{
  "context": "This criteria evaluates how well the engineer uses the gl package's viewport and scissor configuration capabilities to implement a multi-region renderer. The focus is on correct usage of gl.viewport(), gl.scissor(), and gl.enable(gl.SCISSOR_TEST) to achieve region isolation and clipping.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "WebGL Context Creation",
      "description": "Uses gl package's createContext() function to create a WebGL rendering context with the specified dimensions (800x600)",
      "max_score": 15
    },
    {
      "name": "Viewport Configuration",
      "description": "Uses gl.viewport() to set the rendering viewport to match the active region coordinates and dimensions",
      "max_score": 25
    },
    {
      "name": "Scissor Test Enable",
      "description": "Uses gl.enable(gl.SCISSOR_TEST) to enable scissor testing for region clipping",
      "max_score": 20
    },
    {
      "name": "Scissor Box Configuration",
      "description": "Uses gl.scissor() to configure the scissor box to match the active region, ensuring content is clipped to region boundaries",
      "max_score": 25
    },
    {
      "name": "Pixel Reading",
      "description": "Uses gl.readPixels() to extract rendered pixel data from the framebuffer in the correct format",
      "max_score": 10
    },
    {
      "name": "Context Cleanup",
      "description": "Uses gl.getExtension('STACKGL_destroy_context') and ext.destroy() to properly clean up WebGL context and release resources",
      "max_score": 5
    }
  ]
}