When I open my render tiff in photoshop it says it is 8bit?
Where do I enable higher bit depth renders?
I did a search, and went through the preferences in TG2, but don't see a setting.
My forum search did not really answer my question directly.
Thanks, I know I'm asking a lot of questions. :(
I am having issues with banding in a blue sky, and that is why I'm asking.
Looks like 32bit Tiff files do exist, however most are 8 to 16 bit according to a google search...
Save as EXR elipsis1 .
Quote from: Kadri on March 12, 2012, 10:10:40 PM
Save as EXR elipsis1 .
Kardi is correct. But also save the tiff from the same render, you will always want to have both for post work.
Thanks.
TheBadger, so when would you want to use the tiff if it is only 8 bit?
Hi,
TG2 always renders with high dynamic range. Any conversion to a lower dynamic range, typically 8 bit (i.e. 24 bit RGB), happens when you save a render. As Kadri points out you can save a render as EXR to get a high bit depth OpenEXR image.
Regards,
Jo
Thank you Jo.
Quote from: elipsis1 on March 12, 2012, 10:38:31 PM
Thanks.
TheBadger, so when would you want to use the tiff if it is only 8 bit?
When printing you will most likely be sending out an 8 bit file, so you will be scaling the image down anyway. When you do this, it is good to have the tiff for blending into the HDR image. I do this sometimes to soften the effects of tone mapping. The aesthetics of an HDR and a render tiff often differ in there very nature, and you don't want to get stuck with one or the other. Re-prosesing a tone mapping for an animation or print series can be inconvenient, and I often find tone mapping to harsh on it own.
Anyway, the short of it is aesthetics.
Thanks :)
You guys are all very patient and helpful.
While TIFF as a format does support 16/32bit per channel, TG2 does not currently output TIFF files at this bit depth. It does *read* such TIFFs however. To get "high dynamic range" output use EXR or SGI (.SGI/.RGB).
- Oshyan