Triangle.ReprojectUVNoY C# (CSharp) Méthode

    void ReprojectUVNoY(List<Triangle> res, bool forceXZLayerProject = true)
    {
        /*double minX = points[0].x, maxX = points[0].x, minZ = points[0].z, maxZ = points[0].z;
        double minXUV = uvs[0].x,maxXUV = uvs[0].x, minZUV = uvs[0].y, maxZUV = uvs[0].y;

        for (int i=1;i<3;i++){
            if (minX > points[i].x){
                minX = points[i].x;
                minXUV = uvs[0].x;
            }
            if (maxX < points[i].x){
                maxX = points[i].x;
                maxXUV = uvs[0].x;
            }

            if (minZ > points[i].z){
                minZ = points[i].z;
                minZUV = uvs[0].y;
            }
            if (maxZ < points[i].z){
                maxZ = points[i].z;
                maxZUV = uvs[0].y;
            }
        }
        double deltaX = maxX - minX;
        double deltaZ = maxZ - minZ;
        double deltaUVX = maxXUV - minXUV;
        double deltaUVZ = maxZUV - minZUV;

        foreach (var t in res) {
            for (int i = 0; i < 3; i++) {
                var pos = t.Vertex (i);

                t.uvs [i] = new Vector2D(
                    minXUV + deltaUVX*((pos.x -minX)/(deltaX)),
                    minZUV + deltaUVZ*((pos.z -minZ)/(deltaZ))
                );
                if (deltaX == 0) {
                    Debug.LogWarning ("deltaX is 0");
                    t.uvs[i].x = minXUV;
                }
                if (deltaZ == 0) {
                    Debug.LogWarning ("deltaZ is 0");
                    t.uvs[i].y = minZUV;
                }
            }
        }
        */
        // http://answers.unity3d.com/questions/383804/calculate-uv-coordinates-of-3d-point-on-plane-of-m.html
        var p1 = points[0];
        var p2 = points[1];
          	var p3 = points[2];
        if (forceXZLayerProject) {
            p1.y = 0;
            p2.y = 0;
            p3.y = 0;
        }
        foreach (var t in res){
            for (int i=0;i<3;i++){
                var pos = t.Vertex(i);
                if (forceXZLayerProject) {
                    pos.y = 0;
                }
                // calculate vectors from point f to vertices p1, p2 and p3:
                var f1 = p1-pos;
                var f2 = p2-pos;
                var f3 = p3-pos;
                // calculate the areas and factors (order of parameters doesn't matter):
                double a = Vector3D.Cross(p1-p2, p1-p3).magnitude; // main triangle area a
                double a1 = (Vector3D.Cross(f2, f3).magnitude / a); // p1's triangle area / a
                double a2 = (Vector3D.Cross(f3, f1).magnitude / a); // p2's triangle area / a
                double a3 = (Vector3D.Cross(f1, f2).magnitude / a); // p3's triangle area / a
                // find the uv corresponding to point f (uv1/uv2/uv3 are associated to p1/p2/p3):

                t.uvs[i] = uvs[0] * a1 + uvs[1] * a2 + uvs[2] * a3;
            }
        }
        /*
        var p1 = points[0];
        var p2 = points[1];
        var p3 = points[2];
        if (forceXZLayerProject) {
            p1.y = 0;
            p2.y = 0;
            p3.y = 0;
        }
        // calculate vectors from point f to vertices p1, p2 and p3:
        foreach (var t in res) {
            for (int i = 0; i < 3; i++) {
                var pos = t.Vertex (i);
                if (forceXZLayerProject) {
                    pos.y = 0;
                }
                var f1 = p1 - pos;
                var f2 = p2 - pos;
                var f3 = p3 - pos;
                // calculate the areas (parameters order is essential in this case):
                var va = Vector3D.Cross (p1 - p2, p1 - p3); // main triangle cross product
                var va1 = Vector3D.Cross (f2, f3); // p1's triangle cross product
                var va2 = Vector3D.Cross (f3, f1); // p2's triangle cross product
                var va3 = Vector3D.Cross (f1, f2); // p3's triangle cross product
                double a = va.magnitude; // main triangle area
                // calculate barycentric coordinates with sign:
                double a1 = va1.magnitude / a * Mathf.Sign ((float)Vector3D.Dot (va, va1));
                double a2 = va2.magnitude / a * Mathf.Sign ((float)Vector3D.Dot (va, va2));
                double a3 = va3.magnitude / a * Mathf.Sign ((float)Vector3D.Dot (va, va3));
                // find the uv corresponding to point f (uv1/uv2/uv3 are associated to p1/p2/p3):
                t.uvs [i] = uvs[0] * (float)a1 + uvs[1] * (float)a2 + uvs[2] * (float)a3;
            }
        }*/
    }