New blog post about optimizing zoom animations (again).
TL;DR exponential map representation is much more efficient than interpolating key frames
Never mind about the mipmaps, they're probably not necessary as I intent to sample from the textures stochastically anyway for antialiasing/supersampling.
But will see how much VRAM is needed for a full set of annulus strip textures - perhaps I'll have to mipmap anyway just for space reasons... 4 channels of 4 bytes each at 9(2^n)^2 pixels quickly gets big, mipmaps for each of L rings multiplies by a factor of 4/3 L; but only needing to store the smaller mipmaps of the inner annuli reduces that factor to (4/3)^2
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