diff --git a/Packages/com.unity.render-pipelines.high-definition/Runtime/Lighting/VolumetricClouds/VolumetricCloudsUtilities.hlsl b/Packages/com.unity.render-pipelines.high-definition/Runtime/Lighting/VolumetricClouds/VolumetricCloudsUtilities.hlsl
index b5520a75063..38fbf6a1b9d 100644
--- a/Packages/com.unity.render-pipelines.high-definition/Runtime/Lighting/VolumetricClouds/VolumetricCloudsUtilities.hlsl
+++ b/Packages/com.unity.render-pipelines.high-definition/Runtime/Lighting/VolumetricClouds/VolumetricCloudsUtilities.hlsl
@@ -819,8 +819,12 @@ float EvaluateFinalTransmittance(float3 color, float transmittance)
     // reverse the tone mapping
     resultLuminance = resultLuminance / (1.0 - resultLuminance);
 
+    // By softening the transmittance attenuation curve for pixels adjacent to cloud boundaries when the luminance is super high,  
+    // We can prevent sun flicker and improve perceptual blending. (https://www.desmos.com/calculator/vmly6erwdo)
+    float finalTransmittance = max(resultLuminance / luminance, pow(transmittance, 6));
+
     // This approach only makes sense if the color is not black
-    return luminance > 0.0 ? lerp(transmittance, resultLuminance / luminance, _ImprovedTransmittanceBlend) : transmittance;
+    return luminance > 0.0 ? lerp(transmittance, finalTransmittance, _ImprovedTransmittanceBlend) : transmittance;
 }
 
 #endif // VOLUMETRIC_CLOUD_UTILITIES_H