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。
Is there ? https://www.qnez.net/stmap_21wizxfu.html?levitra.silagra.phenytoin first lansoprazole goodrx Victoria already loved anything old and was told off by her parents for “poking about” in the house. She didn’t see eye to eye with Groves the butler either. At her first formal dinner she asked her father, “Are we so poor now that we have to eat off tin?” Behind her, Groves muttered, “Stupid child.” The dishes were, of course, silver.
The manager https://www.enlightenedtraining.com/stmap_62vpkwfl.html?atomoxetine.cialis.albenza indinavir mechanism of action “It would creep him out and would scare him,” she said of her new physical appearance. ”So, to snap [him] out of it and be like, ‘No, mommy’s here, I’m back.’”
I came here to study https://45so.org/stmap_62kqmdaq.html?tazalis.viagra.isoniazid.progestogen 50 mg topamax The brand showcases the workouts of famous celebrities and athletes including Giants star Justin Tuck and NFL Hall-of-Famer Deion Sanders. Through music and sports, the goal is to inspire and motivate people to make health and wellness a priority.
I came here to study https://4dretailtech.com/stmap_62vpkwfl.html?metronidazole.acarbose.viagra adco etoricoxib uses In addition, we continue to expand our digital marketing capabilities to drive subscription sales, including several successful Facebook and Google customer campaigns. As a testament to the appeal of those products to a wide variety of customers, we've added about 6,000 new digital-only subscribers as a result of the rollout of our college digital subscription program earlier this year. The very first schools we approached about this opportunity, Florida State University in Tallahassee and the University of Cincinnati, are now providing digital subscriptions to their students and faculty. As a result, we now have 65,000 digital-only subscribers. And even more significantly, 1.3 million subscribers, or nearly half of our total customer base, have now activated their digital access. This is a key takeaway for us as it further corroborates our earlier projections.
I work for a publishers https://krplas.com/stmap_94vqjxxy.html?levitra.kemadrin.digoxin.orlistat benzac nz "They basically were running a 1996 to 2000 style campaign in the 2008 era," says Jamal Simmons, a Democratic strategist who worked with both the Al Gore and Bill Clinton presidential campaigns, of Hillary's 2008 race. "So it looks like they are trying to infuse new talent and adopt some new practices for the modern era of campaigning."
I'm doing a masters in law https://45so.org/stmap_62kqmdaq.html?tazalis.viagra.isoniazid.progestogen venlafaxine er and hair loss Manchin, in a Fox News interview on the "The O'ReillyFactor," called for a transition year with no fines. "Let's workthrough the problems. We've got a lot of problems, they havebeen identified. I think everybody has recognized them. Let'sfix it. Let's get together and fix things," he said.