---
name: "mgf2inv"
section: "1"
platform: "linux"
package: "radiance"
version: "4R1+20120125-1+b1"
release: "Debian 7 (Wheezy)"
platforms: ["linux"]
url: "https://new.carta.tech/radiance-experttools"
---

# mgf2inv(1)

Specialty programs of the Radiance package, used by experts

Part of [radiance-experttools(1)](/radiance-experttools/1.md).

## NAME

radiance-experttools — Specialty programs of the Radiance package, used by experts

## DESCRIPTION

This manual page documents briefly the  **debugcal**, **genambpos**, **genrhgrid**, **glaze**, **mgf2inv**, **mgfilt**, **nff2rad**, **objpict**, **optics2rad**, **pcwarp**, **pdelta**, **pgblur**, **plot4**, **ra\_hexbit**, **ra\_pfm**, **rlux**, **vinfo** and **xyzimage** commands.

These specialty programs of the Radiance package are commonly only used by experts, therefore the Radiance distribution does not contain full manpages for them.

### debugcal

**debugcal** is a script to debug cal files for Radiance

Takes octree and rcalc options as arguments. One of the rcalc options should be -f calfile. Note that the real arguments A1, A2, etc must also be given. Input is a ray origin and direction, such as that produced by ximage.

### genambpos

**genambpos** is a script which puts coloured markers (spheres) at points where hemispherical sampling was initiated.  The locations and levels are taken from the binary ambient file.

### genrhgrid

**genrhgrid** is a program to generate Radiance section grid representations

### glaze

Complex glazing model (goes with glaze1.cal and glaze2.cal)

### mgf2inv

**mgf2inv** is a translator from MGF to Inventor (or VRML) format

### mgfilt

**mgfilt** is a filter for MGF

### nff2rad

**nff2rad** converts Neutral File Format input to Radiance scene descriptions.

### objpict

**objpict** makes a nice multi-view picture of an object. Command line arguments contain materials and object files.

### optics2rad

**optics2rad** converts Optics 5 output to correct Radiance input.

### pbilat

Bilateral Filter.

### pcwarp

Intended as more general substitute for macbetcal, but never quite worked.

### pdelta

**pdelta** computes 1976 CIE Lab deltaE\* between two Radiance pictures.

### pgblur

**pgblur** applies Gaussian blur without resizing the image. More efficient than straight pfilt for large blurs.

### plot4

**plot4** is a program to put four metafile pages onto one.

### ra\_hexbit

**ra\_hexbit** is a program to generate bitmap files for use with hexbit4x1.fnt.

### ra\_pfm

**ra\_pfm** is a program to convert to/from Poskanzer Float Map image format using pvalue.

### rlux

**rlux** computes illuminance from ray origin and direction.

### vinfo

**vinfo** is a wrapper around vim to edit information header in Radiance files.

### xyzimage

**xyzimage** is a program to display one or more CIE XYZE pictures using ximage.

## AUTHOR

This manual page was written by Bernd Zeimetz \<bernd@bzed.de\> for  the **Debian** system (but may be used by others).  Permission is  granted to copy, distribute and/or modify this document under  the terms of the Radiance Software License, Version 1.0.