Pic

From Odwiki

pic files are Houdini's general purpose image file format. rat files share many of the features but are better suited to texturemapping. Convert between the two formats using the icp or iconvert CommandlineTools.

Features of pic files

• DeepRaster format, meaning that it can store multiple layers (planes) of raster information (up to 4000 layers)
  • each may have a different # of channels, 1 to 4.
  • each may have a different data format 8/16/32 bit integer, optionally with white/black points, or 32 bit floating point
  • each may have from 1 to 4000 layers (think array)
  • each has its own name, plus a name for each channel ("Point", "x", "y", "z"). Arbitrary string length.
• HDRI support
• Lossless compression
• Indexed by scanline
• Scanlines can be skipped when read for quick data access
• All data in PIC is in Little Endian format (Intel)
• Tagged image format so that a writer can add his own tags.
• HDK API is available to read and write these images. Unrecognised tags will be ignored.
• Artist, Hostname and Comment strings
• Resolution - X: 1 -> 232/BPP X (approx), Y: 1 -> 232 (meaning that if you have 1K information per pixel, you are sadly limited to an image about 4 million pixels wide)
• PIC version info