Removed the static keyword from dimBlock and dimGrid in the rtkCudaForwardProjectionImageFilter, which caused the dimGrid to be computed only once, resulting in some parts of the images not being calculated in some cases in SART.
Removed the static keyword from dimBlock and dimGrid in the
rtkCudaForwardProjectionImageFilter, which caused the dimGrid to be
computed only once, resulting in some parts of the images not being
calculated in some cases in SART.

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