Chapter 19 Advanced Rendering 519 Copyright Goodheart-Willcox Co., Inc. Figure 19-5. A—If the raytracing depth is limited to 3, a light ray will bounce three times and then stop at the next surface. B—If transparent objects exist in the scene, refractions need to be calculated as well as reflections. The light ray will still make it to the back wall as long as the render accuracy settings are high enough. C—Lower render accuracy settings may mean that the light ray will not make it to the back wall. A C B A full-color image is provided on the companion website. www.g-wlearning.com/CAD/ Figure 19-6. A—This scene has a single point light and a low ceiling above to reflect the light. It has been rendered with the Low render preset. The portion of the floor in the shadow of the cylinder primitive is not in the direct path of light and is not properly illuminated. B—Using a higher render preset activates indirect illumination. Notice that the portion of the floor in the shadow is illuminated. The Medium render preset is used in this example. A B A full-color image is provided on the companion website. www.g-wlearning.com/CAD/