new Falloff input for Turbulence Force

1 files changed, 5 insertions, 1 deletions

diff --git a/source/blender/simulations/bparticles/forces.cpp b/source/blender/simulations/bparticles/forces.cpp
index 99b9fd84041..5ee4ee6044c 100644
--- a/source/blender/simulations/bparticles/forces.cpp
+++ b/source/blender/simulations/bparticles/forces.cpp
@@ -31,13 +31,17 @@ void TurbulenceForce::add_force(ForceInterface &interface)
 
   auto inputs = m_compute_inputs->compute(interface);
 
+  TemporaryArray<float> weights(destination.size());
+  m_falloff->compute(interface.attributes(), interface.pindices(), weights);
+
   for (uint pindex : interface.pindices()) {
     float3 pos = positions[pindex];
     float3 strength = inputs->get<float3>("Strength", 0, pindex);
+    float weight = weights[pindex];
     float x = (BLI_gNoise(0.5f, pos.x, pos.y, pos.z + 1000.0f, false, 1) - 0.5f) * strength.x;
     float y = (BLI_gNoise(0.5f, pos.x, pos.y + 1000.0f, pos.z, false, 1) - 0.5f) * strength.y;
     float z = (BLI_gNoise(0.5f, pos.x + 1000.0f, pos.y, pos.z, false, 1) - 0.5f) * strength.z;
-    destination[pindex] += {x, y, z};
+    destination[pindex] += float3(x, y, z) * weight;
   }
 }