The interpolateToNextFrame argument tells you how close you are to the next frame. You should
take your current state and add the estimated next frame things multiplied by this to get smoother
animation. interpolateToNextFrame will always be >= 0 and < 1.0.
The D Programming Language's Unofficial Docs
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Implement this to draw.
The interpolateToNextFrame argument tells you how close you are to the next frame. You should take your current state and add the estimated next frame things multiplied by this to get smoother animation. interpolateToNextFrame will always be >= 0 and < 1.0.