User Guide: Load/Save

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-The Load and Save buttons pop up a file selection window where you can read or write UVL, PLY or OBJ format files. 
-; '''UVL''' : UVLayout's own format that saves the current edit state, including which faces have been detached, dropped or flattened, and which edges have been 'C' tagged. You should use the UVL format if you're part way through flattening a mesh, and want to restart at a latter time.+== Load ==
-: UVL is the default format, so for example, if you type "fish" into the Path field, the ".uvl" extension gets added automatically and the scene is saved into "fish.uvl".+When loading OBJ or PLY files, there's a few options to choose between:
- +
-; '''OBJ''' : Use the OBJ format to export or import UVs to and from other applications. +
- +
-: To save out an OBJ file, add ".obj" to the typed in filename.+
- +
-; '''PLY''' : PLY format files are more compact than OBJ files, but few applications know about them. They're included here mainly as a link between UVLayout and CySlice.+
- +
-: To save out a PLY file, add ".ply" to the typed in filename. +
- +
-----+
- +
-When loading PLY or OBJ files, there's a few options to choose between:+
[[Image:UserGuide-LoadOptions.jpg|frame|right|]] [[Image:UserGuide-LoadOptions.jpg|frame|right|]]
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; '''Detach Flipped UVs''' : Tick this option if you want flipped polys in UV space to be detached into separate shells. ; '''Detach Flipped UVs''' : Tick this option if you want flipped polys in UV space to be detached into separate shells.
-----+== Save ==
 + 
 +When saving your work, you have a choice between three file formats; UVL, PLY or OBJ:
 + 
 +; '''UVL''' : UVLayout's own format that saves the current edit state, including which faces have been detached, dropped or flattened, and which edges have been 'C' tagged. You should use the UVL format if you're part way through flattening a mesh, and want to restart at a latter time.
 + 
 +: UVL is the default format, so for example, if you type "fish" into the Path field, the ".uvl" extension gets added automatically and the scene is saved into "fish.uvl".
 + 
 +; '''OBJ''' : Use the OBJ format to export or import UVs to and from other applications.
 + 
 +: To save out an OBJ file, add ".obj" to the typed in filename.
 + 
 +; '''PLY''' : PLY format files are more compact than OBJ files, but few applications know about them. They're included here mainly as a link between UVLayout and CySlice.
 + 
 +: To save out a PLY file, add ".ply" to the typed in filename.
 + 
 +== Update ==
The Update button pops up a file selection window where you can select a previously loaded OBJ file that you want to update with the current UVs. This preserves all the material/grouping information, where the OBJ Save leaves this information out. The Update button pops up a file selection window where you can select a previously loaded OBJ file that you want to update with the current UVs. This preserves all the material/grouping information, where the OBJ Save leaves this information out.

Revision as of 04:56, 14 November 2006

Load

When loading OBJ or PLY files, there's a few options to choose between:

SUBD / Poly 
If the mesh being loaded is the control cage for a subdivision surface, then make sure that SUBD is selected. The subdivided surface will then be used in the flattening calculations, rather than the control cage itself, producing more accurate results. If the mesh isn't a subdivision surface, then select Poly.
Edit / New 
If your mesh already has UVs and you want to reflatten them to reduce distortion, select Edit. Otherwise, select New to delete any existing UVs and start with a clean slate.
Weld UVs 
If the loaded mesh has seams (green edges) between adjacent polys, reload with this option ticked. It'll weld all co-incident UVs together, but could break the OBJ Update tool and point correspondences between morph targets.
Clean 
If the loaded mesh has non-manifold edges (i.e. an edge is shared by more than two faces) then ticking this option will fix the problem geometry as its loaded, but may break the OBJ Update tool and point correspondences between morph targets.
Detach Flipped UVs 
Tick this option if you want flipped polys in UV space to be detached into separate shells.

Save

When saving your work, you have a choice between three file formats; UVL, PLY or OBJ:

UVL 
UVLayout's own format that saves the current edit state, including which faces have been detached, dropped or flattened, and which edges have been 'C' tagged. You should use the UVL format if you're part way through flattening a mesh, and want to restart at a latter time.
UVL is the default format, so for example, if you type "fish" into the Path field, the ".uvl" extension gets added automatically and the scene is saved into "fish.uvl".
OBJ 
Use the OBJ format to export or import UVs to and from other applications.
To save out an OBJ file, add ".obj" to the typed in filename.
PLY 
PLY format files are more compact than OBJ files, but few applications know about them. They're included here mainly as a link between UVLayout and CySlice.
To save out a PLY file, add ".ply" to the typed in filename.

Update

The Update button pops up a file selection window where you can select a previously loaded OBJ file that you want to update with the current UVs. This preserves all the material/grouping information, where the OBJ Save leaves this information out.