Instructions for use

In the process of realizing the real space technology in SuperMap GIS products, 3D Display Effects brings the real space visual experience into full play. Stereoscopic display combines the most advanced computer software and hardware technology and three-dimensional visualization technology, which has the characteristics of powerful function, superior performance and realistic effect. The application of stereoscopic display makes the visual experience of GIS break through the limitation of two-dimensional screen for real space display. Users can get unprecedented visual experience from stereoscopic display, and three-dimensional GIS realizes the real three-dimensional visualization.

The application of stereoscopic display ranges from high-end to civilian use. High-end includes visualization Solution based on virtual reality and simulation technology provided for military and research institutions, and three-dimensional stereoscopic display such as popular science venues can be accessed in daily life. The following will introduce these stereoscopic display solutions in detail, bringing a shocking visual feast.

Stereo effect display principle: people look at the same object with the left and right eyes, the two eyes see different angles, and the images formed on the retina are not exactly the same. After the two images are synthesized by the brain, they can distinguish the front and back, far and near of the object. Thereby producing stereoscopic vision. The principle of stereo imaging is that the left and right eyes can obtain a group of pictures through a group of devices, and the stereo effect can be produced through the brain nerve response.

Switch the non-stereo mode to another stereo Display Mode, that is, turn on the corresponding 3D Stereo Display Effects. 3D stereoscopic display needs to activate 3D stereoscopic Display Effects and cooperate with corresponding devices, so that users can have an immersive feeling when watching 3D Scene.

Parameter Description

Stereo Mode

• Non-stereo: Normal 3D Scene mode.
• Anaglyphic: a stereoscopic effect displayed by a red and blue filter device.
• Quad Buffer: The stereo effect is achieved by acquiring images through a quad buffer division graphics card and shutter glasses.
• Horizontal Split: The three-dimensional imaging effect is achieved by using the principle of polarization filtering through the left and right projection of two devices.
• Vertical Split: The three-dimensional imaging effect is achieved by projecting two devices up and down separately and then using the principle of polarization filtering.
• OculusVR: Experience immersive Scene effects by wearing the Oculus VR virtual headset device.
• HTC Vive: Support for connecting the HTC Vive virtual reality headset.

Note: When using the OculusVR/HTC Vive mode, you need to set the Walking Mode of the scene to one of "Keyboard Driver" "," Automatic walking "" and "Autorun". And turn on Collision Detection.

Parallax Mode

• Front view difference: In the front view difference mode, the effect of displaying the depth of the object to the screen is achieved. The visual distance of the scene performance is adjusted mainly by adjusting the parameters of "angle of view" (unit radian) and "depth" (unit millimeter).
• Negative Parallax: In the negative parallax mode, the display object is highlighted outside the screen, and the visual distance of the scene performance is adjusted by setting the "Depth" (unit: mm) parameter.

Speed multiplier

• When the stereo mode is HTC Vive, this parameter can be set to control the speed of the HTC controller.

Remark

Under negative parallax, the visual angle can not be adjusted, and under positive parallax, the adjustment of the depth parameter has very little effect on the visual sense of distance.

Adjustment range of depth parameter: -1000 ~ 1000.

Related topics

View/Set Scene Properties

Principle of stereoscopic display technology

Solution