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Unwrapping - TC Surface

Owned by Brian Carter (Unlicensed)
Last updated: Jan 29, 2014
2 min read


Specify method for the UV parametrization

Projection - In this case for the UV parametrization of each facet the coordinates are projected on a certain plane

Use current UV data - In this case it is used the texture coordinates which are already set. This method can be useful for the models which come from other programs, where the texture coordinates were set (on the picture below it is possible to see the example for the model from SketchUP).

 

LSCM (Triangles) (Available in TurboCAD Pro Platinum Only) - Least Squares Conformal Maps is a more complex algorithm, which allows us to receive better unwrapping results. There is one important restriction for the current implementation of this algorithm, namely all facets must be triangles.

For example, this segment has facets which are practically orthogonal to each other

 

The result is as follows with the Projection method.

However, with LSCM the following results will occur.

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Specify the projection direction for UV parametrization 

Note: This option is valid only for the Projection method.

 

Automatic - In this case the direction of the projection is chosen automatically by the program.

X-axis - In this case as a projection direction the X – axis of the current workplane is used.

Y-axis - In this case as a projection direction the Y – axis of the current workplane is used.

Z-axis - In this case as a projection direction the Z – axis of the current workplane is used.

Specify the parameters direction for UV parametrization

Fix self-intersections in 2D parts - This option affects the presence of self-intersecting facets in 2D parts. This can lead to artifacts in rendering. When this option is enabled, during unwrapping presence of self-intersections is checked, and an attempt of resegmentation is made with the purpose to remove self-intersections. This procedure may take a few iterations and considerable time but it is recommended for the complex bodies.

When Unchecked (option is disabled)
 
 When Checked (option is enabled)

Remove holes in 2D parts - When this option is enabled, an attempt to merge the large and small 2D parts will be made. It will require to reduce the number of small 2D parts.

Note: This option is valid only for the Projection method.

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