>also, i believe a .tx format is actually a tif or exr format underneath. the >extension is really just to say to the user >this has been processed by the maketx utility. Just try to add a .tif to the file and you know :-) Or you can open the file in a text editor and see that the file starts with the tif magic id II. > unfortunately many apps have not implemented the full API of Tiff and support > multiple channels. I do not like .TIFF from the developer view. They made a file format which can do a lot. You could add anything, not only images. But digging into the format itself is complex. Not like .IFF, which can also do everything (even maya scene files are actually the .IFF format). MAC and PC save the format differently, RGB + CMYK + YCbCr + CIE Lab, 5 different compressions (lzw required a paid license), prefilters.. TIFF has pages (I think the official paper has about 100 pages) for its specification, IFF only 1-2 pages. Therefore I can understand if not all features are implemented by every app. .exr is a complete different story. It just works because you have a complete loader/writer because it is open source or you can download a compiled .dll. You can not make any mistake. Beside one, you can forget to implement the cropped region on load. (Like Adobe!! Anyone would like to join to report it that they increase the priority for that bug?) Holger Schönberger technical director The day has 24 hours, if that does not suffice, I will take the night
_____ From: softimage-boun...@listproc.autodesk.com [mailto:softimage-boun...@listproc.autodesk.com] On Behalf Of Steven Caron Sent: Sunday, November 18, 2012 12:21 AM To: softimage@listproc.autodesk.com Subject: Re: 16 bit tif from photoshop not working in softimage? yep :) "...i am converting them to an optimal rendering format for arnold during publish..." also, i believe a .tx format is actually a tif or exr format underneath. the extension is really just to say to the user this has been processed by the maketx utility. On Sat, Nov 17, 2012 at 3:03 PM, Alan Fregtman <alan.fregt...@gmail.com> wrote: Arnold has the "maketx" commandline utility to make .tx files out of textures. At work we made a batch job for the farm that converts a scene's textures to (mipmapped) .tx for Arnold's sake. In the renderer options somewhere there is a toggle to make Arnold use .tx files if it finds them in the same root as the texture paths. It's pretty handy. On Sat, Nov 17, 2012 at 3:40 PM, Steven Caron <car...@gmail.com> wrote: its not for softimage, its for arnold. arnold uses open image io which does support automatic mip mapping but we dont use it much... i can't be sure that softimage uses available mip map levels for displaying in the viewport. s
