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mitsuba-renderer / mitsuba3

Mitsuba 3: A Retargetable Forward and Inverse Renderer
https://www.mitsuba-renderer.org/
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Why don't the "shutter_open" and "shutter_close" work in the mitsuba3 ? #1343

Closed erqihuang closed 1 week ago

erqihuang commented 1 month ago

Why don't the "shutter_open" and "shutter_close" work in the sensor of mitsuba3 ?

'type': 'perspective', 'shutter_open': 1.0, 'shutter_close': 10.0,

rtabbara commented 1 week ago

Hi @erqihuang,

I'm interpreting the question as why you don't visualise motion blur in your rendered scene?

The shutter_open and shutter_close parameters will generate time-specific rays when sampling from a sensor but Mitsuba 3 currently doesn't have plugins (shapes, bsdfs etc.) that utilise this information. For example, for a shape in the scene, you may want to specify the change in the shape's world transform between the shutter open and close time interval. In theory, you could create your own custom plugins to support this but at least in the short term we don't have any plans to internally add this feature.