Note:  I put an RTX card in the classroom computer
	The resolution is acting weird
	Hopefully I'm in time to play with that...

Alright, first task:
	Import the buffer from last time into a fragment shader
	We'll need a demo that actually renders something
	Sorting, basically

Did it work?
	Let's try some different sampling approaches
	Also modify the image with a compute shader
		Can we produce a shifting effect of some sort?

Did it just totally fail?
	Well, that's disappointing
	Here's a lenthy approach that's not really very good:
		Copy to a buffer on the card
		Run the compute shader
		Copy back
		Make a texture object
		Use the texture object in the fragment shader

Either way:
	render-to-texture is maybe a more expected way to do this
	
Map-Reduce:
	Suppose we're going to calculate the average of each r, g, and b
	We'll have to put the results somewhere
	And engage many shaders
	Won't that lead to a single-thread process to finish?
	Not if we can summarize with less shaders than pixels!