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karansher / computer-graphics-ray-tracing

Computer Graphics Assignment about Ray Tracing
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Getting make error #3

Open DerekCresswell opened 1 year ago

DerekCresswell commented 1 year ago 
derek@DLTVMU:~/UofT/Courses/CSC317/CSC317-A3/build$ make
Scanning dependencies of target hw2
[  6%] Building CXX object CMakeFiles/hw2.dir/src/Triangle.cpp.o
[ 13%] Linking CXX static library libhw2.a
[ 53%] Built target hw2
[ 60%] Linking CXX executable raytracing
/usr/bin/ld: libhw2.a(Triangle.cpp.o): in function `Triangle::intersect(Ray const&, double, double&, Eigen::Matrix<double, 3, 1, 0, 3, 1>&) const':
Triangle.cpp:(.text+0x306): undefined reference to `Eigen::MatrixBase<Eigen::Matrix<double, 3, 3, 0, 3, 3> >::determinant() const'
/usr/bin/ld: Triangle.cpp:(.text+0x528): undefined reference to `Eigen::MatrixBase<Eigen::Matrix<double, 3, 3, 0, 3, 3> >::determinant() const'
/usr/bin/ld: Triangle.cpp:(.text+0x72d): undefined reference to `Eigen::MatrixBase<Eigen::Matrix<double, 3, 3, 0, 3, 3> >::determinant() const'
/usr/bin/ld: Triangle.cpp:(.text+0x8de): undefined reference to `Eigen::MatrixBase<Eigen::Matrix<double, 3, 3, 0, 3, 3> >::determinant() const'
collect2: error: ld returned 1 exit status
make[2]: *** [CMakeFiles/raytracing.dir/build.make:160: raytracing] Error 1
make[1]: *** [CMakeFiles/Makefile2:105: CMakeFiles/raytracing.dir/all] Error 2
make: *** [Makefile:84: all] Error 2

I imported my code from A2 and ran make like normal. However, this time it seems like CMake can't find the eigen definitions for matrix determinant. I checked the headers and all the same things are included as in A2.

DerekCresswell commented 1 year ago

Added #include <Eigen/Geometry> to my triangle file and it works now. I guess I am just wondering why it would've worked in A2 but not here...