diff --git a/libraries/render-utils/src/DebugDeferredBuffer.cpp b/libraries/render-utils/src/DebugDeferredBuffer.cpp
index d0e2859e90..9ffd94af38 100644
--- a/libraries/render-utils/src/DebugDeferredBuffer.cpp
+++ b/libraries/render-utils/src/DebugDeferredBuffer.cpp
@@ -76,6 +76,7 @@ static const std::string DEFAULT_ROUGHNESS_SHADER {
     "vec4 getFragmentColor() {"
     "    DeferredFragment frag = unpackDeferredFragmentNoPosition(uv);"
     "    return vec4(vec3(pow(frag.roughness, 1.0 / 2.2)), 1.0);"
+   // "    return vec4(vec3(pow(colorRamp(frag.roughness), vec3(1.0 / 2.2))), 1.0);"
     " }"
 };
 static const std::string DEFAULT_NORMAL_SHADER {
diff --git a/libraries/render-utils/src/LightAmbient.slh b/libraries/render-utils/src/LightAmbient.slh
index e343d8c239..b919108115 100644
--- a/libraries/render-utils/src/LightAmbient.slh
+++ b/libraries/render-utils/src/LightAmbient.slh
@@ -39,7 +39,7 @@ vec3 evalAmbientSpecularIrradiance(LightAmbient ambient, vec3 fragEyeDir, vec3 f
             <@if supportAmbientMap@>
         {
             float levels = getLightAmbientMapNumMips(ambient);
-            float lod = min(floor((roughness)* levels), levels);
+            float lod = min(((roughness)* levels), levels);
             specularLight = evalSkyboxLight(direction, lod).xyz;
         }
     <@endif@>
diff --git a/libraries/render-utils/src/debug_deferred_buffer.slf b/libraries/render-utils/src/debug_deferred_buffer.slf
index 079f79c06e..c018e5e526 100644
--- a/libraries/render-utils/src/debug_deferred_buffer.slf
+++ b/libraries/render-utils/src/debug_deferred_buffer.slf
@@ -13,6 +13,8 @@
 //
 
 <@include DeferredBufferRead.slh@>
+<@include gpu/Color.slh@>
+<$declareColorWheel()$>
 
 uniform sampler2D linearDepthMap;
 uniform sampler2D halfLinearDepthMap;
diff --git a/libraries/render-utils/src/surfaceGeometry_downsampleDepthNormal.slf b/libraries/render-utils/src/surfaceGeometry_downsampleDepthNormal.slf
index 533073b224..46554dd7f8 100644
--- a/libraries/render-utils/src/surfaceGeometry_downsampleDepthNormal.slf
+++ b/libraries/render-utils/src/surfaceGeometry_downsampleDepthNormal.slf
@@ -24,8 +24,8 @@ void main(void) {
     // Gather 2 by 2 quads from texture
 
     // Try different filters for Z
-//    vec4 Zeyes = textureGather(linearDepthMap, varTexCoord0, 0);
-  //  float Zeye = min(min(Zeyes.x, Zeyes.y), min(Zeyes.z, Zeyes.w));
+    //vec4 Zeyes = textureGather(linearDepthMap, varTexCoord0, 0);
+    //float Zeye = min(min(Zeyes.x, Zeyes.y), min(Zeyes.z, Zeyes.w));
     float Zeye = texture(linearDepthMap, varTexCoord0).x;
 
     vec4 rawNormalsX = textureGather(normalMap, varTexCoord0, 0);