Legacy ImageMagick Discussions Archive

I solve my problem by first splitting all input files into 4 files representing each R G B and A channels. I then "montage" each channels into 4 tiled cubemaps and finaly recombine all those into a single RGBA cubemap.
thanks !

I am not doing anything other than calling the command line I posted. I am not converting into JPEG or anything like that. I am simply piping RGBA exr files into montage, but somehow it drops the color of pixels that have transparency. here's a picture showing what I see when I open a source image ...

Sure, here's a zip with the source RGBA images, and the resulting montage (called cubemap_color_m414.233_75.38_373.8693.exr) Command line I'm using "montage.exe top.exr bottom.exr left.exr right.exr up.exr down.exr -background none -channel rgba -alpha on -tile 6x1 -geometry +0+0 result.exr"; In the ...

hmm I've tried all sorts of other combinations, can't make this work.
anybody has any ideas?

cheers

6.9

hello, I am trying to "montage" a bunch of RGBA exr files into 1 tiled image. I literally want to "copy and paste" each image into the tiled image without modifying any RGBA pixel values. But ImageMagick insists on messing around with my alpha channel. No matter what option I use, it insists on ...