TAA reprojection

[mvaligursky]

Improvement to the initial TAA implementation (#5909):

• Support for moving camera

Other changes:

• partial support for velocity buffer rendering, will be finished in a follow up PR
• new TAA example

taa1080.mov

Limitations:

• No support for moving objects - velocity buffer implementation needs to be finalized for this.
• The scene gets slightly soft when TAA is enabled. This is typically improved by a sharpening pass, which will be added in a separate PR.

[Maksims]

Velocity buffer can be very useful for WebXR Space Warp technique. https://developer.oculus.com/documentation/web/webxr-space-warp/

I guess the format of vector data and the way it is stored is important here. If it matches between implementations - that would be just amazing!

[mvaligursky]

Velocity buffer can be very useful for WebXR Space Warp technique.

created an issue: #6116

[willeastcott]

Suggested change

	* @type {Texture}
	* @type {Texture|null}

[mvaligursky]

This is one of the unsolved issues I have with types. I want to declare a member ahead of time, like TS does, and then initialize it in constructor. But that does not mean the null is a valid type, as I assign a texture object to this in the constructor. So marking type as Texture|null just gives me VSC error on every access to it if I'm missing a null check. So I prefer to have a single error here and not allow null.

Thoughts?