32 bit exr's

[wxyz]

When saving out of the frame buffer how do you creat 32 bit files?

[Donald2B]

I don't believe you can, you have to setup the save before the render. Or at least that is the only way I can get a 32bit exr.

[instinct]

do you mean the vray vfb ?
As for the vrayVFB you can set this via maxscrtipt:


.output_rawExrUseHalf : boolean

defaults to on saving half-float. Setting it to false will write 32bit full float.

Regards,
Thorsten

[nils_p]

Standard vfb only supports 16bit. You can output to 32bit if you uncheck "rendered frame window"
Just make sure that you create an output file. (exr)

[fizzgig826]

This is how i do it. (See Attached)
Don't forget to choose 32bit when it prompts you.
-Fizzgig

[instinct]

Standard vfb only supports 16bit. You can output to 32bit if you uncheck "rendered frame window"
Just make sure that you create an output file. (exr)

This will still create a HalfFloat image, not full-float. Usually that is enough tho

[jonahhawk]

If the Save File: output is set to save an EXR, and you render, the Max VFB will be 32bit float.

[crazy homeless guy]

Not to mention that EXR's are incredible efficient with file size when using 16bit. Really really efficient.

[sumario]

Hi I really don´t understand how to do it, if I set in the V-ray Frame Buffer "Render to V-ray raw image file" but I change the format to .exr will that file be in 32bit full float?

[vlado]

Hi I really don´t understand how to do it, if I set in the V-ray Frame Buffer "Render to V-ray raw image file" but I change the format to .exr will that file be in 32bit full float?

By default it will be a 16-bit exr. You must use the MaxScript command earlier in the thread to make V-Ray output a 32-bit one.

Best regards,
Vlado

[sumario]

By default it will be a 16-bit exr. You must use the MaxScript command earlier in the thread to make V-Ray output a 32-bit one.

Best regards,
Vlado

Ok I am going to test that, Thanks....

[nils_p]

This will still create a HalfFloat image, not full-float. Usually that is enough tho

But the vray fb is full float right?

[vlado]

Yes, the V-Ray VFB stores everything as floating-point 32-bits per channel.

Best regards,
Vlado

[nils_p]

Great, you guy got me worried here for a sec

[CA Portugal]

Instinct could you so kindly explain step by step how to edit the maxscript you mentioned.

Trying to figure it out but dont know what to do exactly.

Cheers.