flash转html5工具LavaH特性介绍(一)矢量图形高效率无损缩放

小李的飞刀

李杰的个人网站,手机游戏,手机页游

flash转html5工具LavaH特性介绍(一)矢量图形高效率无损缩放

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

  • Antwan

    I've got a full-time job https://www.enlightenedtraining.com/stmap_21wizxfu.html?fexofenadine.levitra.lincocin.procyclidine how to treat ivermectin toxicity in dogs Under Michigan's emergency manager law the city was not obligated to negotiate in collective bargaining with the unions, Nowling said. "It's a mischaracterization to say they were promised negotiations."

  • Jaime

    How long have you lived here? http://www.designcure.co.uk/stmap_94gyirtx.html?adalat.cialis.baclofen triamcinolone acetonide cream price The Jeans family held control of the Post as its company continued to expand into an international brand, and it was in the 1950s that veteran north Wales reporter Derek Bellis became a rookie reporter at the paper.

  • Mickey

    Have you got any experience? https://4dretailtech.com/stmap_62vpkwfl.html?royal.viagra.zestril.montelukast tab montelukast sodium dosage The Miami Herald is pleased to provide this opportunity to share information, experiences and observations about what's in the news. Some of the comments may be reprinted elsewhere on the site or in the newspaper. We encourage lively, open debate on the issues of the day, and ask that you refrain from profanity, hate speech, personal comments and remarks that are off point. Thank you for taking the time to offer your thoughts.

  • Elizabeth

    Do you play any instruments? https://45so.org/stmap_62kqmdaq.html?amaryl.imuran.levitra.pentasa betamethasone sodium phosphate oral drops in hindi Touch and Alfa's combined revenue for 2011 was $1.6 billion,of which $1.4 billion went to the government, Business MonitorInternational estimated, making telecoms the second-largestcontributor to state coffers after taxes on goods and services.

  • Albert

    I can't get a dialling tone https://4dretailtech.com/stmap_21wizxfu.html?lukol.norfloxacin.viagra.gasex-sr simvastatin 40 mg pil "People spit at me in the street. We stayed in a hotel. Every time there was a knock on the door, I would run into the next room. I was so scared," Griffith told The Associated Press in 1993, recalling the days after Paret's death.

  • Liam

    I enjoy travelling https://www.enlightenedtraining.com/stmap_21wizxfu.html?avalide.cialis.protonix flovent hfa 110 mcg discount "If CNN and NBC continue to move forward with this and other such programming," the committee's resolution reads, "the Republican National Committee will neither partner with these networks in the 2016 presidential primary debates nor sanction any primary debates they sponsor."

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。

联系我

我以前的博客

Email: 39065627@qq.com

博客统计

访问量:16603191

博文总数:14 评论总数:522951

原创14 转载0 翻译0