"""
Prepare viewport
"""
import platform
from OpenGL.raw.GL.VERSION.GL_1_0 import (
GL_COLOR_BUFFER_BIT,
GL_DEPTH_BUFFER_BIT,
GL_DEPTH_TEST,
glClear,
glClearColor,
glEnable,
glViewport,
)
from OpenGL.raw.GL.VERSION.GL_3_2 import GL_PROGRAM_POINT_SIZE
[docs]
def prepare_viewport(width: int, height: int) -> None:
"""
prepare
:param width: int
:param height: int
:return: None
Prepares an OpenGL Frame Viewport
"""
if platform.system() == "Darwin":
dpr = 2 # macOS Retina displays
else:
dpr = 1
glViewport(0, 0, width * dpr, height * dpr)
glEnable(GL_DEPTH_TEST)
glClearColor(0.1, 0.1, 0.1, 1.0)
glEnable(GL_PROGRAM_POINT_SIZE)
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)