CMI CMI Digital Media & Interactive Visualization

Question 1

In 3D medical animation, which rendering technique simulates light scattering through tissue for realistic skin appearance?

Accepted Answer

Subsurface scattering (SSS)

Answer

Flat shading

Answer

Cel shading

Answer

Ambient occlusion only

Question 2

Which file format is the standard container for 3D medical models used in interactive anatomical applications?

Accepted Answer

glTF/GLB

Answer

STL

Answer

OBJ

Answer

DXF

Question 3

In a medical animation pipeline, what does 'rigging' refer to?

Accepted Answer

Creating a skeletal armature to enable character or anatomical structure movement

Answer

Compositing visual effects layers

Answer

Setting up render farm nodes

Answer

Mapping texture UV coordinates

Question 4

Which web technology enables interactive 3D anatomical models to run directly in a browser without plugins?

Accepted Answer

WebGL/Three.js

Answer

Adobe Flash

Answer

Java Applet

Answer

Silverlight

Question 5

In medical AR/VR applications, what is the significance of 'frame rate' for surgical training simulations?

Accepted Answer

Rates below 60 fps can cause motion sickness and reduce training effectiveness

Answer

It affects file size only

Answer

It determines polygon count

Answer

Frame rate only matters for video export

Question 6

Which approach is used in CT/MRI volume rendering to produce semi-transparent 3D medical images?

Accepted Answer

Transfer functions mapping voxel intensity to color and opacity

Answer

Marching cubes algorithm only

Answer

Boolean mesh subtraction

Answer

Phong shading only