, ref castResult.m_hitPoint, castResult.m_fraction, partId, triangleIndex);
                    }
                }
            }

            BulletGlobals.ContinuousConvexCollisionPool.Free(convexCaster);
            BulletGlobals.VoronoiSimplexSolverPool.Free(simplexSolver);
            castResult.Cleanup();
        }
Esempio n. 2
0
        public virtual void ProcessTriangle(IndexedVector3[] triangle, int partId, int triangleIndex)
        {
            TriangleShape triangleShape = new TriangleShape(ref triangle[0], ref triangle[1], ref triangle[2]);
            triangleShape.SetMargin(m_triangleCollisionMargin);

            VoronoiSimplexSolver simplexSolver = BulletGlobals.VoronoiSimplexSolverPool.Get();
            GjkEpaPenetrationDepthSolver gjkEpaPenetrationSolver = new GjkEpaPenetrationDepthSolver();

            //#define  USE_SUBSIMPLEX_CONVEX_CAST 1
            //if you reenable USE_SUBSIMPLEX_CONVEX_CAST see commented ref code below
#if USE_SUBSIMPLEX_CONVEX_CAST
	        SubsimplexConvexCast convexCaster = new SubsimplexConvexCast(m_convexShape, triangleShape, simplexSolver);
#else
            //btGjkConvexCast	convexCaster(m_convexShape,&triangleShape,&simplexSolver);
            ContinuousConvexCollision convexCaster = BulletGlobals.ContinuousConvexCollisionPool.Get();
            convexCaster.Initialize(m_convexShape, triangleShape, simplexSolver, gjkEpaPenetrationSolver);
#endif //#USE_SUBSIMPLEX_CONVEX_CAST

            CastResult castResult = BulletGlobals.CastResultPool.Get();
            castResult.m_fraction = 1f;
            if (convexCaster.CalcTimeOfImpact(ref m_convexShapeFrom, ref m_convexShapeTo, ref m_triangleToWorld, ref m_triangleToWorld, castResult))
            {
                //add hit
                if (castResult.m_normal.LengthSquared() > 0.0001f)
                {
                    if (castResult.m_fraction < m_hitFraction)
                    {
                        /* btContinuousConvexCast's normal is already in world space */
                        /*
                        #ifdef USE_SUBSIMPLEX_CONVEX_CAST
				                        //rotate normal into worldspace
				                        castResult.m_normal = m_convexShapeFrom.getBasis() * castResult.m_normal;
                        #endif //USE_SUBSIMPLEX_CONVEX_CAST
                        */
                        castResult.m_normal.Normalize();

                        ReportHit(ref castResult.m_normal, ref castResult.m_hitPoint, castResult.m_fraction, partId, triangleIndex);
                    }
                }
            }

            BulletGlobals.ContinuousConvexCollisionPool.Free(convexCaster);
            BulletGlobals.VoronoiSimplexSolverPool.Free(simplexSolver);
            castResult.Cleanup();
        }