Stencil Examples - OpenGL Programming Guide - O'Reilly ...
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Stencil Examples Probably the most typical use of the stencil test is to mask ... Selection from OpenGL Programming Guide: The Official Guide to Learning ... Skiptomaincontent OpenGLProgrammingGuide:TheOfficialGuidetoLearningOpenGL,Version4.3,EighthEditionby GetfullaccesstoOpenGLProgrammingGuide:TheOfficialGuidetoLearningOpenGL,Version4.3,EighthEditionand60K+othertitles,withfree10-daytrialofO'Reilly. There'salsoliveonlineevents,interactivecontent,certificationprepmaterials,andmore. Startyourfreetrial StencilExamples Probablythemosttypicaluseofthestenciltestistomaskoutanirregularlyshapedregionofthescreentopreventdrawingfromoccurringwithinit.Todothis,fillthestencilmaskwithzeros,andthendrawthedesiredshapeinthestencilbufferwithones.Youcan’tdrawgeometrydirectlyintothestencilbuffer,butyoucanachievethesameresultbydrawingintothecolorbufferandchoosingasuitablevalueforthezpassfunction(suchasGL_REPLACE).Wheneverdrawingoccurs,avalueisalsowrittenintothestencilbuffer(inthiscase,thereferencevalue).Topreventthestencil-bufferdrawingfromaffectingthecontentsofthecolorbuffer,setthecolormasktozero(orGL_FALSE).Youmightalsowanttodisable... GetOpenGLProgrammingGuide:TheOfficialGuidetoLearningOpenGL,Version4.3,EighthEditionnowwiththeO’Reillylearningplatform. O’Reillymembersexperienceliveonlinetraining,plusbooks,videos,anddigitalcontentfromnearly200publishers. Startyourfreetrial Don’tleaveempty-handed GetMarkRichards’sSoftwareArchitecturePatternsebooktobetterunderstandhowtodesigncomponents—andhowtheyshouldinteract. It’syours,free. Getitnow Close
延伸文章資訊
- 1Writing to the OpenGL Stencil Buffer - Stack Overflow
The stencil buffer is theoretically a buffer like the back buffer and the depth buffer. The three...
- 2OpenGL Programming/Stencil buffer - Wikibooks, open books ...
OpenGL Programming/Stencil buffer ... When you draw something with OpenGL, you see colors on the ...
- 3Stencil Examples - OpenGL Programming Guide - O'Reilly ...
Stencil Examples Probably the most typical use of the stencil test is to mask ... Selection from ...
- 4Stencil testing - LearnOpenGL
A stencil buffer (usually) contains 8 bits per stencil value that amounts to a total of 256 diffe...
- 5模板测试
当片段着色器处理完片段之后，模板测试(Stencil Test) 就开始执行了，和深度 ... 但是 glStencilFunc 只描述了OpenGL对模板缓冲做什么，而不是描述我们如何更新缓冲。
