candycat1992 / shadertoy_lab Goto Github PK
View Code? Open in Web Editor NEW:pencil2: Test some shadertoy examples in Unity.
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royhu williamchao fordream francisliu1992 xigema mosaicchen learnunity sonygod yyzreal anteaterho sundong2012 damocs0921 laiqiqi sosoreally caedmom csujin zhaojinwei0124 lingkeyang grigb yanjunzhang zhaoxiongyang usr007 arlexdu longde123 templeblock 5bruce myl2232 slove3000 ahacrazy jesse1117 tgsen nocis guluguludundun caogtaa asdlei99 hengle ding-e heygithub wwwk hafewa yulinguodexin evenow astrowyh fukaken5050 mu-lshadertoy_lab's Issues
Depth peeling实现问题
不透明物体不能遮挡透明物体。渲染完不透明物体之后，在渲染透明物体之前，不透明物体的z-buffer被清除了，导致透明物体的ztest总是能通过，即使已经被遮挡。如果我想实现正常的遮挡关系，必须每次渲染透明层之前拷贝一份不透明物体的z-buffer吗？有什么方法可以避免这种拷贝吗？
渲染流程：
渲染所有不透明物体，保存他的color buffer和z buffer；
拷贝一份不透明物体的z buffer，用拷贝的z buffer做深度测试，开ztest 开zwrite，渲染最顶层透明，得到最顶层透明的color buffer和z buffer；
依次渲染不透明物体和最顶层物体之间的所有透明层，这其中需要每次都需要复制不透明层的z buffer
有什么更好的办法可以避免这种情况吗？
谢谢
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