在Ruby中绘制点和矩形

require 'OpenGL'

# 创建一个 OpenGL 渲染器
render = OpenGL::render.new(width: 320, height: 240)

# 创建一个颜色缓冲区
color_buffer = render.create_color_buffer(width: 320, height: 240)

# 绘制点
render.set_color_buffer(color_buffer)
render.gl_draw_point(x: 10, y: 10, z: 0)
render.gl_draw_point(x: 100, y: 100, z: 0)
render.gl_draw_point(x: 10, y: 110, z: 1)
render.gl_draw_point(x: 100, y: 110, z: 1)

# 渲染场景
render.display()

require 'OpenGL'

# 创建一个 OpenGL 渲染器
render = OpenGL::render.new(width: 320, height: 240)

# 创建一个颜色缓冲区
color_buffer = render.create_color_buffer(width: 320, height: 240)

# 绘制矩形
render.set_color_buffer(color_buffer)
render.gl_draw_rectangle(x: 10, y: 10, width: 100, height: 100)
render.gl_draw_rectangle(x: 110, y: 110, width: 100, height: 100)

# 渲染场景
render.display()