![]() Maps/tremor.bspdir/lightmaps.d/lm_0009.tga: BottomLeft Maps/tremor.bspdir/lightmaps.d/lm_0008.tga: BottomLeft Maps/tremor.bspdir/lightmaps.d/lm_0007.tga: BottomLeft Maps/tremor.bspdir/lightmaps.d/lm_0006.tga: BottomLeft Maps/tremor.bspdir/lightmaps.d/lm_0005.tga: BottomLeft Maps/tremor.bspdir/lightmaps.d/lm_0004.tga: BottomLeft Maps/tremor.bspdir/lightmaps.d/lm_0003.tga: BottomLeft Maps/tremor.bspdir/lightmaps.d/lm_0002.tga: BottomLeft Maps/tremor.bspdir/lightmaps.d/lm_0001.tga: BottomLeft Maps/tremor.bspdir/lightmaps.d/lm_0000.tga: BottomLeft $ for i in $(find maps/tremor.bspdir/ -type f -name *.tga ) do printf '%s: %s\n ' $i $(identify -format "% " $i ) done # lightmaps, extracted from bsp file and written to tga by `esquirel` tool: ![]() $ esquirel bsp -ib maps/tremor.bsp -od maps/tremor.bspdir $ for i in $(find maps/tremor/ -type f -name *.tga ) do printf '%s: %s\n ' $i $(identify -format "% " $i ) done # lightmaps, produced by idtech 3 `q3map2` tool Textures/tremor/e6bsegrtflr256.tga: BottomLeft Textures/tremor/tremorspark1.tga: BottomLeft Textures/tremor/tremorlightblend.tga: BottomLeft Textures/tremor/plainglass.tga: BottomLeft ![]() Textures/tremor/light_128x512.tga: BottomLeft $ for i in $(find textures/ -type f -name *.tga ) do printf '%s: %s\n ' $i $(identify -format "% " $i ) done # textures, not produced by idTech 3 tools, likely to be produced by old GIMP or old Photoshop So because crunch supports TGA and I know default TGA output of imagemagick convert is well supported by crunch, I convert every PNG to TGA using imagemagick convert before converting to CRN using crunch to make sure the process never fail (unless imagemagick convert is at fault). Then I use dedicated tools for the final format.Īnother example is that I don't trust Crunch to support all existing PNG variants even if it claims to support PNG as input, because well, except PNG optimizers, almost no one tool try to compress PNG efficiently so those variants are usually untested by tools. Yes I know imagemagick may do webp as well, but my point is to never use image-specific option with imagemagick convert, like on this shell example. In Urcheon I use imagemagick to convert any format supported by imagemagick to a transient png before feeding another converter.įor example cwebp does not support tga on input, so I just convert everything to png before calling cwebp. Note: PNG to PNG is not a mistake, someone may want to rewrite PNG to sanitize them for example. Is there an option that can be trusted across versions ? At the time I implemented an ugly workaround for “jpg to tga” by converting to png first with -strip: b9a42f6Ĭonvert -auto-orient " $.png " doneĪnd always get the same orientation whatever the input format, and without changing the command line option given the format? ![]() #IMAGEMAGICK CONVERT PNG TO JPG CODE#That workaround can't be trusted and can't be used in third-party code because of the behavior not being the same across ImageMagick versions. So here there is report on issue when doing tga to png, there was reports for tga to tiff in #1406 and reports for tga to jpg in #3061 and now, the not using auto-invert gives what another version produces with, or using it gives what another version produces without. And I had noticed converting another jpg to png would be fine but then jpg to png to tga would be upside down, like if sometime the bug can be carried over some formats before popping up. I had noticed converting a given jpg to png would be fine but jpg to tga would be upside down, but then jpg to png to tga would be fine. ![]() In the past I faced the bug when converting jpg to tga and/or png: So, given the ImageMagick version, the behaviour can invert completely, meaning we can't trust options. On my end (ImageMagick 6.9), convert lm_0000.tga lm_0000.png is properly oriented, but convert -auto-orient lm_0000.tga lm_0000.png produces an upside down image. ![]()
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