Implanted true-three-dimensional stereo rendering method facing to ERDAS Virtual GIS
A three-dimensional, implantable technology, applied in the field of implantable true three-dimensional stereo rendering, can solve the problems of high cost, inability to achieve true three-dimensional stereo display, and inability to popularize stereo display applications.
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Embodiment 1
[0058] Such as figure 2 and image 3 As shown, since ERDAS Virtual GIS uses OpenGL API as the three-dimensional rendering API in the modeling stage, this embodiment is based on OpenGL API as the implementation object, and the operating system platform is Windows XP for implementation.
[0059] The interception and monitoring of OpenGL API is developed based on Micorsoft Detours SDK. Detours is a set of development kits provided by Microsoft for API call interception under the Windows platform, which supports all Win32 platforms.
[0060] Such as figure 1 As shown, the implantable true three-dimensional rendering method for ERDAS Virtual GIS software comprises the following steps:
[0061] Step (1) monitor and render data interception for the OpenGL API used by ERDAS Virtual GIS;
[0062] Step (2) using the scene transformation matrix and the projection transformation matrix to reconstruct the rasterized three-dimensional data;
[0063] Step (3) Adaptive screen resolution...
Embodiment 2
[0084] An implantable true three-dimensional rendering method for ERDAS Virtual GIS software, including the interception of the following functions:
[0085] a. Create the function of the 3D display environment, monitor the function, add the system detection function calling the 3DOpenGL API to the monitoring function, obtain the stereoscopic display characteristics of the system, and change the stereoscopic in the originally set display environment according to the corresponding stereoscopic display characteristics Display mode, enable true 3D stereoscopic display support on hardware that supports stereoscopic display, and set flags for red-green stereoscopic display on hardware that does not support stereoscopic display.
[0086] b. Start a frame drawing function, monitor the function, add code to the monitoring function to obtain the viewport size of the current drawing frame, and create a temporary buffer for the stereo pair according to the rendered pixel format.
[0087]...
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