Shadow-Play

A Qt Program for visualizing shadows, final project of Yale University CPSC 679 (Computational Issues in 3-D Design and Fabrication)

Dependencies

• CGAL ~> 4.7
• LibQGLViewer ~> 2.6.3
• Qt ~> 5.5
• Assimp ~> 3.2
• GLM ~> 0.9.7

Building from source

To build Shadow-Play, first run cmake then

% make shadow-play

Manual

Shadow-Play allows user to easily visualize shadows cast by a point light-source. The user can manipulate the 3D scene on the left-pane and see real-time shadow feedback on the right. The user can also save the current configuration to an aggragated mesh in OFF format.

The command-line arguments are a list of paths to 3D models. Shadow-Play supports all formats supported by Assimp (see a list here).

Basic Controls

1. Left-click and drag mouse to rotate scene
2. Right-click and drag mouse to move scene
3. Shift + Click to select a mesh or the light source.
4. Once an object is selected, all mouse controls are applied to the object's local frame.
5. Shift + Click background to de-select object.
6. When an object is selected, hold Ctrl to apply mouse controls to the entire scene.
7. Press H to see more controls and short-cuts, including taking screenshots, double-click controls etc.
8. ESC to quit

Export

• Use Alt + S to save current configuration to meshes.off. It is an aggregated mesh consists of all meshes in the scene and their current coordinates.
• The light source coordinate is output on the second line of the file as a comment.
• Meshes are re-triangulated and vertices may be duplicated.

Screenshot