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# Copyright (c) 2018 Ultimaker B.V.
# Cura is released under the terms of the LGPLv3 or higher.
import os.path
from UM.Resources import Resources
from UM.Application import Application
from UM.PluginRegistry import PluginRegistry
from UM.View.RenderPass import RenderPass
from UM.View.RenderBatch import RenderBatch
from UM.View.GL.OpenGL import OpenGL
from cura.Scene.CuraSceneNode import CuraSceneNode
from UM.Scene.Iterator.DepthFirstIterator import DepthFirstIterator
class XRayPass(RenderPass):
def __init__(self, width, height):
super().__init__("xray", width, height)
self._shader = None
self._gl = OpenGL.getInstance().getBindingsObject()
self._scene = Application.getInstance().getController().getScene()
def render(self):
if not self._shader:
self._shader = OpenGL.getInstance().createShaderProgram(Resources.getPath(Resources.Shaders, "xray.shader"))
batch = RenderBatch(self._shader, type = RenderBatch.RenderType.NoType, backface_cull = False, blend_mode = RenderBatch.BlendMode.Additive)
for node in DepthFirstIterator(self._scene.getRoot()):
if isinstance(node, CuraSceneNode) and node.getMeshData() and node.isVisible():
batch.addItem(node.getWorldTransformation(copy = False), node.getMeshData(), normal_transformation=node.getCachedNormalMatrix())
self.bind()
self._gl.glDisable(self._gl.GL_DEPTH_TEST)
batch.render(self._scene.getActiveCamera())
self._gl.glEnable(self._gl.GL_DEPTH_TEST)
self.release()
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