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HDRI renderings too grainy

Mat Caird

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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.

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  • 4 weeks later...

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.



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