VisCAM RP User Manual (PDF) - Kxcad.net

File options
Here you can define settings that only apply to certain file formats. Certain options are displayed
only if the corresponding file format is available within the program version.
Write VFX files with strong compression (v1.1): This option enables a higher and lossless
compression of the model (up to 5-10 % of the original STL file).
INFO: VisCAM RP versions previous to 3.2 aren't able to import this kind of VFX file.
Write STL binary format: If this option is selected STL files are written in binary format (default
setting). If not selected STL files are written in ASCII format.
Write STL colors compatible with Magics: To save color values within STL files no official
specification exists, so different "unofficial" color addition specifications are created.
VisCAM RP uses the color addition specified by A. F. van der Geest,
http://home.wxs.nl/~spitstec, which is supported by different manufacturers. Additionally a
color addition of the company Materialise is published, which is used by their Magics Software.
If this option is selected, colored STL files are written compatible to the Magics Software of the
company Materialise.
When importing colored STL files, VisCAM RP automatically recognizes which color addition is
used and correctly used it. Therefore it is possible to use both variants using VisCAM RP without
any problems.
INFO: For every triangle to be saved within a binary STL file, 50 bytes are used. The first 48
bytes contain the normal and the points of the triangle corresponding to the STL specification.
The remaining 2 byte are reserved for future use within the STL specification, but the
interpretation of this information is undefined (normally this value should be set to zero). This
undefined attribute area is used within the color addition to store the color information for every
triangle. The following method is used by VisCAM RP as default:
STL colour extension from A.F. van der Geest:
For every triangle the colour information
is described in the attribute count (16 bits).
bit 15 always 1 (to distinguish from normal stl files)
bit 10 to 14 intensity level for red (0 to 31)
bit 5 to 9 intensity level for green (0 to 31)
bit 0 to 4 intensity level for blue (0 to 31)
INFO: This option is only available if VisCAM Solid Painter is included.
Write VRML 2.0 format (VRML97): If selected VRML files are saved using version 2.0 (often
called VRML 97). This is the default case. If this option is unselected VRML files are saved using
version 1.0.
Write VRML with only one color per shape: Within the VRML file color information is stored
using different ways. The simplest form is to store the material color per shape (Shape
Appearance). This needs all triangles of a shape to have the same color.
The more effective method is to use color tables (Color Index), where every triangle of a shape
can be assigned a different color. But VRML color tables are not supported by all VRML
interfaces.
If this options is selected, models that contain differently colored triangles are split into multiple
parts and saved as separate objects. So for every triangle color within the model a separate
object is created within the VRML file.
When reading objects the have been split VisCAM RP generates a separate part for every object.
So the model may contain unmatched edges, even though it has been closed correctly before
saving. In this case the function Match edges has to be called to remerge the separate parts of
the model.
INFO: This option is only available if VisCAM Solid Painter is included.
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