Mat Caird Posted November 13, 2006 Share Posted November 13, 2006 Hi All The new HDRI feature is great, and I have had some good success with it. The latest drawing I am doing however is exhibiting a pronounced grainness when the HDRI render quality is any higher than 'low'. Can anyone shed some light (haha) on this please. Thansk, Mat Quote Link to comment
Ray Libby Posted November 13, 2006 Share Posted November 13, 2006 Is it of an exterior or interior? Quote Link to comment
Mat Caird Posted November 13, 2006 Author Share Posted November 13, 2006 interior, and here's the image at low quality. Quote Link to comment
Mat Caird Posted November 13, 2006 Author Share Posted November 13, 2006 and here is the medium quality Quote Link to comment
Ray Libby Posted November 13, 2006 Share Posted November 13, 2006 I've found the same thing, it sounds like for the time HDRI shouldn't be used for interiors. Take a look at this post: http://techboard.nemetschek.net/ubbthrea...age=0#Post68075 Scroll Down to Dave Donley's post #68481 - 11/02/06 10:07 AM Quote Link to comment
Mat Caird Posted November 13, 2006 Author Share Posted November 13, 2006 thanks Ray. Quote Link to comment
Guest Posted November 14, 2006 Share Posted November 14, 2006 HDRI's strength is for exteriors while Radiosity rendering has strengths with interior renderings. You will really move mountains if play with the Radiosity settings. Start with Fast Radiosity to get an idea of the time it will take to render. Anything fancier than Fast will exponentially increase in render times. Quote Link to comment
Guest Posted December 6, 2006 Share Posted December 6, 2006 Kaite is right. HDRI is really for exterior renderings, although I could see a benefit to using for interiors when sunlight is the dominant light source. The issue of grain in the resulting image is real however. Regardless of quality settings, this muddiness or graininess is unfortunate. As you can see in the pictures, the HDRI version has much better lighting, but the grain prevented me from being able to use it. Quote Link to comment
MKingsley Posted December 7, 2006 Share Posted December 7, 2006 Michael, I like the HDRI one better, in spite of the grain. Just a nicer quality. Quote Link to comment
propstuff Posted December 7, 2006 Share Posted December 7, 2006 Michael P. I've produced HDRIs with no visible grain like yours. Sorry I can't pinpoint exactly what is the issue here, but it can be done. What resolution was the HDRI? What did effect did changing the quality in the "background edit" fields have? N. Quote Link to comment
Sandking Posted December 7, 2006 Share Posted December 7, 2006 Grain can be removed by adding more pass renders to it. I don't know how it is correctly named but it should be somewhere in render options. Try making very high quality renders. Quote Link to comment
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