THERION(1)
π THERION(1) π
okay bestie, welcome to the General Commands Manual section, this is the THERION(1) page and we're talking about loch today. buckle up π
β¨ NAME β¨
loch β the Therion model viewer. that's it, that's the whole name, she's simple and she knows it π
πΈ SYNOPSIS πΈ
loch [FILE]
π¦ DESCRIPTION π¦
This manual page is all about loch, which is part of the therion-viewer package. iykyk π«Ά
So like, loch is a 3D viewer. It displays .lox files that therion produces, and it lets you poke around and examine them. that's the whole vibe. literally her one job and she ate π₯
π OPTIONS π
loch optionally takes a .lox, Survex .3d or Compass .plt file to open. yes bestie, three whole formats, she's flexible like that β¨
π BASIC CONTROL π
Key and Mouse Controls
okay here's the cheat sheet, screenshot this πΈ
- Zoom & Rotate β mouse: left click + drag
- Zoom only β mouse: left click + drag up/down, then hold left and click right Β· key:
Ctrl + Up/Down - Rotate only β mouse: left click + drag left/right, then hold left and click right Β· key:
Left/Right - Pan β mouse: right click + drag Β· key:
Shift + Arrows - Tilt β mouse: middle (wheel) click + drag or wheel rotate Β· key:
Up/Down - Full screen β mouse: left double click Β· key:
F11 - Context menu β mouse: right click
If continuous rotation is turned on, then rotation mouse movements change the speed or direction of rotation. but if rotation is locked, then rotation mouse movements have no effect at all. no cap, don't fight it, she's not listening π
π OFF SCREEN RENDERING π
Loch is able to render large bitmaps that can be afterwards post processed and printed. Bitmaps can be exported in PDF, PNG or BMP formats. Configuration of export is done via the Rendering setup dialog. You can set the following features:
Size and Scaling
- Screen shot: Screen copy will be saved into a file with no other changes.
- Image width: The screen image will be exported with the specified width.
- Image height: The screen image will be exported with the specified height.
- Scale: The screen image will be exported with the specified scale.
Image options
- Rendering resolution: Resolution of the image file used when image size or scale are specified.
- Image size: Image size in pixels and uncompressed bytes calculated from previous settings.
- White background: Force white background in exported image.
π KNOWN BUGS π
Sometimes empty rectangles appear in off screen rendered file. Changing the window size usually helps. (iconic behaviour tbh β¨)
- Crashes have been observed on intel graphics cards unless the texture initialisations are removed in the code.
- Stereo mode does not work correctly on some graphics adapters.
- This help does not work.
bestie the last one is sending me π the help doesn't work. the help. doesn't. work. she said "figure it out" π
β SEE ALSO β
For full information see the Therion Manual in /usr/share/doc/therion-doc/thbook.pdf which describes therion-viewer and its use in detail.
π§ AUTHOR π§
This manual page was adapted from existing docs by Wookey wookey@debian.org 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 GNU General Public License, Version 2 or any later version published by the Free Software Foundation.
and that's the whole page babes π«Ά it lives in the General Commands Manual, it's THERION(1), adapted for Debian by Wookey, and it's giving "i read the man page so you don't have to." go render something big and gorgeous, mwah ππ β¨
π¦ where this page comes from
- debian trixie: therion-viewer 6.3.4-2 Β· GPL-2.0-or-later
- ubuntu noble: therion-viewer 6.2.0-1build3 Β· GPL-2.0-or-later
- ubuntu questing: therion-viewer 6.3.4-2
- ubuntu resolute: therion-viewer 6.3.4-2build1 Β· GPL-2.0-or-later
- ubuntu stonking: therion-viewer 6.4.0-1build1 Β· GPL-2.0-or-later
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash on : a language model's rewrite of the original, under its terms