examples/opengl/vertexarray.py

   1 #!/usr/bin/python\r
   2 # coding: utf-8\r
   3 \r
   4 from OpenGL.GL import *\r
   5 \r
   6 '''\r
   7 頂点配列\r
   8 \r
   9 ====\r
  10 属性\r
  11 ====\r
  12 * 位置\r
  13 '''\r
  14 class VertexArray(object):\r
  15     def __init__(self, vertices):\r
  16         self.vertices=vertices\r
  17 \r
  18     def __str__(self):\r
  19         return "<VertexArray %d>" % len(self.vertices)\r
  20 \r
  21     def draw(self):\r
  22         # 位置属性\r
  23         glEnableClientState(GL_VERTEX_ARRAY)\r
  24         glVertexPointer(3, GL_FLOAT, 0, self.vertices)\r
  25         # 描画\r
  26         glDrawArrays(GL_TRIANGLES, 0, len(self.vertices))\r
  27         # 後始末\r
  28         glDisableClientState(GL_VERTEX_ARRAY)\r
  29 \r
  30 \r
  31 \r
  32 '''\r
  33 頂点配列\r
  34 \r
  35 ====\r
  36 属性\r
  37 ====\r
  38 * 位置\r
  39 * UV\r
  40 '''\r
  41 class VertexArrayWithUV(object):\r
  42     def __init__(self, vertices, uvarray):\r
  43         self.vertices=vertices\r
  44         self.uvarray=uvarray\r
  45 \r
  46     def __str__(self):\r
  47         return "<VertexArrayWithUV %d>" % len(self.vertices)\r
  48 \r
  49     def draw(self):\r
  50         # 位置属性\r
  51         glEnableClientState(GL_VERTEX_ARRAY)\r
  52         glVertexPointer(3, GL_FLOAT, 0, self.vertices)\r
  53         # UV属性\r
  54         glEnableClientState(GL_TEXTURE_COORD_ARRAY)\r
  55         glTexCoordPointer(2, GL_FLOAT, 0, self.uvarray)\r
  56         # 描画\r
  57         triangle_count=int(len(self.vertices)/3)\r
  58         glDrawArrays(GL_TRIANGLES, 0, triangle_count)\r
  59         # 後始末\r
  60         glDisableClientState(GL_TEXTURE_COORD_ARRAY)\r
  61         glDisableClientState(GL_VERTEX_ARRAY)\r
  62 \r
  63 \r
  64 '''\r
  65 インデックス参照頂点配列\r
  66 \r
  67 ====\r
  68 属性\r
  69 ====\r
  70 * 位置\r
  71 '''\r
  72 class IndexedVertexArray(object):\r
  73     def __init__(self, vertices, indices):\r
  74         self.vertices=vertices\r
  75         self.indices=indices\r
  76 \r
  77     def draw(self):\r
  78         # 位置属性\r
  79         glEnableClientState(GL_VERTEX_ARRAY)\r
  80         glVertexPointer(3, GL_FLOAT, 0, self.vertices)\r
  81         # indexによる描画\r
  82         glDrawElements(GL_TRIANGLES, len(self.indices),\r
  83                 GL_UNSIGNED_INT, self.indices)\r
  84         # 後始末\r
  85         glDisableClientState(GL_VERTEX_ARRAY)\r
  86 \r
  87 \r
  88 '''\r
  89 インデックス参照頂点配列\r
  90 \r
  91 ====\r
  92 属性\r
  93 ====\r
  94 * 位置\r
  95 * 色\r
  96 '''\r
  97 class IndexedVertexArrayWithColor(object):\r
  98     def __init__(self, vertices, colors, indices):\r
  99         self.vertices=vertices\r
 100         self.colors=colors\r
 101         self.indices=indices\r
 102 \r
 103     def draw(self):\r
 104         # 位置属性\r
 105         glEnableClientState(GL_VERTEX_ARRAY)\r
 106         glVertexPointer(3, GL_FLOAT, 0, self.vertices)\r
 107         # 色属性\r
 108         glEnableClientState(GL_COLOR_ARRAY)\r
 109         glColorPointer(3, GL_FLOAT, 0, self.colors)\r
 110         # indexによる描画\r
 111         glDrawElements(GL_TRIANGLES, len(self.indices),\r
 112                 GL_UNSIGNED_INT, self.indices)\r
 113         # 後始末\r
 114         glDisableClientState(GL_COLOR_ARRAY)\r
 115         glDisableClientState(GL_VERTEX_ARRAY)\r
 116 \r