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

       -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 N
              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 Guassian 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).

       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.

                                          18 August 2022                                maketx(1)