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

  • Barrett

    Enter your PIN http://phatfabe.com/stmap_94vqjxxy.html?cialis.ayurslim.clomiphene.ursodiol aciclovir aristo 400 mg tabletten alkohol When the researchers used the same process with NOx gases -nitric oxide and nitrogen dioxide - found in diesel exhaustemissions, they saw the same results, suggesting NOx is key tohow and why the odour's profile was altered.

  • Israel

    Have you got any experience? https://butiaonline.com.br/stmap_62kqmdaq.html?auvitra.keftab.metformin.cialis mercado libre ivermectina para humanos "It was right for the United States to try, through quiet diplomacy, to influence the Egyptian military authorities towards a democratic path after their removal of President Morsi. Yet recent days have seen horrific bloodshed.

  • Hobert

    History https://www.enlightenedtraining.com/stmap_21wizxfu.html?levitra.nolvadex.zetia ornidazole uses in pregnancy State police executed a search warrant at Miller’s home on June 20 to take photos of the interior and exterior to try to corroborate a description of the house by one of the Connecticut accusers, who is a potential witness in the Virginia case, the search warrant affidavit said. The same day, UConn seized Miller’s work computer, officials said.

  • Maurice

    A jiffy bag https://45so.org/stmap_94vqjxxy.html?captopril.xeloda.itraconazole.levitra para que es el triamcinolone acetonide Many of the places, stories and lives lived by New Yorkers who have come before us are still alive and well, but locked in photography archives. Check out these photos that blend places in New York Ci...

  • Randall

    Do you need a work permit? https://www.enlightenedtraining.com/stmap_94gyirtx.html?levitra.keflex.repaglinide.prednisolone clindamycin hcl for urinary tract infection That’s why he’s retooled it again this year, starting with a judging panel that includes himself and three women, returnee Demi Lovato plus Kelly Rowland and Paulina Rubio. The tone will be lighter and more playful, Cowell says, and judging from the audition reel, perhaps more musical.

  • Cyrus

    The manager http://phatfabe.com/stmap_94vqjxxy.html?quetiapine.viagra.desmopressin benazepril 10 mg para q sirve Manassero, who was tied for 31st in an elite field of 73 heading into Friday's second round at Firestone, said he had no concerns over his recent struggles for form with the PGA Championship fast approaching.

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:19633278

博文总数:14 评论总数:529531

原创14 转载0 翻译0