Blender Git Statistics -> Developers -> z0r

Alex Fraser (z0r)

Total Commits : 19
Master Commits : 18
Branch Commits : 1
First Commit : September 25, 2011
Latest Commit : February 19, 2013

Commits by Month

DateNumber of Commits
February, 20131
January, 20135
December, 20122
November, 20120
October, 20121
September, 20120
August, 20120
July, 20120
June, 20120
May, 20120
April, 20120
March, 20120
February, 20121
January, 20126
December, 20110
November, 20110
October, 20111
September, 20112

Commit Distribution

PathNumber of Commits
master18
soc-2011-cucumber1

Favourite Files

FilenameTotal Edits
particle_system.c9
rna_particle.c4
BKE_particle.h4
properties_particle.py3
GHOST_DisplayManagerX11.cpp2
readfile.c2
DNA_particle_types.h2
CMakeLists.txt2
rendercore.c2
GHOST_DisplayManagerSDL.cpp2

File Changes

ActionTotalPer Commit
Modified542.8

Code Changes

ActionTotalPer Commit
Lines Added1 52880.4
Lines Removed34418.1

Latest commits Feed

Revision 4e73ff0 by Alex Fraser (master)
February 19, 2013, 02:24 (GMT)
Fix for [#34099] Particles leaking from moving meshes

This was caused by a floating point precision error. During collision detection, Newton-Raphson iteration is used to find the exact time of the collision. But when using subframes, the initial Newton step was too small. Now the initial step is given in absolute units. When subframes = 0, this should behave almost the same as before.

Thanks to Janne Karhu, Lukas Toenne and Ton Roosendaal for their help with this patch, and to AutoCRC for funding.

Revision 55030a4 by Alex Fraser (master)
January 18, 2013, 09:19 (GMT)
Applying sRGB color space transform when baking to vertex colors. Thanks to Campbell Barton and Sergey Sharybin for their help!
Revision 17c428d by Alex Fraser (master)
January 11, 2013, 03:06 (GMT)
Changing units of stiffness parameter in classical (new) SPH solver: used to be speed of sound squared; now just speed of sound.

The classical SPH solver was not in 2.65, so this change is unlikely to affect many users. But beta users who have been trying it out will need to change the stiffness parameter to sqrt(old value).
Revision 61833dd by Alex Fraser (master)
January 11, 2013, 02:03 (GMT)
Fix own mistake in SPH solver selection. Thanks Campbell for pointing it out.
Revision 59ef68c by Alex Fraser (master)
January 8, 2013, 04:28 (GMT)
Fix for [#33788] Particles - Fluid "exploding" behavior

Particle mass was being used incorrectly by DDR solver (my fault).
Revision 5e0e62f by Alex Fraser (master)
January 2, 2013, 00:05 (GMT)
Patch [#29035] Vertex colour baking

There is a new option in the Bake panel to enable baking to vertex colors. Unlike regular baking, this mode does not require a UV map or image to bake to, however the object must have a vertex color layer.

Thanks to:
- AutoCRC for funding
- Brech van Lommel and Dalai Felinto for their initial advice on how to implement it
- Campbell Barton for helping to make this feature work with modifiers and bmesh
Revision f276b3a by Alex Fraser (master)
December 14, 2012, 04:57 (GMT)
Adding a new SPH solver that is more physically accurate. See patch #29681

http://projects.blender.org/tracker/index.php?func=detail&aid=29681&group_id=9&atid=127

The solver was mostly implemented by John Mansour at VPAC, with help from me and with funding from the AutoCRC. The SPH formulation is due to Gingold and Monaghan, and the smoothing kernel is due to Wendland.

This solver does not replace the old one; it is available as an option. Note that the new solver uses different units than the old one. The patch page has a couple of attachments that can be used to test the new solver, particularly sphclassical_dam_s0.01_grav.blend (ignore the earlier tests). The simulation in that file compares well with a physical experimental dam break; details in a paper by Changhong Hu and Makoto Sueyoshi, also referred to on that page.
Revision 9a848c1 by Alex Fraser (master)
December 12, 2012, 22:42 (GMT)
Can now set a lower bound on the number of subframes (i.e. an upper bound on the time step size) for fluid simulations. Previously, the "subframes" parameter was not available when the adaptive time step was enabled; now they can both be set. The two settings can be used together to greatly increase simulation stability.
Revision 27c4c1f by Alex Fraser (master)
October 2, 2012, 14:15 (GMT)
Added example of KX_GameObject subclassing to game engine docs.
Revision a05fdb8 by Alex Fraser (master)
February 4, 2012, 01:51 (GMT)
Fix for aliased fonts in the game engine.
- Mipmaps are generated in BLF when drawing text in-game. In that case, padding around each glyph is increased to prevent bleeding.
- Texture filtering is turned on for in-game text.
- All glyphs are now "twisted": the leading edge is brought a small distance forward, to prevent z-fighting in overlapping (kerned) glyphs. This happens both in the game engine and the rest of the UI, but should have no effect in the UI due to Z-compression in the clipping matrix.
Reviewed and approved by bdiego; see patch [#29882] in the tracker. Tested by dfelinto.

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