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Vray GI speed and antialiasing About Truespace Archives These pages are a copy of the official truespace forums prior to their removal somewhere around 2011. They are retained here for archive purposes only. Vray GI speed and antialiasing // Bugs 1  |   Order by default Post by Cthulhu // Jul 7, 2007, 9:24pm Cthulhu Total Posts: 48 Not sure if this is a bug, but when calculating a GI solution, it seems like Vray (1.51 and earlier) is performing antialiasing on all the steps, not just the final render. If I set the antialiasing to Draft, the GI is calculated much quicker. Setting the antialiasing to 4x increases the calculation time significantly. It seems like GI would be faster to calculate if Draft was used for calculation steps, and leave whatever antialiasing is set to for the final render. Also, in Vray 1.5+, should standard raytracing be faster than Lightworks? I don't see a significant increase in speed. Post by parva // Jul 7, 2007, 11:11pm parva Total Posts: 822 As far as I know only the final array of pixels in the picture are antialiased not the GI point cloud & calculation. Draft is just an undersampling means the resolution is twice the size of your rendered frame and 2x, 3x, 4x AA is supersampling. It's possible that the calculation occurs obvious faster, there the bucket size (the size of the squares if you render) hasn't changed but generally it should be take longer due to the larger pixel size. You can use draft-size GI calculation if you don't increase the min/max rate over -3 or -2 but of course you will loose accuracy and details in the GI result. I recommend to use the adaptive AA even if it produce often a blurry result. Generally I'm not happy with the AA of truespace vray and wished we had the same image sampler like the original.

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