Ok i say its not calssic linear problem but who knows maybe i suck.

I tried so many things but i just cant get my zip- single scanline (or any form of compression) EXR to look like my render viewport (its like .12 gamma off)

tiff in any form looks correct.
jpeg obviously also correct, i suppose it just takes a snapshot anyway.
exr is off..

here are the files that you can load into nuke and compare.


my color settings are “2.2 gamma” on all cop renderviewports and stuff. Basically houdini defaults on all.

just read your tif and jpg as Gamma2.2 instead of sRGB as that seems to be the colorspace they were saved with and that seems to match your linear exr

@ TAMTE, thanks for the reply, but how can i make it work with EXR, i dont care about jpegs .

i suppose it is a colorspace thing therefore im an idiot, So i suppose my question should be, how can i make the viewport look at the render like nuke looks at the exr

in Nuke i use the same tiff saved file:

TIFF = input sRGB = Looks like viewport mantra
TIFF = input linear * .454 gamma = Looks like the EXR
EXR = input linear fraction darker than viewport.

change your nuke viewport colorspace from sRGB to Gamma2.2 to see the same since in houdini you are using gamma 2.2


so the thing is, it's both:

your tifs and jpegs have to be read with the same colorspace as saved out, so Gamma2.2 to be linearized corectly, therefore match .exr
but then you need to look at the linear data the same way as in hou, hence Gamma2.2 viewport correction

by reading jpegs/tifs as sRGB and then applying sRGB in viewport, they cancel each other out so you are essentially just looking at the data in jpeg/tif, which has gamma 2.2 already baked in hence you see it as in Houdini, however the data in nuke is not exactly linear

tamte
change your nuke viewport colorspace from sRGB to Gamma2.2 to see the same since in houdini you are using gamma 2.2


so the thing is, it's both:

your tifs and jpegs have to be read with the same colorspace as saved out, so Gamma2.2 to be linearized corectly, therefore match .exr
but then you need to look at the linear data the same way as in hou, hence Gamma2.2 viewport correction

by reading jpegs/tifs as sRGB and then applying sRGB in viewport, they cancel each other out so you are essentially just looking at the data in jpeg/tif, which has gamma 2.2 already baked in hence you see it as in Houdini, however the data in nuke is not exactly linear

ooh ok that make sense that they cancel it out anywany.

So what do you suggest i do to have EXR's look the same in houdini viewport render and nuke

as I said, just look at them with Gamma2.2 lut instead of sRGB (which I suppose you are using as that's default in nuke)

thanks sir you are my hero!