viscosity force fix

Add viscosity to velocities once, not at every iteration.
Kemchobro · Dec 3, 2023 · 8591e6b · 8591e6b
1 parent 2e2dd4f
commit 8591e6b
Showing 1 changed file with 2 additions and 3 deletions.
diff --git a/Assets/Scripts/Sim 3D/Compute/FluidSim3D.compute b/Assets/Scripts/Sim 3D/Compute/FluidSim3D.compute
@@ -265,9 +265,8 @@ void CalculateViscosity (uint3 id : SV_DispatchThreadID)
 			float3 neighbourVelocity = Velocities[neighbourIndex];
 			viscosityForce += (neighbourVelocity - velocity) * SmoothingKernelPoly6(dst, smoothingRadius);
 		}
-
-		Velocities[id.x] += viscosityForce * viscosityStrength * deltaTime;
 	}
+	Velocities[id.x] += viscosityForce * viscosityStrength * deltaTime;
 }
 
 [numthreads(NumThreads, 1, 1)]
@@ -277,4 +276,4 @@ void UpdatePositions(uint3 id : SV_DispatchThreadID)
 
 	Positions[id.x] += Velocities[id.x] * deltaTime;
 	ResolveCollisions(id.x);
-}
+}