Antonio Vazquez
80123efc5f
There were several problems in the old random calculation: * Different result in the viewport and render. * Noise "pop" in some frames. * Random number was calculated every time the file was opened, so get different results. Now, instead to calculate the random numbers when n number of frames changed, the random values are calculated using a unique seed by stroke. Also, a new Seed parameter has been added and this adds more control in the noise generated. This value can be animated and get more variations. Differential Revision: http://developer.blender.org/D5393