Hey,
Someone asked to make the “build” modifier work in the BGE.
Well, I thought I would try and make something silly this Saturday, so here it is:
https://drive.google.com/open?id=0B_vMzUtLDf7VQXRnZGo2bmhXZkE
The script can be used for multiple objects or so, just make sure to call “Build.start” in a Python controller in module mode, and use a little bit of nodes to get the vertex alpha value to work correctly.
Supported modes: build, decimate.
Nothing much serious really.
Good job, man!
And can you make in the properties of the object another parameter - the direction (False, True)? To change - whether the object disappears, or appears.
Thank you for attention.
Ok, added !
Just add a build.mode string property, switch it to either build or decimate, and there you go !
You can also modify a bit the script so that you can add more modes.
Very cool. Would it be possible to specify the pattern, eg from bottom to top?
if VList not in own:
VList =[]
for vert_index in range(obj.meshes[0].getVertexArrayLength(0)):
VList.append(vert_index)
own['VList']=VList
owb['running'] =[]
else:
popList =[]
for vert_index in own['VList']:
vert = obj.meshes[0].getVertex(0,vertex_index)
if obj.worldTransform*vert.xyz.z <own['floor']:
own['running'].append(vert)
pop2=[]
index =[]
for vert in own['running']:
if vert.color[3] < .95:
vert.color[3]+=.05
else:
pop2.append(index)
still missing a bit* will finish when I get a chance.
Pretty cool BPR, but once you move your cube up or down the system falls apart 
yeah swap to local position from object data node
That’s a bit more than just “switching to object local space” lol
Anyway, this effect is pretty damn cool ! But at this point you would better write your own GLSL material shader I think 
It would be easier to export, you could also get rid of animation key frames on the obj color (using uniform variables), and might even be compatible with vanilla BGE !
Either it doesn’t work on me, or I don’t know how to use it
it’s likely a bge / upbge thing
bge does not have the object color data node
Actually it has as far as I understood. I just animated the object color change and made it run in BGE. It did play the action.
Unless I misunderstood something
you don’t have access to object color node in the node editor though or the time node… making animation inconvenient as you have no uniforms to drive them
Then explain these:
And in case those didn’t clearify:
ColorBoxBGE.blend (419.1 KB)
(made in Blender 2.78c)
That is an animation, yes you can animate object color or change it with python.
Now open the node editor and try the same thing.
