Go cross-platform OpenGL bindings. | GolangRepo

Package gl is a Go cross-platform binding for OpenGL, with an OpenGL ES 2-like API. It supports: ... This is a fork of golang.org/x/mobile/gl ... Actualmiddlewares Argo Audio&Music Authentication&OAuth Benchmarks MoreCategories BotBuilding BuildTools Caching CloudComputing CodeAnalysis CommandLine Command-lineOptionParsers Compiler Compression Configuration ConsoleUserInterface ContinuousIntegration Cryptography DataProcessing DataStructures DataVisualization Database DatabaseDrivers Databaseschemamigration. 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Lastupdate:Dec6,2021 Relatedtags Imagestools webgl opengl opengl-es Overview gl PackageglisaGocross-platformbindingforOpenGL,withanOpenGLES2-likeAPI. Itsupports: macOS,LinuxandWindowsviaOpenGL2.1backend, iOSandAndroidviaOpenGLES2.0backend, ModernBrowsers(desktopandmobile)viaWebGL1.0backend. Thisisaforkofgolang.org/x/mobile/glpackagewithCL8793mergedinandWindowssupportadded.Thispackageisfullyfunctional,butmayeventuallybecomesupercededbythenewx/mobile/glplan.Itwillexistandbefullysupporteduntilitcanbesafelyreplacedbyabetterpackage. Installation goget-ugithub.com/goxjs/gl/... GOARCH=jsgoget-u-dgithub.com/goxjs/gl/... Usage ThisOpenGLbindinghasaContextWatcher,whichimplementsglfw.ContextWatcherinterface.Recommendedusageiswithgithub.com/goxjs/glfwpackage,whichacceptsaContextWatcherinitsInit,andtakesontheresponsibilityofnotifyingitwhencontextismadecurrentordetached. iferr:=glfw.Init(gl.ContextWatcher);err!=nil{ //Handleerror. } deferglfw.Terminate() Ifyou'renotusingaContextWatcher-awareglfwlibrary,youmustcallmethodsofgl.ContextWatcheryourselfwheneveryoumakeacontextcurrentordetached. window.MakeContextCurrent() gl.ContextWatcher.OnMakeCurrent(nil) glfw.DetachCurrentContext() gl.ContextWatcher.OnDetach() Issues gl.InitcalledwithoutacurrentcontextonWindowsbackend,andfails. IgavetheWindowsbuildatry,andunfortunatelywegetafatalerroronstartupinitializinggl: gl.Init:glActiveTexture Ibelievetheproblemisthatgl.InitmustbecalledafterMakeCurrentContextaswglGetProcAddressrequiresaboundcontext:Whennocurrentrenderingcontextexistsorthefunctionfails,thereturnvalueisNULL. Originallyreportedinhttps://github.com/google/gxui/pull/86#issuecomment-107037914. openedbydmitshur10 UnabletoGetCurrentFrameBufferInWebgl TherearepointswhereIneedtogetthecurrentframebuffer,bindanother,thenbindthefirstonehoweverrightnowitisnotreallypossibletodothatinwebgl.NormallyIwouldcallgl.GetInteger(gl.FRAMEBUFFER_BINDING)butthatalwaysreturns0andwontallowmetobindtoit.Accordingtothishttps://developer.mozilla.org/en-US/docs/Web/API/WebGLRenderingContext/bindFramebufferIwouldneedtocallgetParameteronthecontexttogetthecurrentframebuffer.ItishardtonameasolutiontothissinceaddingaGetCurrentFrameBuffer()methodwouldchangethewholeapi.AlsoIwasthinkingexposingthecontextsoIcancallanyfunctiononitbutagainthatdoesnotworkforauniformAPI. LetmeknowifIhavemissedasolution,thatcouldbepossibleaswell. thinking  openedbytanema9 headless anyplanstosupportheadlessgl? enhancement helpwanted  openedbyghost8 Suggestion:addbasicexamples. anychanceongettingsomebasicexamples,tohaveabasetoworkfrom? iamquiteexcitedaboutthisprojectandeagertoseehowwellopenglandwebglcanworktogether. enhancement  openedbyjoeblew997 JSTexImage2DproducesTypeError TypeError:Argument9ofWebGLRenderingContext.texImage2DdoesnotimplementinterfaceArrayBufferViewOrNullonFirefox42.0andUncaughtTypeError:Failedtoexecute'texImage2D'on'WebGLRenderingContext':parameter9isnotoftype'ArrayBufferView'onChrome48.0.2564.109. AFAIKthedataparameterofgl.TexImage2Disa[]bytewhichbecomesaUint8ArrayinGopherJS...whichshouldsatisfytheWebGLstandardwhichcallsforanArrayBufferView. Forcomparison,gl.BufferDatatakesa[]byteandworksfine.TheonlydifferenceIcanseeisthattheWebGLspecforbufferDataspecifiesaBufferDataSource?(whichisdefinedasanArrayBufferVieworanArrayBufferinthespec)andnotanArrayBufferView?typeforthedataparameter. openedbynytehauq6 implementallremained"panic"methods Ididn'tcreatetestprogramsbutIjusttestedviacompiler.Therearenosyntaxandtypeerrors. openedbyshibukawa6 Differencewithwebgl? Whatsthedifferencebetweenthislibraryhttps://github.com/ajhager/webglandyoursitseemsbothsupportthesamefunctionalityandAPI,andbotharecrossplatformandIseeyoumadeacommittherealso question  openedbypyros20976 SupportedOpenGLversion ItseemsoddthatyouareusingOpenGL2.1fordesktopsbutES2formobile.Doesn'ttheES2specbasicallymatchOpenGL3.3?IstheremoredetailthatI'mmissing? question  openedbydelaneyj4 Can'tgetsecondattributelocation Hi, Itookthetriangleexampleandjustaddedthelinesbellow: ... attributevec3aVertexPosition; attributevec3aVertexPosition2; ... vertexPositionAttrib:=gl.GetAttribLocation(program,"aVertexPosition") fmt.Printf("vertexPositionAttrib=%d",vertexPositionAttrib) vertexPositionAttrib2:=gl.GetAttribLocation(program,"aVertexPosition2") fmt.Printf("vertexPositionAttrib2=%d",vertexPositionAttrib2) ... IbuilditwithgopherjsandthevalueofvertexPositionAttrib2is-1. DidImissedsomething? Regards, Marc question  openedbybombjackm4 DoesanyonewantWindowssupport? RightnowthispackagesupportsOSX,Linux,andbrowsers. Windowsiscurrentlynotsupported.Icanadditveryeasily,itwouldtakemeanhourorso,butIwouldn'twanttospendtimeonitunlesspeopleactuallywant/needit(Idon'tuseWindowsmyself). Ifyou'reusingthispackage(orconsideringit)andwantWindowsbackendadded,justleavea+1here. enhancement  openedbydmitshur3 Wasm UpdatethewasmbranchtoworkwithmorerecentdependenciesandtrytoreducecodedifferenceforuserofthepackagebetweentheGopherjsuseandWasmuse. openedbyBluebugs2 MaintenanceandSupersession Thispackageisfullyfunctional,butmayeventuallybecomesupercededbythenewx/mobile/glplan. Yet,over4yearsafterthatsentencewaswritten,Icouldn'tfindanyupdatesonWebGLsupportbeingaddedtothegolang.org/x/mobile/glpackage. Isthereactuallyanyworkatallbeingdonewiththat(andIjustmissedit),orissupersessionbyx/mobile/glentirelyahypothetical? Ifit'sthelatter,itmightbeabouttimethattheREADMEseesanotherupdatetomoreaccuratelyreflectthecurrentstateofthispackage..? openedbylunabunn1 README:stopsuggestingGOARCH=jsgogetsinceitnolongerworks Iamsorry,thismaybeverybasicbutIamtryingtousethislibraryandItrytorun GOARCH=jsgoget-u-dgithub.com/goxjs/gl/... IgetunsupportedGOOS/GOARCHpairdarwin/jsIhavetriedaseriesofpairslikejs/jsor/jsorjs/darwinandIgetthesamemessageeverytime. AmIdoingsomethingwrong?doesthelibraryneedtobeupdated? openedbytanema5 Updatetonewest"golang.org/x/mobile/gl" I'mcurrentlyinvestigatingmyoptionsforwritinganOpenGLapplicationforbothdesktopandwebandthisrepositoryseemsthebethebestcandidate-goodwork! Itisawhilesinceitwasforkedfrom"golang.org/x/mobile/gl"anditseemsthattherewerequitesomemajorchanges-addingWebGLsupportwasn'toneofthem. OnechangeIlikeparticularlyistherender-thread:Applicationsuseaglctx-objectthatexposestheOpenGLfunctionality,butthecallstothatcontextareonlypushedintoachannelandexecutedlaterbyadedicatedrenderthread.Thisimprovesmultithreading/go-routinesupportgreatly. I'mnotabletouse"golang.org/x/mobile/gl"duetothelackofWebGLsupport(Idon'tneedtosupportmobile).AndIalsodon'tlikethefactthatdesktopapplicationsrequiretheANGLEdllsinsteadofusingtheOpenGLbindingsfromgo-gl-butIcanlivewiththat. Isitpossibleforgoxjstoadaptthosefeaturesortobeupdatedtothenewestversionofgolang.org/x/mobile/gl? Whichchangeswouldberequiredtodoso? enhancement  openedbymaja423 AddWebAssemblysupport. ThischangeisaworkinprogressonaddingsupportforWebAssemblytopackagegl,whilemaintainingGopherJSsupport. It'sdonebydifferentiatingcodeforWebAssembly(whichusessyscall/jsAPI)fromexistingcodeforGopherJS(whichusesgithub.com/gopherjs/gopherjs/jsAPI)withthefollowingbuildconstraints: _js.go //+buildjs,!wasm ...GopherJScode... _wasm.go //+buildjs,wasm ...WebAssemblycode... IthasbeendevelopedandtestedprimarilywiththeHoverandeX0-goprojects. openedbydmitshur0 Attrib.Valueisintforwebglanduintforopengl? Inattemptingtocross-compileaprogramforbothWebGLandDesktopOpenGL,I'venoticedthattheAttribtypeisuintfortheformer,andintforthelatter.Thismakesitalittlehardtomanipulatetheseinaportableway. Isthereatechnicalreasonwhythesearedifferent,orcouldtheybebroughtintoalignment? openedbyswiftcoder5 PlansforWebGL2 IsthereanyplansforWebGL2? question  openedbyignishub3 GetTexParameterfv,similarGetfuncargumentsarenotinlinewithOpenGLspec. Thefuncsingoxjs/glhavedestinationfirst,butOpenGLspectendstohaveitlast. Thinkaboutthis,whetherit'sanissueornot,andhowitcanberesolved,ifatall. openedbydmitshur0 FailsonRaspberryPi(go1.5linux/arm). gogetgithub.com/goxjs/gl github.com/goxjs/gl code/go/src/github.com/goxjs/gl/gl_opengles.go:24:ContextWatcherredeclaredinthisblock previousdeclarationatcode/go/src/github.com/goxjs/gl/gl_opengl.go:17 code/go/src/github.com/goxjs/gl/gl_opengles.go:26:contextWatcherredeclaredinthisblock previousdeclarationatcode/go/src/github.com/goxjs/gl/gl_opengl.go:19 code/go/src/github.com/goxjs/gl/gl_opengles.go:29:contextWatcher.OnDetachredeclaredinthisblock previousdeclarationatcode/go/src/github.com/goxjs/gl/gl_opengl.go:33 code/go/src/github.com/goxjs/gl/gl_opengles.go:31:ActiveTextureredeclaredinthisblock previousdeclarationatcode/go/src/github.com/goxjs/gl/gl_opengl.go:38 code/go/src/github.com/goxjs/gl/gl_opengles.go:35:AttachShaderredeclaredinthisblock previousdeclarationatcode/go/src/github.com/goxjs/gl/gl_opengl.go:45 code/go/src/github.com/goxjs/gl/gl_opengles.go:39:BindAttribLocationredeclaredinthisblock previousdeclarationatcode/go/src/github.com/goxjs/gl/gl_opengl.go:53 code/go/src/github.com/goxjs/gl/gl_opengles.go:45:BindBufferredeclaredinthisblock previousdeclarationatcode/go/src/github.com/goxjs/gl/gl_opengl.go:60 code/go/src/github.com/goxjs/gl/gl_opengles.go:49:BindFramebufferredeclaredinthisblock previousdeclarationatcode/go/src/github.com/goxjs/gl/gl_opengl.go:67 code/go/src/github.com/goxjs/gl/gl_opengles.go:53:BindRenderbufferredeclaredinthisblock previousdeclarationatcode/go/src/github.com/goxjs/gl/gl_opengl.go:74 code/go/src/github.com/goxjs/gl/gl_opengles.go:57:BindTextureredeclaredinthisblock previousdeclarationatcode/go/src/github.com/goxjs/gl/gl_opengl.go:81 code/go/src/github.com/goxjs/gl/gl_opengles.go:57:toomanyerrors` enhancement helpwanted  openedbycarlTLR11 Owner Gocross-platformpackages. GitHubRepository Gocross-platformglfwlibraryforcreatinganOpenGLcontextandreceivingevents. glfwPackageglfwexperimentallyprovidesaglfw-likeAPIwithdesktop(viaglfw)andbrowser(viaHTML5canvas)backends.ItisusedforcreatingaG 71Aug6,2021 GobindingsforOpenGL(generatedviaglow) glThisrepositoryholdsGobindingstovariousOpenGLversions.Theyareauto-generatedusingGlow.Features:GofunctionsthatmirrortheCspecific 851Dec10,2021 GobindingstoOpenGLUtilityLibrary GLUThispackageoffersminimalbindingsforGLUfunctions.Usagegogetgithub.com/go-gl-legacy/glu LicenseCopyright2012Thego-glAuthors.Allri 21Aug18,2018 golangOpenGLhelperfunctions glh:golangOpenGLhelpersThispackagecontainsanumberoffunctionsusefulforapplicationsusingOpenGL.CodeReferenceFeaturesTexturesandText 23Oct28,2021 OpenGLbindinggeneratorforGo GoGLGoGLisanOpenGLbindinggeneratorforGo.NoexternaldependencieslikeGLEWareneeded.InstalltheOpenGLbindingsForexample,OpenGL2.1bi 138Jul15,2021 Quake2LevelRendererwritteninGoandOpenGL go-quake2Quake2MapRendererwritteninGoandOpenGL.FeaturesLoadsanyBSPfilefromQuake2FreeroamaroundtheenvironmentRendersonlyasmal 24Nov18,2021 CanvasisaGodrawinglibrarybasedonOpenGLorusingsoftwarerenderingthatisverysimilartotheHTML5canvasAPI GocanvasCanvasisapureGolibrarythatprovidesdrawingfunctionalityassimilaraspossibletotheHTML5canvasAPI.IthasnothingtodowithHT 398Dec10,2021 APongclonemadefromscratchwithGoandCusingOpenGL3.3 Go-PongAPongvideogameclonemadewithGolangandOpenGL3.3usingC.GameplayOfflineKeybindingsare'w'and's'fortheleftplayerand'upar 32Dec13,2021 OpenGLrenderer oglrAboutoglrisapackageforGotoloadOpenGLfunctionsandrendergraphics.Itispublishedonhttps://github.com/vbsw/oglr.CopyrightCopyright 0Nov21,2021 Across-platformtooltoconvertimagesintoasciiartandprintthemontheconsole Across-platformtooltoconvertimagesintoasciiartandprintthemontheconsole 633Dec13,2021 GobindingsforGLFW3 GLFW3.3forGoInstallationGLFWClibrarysourceisincludedandbuiltautomaticallyaspartoftheGopackage.Butyouneedtomakesureyouhaved 1.2kDec8,2021 GobindingsforGLFW3 GLFW3.3forGoInstallationGLFWClibrarysourceisincludedandbuiltautomaticallyaspartoftheGopackage.Butyouneedtomakesureyouhaved 1.2kDec4,2021 GobindingsforaudiocaptureandplaybackwithALSAandlibasound GoALSAbindingsThesebindingsallowcaptureandplaybackofaudioviaALSAusingthealsa-liblibrary.Installationgogetgithub.com/cocoonlife/goa 34Oct8,2021 naivegobindingstoGnuPlot go-gnuplotSimple-mindedfunctionstoworkwithgnuplot.go-gnuplotrunsgnuplotasasubprocessandpushescommandsviatheSTDINofthatsubprocess. 26Nov8,2021 go-gtk3-GTK3BINDINGSFORGO go-gtk3-GTK3BINDINGSFORGOTHISIS:HopefullyGTK3BindingsusinggobjectbindingforGo. Goalistohavefairlycompletegtk3widgets withpango 57May25,2021 ExperimentalOpenALbindingsforGo. ExperimentalOpenALbindingsforGo. ==================================== Everythingisevolvingquicklyandnothingistotallydone. Ifyouwantto 30May25,2021 GobindingsforOpenCV/2.xAPIingocv/1.xAPIinopencv GoOpenCVbindingAGolangbindingforOpenCV.OpenCV1.xCAPIbindingsthroughCGO,andOpenCV2+C++API(GoCV)throughSWIG.DisclaimerThisisa 1.3kDec9,2021 GobindingsforGStreamer(retired:currentlyIdon'tuse/developthispackage) Retired.Idon'tuse/developthispackageanymore.GobindingsforGStreamerataveryearlystageofmaturity.ThispackageisbasedonGLibbindings 162Nov10,2021 GobindingsforlibVLCandhigh-levelmediaplayerinterface GobindingsforlibVLC2.X/3.X/4.Xandhigh-levelmediaplayerinterface.Thepackagecanbeusefulforaddingmultimediacapabilitiestoapplications 261Nov30,2021