diff --git a/src/modules/voxelrender/RawVolumeRenderer.cpp b/src/modules/voxelrender/RawVolumeRenderer.cpp
index 3d4d52242..8d4fac8e5 100644
--- a/src/modules/voxelrender/RawVolumeRenderer.cpp
+++ b/src/modules/voxelrender/RawVolumeRenderer.cpp
@@ -5,6 +5,8 @@
 #include "RawVolumeRenderer.h"
 #include "core/Common.h"
 #include "core/Trace.h"
+#include <glm/ext/scalar_constants.hpp>
+#include <glm/gtc/epsilon.hpp>
 #include "video/FrameBufferConfig.h"
 #include "video/ScopedFrameBuffer.h"
 #include "video/Texture.h"
@@ -290,12 +292,18 @@ bool RawVolumeRenderer::updateBufferForVolume(int idx, const voxel::VertexArray&
 }
 
 void RawVolumeRenderer::setAmbientColor(const glm::vec3& color) {
+	if (glm::all(glm::epsilonEqual(_ambientColor, color, 0.001f))) {
+		return;
+	}
 	_ambientColor = color;
 	// force updating the cached uniform values
 	_voxelShader.markDirty();
 }
 
 void RawVolumeRenderer::setDiffuseColor(const glm::vec3& color) {
+	if (glm::all(glm::epsilonEqual(_diffuseColor, color, 0.001f))) {
+		return;
+	}
 	_diffuseColor = color;
 	// force updating the cached uniform values
 	_voxelShader.markDirty();
diff --git a/src/tools/voxedit/modules/voxedit-util/SceneManager.cpp b/src/tools/voxedit/modules/voxedit-util/SceneManager.cpp
index 4f89b7039..4ef8459a3 100644
--- a/src/tools/voxedit/modules/voxedit-util/SceneManager.cpp
+++ b/src/tools/voxedit/modules/voxedit-util/SceneManager.cpp
@@ -1792,7 +1792,7 @@ bool SceneManager::init() {
 	}
 
 	_autoSaveSecondsDelay = core::Var::get(cfg::VoxEditAutoSaveSeconds, "180");
-	_ambientColor = core::Var::get(cfg::VoxEditAmbientColor, "0.2 0.2 0.2");
+	_ambientColor = core::Var::get(cfg::VoxEditAmbientColor, "1.0 1.0 1.0");
 	_diffuseColor = core::Var::get(cfg::VoxEditDiffuseColor, "1.0 1.0 1.0");
 	_cameraZoomSpeed = core::Var::get(cfg::VoxEditCameraZoomSpeed, "10.0");
 	const core::TimeProviderPtr& timeProvider = app::App::getInstance()->timeProvider();
@@ -1899,14 +1899,8 @@ bool SceneManager::update(double nowSeconds) {
 		});
 	}
 
-	if (_ambientColor->isDirty()) {
-		_volumeRenderer.setAmbientColor(_ambientColor->vec3Val());
-		_ambientColor->markClean();
-	}
-	if (_diffuseColor->isDirty()) {
-		_volumeRenderer.setDiffuseColor(_diffuseColor->vec3Val());
-		_diffuseColor->markClean();
-	}
+	_volumeRenderer.setAmbientColor(_ambientColor->vec3Val());
+	_volumeRenderer.setDiffuseColor(_diffuseColor->vec3Val());
 	animate(nowSeconds);
 	autosave();
 	return loadedNewScene;