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Alternatively, you could set the interval to 300s and the renderer will update the image approximately every five minutes after it starts work on the frame. This time includes the renderer startup time, such as parsing RIB, cracking procedurals, and building ray tracing acceleration structures. As a result, there may be fewer increments before the first checkpoint than between later checkpoints. For convenience, the time-based interval can also be specified with a suffix suffixes of s, m, h, or d for seconds, minutes, hours, and days respectively and these may be combined. For example, intervals of 360s, 6m, 5m60s, and 0.1h are all equivalent. Instead of a suffix, you can also just specify a positive number and time in seconds will be assumed, while a negative number will be interpreted as the number of increments.

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