Houdini 17.0 Reference Stand-alone utilities

isixpack

Generates an environment/reflection map from six images representing the six sides of a cube, or a cross image.

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Usages

  1. isixpack [-u usize] [-v vsize] front right back left top bottom outimage

    Combines six separate images into an environment/reflection map. The images should be rendered with viewing angles of 90 degrees, a square resolution (typically 256 x 256), and a square pixel aspect ratio.

    • If the output format is .rat, the command generates a multi-file cubic environment map.

      You can retrieve each individual image from the .rat file using iconvert -i image_num reflect.rat outimage.

    • If the output format is not .rat, the command generates a single lat-long environment map.

  2. isixpack cross_image.pic map.rat

    Alternative to using separate images for each side of the cube, takes a single image which is laid out in the shape of a cross (similar to the example images here). This generates a single cubic .rat file.

    Lay out the cross image as either:

    Top
    Left Front Right
    Bottom
    Back

    …or…

    Right
    Top Front Bottom Back
    Left
  3. isixpack map.rat cross_image.pic

    Converts an environment/reflection map back into the corresponding cross image.

Options

Default output file resolution is 1024 x 512.

-u usize

Horizontal output resolution.

-v vsize

Vertical output resolution.

-a

Anti-alias the output with 3 x 3 Super sampling.

Examples

Generate a cubic environment .rat file from front, right, back, left top, and bottom images:

isixpack frnt.pic rite.pic back.pic left.pic top.pic bot.pic map.rat

Generate a cubic environment .rat file from a cross HDR image:

isixpack kitchen_cross.hdr kitchen.rat

Display a cubic environment map:

isixpack kitchen.rat ip

To make a .rat file which is a lat-long representation of the environment map, the environment map needs to be generated as a non-rat format initially:

isixpack front right back left top bottom stdout | iconvert stdin out.rat

Stand-alone utilities

  • abcconvert

    Convert between Alembic formats.

  • abcecho

    Print information about an Alembic file.

  • abcinfo

    Print information about an Alembic file.

  • chchan

    Copies channel collection to/from action channel format.

  • chcp

    Copies channel collection file to another format.

  • chinfo

    Prints information about a channel collection file.

  • claudio

    Copies CHOP data (clip) to/from audio formats.

  • clchan

    Copies CHOP data (clip) to/from action channel format.

  • clchn

    Copies CHOP data (clip) to/from channel collection format.

  • clcp

    Copies CHOP data (clip) to another format.

  • clinfo

    Prints information about a CHOP data (clip) file.

  • dsmconvert

  • dsmmerge

  • dsparse

    Parses and displays dialog scripts.

  • gabc

    Convert between Alembic and Houdini geometry.

  • gconvert

    Convert between Houdini polygon formats.

  • gdxf

    Converts DXF polygons to/from Houdini format.

  • geps

    Converts EPS files to Houdini polygon format.

  • giges

  • ginfo

    Prints polygon file statistics.

  • glightwave

    Converts LightWave files to/from Houdini format.

  • gplay

    Geometry viewer.

  • gptex

    Makes a ptexture image file from a geometry file.

  • greduce

    Reduces polygons in a file.

  • gwavefront

    Converts .obj files to/from Houdini format.

  • hbrickmap

    Converts an i3d file or volume primitive geo/bgeo file into a Pixar brickmap file.

  • hcollapse

    Collapses a directory structure.

  • hcpio

  • hexpand

    Expands hip files into a directory structure.

  • hrender

  • hsc

  • hscript

    Command line HScript interpreter.

  • i3dconvert

  • iautocrop

    Crops images based on pixel values.

  • icineon

    Convert images from 10-bit Cineon format to an 8 bit format.

  • icomposite

  • iconvert

    Converts image formats.

  • icp

    Isolate a region of an image in a new image.

  • iflip - Flip Image

  • iinfo

    Outputs information about an image.

  • ilut

    Generates a lookup table (LUT) from standard channel formats or another LUT.

  • ilutcomp

    Generates a single lookup table (LUT) from from two LUTs.

  • ilutinfo

    Prints information about a lookup table (LUT) file.

  • imdisplay

    Sends an image to an mdisplay window.

  • iprint

    Prints the RGBA values for an image as text.

  • iquantize

    Reduces the number of colors in an image.

  • isixpack

    Generates an environment/reflection map from six images representing the six sides of a cube, or a cross image.

  • itilestitch

    Assemble a series of image files with crop windows into a single image.

  • izg

    Converts Z-depth images to 8-bit grayscale images.

  • mcacclaim

    Converts an Acclaim motion file to a Houdini script and channel file(s).

  • mcbiovision

    Converts a BioVision motion file to a Houdini script and channel file(s).

  • mcmotanal

    Converts a Motion Analysis TRC motion file to a Houdini script and channel file(s).

  • mcp

    Convert an image sequence to a movie file.

  • minfo

    Prints information about movie files.

  • siminfo

    Prints simulation cache file statistics.

  • spy

    Shell utility for navigating the UNIX filesystem.

  • vexcache

    Query or modify the VEX compile cache.

  • vexexec

    Execute a cvex shader.