PyNodes opens up the node system in Blender to scripters and adds a number of UI-level improvements.
=== Dynamic node type registration ===
Node types can now be added at runtime, using the RNA registration mechanism from python. This enables addons such as render engines to create a complete user interface with nodes.
Examples of how such nodes can be defined can be found in my personal wiki docs atm [1] and as a script template in release/scripts/templates_py/custom_nodes.py [2].
=== Node group improvements ===
Each node editor now has a tree history of edited node groups, which allows opening and editing nested node groups. The node editor also supports pinning now, so that different spaces can be used to edit different node groups simultaneously. For more ramblings and rationale see (really old) blog post on code.blender.org [3].
The interface of node groups has been overhauled. Sockets of a node group are no longer displayed in columns on either side, but instead special input/output nodes are used to mirror group sockets inside a node tree. This solves the problem of long node lines in groups and allows more adaptable node layout. Internal sockets can be exposed from a group by either connecting to the extension sockets in input/output nodes (shown as empty circle) or by adding sockets from the node property bar in the "Interface" panel. Further details such as the socket name can also be changed there.
[1] http://wiki.blender.org/index.php/User:Phonybone/Python_Nodes
[2] http://projects.blender.org/scm/viewvc.php/trunk/blender/release/scripts/templates_py/custom_nodes.py?view=markup&root=bf-blender
[3] http://code.blender.org/index.php/2012/01/improving-node-group-interface-editing/
This makes it so sample line (for all image editor, sequencer and compositor)
displaying managed color for byte buffers as well. It was simply not implemented
before.
Resolved conflicts:
release/datafiles/startup.blend
source/blender/editors/space_nla/nla_buttons.c
Also updated source/blender/blenkernel/intern/linestyle.c as a follow-up of
recent changes for the use of bool.
alpha, added option when drawing depth to disable alpha clip override.
We use that in texture paint cursor now. Not too common but may be
useful for people dealing with cloning plugins.
Reported by kgeogeo on irc, thanks.
Zooming in on images in Image window now shows pixels again (was filtered).
Now the glaDrawPixelsTex() and glaDrawPixelsAuto() have an argument to
define if images should zoom in with linear filter, or draw pixels.
Automatic switching for drawing pixel buffers via glDrawPixels or using GPU textures
It works with a User Preference limit, in megapixels, to define whether to use
GPU or direct pixel drawing. Default is now initialized to 10 MP (4k buffers).
Especially for zooming out (draw smaller) texture drawing is much smaller. Also
Nvidia cards typically draw much faster with textures in general.
Added to node backdrop first now, the other editors follow in a next commit.
For coders: added new DNA function to initialize new struct variables, so you
don't have to sub-version files anymore.
DNA_struct_elem_find(fd->filesdna, "structname", "typename", "varname")
"filesdna" is the sdna description of the current file being versioned.
brushes, due to issues with color coded drawing or slow/buggy reading from such
a buffer on some systems.
In case multisample is enabled now, it uses an offscreen buffer for such drawing,
which is not multisampled and so should not cause issues. This does mean there is
some extra GPU memory usage when multisample is enabled, and we could optimize
triple buffer to work together here somehow to share buffers, but it's better than
having selection not working.
Dragging on toggle buttons can now be used to press multiple buttons at once, especially useful for layer and outliner buttons.
notes:
- automatically enabled for all toggle buttons
(may change this if it becomes a problem).
- only buttons of the same type are pressed
(helps avoid annoyances eg; dragging past layer buttons onto other 3d header buttons and pressing by accident).
- automatic axis locking - dragging will lock to X/Y depending on the initial drag direction,
makes swipe motions work better, especially with the outliner.
implementation details:
- may re-implement as a region handler (currently its a modal operator).
- checking buttons in-between cursor motion events could be more efficient (but currently works ok).
- button execution needs to be improved
(currently executing a button thats not under the mouse needed a workaround for passing uiHandleButtonData),
requires further changes to UI code, will do next.
Tweak for new option for Relative Bone parenting
(which transforms child object based on rest pose, so you can change bones
in editmode to define pivot)
In the original commit it was made default, but that was too invisble for
users. Now it's an option in the Make Parent menu to choose. Communicates
a new feature better.
This was caused from using theme shadow setting to clip the popups and a hard-coded value to translate the popup within screen bounds - these values should be the same.
from regular diffuse to more shiny, stone, wax, eflective, glass and two non-realistic ones.
The menu now shows it in 3 rows. I made the previews a bit smaller, 96 pixels,
like the brushes for painting.
Thanks everyone for submitting pics! I updated the credit file too, but name
from one person is missing still, will be added next.
Patch by Sergey, .blend by Thomas and some further tweaks by me.
Still to solve later: allow external engines to specify own preview .blend, for
now the code here is doing too much magic hacking on the preview scene still.
Constraints connect two rigid bodies.
Depending on which constraint is used different degrees of freedom
are limited, e.g. a hinge constraint only allows the objects to rotate
around a common axis.
Constraints are implemented as individual objects and bahave similar to
rigid bodies in terms of adding/removing/validating.
The position and orientation of the constraint object is the pivot point
of the constraint.
Constraints have their own group in the rigid body world.
To make connecting rigid bodies easier, there is a "Connect" operator that
creates an empty objects with a rigid body constraint connecting the selected
objects to active.
Currently the following constraints are implemented:
* Fixed
* Point
* Hinge
* Slider
* Piston
* Generic
Note: constraint limits aren't animatable yet).
