nvoverlaysink rendering

[DaneLLL]

Hi,

1. Is nvoverlaysink using the Direct Rendering Manager to draw the scenes? If not, what is it using?

It controls display controller directly. It is lower layer than DRM.

2. Why is the number of overlays limited to 3 (Hardware Restrictions)?

The limitation is 6. You can run 6 overlays at max.

3. I wasn´t able to make the overlay on top transparent to enable blending. How can this be achieved?

PLease check if nvcompositor can achieve your usecase.

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