1. A method of rasterizing a motion blurred triangle comprising: using a computer to analytically determine a time interval of overlap for a sample point for each of a plurality of time dependent edge equations; storing, for said interval, when the sample point is inside a moving triangle; storing, for said interval, a depth and color representation, wherein if a number of stored intervals per pixel exceeds a threshold value: estimating a similarity between each of the stored intervals based on their respective stored parameters; and merging the two stored intervals having the highest similarity until the number of stored intervals per pixel is less than or equal to the threshold value.