Roadmap (or todo)

[ly29]

The system is basically working now. As #7 is closed it is time to look forward a bit. All of these deserves their own issues.

• [x] Type casting #15
• [ ] Numpy Broadcasting #15
• [x] properties in nodes, #17
• [ ] mode switches and signature changes #18
• [ ] variable amount of inputs
• [x] input nodes #19
• [ ] Node groups. think of them as functions/ blocks
• [ ] using node groups
• [ ] Nodes, mostly focusing on simple nodes of different categories.
• [ ] Refactoring of execution system
• [ ] List operations
• [ ] OpenGL viewer #16 - Tutorial, 2
• [ ] OpenGl data viewer #16

[ly29]

To test. Testing, easiest is to use git and then create a symlink in the addons folder pointing to the SverchokRedux folder. There isn't much to do yet with the system.

[nortikin]

but it not installing error in importing core/execute and compiler items from the same folder

PS

same problem was in initial Sverchok with dot import. dont remember how we solved

[nortikin]

  File "/home/ololo/.config/blender/2.76/scripts/addons/SverchokRedux/core/compiler.py", line 1, in <module>
    from SverchokRedux.core.execute import GraphNode
  File "/home/ololo/.config/blender/2.76/scripts/addons/SverchokRedux/core/execute.py", line 3, in <module>
    from SverchokRedux.core.compiler import create_graph
ImportError: cannot import name 'create_graph'

[nortikin]

maybe

sys.modules["SverchokRedux"] = sys.modules[__name__]

please register in paths

[ly29]

Ahh, will take of that, it seems does errors don't appear on reloading after doing the changes.

[ly29]

Should work now

[ly29]

I won't mess with the sys.modules again, I think a better distribution system is in order

[ly29]

Tried to play a bit with opengl, but all the new functions where ´´´None´´´ in the bgl module. Didn't have time to look into that... @zeffii Any idea?

[zeffii]

I'll make time to check the bgl stuff :) haven' looked at new functions yet

[ly29]

It is nifty, you give open gl vertices either as ordered triangles or as verts and topology. From a silly amount of function calls it becomes just a few. And then a shader programs paints it. We will need a good way to triangulate though.

[ly29]

And giving means passing a memory buffer in one call.

[ly29]

Oh, I just did something stupid, now the functions show up.

[zeffii]

got any code to experiment with?

[zeffii]

@ly29 i know it's probably only cosmetic.. and your code isn't in a final state but I do read the code. And am wondering: https://gist.github.com/zeffii/7979b80c1dd61d3028c3 if that might have any effect on speed

[ly29]

@zeffii Working on OpenGL code.

Yeah, thumbs from me about that change. Even thinking about turning it into a named tuple/class for easer use, for the links and the node. all the lookups are getting my nerves.

Link = namedtuple("Link", ["from_node", "from_socket", "to_node","to_socket"])

[ly29]

or even the shorter forms.

[zeffii]

ideasman42 expressed an unfavourable opinion about the speed and implementation of namedtuple, quite some time ago -- i'm not sure if it is relevant here: http://blenderscripting.blogspot.nl/search/label/namedtuple

[ly29]

well if turns out to be a problem we can shift it along those lines. easy enough to do, the main thing I want is the interface of not having to look up things.

node=nodes[name]
node["bl_idname"]
# vs
node.bl_idname
# etc

[zeffii]

yeah, massive headache those " " all the time. I agree.

[ly29]

I tried to, but I think I get the theory of the more modern open gl but the specifics are bit new. A working piece of code would nice. Will hold of a bit with it.

[ly29]

Red book

[ly29]

@zeffii

import bgl
bgl.glGenVertexArrays is None

is also true for you?

[zeffii]

>>> bgl.glGenVertexArrays()
Traceback (most recent call last):
  File "<blender_console>", line 1, in <module>
TypeError: function takes exactly 2 arguments (0 given)

[zeffii]

I don't think it's supposed to have any explicit return value, except None

[zeffii]

I am interested to see what the bgl equivalent of https://gist.github.com/zeffii/131fb3a0f6fc3ca117fb is

[zeffii]

see https://github.com/Sverchok/SverchokRedux/issues/16 for bgl talk

[ly29]

A bit of a break, will be quite busy the next couple of days. Will try to advance a bit here and there anyway.

[ly29]

Update

So right now everything is kind broken, will focus on getting it to run again with consequences of the new type system. But will be day or two before I can do that.