Pixelflinger b1070c6508 ssao code improvements and bug fixes ...

- fix a recent typo that affected SSAO quality
- add a upsampling quality checkbox in material_sandbox
- make use of textureLodOffset instead of texelFetch, so that
  we emulate more closely textureGather
- don't hardcode bilateral filter edge-distance in the shader
  (still hardcoded on the cpu side)

2020-09-03 22:44:48 -07:00

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