2012年3月8日 星期四

Lighting & Simplifying Saints Row: The Third



Latest iteration of inferred lighting
first pass - low -res MRT geometry pass 800x450 on consoles




DSF ID??

second pass - Low-res lighting pass

final pass full-res material pass 1280x720, 2xMSAA

features: lots of fully dynamic light
-integrate  alpha
-support MSAA hardware

new
  - Lit rain

normals: choose a good normal for rain is difficult:

- foliage
  - assumes low scene resolution
  - save 2ms


- dynamic decals
   - slow at creation , quick render
    - collect detal mesh



 screen space decal
 - volumetric decals applied in screen space

-Radial ambient occlusion(RAO)


Automation LOD pipeline
- mostly artist authored



now
 - imp. own mesh simplifier
 - not in DCC application

Mesh simplification
-Using Quadric matrix, Q can represent an set of planes
- singular quadrics, can't a;ways invert Q
 -preserve texture gradient
 - preserving BOX


suppeyment LOD
- bake each streamable zone into first stage.
- replace with vertex coloring

simplifier paint weight by artist
- no artist determine, supplement LOD,  terrain...







沒有留言:

張貼留言