Updated Ghoul version

Adapted to changed Ghoul API
Reenable fading of ScreenLog messages

modules/base/rendering/renderablestars.cpp

@@ -150,6 +150,7 @@ bool RenderableStars::initialize() {
 		"${MODULE_BASE}/shaders/star_vs.glsl",
 		"${MODULE_BASE}/shaders/star_fs.glsl",
 		"${MODULE_BASE}/shaders/star_ge.glsl");
+    
 	if (!_program)
 		return false;
 	completeSuccess &= loadData();

shaders/PowerScaling/powerScalingMath.hglsl

@@ -65,4 +65,4 @@ vec4 z_normalization(vec4 v_in) {
 	return v_out;
 }
 
-#endif
+#endif

src/engine/openspaceengine.cpp

@@ -272,7 +272,7 @@ bool OpenSpaceEngine::create(
 	_engine->_console->initialize();
 
 	// Register the provided shader directories
-	ghoul::opengl::ShaderPreprocessor::addIncludePath("${SHADERS}");
+	ghoul::opengl::ShaderPreprocessor::addIncludePath(absPath("${SHADERS}"));
 
 	_engine->_syncBuffer = new SyncBuffer(1024);
 

src/rendering/renderengine.cpp

@@ -656,8 +656,6 @@ void RenderEngine::render(const glm::mat4 &projectionMatrix, const glm::mat4 &vi
                         alpha = (p <= 0.f) ? 0.f : pow(p, 0.3f);
                     }
                     
-                    alpha = 1.f;
-
                     // Since all log entries are ordered, once one exceeds alpha, all have
                     if (alpha <= 0.0)
                         break;