orx/orx-temporal-blur/README.md

orx-temporal-blur

Post-processing temporal-blur video effect. CPU intense, therefore not intended for use with the ScreenRecorder extension or other real-time uses.

This extension uses multi-sampling to accumulate and average the final image.

Multi-sampling is performed by modifying Program.clock while processing the tail-end of the extension chain. This multi-sampling strategy is slow and not entirely suited in real-time and/or interactive settings.

orx-temporal-blur works well with programs that use seconds for their animation input. This includes Animatables, but only after the Animatable clock is synchronized with the Program clock. (Which you should already have done when using ScreenRecorder)

Synchronizing clocks in OPENRNDR 0.3.36 (current release):

Animatable.clock(object: Clock {
                override val time: Long
                    get() = (clock() * 1E3).toLong()
            })

Synchronizing high precision clocks in OPENRNDR 0.3.37 (future release)

Animatable.clock(object: Clock {
                override val time: Long
                get() = timeNanos / 1000
                override val timeNanos: Long
                    get() = (clock() * 1E6).toLong()

            })

Note that time-step-based simulations or integrations will likely break because your drawing code will be executed multiple times per frame.

Configuration

extend(TemporalBlur()) {
    duration = 0.9
    samples = 30
    fps = 60.0 
    jitter = 1.0
}