收集 Graphics 优化相关 - Early-Z, Alpha Test, AlphaBlending

• Unity移动端性能优化

Early-z/Z Pre-pass

• PowerVR+Performance+Recommendations.The+Golden+Rules.pdf PowerVR 系列CPU的性能建议，黄金规则

  • 如果打不开，就在这打开：链接: https://pan.baidu.com/s/1VcIqBHXnjp66JldbdchwEA 提取码: q8wu
  • PowerVR 结构的就没必要Early-depth/z ，因为这个结构的GPU在Rasterization就有深度剔除优化
  • 所以Early-depth/z并不适合每一个GPU。
  • 这个文档里有说明：

    • On graphics hardware that employs a deferred rendering architecture such as PowerVR, an application should not perform a depth pre-pass as there is no performance benefit. Performing this operation would be a waste of clock cycles and memory bandwidth. This is because the hardware will detect and remove occluded (opaque) geometry from the pipeline automatically during rasterization, before fragment processing begins.

  • SIGGRAPH 2004 – Real-Time Shading Course ShadingCourse2004_EarlyZ.pdf

• Early Z Rejection

• Explicit Early-Z Culling and Dynamic Flow Control on Graphics Hardware

• Unity Shader-渲染队列，ZTest，ZWrite，Early-Z

• 虚幻4渲染编程(Shader篇)【第十四卷：PreZ And EarlyZ In UE4】

Alpha Test & Alpha Blending

• 【Unity Shaders】Alpha Test和Alpha Blending
• alpha test performance
• why the alphablend is a better choice than alphatest to implement transparent on mobile device?

Post Processing

用三角形代替四边形-后处理优化

Debug RenderDoc

• Github
• Builds
• windowsx64: 1.7: 上面链接慢的话，可以在下面的百度网盘下载
  • RenderDoc_1.7_64.msi dbrq
  • renderdoc.chm a9bt
• unity RenderDoc Integration

Visual Studio Graphic Debugger

• VSGD in unity

PIX Intel GPA

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