Function main

examples/internals/ProjectionSample.cpp:102–146

};

int main(int argc, char *argv[]) {
    BoundsList xBounds;
    xBounds.push_back(-1);
    xBounds.push_back(1);

    BoundsList yBounds(xBounds);
#if 1
    BoundsList zBounds(xBounds);
#else
    BoundsList zBounds{{0., 1.}};
#endif

    double near = 0.1;
    double far = 1000;
    auto rect =
        osvr::util::computeSymmetricFOVRect(50. * degrees, 40. * degrees, near);
    std::cout << "Near: " << near << "\tFar: " << far << "\n";
    std::cout << rect << std::endl;
    auto projection = osvr::util::createProjectionMatrix(rect, near, far);
    std::cout << "Projection matrix:\n";
    std::cout << projection << std::endl;

    std::cout << "Frustum corners:\n";
    Eigen::Matrix4d inv = projection.inverse();
    for (auto z : zBounds) {
        for (auto y : yBounds) {
            for (auto x : xBounds) {
                Eigen::Vector4d bound(x, y, z, 1);
                std::cout << bound.transpose() << "\t<-\t"
                          << osvr::util::extractPoint(inv * bound).transpose()
                          << "\n";
            }
        }
    }

    {
        ProjectionDemo demo(0.1, 1000);
        demo.tryProjection<0>();
        demo.tryProjection<opts::LeftHandedInput>();
        demo.tryProjection<opts::ZOutputUnsigned>();
        demo.tryProjection<opts::LeftHandedInput | opts::ZOutputUnsigned>();
        return 0;
    }
    return 0;
}