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ctmviewer(1)		    General Commands Manual		  ctmviewer(1)

NAME
       ctmviewer - 3D viewer for models	of various file	formats

SYNOPSIS
       ctmviewer [modelfile [texturefile]]

DESCRIPTION
       ctmviewer  is  a	 3D  file viewer that can load,	show and save 3D model
       files in	several	different formats.

       The program displays an interactive 3D view of the model, which can  be
       operated	with the mouse (e.g. for rotating and zooming).

       If  the selected	model file contains texture coordinate information, it
       is possible to specify which 2D image file to use as a texture with the
       additional texturefile argument.	If no texture file is given (either by
       the 3D model file, or by	the texturefile	argument), a standard 2D  grid
       is used as a texture.

GUI OPERATIONS
       In addition to the command line arguments, ctmviewer offers several op-
       erations	that can be performed from the 3D GUI display. For help, press
       the F1 key.

   Loading and Saving
       It  is possible to load and save	3D model files from the	program	by ei-
       ther using the buttons in the upper left	corner of the 3D  display,  or
       by using	the keyboard shortcuts CTRL+O (open) and CTRL+S	(save).

       It  is  also  possible to load a	texture	file from the program by using
       the Open	Texture	button.

   Rendering
       To toggle between a normal filled surface view  (default)  and  a  wire
       frame view, press the 'w' key.

   Camera Control
       By  holding down	the left mouse button and moving the mouse, the	camera
       is rotated around the 3D	model.

       By holding down the right mouse button and moving the mouse, the	camera
       will pan	left/right and up/down.

       By  holding down	the middle mouse button	and moving the mouse, the cam-
       era will	zoom in	and out. It is also possible to	use  the  mouse	 wheel
       (not supported on all systems) or the +/- keys to zoom in and out.

       Double click the	left mouse button on a point on	the model to focus the
       camera on that point.

       Press the 'f' key to fit	the model into the screen view (re-center  and
       re-zoom).

       Press  the 'y' key to change the	camera up direction to the Y axis (may
       be necessary if the model was designed in or for	an  environment	 where
       the Y axis is considered	the up direction).

       Press  the 'z' key to change the	camera up direction to the Z axis (de-
       fault).

FILE FORMATS
       The following 3D	model file  formats  are  supported:  OpenCTM  (.ctm),
       Stanford	 triangle  format  (.ply),  Stereolitography (.stl), 3D	Studio
       (.3ds), COLLADA 1.4/1.5 (.dae), Wavefront geometry file (.obj),	Light-
       Wave  object (.lwo), Geomview object file format	(.off),	VRML 2.0 - ex-
       port only (.wrl).

       The following 2D	image  file  formats  are  supported  (texture):  JPEG
       (.jpg), PNG (.png).

AVAILABILITY
       ctmviewer is designed to	be portable, and is available for several dif-
       ferent systems, including (but not  limited  to):  Windows,  Mac	 OS  X
       (10.3+),	Linux and OpenSolaris.

       ctmviewer  uses	OpenGL for its accelerated 3D display. When the	OpenGL
       implementation supports it, ctmviewer will use per pixel	Phong  shading
       for  improved  visual appearance. Otherwise ctmviewer will fall back to
       classic per vertex shading.

SEE ALSO
       ctmconv(1)

								  ctmviewer(1)

NAME | SYNOPSIS | DESCRIPTION | GUI OPERATIONS | FILE FORMATS | AVAILABILITY | SEE ALSO

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