Light / textures disappearing from mesh at certain viewing angles

Anybody know why viewing a mesh from a slightly different camera angle would make a material flicker on or off?

Example:

3172746--241718--upload_2017-8-5_1-6-31.png

3172746--241717--upload_2017-8-5_1-5-47.png

(yes, this is Scene view in editor, but the same thing happens in the game at runtime)

Another example (same room) it will flicker between lighting effects (shadows/highlights) and no highlighting effects (flat/albedo only):

Another example (same room… flickers/wavers between highlight/shadow effects, vs. flat albedo-only style):
3172750--241721--upload_2017-8-5_1-18-8.png

3172750--241722--upload_2017-8-5_1-18-31.png
(notice shadow on floor and, especially, the light highlighting the wall … very jarring when these things are suddenly turning on and off in rapid succession)

PS. This is currently all real-time (not baked) lighting

Hey @guru20

Are you using forward rendering path? If so, then you may need to increase pixel light count in Edit > Project Settings > Quality tab

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