I’ve been working with (or trying to) meshdrawer, and I downloaded the example that I found online from here:
[url]Particles: Effects or Home-made?]
it was posted up by treeform here is the code:
"""
This example show how to use MeshDrawer to draw
on the screen in any way shape or form you want
The texture MeshDrawer takes is a plate of
for instance plate of 3 x 3 will be numberd
this way:
1 2 3
4 5 6
7 8 9
The plates are created by the create plate tool
"""
import direct.directbase.DirectStart
from pandac.PandaModules import *
from random import *
from math import *
maxParticles = 500 # max number of particle (1000) triangles we will display
by = 16 # we have a 16x16 plate texture
generator = MeshDrawer()
generator.setBudget(maxParticles)
generator.setPlateSize(by)
generatorNode = generator.getRoot()
generatorNode.reparentTo(render)
generatorNode.setDepthWrite(False)
generatorNode.setTransparency(True)
generatorNode.setTwoSided(True)
generatorNode.setTexture(loader.loadTexture("radarplate.png"))
generatorNode.setBin("fixed",0)
generatorNode.setLightOff(True)
# load some thing into our scene
base.setFrameRateMeter(True)
base.setBackgroundColor(.1,.1,.1,1)
t = loader.loadModel('teapot')
t.reparentTo(render)
t.setPos(0,0,-1)
# very usefull function
def randVec():
return Vec3(random()-.5,random()-.5,random()-.5)
seed(1988) # random seed - remove if you always want different random results
# create 100 random particles
particles = []
for i in range(100):
p = [randVec()*1, randVec()*100,randint(181,207),1,Vec4(random(),random(),random(),1)]
particles.append(p)
# create 100 random lines
lines = []
for i in range(100):
l = [randVec()*100,randVec()*100,187,.1,Vec4(random(),random(),random(),1)]
lines.append(l)
def drawtask(taks):
""" this is called every frame to regen the mesh """
t = globalClock.getFrameTime()
generator.begin(base.cam,render)
for v,pos,frame,size,color in particles:
generator.billboard(pos+v*t,frame,size*sin(t*2)+3,color)
for start,stop,frame,size,color in lines:
generator.segment(start,stop,frame,size*sin(t*2)+2,color)
generator.end()
return taks.cont
# add the draw task to be drawn every frame
taskMgr.add(drawtask, "draw task")
# run the sample
run()
however when I run it I get this error:
File “meshdrawer.py”, line 26, in
generator.setPlateSize(by)
AttributeError: ‘libpanda.MeshDrawer’ object has no attribute ‘setPlateSize’
I’ve tried searching, but have gotten almost no results, and what little I have found seems to be the result of running the program on linux or a mac, but I’m running on a windows machine, so I’m a bit confused as to what is wrong here, does anyone have any ideas?
thanks
[/url]
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