3D Unsharp Masking for Scene Coherent Enhancement Supplemental Material: Rendering

Under our enhancement, the luminance changes created by a texture are also enhanced. As we found with the book example, this simply means the enhancement is less robust to changes in radius and enhancement strength users may choose a weaker effect to avoid enhancing the textures. Or, should the user have special reason not to enhance texture at all, he or she may choose to render in two passes (one with reflected lighting, one with texture), enhancing only the textureless pass and then recombine (note that this restricts the scene to diffuse textures). However, as shown in the book example (Figure 5 and by the user study on that image, pleasing enhancements can be achieved by adjusting σ and λ. Another example of a zebra whose stripes are a luminance texture, explicitly shows how we seamlessly enhance textures (Figure 1).