????????????????????????

??

??? ??????????????????????????????????????????Hailong???????TBR????????

???TBR?

???Tile Based Rendering???????????????????????????????????????????????16�16 ?32�32???????????????????????

??????IMR?Immediate Mode Rendering?????????????????????????????????????????????????????????????

?????On-Chip Buffer)

TBR???GPU?????????????On-Chip Buffer????????????????Tile?????????????????????????IMR???????GPU????????????????Frame Buffer??????????????????????16�16???32�32????

?IMR???TBR?GPU??????????

IMR?TBR???????????????????????

????????IMR?TBR?????????????????IMR????Depth Test?Alpha Test???????????????????????????TBR??????Depth Test?Alpha Test????????????????????????????

Tiling????

????????Tile??????????????????????????????????Tile????Triangle List?????FrameBuffer?????????FrameBuffer?????Tile?TriangleList?????

Resove?Restore

??GPU???????????????????????Tile???????????FrameBuffer????????Resove?

???????????????Tile????????????FrameBuffer????Tile???????????????????Restore?

Resove?Restore??????????????????

???????????????FrameBuffer????????????????

???Resove+Restore?OpenGL ES???

• eglSwapBuffers
• glBindFramebuffer
• glTexImage2D?glTexSubImage2D,
• glBufferData?glBufferSubData
• glCopyTexImage2D ?glCopyTexSubImage2
• glReadPixels()
• ????Adreno_Developer_Guide.pdf?38??
  

???????Unity???Grap Pass??????????

??Unity??Grap Pass?????????????????????glBufferSubData,???Resorve?Restore?

???????
????????????????????????
???????????

????????

?????????????Resorve?

??????
????????????shader?????Resove?????
???????????????

???????

Shadow map??????????????????????????????????????????draw call??????????????

• ??????
• ?????RT?
• ??????????????????????????????????????
  

?????????

1????????????

2??????ETC?ATC?PVRTC???

3?????????????????Mipmap????????????????

4?????Resove?Restore?????RenderTexture????

• ?????
• ?????shadow map?
• ??
• ????
• 5???Shader?
• ????????
  

TBR?????OpenGL ES??

1?Framebuffer Fetch

??Shader???????????????????

?????????Color Grading???????

2?Pixel Local Storage

????????????????????????????128???256???

????????????????????????G-Buffer??

???????????
????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????


??????????
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?????GWB????
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