Render Tab

• Preview. Uses a hardware agnostic, high quality interactive WYSIWYG rasterizer that creates a realtime and noise free approximation of lighting.
• Fast. Hardware agnostic, biased, interactive WYSIWYG raytracing using Nvidia iray which enables fastest time-to-quality lighting.
• Accurate. Hardware agnostic, unbiased, interactive WYSIWYG pathtracing using Nvidia iray which enables accelerated best quality lighting.

• Time Limit. Stops the rendering after reaching the time limit you enter, regardless of the final quality. After the render starts, you can stop it early.
• Quality. Stops the rendering after reaching the number of rendering passes you enter, regardless of time.

Fewer passes yields an image in a shorter amount of time but with potentially less completion and more noise.

More passes yields an image in a greater amount of time but with less or no noise and full completion.

In most cases, 250 passes would result in a complete image except for fully enclosed interior or enclosed environments which typically need 1000 passes to generate a complete image.

• CPU. Uses your CPU exclusively (good for users with basic graphics cards or who wish to perform other graphics intensive tasks in parallel with rendering).
• GPU. Uses your CUDA enabled Nvidia card exclusively (good for users with powerful graphics cards or multiple graphics cards for maximum render acceleration).
• Hybrid. Uses your CPU and GPU.

You can then reopen the Output Tools dialog box and use the saved settings.

Select from the following output passes:

• Beauty. Uses a regular raytraced image. When rendering multiple passes of a scene, the beauty pass is the one that features the most significant information about the objects in it. This usually includes the main, full-color rendering of those objects, including diffuse illumination and color. A beauty pass does not include reflections, highlights, or shadows, which are usually separate passes.
• Gloss. Uses 50% rough chrome for isolating reflections.
• Specular. Uses 100% chrome for isolating highlights.
• Black Specular. Same as Specular, but shows the reflections over a glossy black paint to collect the correct fresnel.
• Roughness. Renders each part based on its material roughness. This is an advanced version of the Gloss pass which retains per material roughness.
• Incandescence. Lights the scene using lights that you placed in the scene, if any, but not the HDRI environment. If you have not put lights in the scene, this output pass is black.
• Ambient Occlusion. Same as Global Illumination except for collecting the shadow information from an evenly lit white environment. Shadows are not colored, nor are they directional.
• Floor Shadow. Shows floor shadows only.
• Global Illumination. Paints the objects in the scene flat white, and captures internal shadowing (the object shadowing itself). Global illumination is a superset of the radiosity and raytracing rendering techniques. The goal of global illumination rendering is to compute all of the possible light interactions between surfaces in a given scene to obtain a photorealistic image. All combinations of diffuse and specular reflections and transmissions must be accounted for. Effects such as color bleeding and caustics must also be included in a global illumination simulation.
• Object. Uses a black and white mask to delineate between the 3D model in the scene versus the background.
• Depth. Renders the Z-depth of the camera in terms of grayscale value. You can use this output pass during post-processing to apply items such as depth of field and fog. Z-depth is the distance a particular point or surface lies inside a scene. Z-depth information is used to calculate where a light casts shadows, and also to calculate which surfaces are visible to the camera during rendering and which are obscured by nearer geometry.
• Clown. Paints each part a separate flat color.

(Check box and button)