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# SPDX-License-Identifier: Apache-2.0
# Copyright 2018-2021 The glTF-Blender-IO authors.
import bpy
from ..com.gltf2_blender_extras import set_extras
from io_scene_gltf2.io.imp.gltf2_io_user_extensions import import_user_extensions
class BlenderCamera():
"""Blender Camera."""
def __new__(cls, *args, **kwargs):
raise RuntimeError("%s should not be instantiated" % cls)
@staticmethod
def create(gltf, vnode, camera_id):
"""Camera creation."""
pycamera = gltf.data.cameras[camera_id]
import_user_extensions('gather_import_camera_before_hook', gltf, vnode, pycamera)
if not pycamera.name:
pycamera.name = "Camera"
cam = bpy.data.cameras.new(pycamera.name)
set_extras(cam, pycamera.extras)
# Blender create a perspective camera by default
if pycamera.type == "orthographic":
cam.type = "ORTHO"
# TODO: xmag/ymag
cam.clip_start = pycamera.orthographic.znear
cam.clip_end = pycamera.orthographic.zfar
else:
cam.angle_y = pycamera.perspective.yfov
cam.lens_unit = "FOV"
cam.sensor_fit = "VERTICAL"
# TODO: fov/aspect ratio
cam.clip_start = pycamera.perspective.znear
if pycamera.perspective.zfar is not None:
cam.clip_end = pycamera.perspective.zfar
else:
# Infinite projection
cam.clip_end = 1e12 # some big number
return cam
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