old_contents: '''
      Renders a traingle that has all RGB combinations
  '''
  
  import numpy as np
  
  from ported._example import Example
  
  
  class SimpleColorTriangle(Example):
      gl_version = (3, 3)
      aspect_ratio = 16 / 9
      title = "Simple Color Triangle"
  
      def __init__(self, **kwargs):
          super().__init__(**kwargs)
  
          self.prog = self.ctx.program(
              vertex_shader='''
                  #version 330
  
                  in vec2 in_vert;
  
                  in vec3 in_color;
                  out vec3 v_color;    // Goes to the fragment shader
  
                  void main() {
                      gl_Position = vec4(in_vert, 0.0, 1.0);
                      v_color = in_color;
                  }
              ''',
              fragment_shader='''
                  #version 330
  
                  in vec3 v_color;
                  out vec4 f_color;
  
                  void main() {
                      // We're not interested in changing the alpha value
                      f_color = vec4(v_color, 1.0);
                  }
              ''',
          )
  
          # Point coordinates are put followed by the vec3 color values
          vertices = np.array([
              # x, y, red, green, blue
              0.0, 0.8, 1.0, 0.0, 0.0,
              -0.6, -0.8, 0.0, 1.0, 0.0,
              0.6, -0.8, 0.0, 0.0, 1.0,
          ])
  
          self.vbo = self.ctx.buffer(vertices.astype('f4').tobytes())
  
          # We control the 'in_vert' and `in_color' variables
          self.vao = self.ctx.simple_vertex_array(self.prog, self.vbo, 'in_vert', 'in_color')
  
      def render(self, time: float, frame_time: float):
          self.ctx.clear(1.0, 1.0, 1.0)
          self.vao.render()
  
  
  if __name__ == '__main__':
      SimpleColorTriangle.run()
  
new_contents: '''
      Renders a traingle that has all RGB combinations
  '''
  
  import numpy as np
  
  from ported._example import Example
  
  
  class SimpleColorTriangle(Example):
      gl_version = (3, 3)
      aspect_ratio = 16 / 9
      title = "Simple Color Triangle"
  
      def __init__(self, **kwargs):
          super().__init__(**kwargs)
  
          self.prog = self.ctx.program(
              vertex_shader='''
                  #version 330
  
                  in vec2 in_vert;
  
                  in vec3 in_color;
                  out vec3 v_color;    // Goes to the fragment shader
  
                  void main() {
                      gl_Position = vec4(in_vert, 0.0, 1.0);
                      v_color = in_color;
                  }
              ''',
              fragment_shader='''
                  #version 330
  
                  in vec3 v_color;
                  out vec4 f_color;
  
                  void main() {
                      // We're not interested in changing the alpha value
                      f_color = vec4(v_color, 1.0);
                  }
              ''',
          )
  
          # Point coordinates are put followed by the vec3 color values
          vertices = np.array([
              # x, y, red, green, blue
              0.0, 0.8, 1.0, 0.0, 0.0,
              -0.6, -0.8, 0.0, 1.0, 0.0,
              0.6, -0.8, 0.0, 0.0, 1.0,
          ], dtype='f4')
  
          self.vbo = self.ctx.buffer(vertices)
  
          # We control the 'in_vert' and `in_color' variables
          self.vao = self.ctx.simple_vertex_array(self.prog, self.vbo, 'in_vert', 'in_color')
  
      def render(self, time: float, frame_time: float):
          self.ctx.clear(1.0, 1.0, 1.0)
          self.vao.render()
  
  
  if __name__ == '__main__':
      SimpleColorTriangle.run()
  
subject: Update basic_simple_color_triangle.py