From de7d47a9f171fcb8ca76d682c23123168a517086 Mon Sep 17 00:00:00 2001
From: Jean Pierre Cimalando <jp-dev@inbox.ru>
Date: Thu, 1 Apr 2021 02:47:40 +0200
Subject: [PATCH] Handle multiplicative depth modulations

---
 src/sfizz/modulations/ModMatrix.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/sfizz/modulations/ModMatrix.cpp b/src/sfizz/modulations/ModMatrix.cpp
index 3d780ef4..7c64244f 100644
--- a/src/sfizz/modulations/ModMatrix.cpp
+++ b/src/sfizz/modulations/ModMatrix.cpp
@@ -423,7 +423,12 @@ float* ModMatrix::getModulation(TargetId targetId)
                     for (uint32_t i = 0; i < numFrames; ++i)
                         buffer[i] = sourceDepth * sourceBuffer[i];
                 }
+                else if (targetFlags & kModIsMultiplicative) {
+                    for (uint32_t i = 0; i < numFrames; ++i)
+                        buffer[i] = (sourceDepth * sourceDepthMod[i]) * sourceBuffer[i];
+                }
                 else {
+                    ASSERT(targetFlags & kModIsAdditive);
                     for (uint32_t i = 0; i < numFrames; ++i)
                         buffer[i] = (sourceDepth + sourceDepthMod[i]) * sourceBuffer[i];
                 }
@@ -435,7 +440,7 @@ float* ModMatrix::getModulation(TargetId targetId)
                         multiplyMul1<float>(sourceDepth, sourceBuffer, buffer);
                     else {
                         for (uint32_t i = 0; i < numFrames; ++i)
-                            buffer[i] *= (sourceDepth + sourceDepthMod[i]) * sourceBuffer[i];
+                            buffer[i] *= (sourceDepth * sourceDepthMod[i]) * sourceBuffer[i];
                     }
                 }
                 else {