Quote:
Originally Posted by Gagorian
Is it normal that OpenCL error diffusion increases average rendering time 3x? My GPU is a r9 270 (basically a 7870?) and using latest madVR.
I tried playing a few 1080p24 standard x264 blu-ray movies presented at 23.976 Hz.
Average rendering time (using Jinc 3 AR for both Luma and Chroma, Debanding low, all trade quality for performance options except OpenCL error diffusion disabled) was around 8-10 ms. The rendering time is about the same for 720p movies, so scaling for instance is rather cheap even with Jinc 3 AR.
With OpenCL error diffusion the average rendering time was raised to around 28-30 ms.
Should it really be that demanding?
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Quote:
Originally Posted by madshi
Is smooth motion on or off? What is your display resolution? On my PC the cost of Error diffusion seems to be quite a bit lower than on yours, even though I only have an 7770. Is your display resolution much higher than 1080p, maybe?
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Smooth motion is off (like I said presented at 23.976 Hz) and display resolution is 1080p. Newest catalyst drivers and AMD APP SDK 2.9 installed.