Hi everyone, I have implemented Terrain library using Geometry Clipmap algorithm. In my project, I have to display terrain two different windows. And, I have used vertex buffer object to render the terrain. When I use to second display,
float* cachedData = static_cast<float*>(mExtension->glMapBuffer(GL_ARRAY_BUFFER_ARB,GL_READ_WRITE_ARB)); function always returns NULL and I can't map GPU buffer. But it works for one window. Anyone idea about this problem. Thanks a lot.
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