Find intersection of a ray with a 3Dprimitive

@edapx wrote:

I'm trying to use this method https://glm.g-truc.net/0.9.0/api/a00162.html in order to find the intersection between a ray (with origin X and direction wi) and a mesh. The problem that I'm having now is to convert the position of the vertices of the 3d primitive, in this case a box, to global space.

This is my code

ofColor RayCaster::L_i(const glm::vec3& X, const glm::vec3& wi) const {
     // for all the triangles in a mesh
     // Find the first intersection (and the closest!) with the scene
    glm::mat4 globalTransfMatrix = this->box.getGlobalTransformMatrix();
    vector<ofMeshFace> faces = this->mesh.getUniqueFaces();
    bool found = false;
    for(ofMeshFace face : faces){
        glm::vec3 baricenter;
        found = glm::intersectRayTriangle(X, wi,
                                          face.getVertex(0) * globalTransfMatrix,
                                          face.getVertex(1) * globalTransfMatrix,
                                          face.getVertex(2) * globalTransfMatrix,
                                          baricenter);
        if (found) {
            break;
        }
    }

   // black and white debug
    if (found) {
       return ofColor(255,0,255);
    } else {
       return ofColor(0,0,0);
    }
}

The error that I'm having is
"
Use of overloaded operator '*' is ambiguous (with operand types 'const glm::tvec3' and 'const glm::mat4' (aka 'const tmat4x4'))
"

I've already tried to multiply a glm::vec4 for glm::mat4, but in this case I was having another error, saying that the signature of the method is not correct.

Any Ideas?

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