Autodesk 12812-051462-9011 User Guide 3 - Page 826

This additional panel appears below the Rendered Frame Window when mental ray is the active renderer. NOTE Most of the settings on this panel are linked to settings on the Render Setup dialog, as noted in the following descriptions. Changing a setting here makes the same adjustment to the respective Render Setup setting, and vice-versa. If you change a setting here, the Render Setup dialog setting updates automatically, but the reverse is not true. If you change a setting on the Render Setup dialog, to see the change on this panel, you must click the panel. Include in Render group Reflections When on, mental ray traces reflections. Turn off to improve performance when you don't require reflections. See Enable Reflections on page 6281. ■ Max Sets the number of times a ray can be reflected. At 0, no reflection occurs. At 1, the ray can be reflected once only. At 2, the ray can be reflected twice, and so on. Default=4. Refractions When on, mental ray traces refraction. Turn off to improve performance when you don't require refraction. See Enable Refractions on page 6281. ■ Max Sets the number of times a ray can be refracted. At 0, no refraction occurs. At 1, the ray can be refracted once only. At 2, the ray can be refracted twice, and so on. Default=6. Soft Shadows When on, renders shadows from area lights normally. When off, renders all area lights or shadows as if they were emitted from point objects, speeding up rendering time. See Area Lights/Shadows as Points on page 6128. Final Gather When on, the mental ray renderer uses final gathering on page 6295 to create global illumination or to improve its quality. Default=on. The equivalent Render Setup dialog control is Enable Final Gather on page 6299. ■ Bounces Sets the number of times mental ray calculates diffuse light bounces for each diffuse ray. Default=0. The equivalent Render Setup dialog control is Diffuse Bounces on page 6300. Subset Pixels (of selected objects) When on, rendering the scene applies only to selected objects. Unlike using the Selected option for rendering, however, using this option takes into account all scene elements that affect its appearance. This includes shadows, reflection, direct and indirect lighting, Rendered Frame Window | 6081