草庐IT

vertex_descriptor

全部标签

go - 对于结构顶点,map[int]vertex 和 map[int]*vertex 有什么区别?

要定义一个从int到structvertex的映射,我应该定义map[int]vertex还是map[int]*vertex?首选哪一个?我扩展了Chickencha的代码:packagemaintypevertexstruct{x,yint}funcmain(){a:=make(map[int]vertex)b:=make(map[int]*vertex)v:=&vertex{0,0}a[0]=*vb[0]=vv.x,v.y=4,4println(a[0].x,a[0].y,b[0].x,b[0].y)//a[0].x=3//cannotassignto(a[0]).x//a[0].

【unity】URP的shader开发中支持多光源,_ADDITIONAL_LIGHTS_VERTEX 和 _ADDITIONAL_LIGHTS 区别

项目里有一个其他同事实现的shader,美术那边希望能支持多个光源,我一看代码里面,frag函数里已经实现了  #ifdef_ADDITIONAL_LIGHTS uintpixelLightCount=GetAdditionalLightsCount(); for(uintlightIndex=0u;lightIndex代码也加了:         #pragmamulti_compile__ADDITIONAL_LIGHTS_VERTEX_ADDITIONAL_LIGHTS材质里加了这个keyword还是没起作用,  若宏控制注了有效。 一开始没搞明白……想到很可能这个

docker 启动报错 library initialization failed - unable to allocate file descriptor table - out of memory

docker启动报错libraryinitializationfailed-unabletoallocatefiledescriptortable-outofmemory1.报错日志libraryinitializationfailed-unabletoallocatefiledescriptortable-outofmemory/cm-server/aiboxCloud-web/boot/entrypoint.sh:line2:6Aborted(coredumped)java-Xms1024m-Xmx2048m-jar-XX:+PrintGCDateStamps-XX:+PrintGCDet

MySQL - 0 [错误] 接受错误 : Bad file descriptor

最近在Debian(Debian3.2.78-1x86_64GNU/Linux)上升级到MySQL5.7.12,每隔几个小时就会遇到服务器挂起的情况。这在系统日志和mysql.log中被淹没了:2016-06-13T18:05:20.261209Z0[错误]接受错误:文件描述符错误MySQL信息:mysqlVer14.14Distrib5.7.12-5,用于使用6.2的debian-linux-gnu(x86_64)my.cnfmysqld部分可以指导调整值的一些帮助:[mysqld]max_allowed_packet=64Mthread_stack=256Kthread_cache

MySQL - 0 [错误] 接受错误 : Bad file descriptor

最近在Debian(Debian3.2.78-1x86_64GNU/Linux)上升级到MySQL5.7.12,每隔几个小时就会遇到服务器挂起的情况。这在系统日志和mysql.log中被淹没了:2016-06-13T18:05:20.261209Z0[错误]接受错误:文件描述符错误MySQL信息:mysqlVer14.14Distrib5.7.12-5,用于使用6.2的debian-linux-gnu(x86_64)my.cnfmysqld部分可以指导调整值的一些帮助:[mysqld]max_allowed_packet=64Mthread_stack=256Kthread_cache

linux - linux 控制台错误 : Couldn't get a file descriptor referring to the console

当我启动终端时,我看到的前2条消息是:Couldn'tgetafiledescriptorreferringtotheconsoleCouldn'tgetafiledescriptorreferringtotheconsole然后从控制台提示,仅此而已,当键入setfont时也会出现此问题:[gyok@localhost~]$setfontCouldn'tgetafiledescriptorreferringtotheconsole如果我转到Ctrl+Alt+F2终端,一切正常并且没有此消息,root控制台中的情况相同,那么你能帮我修复这个问题吗?我有Fedora21和Gnome,我的

linux - linux 控制台错误 : Couldn't get a file descriptor referring to the console

当我启动终端时,我看到的前2条消息是:Couldn'tgetafiledescriptorreferringtotheconsoleCouldn'tgetafiledescriptorreferringtotheconsole然后从控制台提示,仅此而已,当键入setfont时也会出现此问题:[gyok@localhost~]$setfontCouldn'tgetafiledescriptorreferringtotheconsole如果我转到Ctrl+Alt+F2终端,一切正常并且没有此消息,root控制台中的情况相同,那么你能帮我修复这个问题吗?我有Fedora21和Gnome,我的

已解决TypeError: Descriptors cannot not be created directly.

已解决TypeError:Descriptorscannotnotbecreateddirectly.Ifthiscallcamefroma_pb2.pyfile,yourgeneratedcodeisoutofdateandmustberegeneratedwithprotoc>=3.19.0.Ifyoucannotimmediatelyregenerateyourprotos,someotherpossibleworkaroundsare:1.Downgradetheprotobufpackageto3.20.xorlower.2.SetPROTOCOL_BUFFERS_PYTHON_IM

已解决TypeError: Descriptors cannot not be created directly.

已解决TypeError:Descriptorscannotnotbecreateddirectly.Ifthiscallcamefroma_pb2.pyfile,yourgeneratedcodeisoutofdateandmustberegeneratedwithprotoc>=3.19.0.Ifyoucannotimmediatelyregenerateyourprotos,someotherpossibleworkaroundsare:1.Downgradetheprotobufpackageto3.20.xorlower.2.SetPROTOCOL_BUFFERS_PYTHON_IM

c++ - 如何使用 libusb 和 libusb_get_device_descriptor()?

我正在学习第一次在Ubuntu12.10上使用libusbv1.0.0。这是我用来尝试了解如何使用此API的一些小测试代码:#include...libusb_device**list;libusb_get_device_list(ctx,&list);//Returns11USBdeviceswhichiscorrect.for(size_tidx=0;list[idx]!=NULL;idx++){libusb_device*dev=list[idx];libusb_device_descriptordesc={0};intrc=libusb_get_device_descripto