Vr camera get wrong result when vr camera is far away from mesh

When I use PicoVR or HTCVR in my project, if vr camera is closer to mesh, the result is correct.

But when vr camera is far away from mesh, the result is uncorrect, some strange black blocks appear.

This is PicoVR test vedio.

That is called zfight, when two polygons are too close and there is not enough depth precision.

There are multiple solutions, one of them is by separating polygons a bit more.

In that case you could move those blinking polygons a bit until the distance to the back frame is enough to eliminate the zfight.

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Hello, just checking in, was your question answered? @xiaopangoo