Added remove doubles as a keyword option,
Fixed Triangulate (need to select the faces first)
Fixed boundry weighting (defaults reduced boundries first more then
non boundry verts!)
Made face area weighting give better results.
Workaround for a problem where badly predicted positions are further then half the edge length, on these cases just collapse to the weighted middle of teh edge.
Added docs for "PolyReduce" (Uses BPyMesh_Redux) and WIP Docs for AutoTex Layout.
http://mediawiki.blender.org/index.php/Manual/PartXIII/Modelling_Scripts
for export depending on whether the object containing the data has
modifiers or not. For an object without modifiers, things are nice since
the mesh can be properly instanced and reused. For an object with
modifiers there are problems, since a new Mesh has to be created,
akin to doing an Alt-C on the mesh, and we end up using more memory
after the use of the script than we used beforehand. (I wonder if
I would be better off porting the thing to C.)
This script makes a new image from the used areas of all the images mapped to the selected mesh objects.
Image are packed into 1 new image that is assigned to the original faces.
This is usefull for game models where 1 image is faster then many, and saves the labour of manual texture layout in an image editor.
- Realy needs an image example to see why this is usefull.
* a misuse of the Mesh module meant that I kept creating new
meshes each time the script was run;
* the commas in the vertex color export looked weird.
Changes include, but may not be limited to:
* Support for meshes with multiple materials/face images
* Mode modular design that more closely reflects Blender's
internal workings
* Position, scale, and orientations are now exclusively dealt
with in Transform nodes, making the math more unified and
way easier to understand.
* vertex colors either written when mesh has SHARED_COL
face property, or when mesh has vertex colors and
first material with VCOL_PAINT (a little crufty, but
maybe will try a better way later)
* Support for debugging output to the console by setting
the 'rt' button to 42 (for mild verbosity) or 43 (for more
verbosity)
* Potentially long lists like vertex coordinates, face indices,
etc. are now unindented (why potentially waste thousands of
tab characters?)
* All lines in the script are under 79 characters (as per the
python style guide).
A major revision will usually beget major bugs, so
please test, test, test to make sure I haven't broken your favorite
feature in this script! (I've done a number of tests loading
output into the Bitmanagement viewer and into 3DSMax.)
~20% faster and memory saved by re-using the face and edge lists and their classes each pass rather then __init__'ing new ones.
Stupid mistake- was only collapsing edges with UV's
Added support for "Weighted Collapse" Before an edge could only collapse into its middle,
Now the edge collapses into a point bias'd by the 2 verts Concave/Convec "Pointyness" value as well as boundry weighting.
This works much better for boundry verts. - UV's Vcols and Weights are correctly interpolated into the new location.
Added a tool in the mesh menu for accessing the poly reduction tool.
fixed some bugs in BPyMesh_redux, tweaked to work well for test cases. much better use of error levels for edge weighting. better collapsing to the desired target. triangulates before reduction be default now.
* Much improved, slower edge collapse weighting method that makes this script about 2.5x slower, but brings it up to the quality of qslim (lightwave's decimator), without the manifold' errors.
Probably worth adding a UI front end to this function.
You can grag the keyframes around from anywhere in the animation.
Keyframe dragging would be less of a hack if we could do an event handeler and a redraw space handeler in 1.
This kind of functionality could be nice to see in Blender.
vertex it would potentially loop through every face). This fix speeds
it up a bit (only loops through all faces once, at the cost of some
additional memory). An example of export times for a mesh with 6266
verts and 12528 faces:
Before: 2m56s
After: 8s
Isnt intended to be ultra high quality, more for automatic realtime "Level of Detail" model generation.
BPyMesh.redux(ob, 0.5) # To reduce to about half the polys
renamed meshPrettyNormals to meshCalcNormals, and it now writes to normals rather then returning a list of vecs.
updated vertexpaint_selfshadow_ao to be a bit more efficient and make use of the above changes.
* clean weights (removed low weights)
* normalize, maximizes weights to a user set peak, optionaly scales other groups too to keep the proportion of the weights even. (Doubles as a weight scaler)
* Grow/Shrink, uses the mesh topology to expand/contract the vert weights. a few options for iterationsm, max length and strength.
I need a way tell if the users in Face Select mode (in python) so I can make use of the selected face flag.
Will need to do some updates, Mesh over NMesh and optimize some areas but it works and is a big improvement.
from
https://projects.blender.org/tracker/index.php?func=detail&aid=4156&group_id=9&atid=127
Detailed description:
Modified the 3ds export script 3ds_export.py:
- It now exports face UV correctly. 3ds only supports one UV coordinate per vertex. The script now duplicates vertices that had multiple UV pairs assigned to them so that each duplicate now only contains one and only one UV. Faces have their vertex indices adjusted accordingly.
- Quads are now split into triangles better. 3ds only supports triangles, so quads need to be split into two triangles. Instead of rather arbitrarily splitting along the diagonal between points 0 and 2, the script now splits along the shortest diagonal. This creates a higher quality triangular mesh, as well as better preservation of symmetry.
- Now creates an object node block, exporting object nodes, needed by some 3D importers. Among others, allows one to export object hierarchy.
- Now exports Empties as 3ds Dummies.
To be able to add all of the above new features, the script has been mostly rewritten and strongly restructured.
Motivation for the rewrite was the desire to be able to use Blender to produce custom 3d cars for Trackmania:Sunrise (TM:S). Previously, the TM:S importer could not correctly handle the 3ds files from the Blender 3ds export script. With this version, one can export cars complete with UV textures, correct wheel placement and light placement. To my knowledge, this script would make Blender the first fully free 3d modeller that allows one to export 3ds models for TM:S (expect a tutorial soon). The ability to have proper UV coordinates exported into the 3ds file should also be very welcome to many.
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