Hi have trouble with atnold 5 on houdini on windows:

[klipodelSJ22F]

INFO [htoa.texture] AiMakeTx D:/HOUDINI/Models/Wheel/nnew_gum.jpg -v -u --unpremult --oiio --format exr -d half --compression dwaa --colorconvert "sRGB" "linear" ERROR [htoa.texture] Error converting texture[0]: D:/HOUDINI/Models/Wheel/nnew_gum.jpg INFO [htoa.texture] Converted 0 textures in 0:00:00.25 (0 skipped, 1 errors)

[ashley.handscomb.retallack]

Do you have write access to the folder where that texture lives?

[klipodelSJ22F]

yea its on my home computer, another renders like a corona, vray , eat it with no problem, and another error in console, Houdini say something like a no memory for converting to tx, but texture weight 164kb.

[klipodelSJ22F]

add info from console:
00:00:00 133MB | log started Mon Feb 12 17:08:54 2018 00:00:00 133MB | Arnold 5.0.2.3 [d2dbe434] windows icc-17.0.2 oiio-1.7.17 osl-1.9.0 vdb-4.0.0 clm-1.0.3.513 rlm-12.2.2 2017/12/21 17:47:20 00:00:00 133MB | running on bullet, pid=5196 00:00:00 133MB | 1 x Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz (4 cores, 8 logical) with 32720MB 00:00:00 133MB | Windows 7 Ultimate Edition Service Pack 1 (version 6.1, build 7601) 00:00:00 133MB | soft limit for open files raised from 512 to 2048 00:00:00 133MB | 00:00:00 133MB | [vop_shaders] Registering shaders ... 00:00:00 133MB | loading plugins from C:/Users/stalevarov/htoa/htoa-2.2.2_ra19eea7_houdini-16.5.323/htoa-2.2.2_ra19eea7_houdini-16.5.323/arnold/plugins ... 00:00:00 134MB | htoa_mandelbulb_proc.dll: mandelbulb uses Arnold 5.0.2.3 00:00:00 134MB | loaded 1 plugins from 1 lib(s) in 0:00.00 00:00:00 134MB | [vop_shaders] Loading metadata file: C:/Users/stalevarov/htoa/htoa-2.2.2_ra19eea7_houdini-16.5.323/htoa-2.2.2_ra19eea7_houdini-16.5.323/arnold/metadata/cameras.mtd 00:00:00 134MB | [vop_shaders] Loading metadata file: C:/Users/stalevarov/htoa/htoa-2.2.2_ra19eea7_houdini-16.5.323/htoa-2.2.2_ra19eea7_houdini-16.5.323/arnold/metadata/lights.mtd 00:00:00 134MB | [vop_shaders] Loading metadata file: C:/Users/stalevarov/htoa/htoa-2.2.2_ra19eea7_houdini-16.5.323/htoa-2.2.2_ra19eea7_houdini-16.5.323/arnold/metadata/options.mtd 00:00:00 134MB | [vop_shaders] Loading metadata file: C:/Users/stalevarov/htoa/htoa-2.2.2_ra19eea7_houdini-16.5.323/htoa-2.2.2_ra19eea7_houdini-16.5.323/arnold/metadata/shaders.mtd 00:00:00 135MB | [vop_shaders] Loading metadata file: C:/Users/stalevarov/htoa/htoa-2.2.2_ra19eea7_houdini-16.5.323/htoa-2.2.2_ra19eea7_houdini-16.5.323/arnold/metadata/shapes.mtd 00:00:00 136MB | [vop_shaders] shader registration done. 00:00:00 136MB | 00:00:00 136MB | releasing resources 00:00:00 136MB | Arnold shutdown 00:00:00 650MB WARNING | [AiMakeTx] prep 0.00s (664.7 MB) Reading file: D:/MOVIE_2018/_DREAM_treiler/HOUDINI/Models/Wheel/nnew_gum.jpg read "D:/MOVIE_2018/_DREAM_treiler/HOUDINI/Models/Wheel/nnew_gum.jpg" 0.02s (668.0 MB) Monochrome image detected. Converting to single channel texture. misc2 0.13s (670.2 MB) Converting from colorspace 'sRGB' to colorspace 'linear' Unpremulting image... color convert 0.02s (672.7 MB) misc3 0.00s (672.7 MB) resize & data convert 0.00s (672.7 MB) SHA-1: 02C487B38E6C877CB1BF0CCA2DE8AB1B3F4C3106 SHA-1 hash 0.01s (672.7 MB) AverageColor: 0.00634256 misc4 0.00s (672.7 MB) Writing file: D:/MOVIE_2018/_DREAM_treiler/HOUDINI/Models/Wheel/nnew_gum.e3dba27b.temp.tx Filter "box" Top level is 1504x1499 Mipmapping... 752x749 (684.9 MB) 376x374 (675.9 MB) 188x187 (675.9 MB) 94x93 (675.9 MB) 47x46 (675.9 MB) 23x23 (675.9 MB) 11x11 (675.9 MB) 5x5 (675.9 MB) 2x2 (675.9 MB) maketx ERROR writing "D:/MOVIE_2018/_DREAM_treiler/HOUDINI/Models/Wheel/nnew_gum.e3dba27b.temp.tx" : Failed OpenEXR write: Failed to write pixel data to image file "D:/MOVIE_2018/_DREAM_treiler/HOUDINI/Models/Wheel/nnew_gum.e3dba27b.temp.tx". Data compression (zlib) failed. maketx run time (seconds): 0.30 file read: 0.02 file write: 0.09 initial resize: 0.00 hash: 0.01 mip computation: 0.03 color convert: 0.02 unaccounted: 0.16 ( 0.00 0.13 0.00 0.00) maketx peak memory used: 684.9 MB 00:00:00 650MB ERROR | [htoa.texture] Error converting texture[0]: D:/MOVIE_2018/_DREAM_treiler/HOUDINI/Models/Wheel/nnew_gum.jpg

[klipodelSJ22F]

iv find new way for this troubele ) if some one need it in future, make form jpeg, tif and before save it convert it to 16bit file TX converting is worked again !

[frederic.servant]

This is a regression that was introduced in HtoA 2.2.0 (Arnold 5.0.2.0) that affects 8-bit grayscale textures. We are looking into fixing it in HtoA ticket #988.