Render in 48-bit color

[Karl Gunnar Holmqvist]

Hi, does anyone know how to render in 48 bit color in AM?

To get the really loooooong gray scales

Redgards

KG Holmqvist

[Fuchur]

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*

[robcat2075]

By "48-bit" do you mean 16bits per RGB channel (3x16=48) or do you mean 48bits per each RGB channel?

[robcat2075]

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?

[Karl Gunnar Holmqvist]

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