diff --git a/src/engine/platform/c140.cpp b/src/engine/platform/c140.cpp
index c83a93247..693f462c7 100644
--- a/src/engine/platform/c140.cpp
+++ b/src/engine/platform/c140.cpp
@@ -76,10 +76,10 @@ void DivPlatformC140::acquire_219(short** buf, size_t len) {
       writes.pop();
     }
 
-    c219_tick(&c219, 1);
+    c219_tick(&c219,1);
     // scale as 16bit
-    c219.lout >>= 10;
-    c219.rout >>= 10;
+    c219.lout>>=10;
+    c219.rout>>=10;
 
     if (c219.lout<-32768) c219.lout=-32768;
     if (c219.lout>32767) c219.lout=32767;
@@ -91,7 +91,11 @@ void DivPlatformC140::acquire_219(short** buf, size_t len) {
     buf[1][h]=c219.rout;
 
     for (int i=0; i<totalChans; i++) {
-      oscBuf[i]->data[oscBuf[i]->needle++]=(c219.voice[i].lout+c219.voice[i].rout)>>10;
+      if (c219.voice[i].inv_lout) {
+        oscBuf[i]->data[oscBuf[i]->needle++]=(c219.voice[i].lout-c219.voice[i].rout)>>10;
+      } else {
+        oscBuf[i]->data[oscBuf[i]->needle++]=(c219.voice[i].lout+c219.voice[i].rout)>>10;
+      }
     }
   }
 }
diff --git a/src/gui/render/renderGL.cpp b/src/gui/render/renderGL.cpp
index d5cda85d2..1950e2431 100644
--- a/src/gui/render/renderGL.cpp
+++ b/src/gui/render/renderGL.cpp
@@ -108,7 +108,7 @@ const char* sh_oscRender_srcF=
   "  float x1 = uv.x-uAdvance;\n"
   "  float x2 = uv.x;\n"
   "  float x3 = uv.x+uAdvance;\n"
-  "  float val1 = texture2D(oscVal,vec2(x2,1.0)).x;\n"
+  "  float val1 = texture2D(oscVal,vec2(x1,1.0)).x;\n"
   "  float val2 = texture2D(oscVal,vec2(x2,1.0)).x;\n"
   "  float val3 = texture2D(oscVal,vec2(x3,1.0)).x;\n"
   "  float valmax = max(max(val1,val2),val3);\n"
@@ -121,7 +121,7 @@ const char* sh_oscRender_srcF=
   "    alpha=fur_fragCoord.y-valmin*uResolution.y*0.5+uLineWidth*0.5;\n"
   "  }\n"
   "  if (slope>1.0) {\n"
-  "    gl_FragColor = vec4(0.0,1.0,0.0,uColor.w*clamp(alpha,0.0,1.0));\n"
+  "    gl_FragColor = vec4(uColor.xyz,uColor.w*clamp(alpha,0.0,1.0));\n"
   "  } else {\n"
   "    gl_FragColor = vec4(uColor.xyz,uColor.w*clamp(alpha,0.0,1.0));\n"
   "  }\n"
@@ -169,7 +169,7 @@ const char* sh_oscRender_srcF=
   "  float x1 = uv.x-uAdvance;\n"
   "  float x2 = uv.x;\n"
   "  float x3 = uv.x+uAdvance;\n"
-  "  float val1 = texture(oscVal,x2).x;\n"
+  "  float val1 = texture(oscVal,x1).x;\n"
   "  float val2 = texture(oscVal,x2).x;\n"
   "  float val3 = texture(oscVal,x3).x;\n"
   "  float valmax = max(max(val1,val2),val3);\n"