NAME

       maketx -- convert images to tiled, MIP-mapped textures

SYNOPSIS

       Usage: maketx [options] file...

DESCRIPTION

       This  program is part of the OpenImageIO (http://www.openimageio.org) tool suite.  Detailed documentation
       is available in pdf format with the OpenImageIO distribution.

OPTIONS

       --help Print help message

       --version
              Print version and exit

       -v     Verbose status messages

       -o FILENAME
              Output filename

       --threads NUMTHREADS
              Number of threads (default: #cores)

       -u     Update mode

       --format FILEFORMAT
              Specify output file format (default: guess from extension)

       --nchannels N
              Specify the number of output image channels.

       --chnames CHANNELNAMES
              Rename channels (comma-separated)

       -d TYPE
              Set the output data format to one of: uint8, sint8, uint16, sint16, half, float

       --tile WIDTH HEIGHT
              Specify tile size

       --separate
              Use planarconfig separate (default: contiguous)

       --compression NAME
              Set the compression method (default = zip, if possible)

       --fovcot FOVCAT
              Override the frame aspect ratio. Default is width/height.

       --wrap WRAP
              Specify wrap mode (black, clamp, periodic, mirror)

       --swrap WRAP
              Specific s wrap mode separately

       --twrap WRAP
              Specific t wrap mode separately

       --resize
              Resize textures to power of 2 (default: no)

       --noresize
              Do not resize textures to power of 2 (deprecated)

       --filter FILTERNAME
              Select filter for resizing (choices: box triangle gaussian  sharp-gaussian  catmull-rom  blackman-
              harris  sinc lanczos3 radial-lanczos3 nuke-lanczos6 mitchell bspline disk cubic keys simon rifman,
              default=box)

       --hicomp
              Compress HDR range before resize, expand after.

       --sharpen SHARPEN
              Sharpen MIP levels (default = 0.0 = no)

       --nomipmap
              Do not make multiple MIP-map levels

       --checknan
              Check for NaN/Inf values (abort if found)

       --fixnan STRATEGY
              Attempt to fix NaN/Inf values in the image (options: none, black, box3)

       --fullpixels
              Set the 'full' image range to be the pixel data window --Mcamera %f %f %f %f %f %f %f %f %f %f  %f
              %f %f %f %f %f Set the camera matrix --Mscreen %f %f %f %f %f %f %f %f %f %f %f %f %f %f %f %f Set
              the screen matrix --MNDC %f %f %f %f %f %f %f %f %f %f %f %f %f %f %f %f Set the NDC matrix

       --prman-metadata
              Add prman specific metadata

       --attrib NAME VALUE
              Sets metadata attribute (name, value)

       --sattrib NAME VALUE
              Sets string metadata attribute (name, value)

       --sansattrib
              Write command line into Software & ImageHistory but remove --sattrib and --attrib options

       --constant-color-detect
              Create 1-tile textures from constant color inputs

       --monochrome-detect
              Create 1-channel textures from monochrome inputs

       --opaque-detect
              Drop alpha channel that is always 1.0

       --no-compute-average
              Don't compute and store average color

       --ignore-unassoc
              Ignore unassociated alpha tags in input (don't autoconvert)

       --runstats
              Print runtime statistics

       --mipimage FILENAME
              Specify an individual MIP level

       --cdf  Store the forward and inverse Gaussian CDF as a lookup-table. The variance is set by cdfsigma (1/6
              by  default), and the number of buckets               in the lookup table is determined by cdfbits
              (8 bit - 256 buckets by default)

       --cdfsigma N
              Specify the Gaussian sigma parameter when writing the forward and inverse Gaussian CDF  data.  The
              default vale is 1/6 (0.1667)

       --cdfbits N
              Specify  the  number of bits used to store the forward and inverse Gaussian CDF. The default value
              is 8 bits

       Basic modes (default is plain texture):

              --shadow
                     Create shadow map

              --envlatl
                     Create lat/long environment map

              --lightprobe
                     Create lat/long environment map from a light probe

              --bumpslopes
                     Create a 6 channels bump-map with height, derivatives and square derivatives from an height
                     or a normal map

              --uvslopes_scale VALUE
                     If specified, compute derivatives for --bumpslopes in UV space rather than in  texel  space
                     and divide them by a scale factor. 0=disable by default, only valid for height maps.

              --bumpformat NAME
                     Specify  the interpretation of a 3-channel input image for --bumpslopes: "height", "normal"
                     or "auto" (default).

              --handed STRING
                     Specify the handedness of a vector or normal map: "left", "right", or "" (default).

       Color Management Options (OpenColorIO enabled)

              --colorconfig FILENAME
                     Explicitly specify an OCIO configuration file

              --colorconvert IN OUT
                     Apply a color space conversion to the image. If the output color space is not the same  bit
                     depth  as input color space, it is your responsibility to set the data format to the proper
                     bit depth using the -d option.  (choices: NONE)

              --unpremult
                     Unpremultiply before color conversion, then premultiply after the color conversion.  You'll
                     probably want to use this flag if your image contains an alpha channel.

       Configuration Presets

              --prman
                     Use PRMan-safe settings for tile size, planarconfig, and metadata.

              --oiio Use OIIO-optimized settings for tile size, planarconfig, metadata.

                                                25 February 2025                                       maketx(1)