stbenge <myu### [at] hotmailcom> wrote:
 > A speed enhancement can be used to cut the render time down
 > significantly, with an arguably acceptable loss of accuracy. Under this
 > setup, two instances of the same object are used. One copy is visible,
 > uses blurred reflection, and has a no_reflection modifier applied to it.
 > The other copy uses non-blurred reflection, but with a no_image modifier
 > applied.

Would there be a corresponding technique for speeding up blurred refractions?

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