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Instructions for Use
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What Is PDT 3d?

Are you interested in finding out more about PDT 3d or our PDT Software Development Kits? Contact our Business Development Team .

How to Use the PDT 3d Occlusion Reduction Demo

   Play a Pre-recorded Demo

Click on the play demo button on the PDT 3d Occlusion Reduction Demo toolbar to see an autorun demonstration of the PDT 3d Occlusion Reduction Demo in use. To exit the demonstration at any time, simply press Ctrl Esc on your keyboard.

The PDT 3d Demo Window

The PDT 3d Occlusion Reduction Demo window shows two different views of the same 3D model, in this case a matrix of coloured cubes.

The lefthand image is the Camera view of the cube matrix with a PDT lens enabling you to see "into" the cube. PDT 3d provides a clear line of vision to the Target cube by displacing objects that were previously obstructing this line of view.

The righthand image is the Target plane view , a cross section through the cube matrix at right angles to the line of view intersecting the Target cube.

The Directional controls allow you to move and resize the cube matrix in virtual 3D.
[Instructions for use]

The Lens controls allow you to move and reconfigure the PDT 3d lens acting on the cube matrix. Lens controls appear around the PDT 3d lens in both Camera view and Target Plane view.
[Instructions for use]

Using the PDT 3d Directional Controls

The directional controls.

To use the Directional controls to change your view of the cube matrix, position your mouse cursor over a Directional control, press and hold the left mouse button, and move your mouse.

Pan - Standard panning functionality
Rotate – Rotate the cube and see your target from any angle
Zoom – Standard zooming functionality

To Select a New Target Cube postion your mouse cursor over a cube in the matrix and press the center mouse button. The selected cube will change colour to red, indicating that it is now the target. The PDT 3d lens will automatically realign to the new Target cube.

Using the PDT 3d Lens Controls

The lens controls for Camera View.

Move the Lens by clicking and dragging within the lens (Camera view or Target Plane view).

Adjust the Size of the Lens Focal Region or Base Region by clicking and dragging a corner point (Camera view or Target Plane view).

Control Occlusion with the Occlusion control which appears in either Camera view or Target Plane view.

Lens occlusion is the factor of lateral displacement of objects in the PDT 3d lens. It controls how far the PDT 3d lens moves occluding objects out of the line of view. For a more detailed description of the parts and functions of PDT lenses, please refer to our Technical Descriptions .

Control Lens Scoop with the Scoop control which appears in either Camera view or Target Plane view.

Lens scoop is the rate of lateral displacement of objects appearing in the PDT lens shoulder. It controls the spacing of displaced objects in the PDT 3d lens shoulder. For a more detailed description of the parts and functions of PDT lenses, please refer to our Technical Descriptions .

Change Lens Depth using the rightmost slider which appears in Camera view only.

Lens depth controls the placement of the Target Plane along the line of view.

 

Cube Display The outer layers of cubes occlude our vision of the inner elements of the matrix.		Cube Display viewed with PDT 3d PDT 3d displaces cubes in the outer layers to reveal a target hidden within the matrix. Contextual information is preserved.