POV-Ray : Newsgroups : povray.news-submissions : LionSnake 1.7 now Available Server Time
26 Feb 2024 03:41:42 EST (-0500)
  LionSnake 1.7 now Available (Message 1 to 1 of 1)  
From: John VanSickle
Subject: LionSnake 1.7 now Available
Date: 25 Feb 2008 19:56:10
Message: <47c363aa@news.povray.org>
Version 1.7 of the LionSnake modeler is now available for download at:


Changes since the last version include:

# LionSnake now supports faces with more than four sides. The limit now 
is 32,767 sides per face. If you try to exceed that, I can't be held 
# LionSnake can now import and export Alias/Wavefront .obj and .mtl 
files. Presently edge sharpness is not saved in the files, but the face 
grouping assignment is. I was considering making this the primary file 
format, but it does not support all of the features that I wanted, so I 
stayed with my own format with the .lsm extension.
# A bug with the mouse mode was causing crashes after a certain number 
of undo and redo operations. Fixed.
# When a Bone with dependent Bones or Vertices is deleted, a 
confirmation dialog box now appears, and among other things lets you 
specify whether to make the dependent items non-dependent, make them 
dependent on the deleted Bone's parent (if any), or to cancel the 
deletion altogether.
# You can select all of a continuous section of mesh at once, by 
selecting that operation from the context menu for any vertex, edge, or 
face in the desired section.
# The display of the axes is now more consistent.
# The subdivision preview is no longer as smooth as it once was. I hope 
to get it back to something nice (and, hopefully, better) soon.
# The default color for faces is now a full white (<255,255,255>), 
instead of the medium-light gray (<160,160,160>) used before. This was 
done because the default color for Alias/Wavefront objects is white.
# Performance is now vastly improved for large meshes. There was an 
O(N^2) situation that came up with file loading and mesh validation. 
This caused some meshes to take a long time (two minutes or more) to 
load from file or make any edit to the mesh topography. Fixed.
# Mesh selection is more consistent as well. You can select mesh 
portions by selecting vertices, edges, or faces.
# The POV-Ray macros have been replaced with a new set, based on the 
Catmull-Clark subdivision scheme. The names of the files have been 
changed (they start with c2s3 instead of the former nsss) so that using 
the new macro suite won't overwrite older work.
# And nobody cares, but all of the C-style malloc(), calloc(), and 
free() calls have been replaced with C++ equivalent (new and delete) 
# And some of you may care that the header files in the source code have 
been rearranged from their former evil state to something that is easier 
to follow; the crazy way of nesting them has been replaced with 
something more sensible.
# Furthermore, the sources have been re-arranged. With some exceptions, 
all of the member functions for the Model class are now in files named 
model_*.cpp, where the * stands for the first letter of the function 
name. There are now more source files, but they are now mostly smaller, 
and it's easier to find a function in the source files.
# And to make things easier for any masochist who wants to port this to 
Mac or Linux (and to eliminate a global variable to track an end-of-file 
condition), I have encapsulated the code for reading and writing files 
into a set of file handling classes. I developed my own set of classes 
instead of using the standard library streaming operators, because at 
least on my compiler those things are bloated.


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