Project Demo
	This *technically* meets the requirements, but hasn't been polished (at all)

Drawing a Fruit from a Seed
	General challenge:  Represent a fruit with a single vertex
		Last Fall's Game Engine Design method:  Use a CPU loop
			Serializes what ought to be a parallel process
			OpenGL doesn't really handle multiple threads
		An issue:  The tessellation shader subdivides squares and triangles
		Another issue:  Could be drawn in the geometry shader, but we couldn't use a tessellation shader then
		Instanced Rendering:  Vertex order, but if we pre-load ONE model, we can draw it many places
			That's what instanced rendering is intended to solve!
	We have a compute shader that moves vertices around already
	And a tessellation shader than makes spheres based on a cube
		But, it has to know where the center is!
		
Tessellation Levels and Distance
	Need to relate distance from camera and tessellation level
	Level 0 culls the polygon completely
	Distance from the camera, difference spaces
		camera space vs. world space and model space
			There are other spaces too!
	Example:  Tessellate the cube more when it's close, and less when it's far away
		We can just go closer and closer

Initial Velocity outward
	Just have to compute it
	The physics compute shader from last time actually supports it

Multiple programs:  Don't avoid it, multiple programs are ok
	Tree and fruit

Wind effects on fruit, pre- and post-fruitfall

Upcoming Course Directions:
	Lighting:  Pretty soon
	Textures:  I think these should be mentioned
	3D graphics is a big area, and we've been going wherever I please
		If you have something that would really complete your 492 experience, let me know
		Could also be a good project idea
	Compute pivot post-midterm
		At this point, OpenCL is the leading candidate
			Vs. CUDA
		Motivating problem:  3D image analysis for Bioinformatics
		Vulkan is intended as the successor to both OpenGL and OpenCL
		At this point, I'm planning on a one-week intro to Vulkan at the end
		DX12 is intended to compete with Vulkan
		RTX ray tracing interface in DX12 and Vulkan, but not (yet?) OpenGL

Lab today:  Start your project
	
Practice Problem:  Make the bounces smaller and make the fruit become flatter after hitting the ground
	Kind of complicated, you'll have to know (for each fruit) if that fruit has hit the ground before in the TES
	Can either add a boolean, or perhaps hijack the w coordinate from center (would have to apply MVP differently)