INNER CODE UNIT · C++

il

Code-Guy/Bamboo · external/imgui/ImGuizmo.cpp:151

      float il = 1.f / (sqrtf(Dot(a, a)) + FLT_EPSILON);
      r[0] = a[0] * il;
      r[1] = a[1] * il;
      r[2] = a[2] * il;
   }

   void LookAt(const float* eye, const float* at, const float* up, float* m16)
   {
      float X[3], Y[3], Z[3], tmp[3];

      tmp[0] = eye[0] - at[0];
      tmp[1] = eye[1] - at[1];
      tmp[2] = eye[2] - at[2];
      Normalize(tmp, Z);
      Normalize(up, Y);
      Cross(Y, Z, tmp);
      Normalize(tmp, X);
      Cross(Z, X, tmp);

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