I'm using a header-only single-file "library" to load .obj-models from a file into a graphics program. A simple linker error has popped up:
LNK2005 "Info here" already defined in main.obj
Now I know what this means and normally I'd proceed with moving the implementation to a separate file. However, this is a file provided by someone way smarter than I, and so relying on authority I'd expect the thing to work.
It only complains about a vector multiplication operator overload and a single function among loads of other functions:
glm::vec3 operator*(const float& left, const glm::vec3& right){
return glm::vec3(right.x * left, right.y * left, right.z * left);
}
bool inTriangle(glm::vec3 point, glm::vec3 tri1, glm::vec3 tri2, glm::vec3 tri3)
{
// Starting vars
glm::vec3 u = tri2 - tri1;
glm::vec3 v = tri3 - tri1;
glm::vec3 w = point - tri1;
glm::vec3 n = glm::cross(u, v);
float y = glm::dot(glm::cross(u, w), n) / glm::dot(n, n);
float b = glm::dot(glm::cross(u, w), n) / glm::dot(n, n);
float a = 1 - y - b;
// Projected point
glm::vec3 p = (a * tri1) + (b * tri2) + (y * tri3);
if (a >= 0 && a <= 1
&& b >= 0 && b <= 1
&& y >= 0 && y <= 1)
{
return true;
}
else
return false;
}
Is there something special about these functions?
The file is from OBJ Loader, which I have modified just to use the glm vectors and utilities I'm currently using elsewhere.
