Esempio n. 1
0
File: paths.py Progetto: shans/togra
 def run(this, points):
   points = points.getNext().values
   size = len(points)
   scales = binomials(size)
   out = Group()
   for i in range(this.numPoints):
     t = i / (this.numPoints - 1.0)
     tt = 1 - t
     pos = [0, 0, 0]
     tan = [0, 0, 0]
     for j in range(size):
       top = size - j - 1
       scale = scales[j] * math.pow(t, j) * math.pow(tt, top)
       tanScale = 0
       if j > 0:
         tanScale += j * math.pow(t, j - 1) * math.pow(tt, top)
       if j < size - 1:
         tanScale += (size - j - 1) * math.pow(t, j) * math.pow(tt, top - 1)
       tanScale *= scales[j]
       pos = [pos[0] + scale * points[j][0], pos[1] + scale * points[j][1],
              pos[2] + scale * points[j][2]]
       tan = [tan[0] + tanScale * points[j][0], 
              tan[1] + tanScale * points[j][1],
              tan[2] + tanScale * points[j][2]]
     out.addVector(pos)
     out.addTangent(tan)
   return out
Esempio n. 2
0
  def run(this, frames):
    if this.lastFrame is None:
      this.lastFrame = frames.getNext()
    thisFrame = frames.getNext()
    out = Group()
    for i in range(min(len(thisFrame.values), len(this.lastFrame.values))) + [0]:
      out.addVector(this.lastFrame.values[i])
      out.addNormal(this.lastFrame.values[i])
      out.addVector(thisFrame.values[i])
      out.addNormal(thisFrame.values[i])

    this.lastFrame = thisFrame
    return out
Esempio n. 3
0
  def run(this):
    out = Group()
    out.addVector((0.5, 0.5, 0.5))
    out.addVector((-0.5, 0.5, 0.5))
    out.addVector((-0.5, -0.5, 0.5))
    out.addVector((0.5, -0.5, 0.5))
    out.addNormal((0.0, 0.0, 1.0))

    out.addVector((0.5, 0.5, -0.5))
    out.addVector((0.5, -0.5, -0.5))
    out.addVector((-0.5, -0.5, -0.5))
    out.addVector((-0.5, 0.5, -0.5))
    out.addNormal((0.0, 0.0, -1.0))
    
    out.addVector((-0.5, 0.5, -0.5))
    out.addVector((-0.5, -0.5, -0.5))
    out.addVector((-0.5, -0.5, 0.5))
    out.addVector((-0.5, 0.5, 0.5))
    out.addNormal((-1.0, 0.0, 0.0))

    out.addVector((0.5, 0.5, -0.5))
    out.addVector((0.5, 0.5, 0.5))
    out.addVector((0.5, -0.5, 0.5))
    out.addVector((0.5, -0.5, -0.5))
    out.addNormal((1.0, 0.0, 0.0))

    out.addVector((0.5, -0.5, -0.5))
    out.addVector((0.5, -0.5, 0.5))
    out.addVector((-0.5, -0.5, 0.5))
    out.addVector((-0.5, -0.5, -0.5))
    out.addNormal((0.0, -1.0, 0.0))

    out.addVector((0.5, 0.5, -0.5))
    out.addVector((-0.5, 0.5, -0.5))
    out.addVector((-0.5, 0.5, 0.5))
    out.addVector((0.5, 0.5, 0.5))
    out.addNormal((0.0, 1.0, 0.0))
    return out