When binding an fbo do you need to call ...

The attachment bindings are part of the FBO state. You only need to call glFramebufferTexture2D() once, while the FBO is bound. 2022DeveloperSurveyisopen!Takesurvey. Home Public Questions Tags Users Companies Collectives ExploreCollectives Teams StackOverflowforTeams –Startcollaboratingandsharingorganizationalknowledge. CreateafreeTeam WhyTeams? Teams CreatefreeTeam Collectives™onStackOverflow Findcentralized,trustedcontentandcollaboratearoundthetechnologiesyouusemost. Learnmore Teams Q&Aforwork Connectandshareknowledgewithinasinglelocationthatisstructuredandeasytosearch. Learnmore WhenbindinganfbodoyouneedtocallglFramebufferTexture2Deveryframe? AskQuestion Asked 6years,11monthsago Modified 6years,11monthsago Viewed 3ktimes 1 OneachdrawframewhenIbindanFBOamIsupposedtocall GLES20.glFramebufferTexture2D(GLES20.GL_FRAMEBUFFER, GLES20.GL_COLOR_ATTACHMENT0,GLES20.GL_TEXTURE_2D, ResourceManager.windowTex[0],0); Areyouonlysupposedtocallthiswhenyouinitializeyourframebufferoreveryframe?Itdoesn'tdrawformeunlessIcallitafterglBindFramebuffer. androidiosopengl-es Share Follow editedMay31,2015at6:00 mas4 90911goldbadge88silverbadges1919bronzebadges askedMay31,2015at4:55 NJGUYNJGUY 1,97533goldbadges2222silverbadges3939bronzebadges Addacomment  |  1Answer 1 Sortedby: Resettodefault Highestscore(default) Datemodified(newestfirst) Datecreated(oldestfirst) 3 TheattachmentbindingsarepartoftheFBOstate.YouonlyneedtocallglFramebufferTexture2D()once,whiletheFBOisbound.ThosesametextureswillstillbeattachedwhenyoulaterbindthesameFBOagain. OnepossibletrapisthatthetextureobjectmusthavebeencreatedbeforeitcanbeattachedtoanFBO.Generatingthenamealoneisnotenough,itneedstobeboundatleastoncetocreatetheactualtextureobject.Forexample,thefollowingwouldbeanerror: GLuinttexId=0; glGenTextures(1,&texId); GLuintfboId=0; glGenFramebuffers(1,&fboId); glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,GL_TEXTURE_2D,texId,0); glBindTexture(GL_TEXTURE_2D,texId); glTexImage2D(...); ThetextureobjectwasnotcreatedinthiscasebeforebeingattachedtotheFBO.Thefollowingontheotherhandisvalid: GLuinttexId=0; glGenTextures(1,&texId); glBindTexture(GL_TEXTURE_2D,texId); glBindTexture(GL_TEXTURE_2D,0); GLuintfboId=0; glGenFramebuffers(1,&fboId); glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,GL_TEXTURE_2D,texId,0); glBindTexture(GL_TEXTURE_2D,texId); glTexImage2D(...); NotethatthetexturedoesnothavetobecurrentlyboundwhenglFramebufferTexture2D()iscalled,andit'salsonotnecessaryfortexturedatatohavebeenspecifiedatthatpoint.Itjustneedstohavebeenboundatleastoncetotriggercreationofthetextureobject. Share Follow answeredMay31,2015at5:16 RetoKoradiRetoKoradi 51.4k88goldbadges8383silverbadges123123bronzebadges 0 Addacomment  |  YourAnswer ThanksforcontributingananswertoStackOverflow!Pleasebesuretoanswerthequestion.Providedetailsandshareyourresearch!Butavoid…Askingforhelp,clarification,orrespondingtootheranswers.Makingstatementsbasedonopinion;backthemupwithreferencesorpersonalexperience.Tolearnmore,seeourtipsonwritinggreatanswers. Draftsaved Draftdiscarded Signuporlogin SignupusingGoogle SignupusingFacebook SignupusingEmailandPassword Submit Postasaguest Name Email Required,butnevershown PostYourAnswer Discard Byclicking“PostYourAnswer”,youagreetoourtermsofservice,privacypolicyandcookiepolicy Nottheansweryou'relookingfor?Browseotherquestionstaggedandroidiosopengl-esoraskyourownquestion. 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