When the sun's rays passed through a lens in one of the walls, Leonardo's 3D model would have been projected on to the material, creating a permanent image.
当阳光穿过墙上的一个透镜头时，达·芬奇的三维头像就会被投射在织物上面，制成一个永久性的头像面容。
2
Lensmodel parameters are available in the curve editor.
透镜模型参数在曲线编辑器可用。
3
Specify which lensmodel parameters to estimate and click the Solve button.