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BIF_gl.h and BIF_glutil.h)
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bad level calls. (which is not finished at all)
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Bugfix (hopefully) for missing strands on render bug, probably related
to preview render.
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============================
- Strand render now has options to remove child strands as
the object's faces becomes smaller, in the Simplification
particle panel.
- "Reference Size" is the approximate size of the object on
screen, after which simplification starts.
- "Rate" is how fast strands are removed.
- "Transition" is the percentage of strands being faded out as
they are removed.
- Another "Viewport" option removes strands on faces that are
outside of the viewport. "Rate" again controls how fast these
are removed.
- Strand render in Blender Units now has an adjustable minimum
width. Below this minimum width, strands start fading out
instead of getting smaller.
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=========
- The render and realtime button for the particle system modifier
and the enabled button for particles now work seperate again,
made a bad design decision to tie them together. Now with only
the render button and not realtime enabled it renders.
- Fix for bug #7948: particle mode crash while constraining axis.
- Fix for bug #7945: crash loading effector groups from an old file.
- Fix for bug #7942: crash for reactor particles emitting from particles.
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This commit should fix the error. dm was used before being check if it was NULL.
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Fix for bug #7878: particle panels do not update properly when
chaning particle types.
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not mirrored exactly, though the problem is not completely solved.
The way local frames are computed for particles is still not fully
symmetric, which shows especially on long hairs...
Also made the shift+o subsurf switch work recursively into
dupli-groups, did only the first level before.
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- Disabled particle modifiers in particle mode.
- Particle col option without material.
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=========
- Normalize strand coordinates over the length of the strand, not
cut off when with e.g. length texture control.
- Weight paint and particle mode x-mirror now works with deformation
and shape keys active.
- X-ray is now disabled in particle mode, messed up depth tests.
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- Added texture control for child particle roughness.
- Fix some use of uninitialized variables in particle texture code.
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- Texture orco coordinates for particles are now actual orcos instead
of just the vertex positions, which means they are the same under
deformations and the same as the ones on the mesh.
- Particle distribution now uses these orcos to get consistent
distributions independent of deformation.
- This required changing the way orco's are computed for meshes. Now
instead of generating an orco derivedmesh separately, the derivedmesh
is generated alongside the regular one and stored in an orco custom
data layer.
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- Fix crash in particle transform with the particle system not editable.
- Particle child distribution and caching is now multithreaded.
- Child particles now have a separate Render Amount next to the existing
Amount. The render amount particles are now only distributed and cached
at render time, which should make editing with child particles faster.
- Two new options for diffuse strand shading:
- Surface Diffuse: computes the strand normal taking the normal at
the surface into account.
- Blending Distance: the distance in Blender units over which to
blend in the normal at the surface.
- Special strand rendering for more memory efficient and faster hair and
grass. This is a work in progress, and has a number of known issues,
don't report bugs to me for this feature yet.
More info:
http://www.blender.org/development/current-projects/changes-since-244/particles/
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- Fix for bug in emission from vertices.
- Fix for undo/redo refresh glitch.
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- Fix crash with the cut tool and child particle drawing.
- Make the "Col" option to use material colors work for
the path/hair visualisation type.
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- Fix for bug #7840: adding particle system to nurbs, curves crashes.
Now simply doesn't allow to add a particle system to a non-mesh
object, the current code does not support it.
- Fix for bug #7834: deleting vertices of an object with a particle
system crashes. Fixed by disabling particle display for objects in
editmode.
- Fix for the particle add brush on subsurfed objects.
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=========
Merge of the famous particle patch by Janne Karhu, a full rewrite
of the Blender particle system. This includes:
- Emitter, Hair and Reactor particle types.
- Newtonian, Keyed and Boids physics.
- Various particle visualisation and rendering types.
- Vertex group and texture control for various properties.
- Interpolated child particles from parents.
- Hair editing with combing, growing, cutting, .. .
- Explode modifier.
- Harmonic, Magnetic fields, and multiple falloff types.
.. and lots of other things, some more info is here:
http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite
http://wiki.blender.org/index.php/BlenderDev/Particles_Rewrite_Doc
The new particle system cannot be backwards compatible. Old particle
systems are being converted to the new system, but will require
tweaking to get them looking the same as before.
Point Cache
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The new system to replace manual baking, based on automatic caching
on disk. This is currently used by softbodies and the particle system.
See the Cache API section on:
http://wiki.blender.org/index.php/BlenderDev/PhysicsSprint
Documentation
=============
These new features still need good docs for the release logs, help
for this is appreciated.
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