Added `scene.physicsEnabled` boolean

dist/preview release/what's new.md

@@ -51,6 +51,7 @@
 - Fixed time steps or delta time with sub time step for Oimo.js and Cannon.js ([cedricguillemet](https://github.com/cedricguillemet))
 - Ammo.js IDL exposed property update and raycast vehicle stablization support ([MackeyK24](https://github.com/MackeyK24))
 - Recast.js plugin nav mesh and crowd agent to ref performance optimizations. ([MackeyK24](https://github.com/MackeyK24))
+- Added `scene.physicsEnabled` boolean ([Deltakosh](https://github.com/deltakosh))
 
 ### Loaders
 

inspector/src/components/actionTabs/tabs/debugTabComponent.tsx

@@ -79,6 +79,7 @@ export class DebugTabComponent extends PaneComponent {
                 </LineContainerComponent>
                 <LineContainerComponent globalState={this.props.globalState} title="FEATURES">
                     <CheckBoxLineComponent label="Animations" isSelected={() => scene.animationsEnabled} onSelect={() => scene.animationsEnabled = !scene.animationsEnabled} />
+                    <CheckBoxLineComponent label="Physics" isSelected={() => scene.physicsEnabled} onSelect={() => scene.physicsEnabled = !scene.physicsEnabled} />
                     <CheckBoxLineComponent label="Collisions" isSelected={() => scene.collisionsEnabled} onSelect={() => scene.collisionsEnabled = !scene.collisionsEnabled} />
                     <CheckBoxLineComponent label="Fog" isSelected={() => scene.fogEnabled} onSelect={() => scene.fogEnabled = !scene.fogEnabled} />
                     <CheckBoxLineComponent label="Lens flares" isSelected={() => scene.lensFlaresEnabled} onSelect={() => scene.lensFlaresEnabled = !scene.lensFlaresEnabled} />

src/scene.ts

@@ -968,6 +968,12 @@ export class Scene extends AbstractScene implements IAnimatable {
         return this._texturesEnabled;
     }
 
+    // Physics
+    /**
+     * Gets or sets a boolean indicating if physic engines are enabled on this scene
+     */
+    public physicsEnabled = true;
+
     // Particles
     /**
     * Gets or sets a boolean indicating if particles are enabled on this scene
@@ -3873,7 +3879,9 @@ export class Scene extends AbstractScene implements IAnimatable {
                 this.onAfterAnimationsObservable.notifyObservers(this);
 
                 // Physics
-                this._advancePhysicsEngineStep(defaultFrameTime);
+                if (this.physicsEnabled) {
+                    this._advancePhysicsEngineStep(defaultFrameTime);
+                }
 
                 this.onAfterStepObservable.notifyObservers(this);
                 this._currentStepId++;
@@ -3894,7 +3902,9 @@ export class Scene extends AbstractScene implements IAnimatable {
             this.onAfterAnimationsObservable.notifyObservers(this);
 
             // Physics
-            this._advancePhysicsEngineStep(deltaTime);
+            if (this.physicsEnabled) {
+                this._advancePhysicsEngineStep(deltaTime);
+            }
         }
     }