--User changes

-Add new variations: bubbleT3D, crob, hexaplay3D, hexcrop, hexes, hexnix3D, loonie2, loonie3, nBlur, octapol and synth.
 -Allow for pre/post versions of dc_bubble, dc_cylinder and dc_linear whereas before they were omitted.
 -When saving a file with multiple embers in it, detect if time values are all the same and if so, start them at zero and increment by 1 for each ember.
 -Allow for numerous quality increases to be coalesced into one. It will pick up at the end of the current render.
 -Show selection highlight on variations tree in response to mouse hover. This makes it easier to see for which variation or param the current mouse wheel action will apply.
 -Make default temporal samples be 100, whereas before it was 1000 which was overkill.
 -Require the shift key to be held with delete for deleting an ember to prevent it from triggering when the user enters delete in the edit box.
  -This wasn't otherwise fixable without writing a lot more code.

--Bug fixes
 -EmberGenome was crashing when generating a sequence from a source file with more than 2 embers in it.
 -EmberGenome was improperly handling the first frame of a merge after the last frame of the loop.
  -These bugs were due to a previous commit. Revert parts of that commit.
 -Prevent a zoom value of less than 0 when reading from xml.
 -Slight optimization of the crescents, and mask variations, if the compiler wasn't doing it already.
 -Unique file naming was broken because it was looking for _# and the default names ended with -#.
 -Disallow renaming of an ember in the library tree to an empty string.
 -Severe bug that prevented some variations from being read correctly from params generated outside this program.
 -Severe OpenCL randomization bug. The first x coordinates of the first points in the first kernel call of the first ember of a render since the OpenCL renderer object was created were not random and were mostly -1.
 -Severe bug when populating xform selection distributions that could sometimes cause a crash due to roundoff error. Fix by using double.
 -Limit the max number of variations in a random ember to MAX_CL_VARS, which is 8. This ensures they'll look the same on CPU and GPU.
 -Prevent user from saving stylesheet to default.qss, it's a special reserved filename.

--Code changes
 -Generalize using the running sum output point inside of a variation for all cases: pre, reg and post.
 -Allow for array variables in variations where the address of each element is stored in m_Params.
 -Qualify all math functions with std::
 -No longer use our own Clamp() in OpenCL, instead use the standard clamp().
 -Redesign how functions are used in the variations OpenCL code.
 -Add tests to EmberTester to verify some of the new functionality.
 -Place more const and override qualifiers on functions where appropriate.
 -Add a global rand with a lock to be used very sparingly.
 -Use a map instead of a vector for bad param names in Xml parsing.
 -Prefix affine interpolation mode defines with "AFFINE_" to make their purpose more clear.
 -Allow for variations that change state during iteration by sending a separate copy of the ember to each rendering thread.
 -Implement this same functionality with a local struct in OpenCL. It's members are the total of all variables that need to change state within an ember.
 -Add Contains() function to Utils.h.
 -EmberRender: print names of kernels being printed with --dump_kernel option.
 -Clean up EmberTester to handle some of the recent changes.
 -Fix various casts.
 -Replace % 2 with & 1, even though the compiler was likely doing this already.
 -Add new file Variations06.h to accommodate new variations.
 -General cleanup.

Source/Fractorium/FractoriumRender.cpp

@@ -301,7 +301,33 @@ bool FractoriumEmberController<T>::Render()
 	bool success = true;
 	GLWidget* gl = m_Fractorium->ui.GLDisplay;
 	RendererCL<T, float>* rendererCL = nullptr;
-	eProcessAction action = CondenseAndClearProcessActions();
+	eProcessAction qualityAction, action;
+
+	//Quality is the only parameter we update inside the timer.
+	//This is to allow the user to rapidly increase the quality spinner
+	//without fully resetting the render. Instead, it will just keep iterating
+	//where it last left off in response to an increase.
+	T d = T(m_Fractorium->m_QualitySpin->value());
+
+	if (d < m_Ember.m_Quality)//Full restart if quality decreased.
+	{
+		m_Ember.m_Quality = d;
+		qualityAction = eProcessAction::FULL_RENDER;
+	}
+	else if (d > m_Ember.m_Quality && ProcessState() == ACCUM_DONE)//If quality increased, keep iterating after current render finishes.
+	{
+		m_Ember.m_Quality = d;
+		qualityAction = eProcessAction::KEEP_ITERATING;
+	}
+	else if (IsClose(d, m_Ember.m_Quality))
+		qualityAction = eProcessAction::NOTHING;
+
+	if (qualityAction == eProcessAction::FULL_RENDER)
+		Update([&] {});//Stop the current render, a full restart is needed.
+	else if (qualityAction == eProcessAction::KEEP_ITERATING)
+		m_ProcessActions.push_back(qualityAction);//Special, direct call to avoid resetting the render inside Update() because only KEEP_ITERATING is needed.
+
+	action = CondenseAndClearProcessActions();//Combine with all other previously requested actions.
 
 	if (m_Renderer->RendererType() == OPENCL_RENDERER)
 		rendererCL = dynamic_cast<RendererCL<T, float>*>(m_Renderer.get());
@@ -391,7 +417,7 @@ bool FractoriumEmberController<T>::Render()
 				//Only certain stats can be reported with OpenCL.
 				if (m_Renderer->RendererType() == OPENCL_RENDERER)
 				{
-					m_Fractorium->m_RenderStatusLabel->setText("Iters: " + iters + ". Scaled quality: " + scaledQuality + ". Total time: " + QString::fromStdString(renderTime));
+					m_Fractorium->m_RenderStatusLabel->setText("Iters: " + iters + ". Scaled quality: " + scaledQuality + ". Total time: " + QString::fromStdString(renderTime) + ".");
 				}
 				else
 				{
@@ -399,7 +425,7 @@ bool FractoriumEmberController<T>::Render()
 					QString badVals = ToString<qulonglong>(stats.m_Badvals);
 					QString badPercent = QLocale::system().toString(percent * 100, 'f', 2);
 
-					m_Fractorium->m_RenderStatusLabel->setText("Iters: " + iters + ". Scaled quality: " + scaledQuality + ". Bad values: " + badVals + " (" + badPercent + "%). Total time: " + QString::fromStdString(renderTime));
+					m_Fractorium->m_RenderStatusLabel->setText("Iters: " + iters + ". Scaled quality: " + scaledQuality + ". Bad values: " + badVals + " (" + badPercent + "%). Total time: " + QString::fromStdString(renderTime) + ".");
 				}
 				
 				if (m_LastEditWasUndoRedo && (m_UndoIndex == m_UndoList.size() - 1))//Traversing through undo list, reached the end, so put back in regular edit mode.