Merge branch 'physics-settings' of https://github.com/Tryibion/FlaxEngine into Tryibion-physics-settings

Source/Engine/Physics/PhysX/PhysicsBackendPhysX.cpp

@@ -890,17 +890,46 @@ void* PhysicsBackend::CreateScene(const PhysicsSettings& settings)
     sceneDesc.gravity = C2P(settings.DefaultGravity);
     sceneDesc.flags |= PxSceneFlag::eENABLE_ACTIVE_ACTORS;
     if (!settings.DisableCCD)
-        sceneDesc.flags |= PxSceneFlag::eENABLE_CCD;
+        sceneDesc.flags |= PxSceneFlag::eENABLE_CCD | PxSceneFlag::eENABLE_PCM;
     sceneDesc.simulationEventCallback = &scenePhysX->EventsCallback;
     sceneDesc.filterShader = FilterShader;
     sceneDesc.bounceThresholdVelocity = settings.BounceThresholdVelocity;
-    sceneDesc.solverType = PxSolverType::ePGS;
+    
+    switch (settings.SolverType)
+    {
+    case PhysicsSolverType::ProjectedGaussSeidelIterativeSolver:
+        sceneDesc.solverType = PxSolverType::ePGS;
+        break;
+    case PhysicsSolverType::DefaultTemporalGaussSeidelSolver:
+        sceneDesc.solverType = PxSolverType::eTGS;
+        break;
+    default: ;
+    }
+    
+    sceneDesc.solverType = PxSolverType::eTGS;
     if (sceneDesc.cpuDispatcher == nullptr)
     {
         scenePhysX->CpuDispatcher = PxDefaultCpuDispatcherCreate(Math::Clamp<uint32>(Platform::GetCPUInfo().ProcessorCoreCount - 1, 1, 4));
         CHECK_INIT(scenePhysX->CpuDispatcher, "PxDefaultCpuDispatcherCreate failed!");
         sceneDesc.cpuDispatcher = scenePhysX->CpuDispatcher;
     }
+    
+    switch (settings.BroadPhaseType)
+    {
+    case PhysicsBroadPhaseType::SweepAndPrune:
+        sceneDesc.broadPhaseType = PxBroadPhaseType::eSAP;
+        break;
+    case PhysicsBroadPhaseType::MultiboxPruning:
+        sceneDesc.broadPhaseType = PxBroadPhaseType::eMBP;
+        break;
+    case PhysicsBroadPhaseType::AutomaticBoxPruning:
+        sceneDesc.broadPhaseType = PxBroadPhaseType::eABP;
+        break;
+    case PhysicsBroadPhaseType::ParallelAutomaticBoxPruning:
+        sceneDesc.broadPhaseType = PxBroadPhaseType::ePABP;
+        break;
+    default: ;
+    }
 
     // Create scene
     scenePhysX->Scene = PhysX->createScene(sceneDesc);

Source/Engine/Physics/PhysicsSettings.h

@@ -6,6 +6,50 @@
 #include "Engine/Core/Math/Vector3.h"
 #include "Types.h"
 
+/// <summary>
+/// Broad phase algorithm used in the simulation.
+/// <see href="https://nvidia-omniverse.github.io/PhysX/physx/5.1.0/_build/physx/latest/struct_px_broad_phase_type.html"/>
+/// </summary>
+API_ENUM() enum class PhysicsBroadPhaseType
+{
+    /// <summary>
+    /// Sweep and prune.
+    /// </summary>
+    SweepAndPrune = 0,
+
+    /// <summary>
+    /// Multi box pruning.
+    /// </summary>
+    MultiboxPruning = 1,
+
+    /// <summary>
+    /// Automatic box pruning.
+    /// </summary>
+    AutomaticBoxPruning = 2,
+
+    /// <summary>
+    /// Parallel automatic box pruning.
+    /// </summary>
+    ParallelAutomaticBoxPruning = 3,
+};
+
+/// <summary>
+/// The type of solver used in the simulation.
+/// <see href="https://nvidia-omniverse.github.io/PhysX/physx/5.1.0/_build/physx/latest/struct_px_solver_type.html"/>
+/// </summary>
+API_ENUM() enum class PhysicsSolverType
+{
+    /// <summary>
+    /// Projected Gauss-Seidel iterative solver.
+    /// </summary>
+    ProjectedGaussSeidelIterativeSolver = 0,
+
+    /// <summary>
+    /// Default Temporal Gauss-Seidel solver.
+    /// </summary>
+    DefaultTemporalGaussSeidelSolver = 1,
+};
+
 /// <summary>
 /// Physics simulation settings container.
 /// </summary>
@@ -43,6 +87,18 @@ public:
     API_FIELD(Attributes="EditorOrder(70), EditorDisplay(\"Simulation\")")
     bool DisableCCD = false;
 
+    /// <summary>
+    /// Broad phase algorithm to use in the simulation.
+    /// </summary>
+    API_FIELD(Attributes="EditorOrder(71), EditorDisplay(\"Simulation\")")
+    PhysicsBroadPhaseType BroadPhaseType = PhysicsBroadPhaseType::SweepAndPrune;
+
+    /// <summary>
+    /// The solver type to use in the simulation.
+    /// </summary>
+    API_FIELD(Attributes="EditorOrder(72), EditorDisplay(\"Simulation\")")
+    PhysicsSolverType SolverType = PhysicsSolverType::ProjectedGaussSeidelIterativeSolver;
+
     /// <summary>
     /// The maximum allowed delta time (in seconds) for the physics simulation step.
     /// </summary>