Can I have 2 different rendering paths: deferred and forward in the same scene?

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We want to have 2 cameras in the scene:

perspective projection with deferred rendering path (normal camera)
orthographic projection with forward rendering path (like mini-map camera)

So my question is, can these two different forwarding paths exist in the same scene, or this could cause performance problems?

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Answer by Pangamini · May 07, 2019 at 11:13 AM

It's perfectly OK, it's camera's rendering, does not affect the composition of the scene. In fact, deferred camera does forward rendering for all but standard-lit objects (transparent, etc).

But I'd strongly recommend not to render the minimap simply as a topdown camera. I haven't seen your scene, but you will most likely generate a lot of drawcalls that will barely fill a single pixel. Instead, I'd suggest you to render the minimap world only once, store that into a texture to be used as a gui background, and render objects on a minimap separately, ideally as simple dots? Create simple representations of your game objects for the minimap and update their positions.

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Can I have 2 different rendering paths: deferred and forward in the same scene?

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