Compute Shaders!  The last type.
	The last big lego to take out of the box
		There are more little ones

The abstract compute space
	3D grid of workgroups
	A workgroup is like what we have with vertex shaders, etc
	So you can have multiple instances in a workgroup
	But, the instances are a 3D grid
	So you have a 3D grid of instances within a 3D grid of workgroups
		A lot of the time, you can ignore one 3D grid or the other
		Or even 2 out of 3 dimensions

Storage!
	Shader Storage Buffers
	It's the in out parameter we've been wanting...
		Interesting question:  Can we use one from a vertex shader?
	Declared as a "buffer", but we have to explain the layout
	Layout specification:
		packed, shared, std140, std430
		Favors alignment on 4 float (128 bit) lines
			- I couldn't dissuade my drivers from doing this
	binding number

Inputs:
	stuff about abstract compute space

Outputs:
	Nothing predefined

Names:

layout( ) buffer <global_name> {
	members
} <optional_local_name> ;

Input/Output is mostly just up to you!

Example:  Using compute shaders to move the cube around

Getting data out of a buffer, in case you need it for something
	Like last week's feedback example

So now we could actually use these for general purpose computation
	

Or physics...

Practice Problem:  Add velocity to the x or z direction for the cube vertices.  Try making them the same, and different!