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header is now by default the node type string. A custom label callback can be implemented to display more detailed information. This is currently used by group nodes, which display their internal tree name, and math, vector math, mix and filter nodes, which use their internal operation sub-type. Also the node tree selection/naming box for groups is now displayed only on open groups, to make it clearer that this is the internal type of the group and get a cleaner main tree.
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types should now use the node_type_* definition helpers to initialize their bNodeType structs.
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* Compo node backdrop works again.
* Compo node previews and backdrop now get correct color management
float to byte conversion.
* Compo nodes got unecessarily recalculated while moving nodes.
* Fix compo node viewer nodes not getting activated correctly.
* Main compo node preview render computations are now outside of
mutex lock, so better for multithreading.
* Tex node outputs did not work in some files loaded from 2.4.
* Change RNA updates to take into account groups that may be shared
between multiple node trees.
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Node/Composite tinkering:
- titles in headers and on collapsed nodes back
- backdrop option draws again (no scroll operator yet)
- added preview option in blur, filter and mix nodes.
Just for fun while working :) Probably every node
should get this...
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* Geometry node: Front/back output
This is used as a mask for determining whether you're looking at the front side or back side of a mesh, useful for blending materials, my practical need was giving different materials to the pages of a magazine: http://mke3.net/blender/etc/frontback-h264.mov
Give 1.0 if it's the front side, and 0.0 if it's the back side.
* Extended material node
This is the same as the material node, but gives more available inputs and outputs, (basically just connecting up more of ShadeInput and ShadeResult to the node). I didn't want to add it to the normal simple Material node since you don't always need all that stuff, and it would make the node huge, but when you do need it, it's nice to have it.
== Comp nodes ==
* Invert node
Inverting is something that happens all the time in a node setup, and this makes it easier. It's been possible to invert previously by adding a mix node and subtracting the input from 1.0, but it's not the best way of doing it. This node:
- makes it a lot faster to set up, rather than all the clicking required with the mix node
- is a lot more usable amidst a complex comp setup, when you're looking at a node tree, it's very helpful to be able to see at a glance what's going on. Using subtract for inverting is easily mixed up with other nodes in which you are actually subtracting, not inverting, and looks very similar to all the other mix nodes that usually litter a comp tree.
- has options to invert the RGB channels, the Alpha channel, or both. This saves adding lots of extra nodes (separate RGBA, subtract, set alpha) when you want to do something simple like invert an alpha channel. I'd like to add this option to other nodes too.
There's also a shader node version too.
* Also a few fixes that I committed ages ago, but seems to have been overwritten in Bob's node refactor:
- adding new compbufs to the set alpha and alphaover nodes when you have only one noodle connected to the lower input
- making the fac value on RGB curves still work when there's nothing connected to it
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* refactor copying and freeing of node->storage by handlerizing them.
- freestoragefunc
- copystoragefunc
- node_util.c/h have generic handlers for these.
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This will allow python or plugin defined nodes to work as well.
(And fixes compile issues with MSVC in yesterdays commit for nodes)
Code provided by Nathan L.
Fixes in his code:
- free_nodesystem() was called too late (after guarded alloc was closed)
- free_nodesystem() was freeing nodes that were not malloced even
- free_nodesystem was using free, not freeN :)
- the typedefs needed to be malloced yes, to allow duplicate nodes like
group but also for dynamic nodes.
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this point. Will commit modified versions of existing files once build system is tested.
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