[Rendering] Renderer optimization, debug utilities

asc-community / MxEngine

C++ open source 3D game engine

BSD 3-Clause "New" or "Revised" License

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[Rendering] Renderer optimization, debug utilities #78

Closed MomoDeve closed 1 year ago

MomoDeve commented 1 year ago

this PR:

eliminates unnecessary mipmap generation for render targets
introduces separate render target what can be downsamples by generating mips
adds debug group macro & provides descriptions for render passes (can be seen in GPU debugger, see pic below)
modifies SSGI & SSAO to not use mipmaps during computing & during blurring (only there is one downsample after compute)
depth pyramid is computed after draw objects with mipmaps

fall2019 commented 1 year ago

Oh there was something wrong with this pr.

MomoDeve commented 1 year ago

@fall2019 yeah, I changed ssgi/ssao algorithms a bit. Do you think they became worse?

fall2019 commented 1 year ago

Maybe the brighter one looks more realistic since the intensity of the directional light is very high. And also it lights up the floor with high energy but other places seems too dark.