The CATT 3D-viewer is a small stand-
alone application that
can be used for enhanced 3D-viewing ofCATT-Acoustic
models as well as customer presentations.
color surface coding (actual color, absorption coefficient,
scattering coefficient, specularity, diffusitivity for each octave)
variable lighting
WAV-file playing in walkthroughs
animated viewpoint transitions
animated walkthroughs
viewpoint lists that can be saved and loaded for
presentations
source viewpoints allowing for interactive aim and
positioning while viewing through -3, -6 and/or -9 dB contours.
interactive plane sub-division
selection and data readout (plane name, absorption and scattering
coeffiicients, area)
interactive plane list selection
for pasting into CATT-Acoustic
plane selection (Free from edit dialogs, e.g. for selection of Audience
planes).
on/off selection of all elements: surfaces, edges,
source-items (id, coord system, aim, box), receiver-items (id, coord-system
head direction, sphere), lamps, coordinate system, palette, viewpoints
elements can be individually colored
the viewer requires OpenGL 1.1 to be installed on your system
(preinstalled on all Windows versions except 95 OSR1 but can
then be downloaded for free from http://www.opengl.org). An advantage with OpenGL
3D graphics is that it will automatically make use of hardware 3D
support if the card installed supports OpenGL. Note that many
cheap 3D cards for games may only support Direct3D and not an
Installable Client Driver (ICD) for OpenGL. However, also
without hardware acceleration the generic OpenGL 1.1 renderer
is very fast and for normal use of the CATT 3D-Viewer no acceleration
is necessary.
Note:
for anyone that needs to view CATT
OGL, v8 PLT and v9 PL9-files without a CATT-Acoustic license or demo the standalone viewers can be downloaded.
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