Volume Rendering of an MRI angiography dataset. In the material properties you can adjust the transfer function for color and transparency points that transform the MRI intensities into color and transparency. Volume rendering is realized with a special fragment shader that performs a ray cast through the MRI volume.

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General help:

Click and drag the left mouse button to rotate the scene.
Click and drag the middle mouse button to move sidewards/up-down.
Roll the mouse-wheel to move forward/backward.
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Click the right mouse button to open the context menu.
Open and dock additional windows from the menu Infos.
See more example scenes over the menu File > Load Test Scene