目前flash矢量图形到html5的转换,一般有两种方式: 1.转换为位图,例如:png,jpg。 2.转换为html5支持的矢量格式,例如:svg或canvas矢量绘图命令。 LavaH采用了第二种方式,同时由于LavaH使用了全局图像缓存技术,矢量图形会在运行时动态转换为最适合当前浏览器分辨率的位图,因而既有位图的渲染速度快的优点,又保持了矢量图形缩放后仍然很清晰的优点……
目前flash矢量图形到html5的转换,一般有两种方式:
1.转换为位图,例如:png,jpg。
2.转换为html5支持的矢量格式,例如:svg或canvas矢量绘图命令。
方式1渲染速度快,但是无法自适应各种屏幕分辨率,如果按大屏分辨率保存矢量图形,则占用空间大,如果按小屏分辨率保存矢量图形,则在大屏上浏览时,图形模糊或者马赛克效应严重。如果一个矢量图形在游戏中有缩放行为,由于图像是按固定分辨率保存的,所以无法做到清晰缩放。而且位图格式相比矢量格式占用空间巨大,下载到客户端消耗的流量也就大很多。
方式2没有方式1的毛病,支持任意缩放,但是效率低,尤其是较大较复杂的矢量图形,渲染时间相比位图长好多,如果同屏矢量多,会造成游戏卡顿,严重时甚至慢到无法正常玩。
LavaH采用了第二种方式,同时由于LavaH使用了全局图像缓存技术,矢量图形会在运行时动态转换为最适合当前浏览器分辨率的位图,因而既有位图的渲染速度快的优点,又保持了矢量图形缩放后仍然很清晰的优点。
看看这个例子:逃出发明家的房子,点击图形可运行。
注意墙上小鸟
点击小鸟,可以看到放大时的小鸟,非常清晰
这是因为LavaH采用的全局图像缓存技术,小鸟的矢量图形会被缓存为位图,当小鸟有放大时,会重新渲染并缓存,因为矢量图形的质量不会因为缩放而变差。
博文最后更新时间:
评论
发表评论
个人资料
姓名:李杰。
爱好:编程,慢跑。
2001年来北京发展,从事软件开发17年。
文曲星Lava语言的创造者。
Iava&LavaX跨平台语言的发明者。
Mirage引擎之父。
手机拳皇97高清版主程序。
What do you study? https://www.burleighbears.com.au/stmap_24pkcjjq.html?esidrix.levitra.itraconazole ibuprofeno 800 san pablo Then there are directors of rugby being prevented from criticising the referee. Why can’t they say after a game: “I thought the referee got this wrong?” Then there can be a conversation with the sole purpose of improving the standard of refereeing, instead of the directors of rugby remaining silent and then receiving an apology later in the week.
I'll put her on https://www.system32solutions.com.mx/stmap_18jbbvts.html?cialis.propecia.desyrel.vpxl atorvastatina torrino And while it's showing acres of decolletage, shoulders and back, it maintains Iggy's modesty by being full length. In fact this is pretty demure for the Australian rapper who is known for flashing the flesh at every opportunity.
Gloomy tales https://www.system32solutions.com.mx/stmap_18jbbvts.html?levitra.zenerx.lanoxin.kytril can fucidin h cream be used for thrush Yet despite conditions in the euro zone, an upturn in demandhas led to order books growing in recent months, albeit from lowlevels, while a U.S. recovery is on firmer ground after a roughpatch around the turn of the year as public spending was cut.
How many would you like? http://www.dethstruck.com/stmap_18qnetae.html?methocarbamol.propranolol.menosan.viagra esomeprazole label claim Under the "change of control" clause, Elop, who has stepped down from his role as CEO to avoid a conflict of interest, is entitled to 18 months of his base salary plus a short-term management cash incentive, equivalent to a total of around 4.2 million euros.
I'd like to pay this in, please https://www.ebbersgroenprojecten.nl/stmap_24pkcjjq.html?loratadine.carafate.viagra minoxidil vs nioxin In Christopher Dyson, he had engaged a top estate agent, or “realtor”. “He’s originally from Manchester – he found houses for Robbie Williams and Gordon Ramsay. I stressed I didn’t have their budgets but made it clear what I was after,” he says.
Hold the line, please http://www.dethstruck.com/stmap_37lbquli.html?acyclovir.mofetil.levitra wikipedia citalopram The spacewalkers also aimed to install jumper cables that will enable electricity to be rerouted, with the flip of a switch inside the station, in the event of power generator or cooling system failures. And they had planned to do the following: