Karl Gunnar Holmqvist Posted September 4, 2011 Share Posted September 4, 2011 Hi, does anyone know how to render in 48 bit color in AM? To get the really loooooong gray scales Redgards KG Holmqvist Quote Link to comment Share on other sites More sharing options...
Fuchur Posted September 4, 2011 Share Posted September 4, 2011 Hi, does anyone know how to render in 48 bit color in AM? To get the really loooooong gray scales Redgards KG Holmqvist As far as I now: Not possible... A:M only supports up to 32bit-output per channel with OpenEXR. Actually I hear for the first time of 48 bit images. What do you need that for? 32bit is already a very large color-space / dynamic-range... See you *Fuchur* Quote Link to comment Share on other sites More sharing options...
Hash Fellow robcat2075 Posted September 4, 2011 Hash Fellow Share Posted September 4, 2011 By "48-bit" do you mean 16bits per RGB channel (3x16=48) or do you mean 48bits per each RGB channel? Quote Link to comment Share on other sites More sharing options...
Hash Fellow robcat2075 Posted September 4, 2011 Hash Fellow Share Posted September 4, 2011 A:M implements the most accurate compression schemes of OpenEXR, which i believe use 32-bit floating point numbers for each channel (except PXR24) A 32-bit floating point channel should make for a very, very long gray scale. A:M doesn't implement the "lossy" B44 and B44A, AFAIK. You can read about all OpenEXR's compression options in this PDF under "Data compression" I dont know of any format that uses a 48-bit integer for each channel, is there one? Quote Link to comment Share on other sites More sharing options...
Karl Gunnar Holmqvist Posted September 4, 2011 Author Share Posted September 4, 2011 A:M implements the most accurate compression schemes of OpenEXR, which i believe use 32-bit floating point numbers for each channel (except PXR24) A 32-bit floating point channel should make for a very, very long gray scale. A:M doesn't implement the "lossy" B44 and B44A, AFAIK. You can read about all OpenEXR's compression options in this PDF under "Data compression" I dont know of any format that uses a 48-bit integer for each channel, is there one? Thank you very much for the advices.I'll do some tests. What I meant with 48 bit color is 16 bit for each color - R G and B. Floating point 32 will do fine...... Regards KG Holmqvist Quote Link to comment Share on other sites More sharing options...
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