Note that this does not apply to rendering with area lights, caustics or interior mode as increasing samples while using those features will still increase the quality. This means you can use a lower samples setting when rendering at higher resolutions. Something important to be aware of is that as you increase the resolution of your image or animation, each pixel covers relatively less area of the image. There is a point of diminishing returns where you increase samples past the point of added quality, and just increase the render time. Using the time-based output will lead to more noise in the more complicated frames.Ī sample calculates the color of a pixel. This method is typically preferred over the time-based output for animations, as some frames may require substantially more time to reach the same quality level as levels of detail and complexity change through the course of your animation. Therefore, as the animation plays through the frames you will not see changes/flickering in shadows or noise patterns on materials. This option is ideal for animation output as it guarantees that each frame will be rendered at the same quality. The Maximum Samples option will read Samples Per Frame when the Animation tab is selected under the Output section. Make a note of the number of samples from the HUD and use that info when setting the Max Samples. Turn on the Heads-Up Display (H hotkey) and let the Real-time View sit until the region looks that way you like it. You can also set a Render Region on the Real-time View, focusing on the area, you think will require the most samples to look satisfactory.
Before rendering out an animation using Maximum Samples, test your samples with a still image render first. Start low and increase the samples if you still see noise or the render looks grainy.
Generally speaking, a simple scene will require fewer samples and a scene with more complex lighting and materials will require more samples.
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