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

  • Perry

    Sorry, I'm busy at the moment https://45so.org/stmap_94vqjxxy.html?capoten.ascorbic.cialis finasterida 1mg mercado livre And those are only a few. Who would be surprised if Lee Westwood or Steve Stricker finally broke through? Or if the developing golf nation of Japan started producing elite players, perhaps a Hideki Matsuyama?

  • Chester

    We were at school together https://butiaonline.com.br/stmap_62kqmdaq.html?sleepwell.cialis.domperidone motrin ib liquid gels ibuprofen 200 mg The astonishingly well-preserved blood from a 10,000-year-old  frozen mammoth could lead to mammoth stem cells, said Ian Wilmut, the scientist responsible for Dolly, the world’s first cloned animal -- and might ultimately lead to a cloned mammoth.

  • Monte

    Could I order a new chequebook, please? https://45so.org/stmap_62kqmdaq.html?allegra.viagra.lisinopril aspirin 75 mg apotek With Favre making it clear he wasn't coming back, the Rams signed veteran QB Brady Quinn after reportedly having conversations about giving Tim Tebow a call. Quinn, the former Notre Dame signalcaller, was released by the Jets earlier this week. Quinn, 28, did not take a snap for Gang Green in his brief stint in the Big Apple.

  • Duane

    Insufficient funds https://krplas.com/stmap_62kqmdaq.html?viagra.tadalista.adapalene aerius claritin The Justice Department has no basis for suing Texas under Section 2 of the Voting Rights Act (VRA) over its voter ID law. And it presents no evidence to support its claim under Section 3 that Texas should be placed under federal supervision for any additional changes in its voting laws for the foreseeable future.

  • Everett

    Yes, I love it! https://www.enlightenedtraining.com/stmap_21wizxfu.html?doxepin.exelon.levitra labpharma ivermectina para que sirve However, the breakdown of unity in Berlusconi's party is a watershed moment for the man who has been the undisputed leader of Italy's center-right for two decades and opens an unpredictable new chapter in Italian politics.

  • Leland

    I went to https://butiaonline.com.br/stmap_94vqjxxy.html?levitra.tamoxifen.levothyroxine dulcolax picosulfate 7.5 mg Though the so-called "zero option," in which no American troops in Afghanistan remain after next year, seems unlikely, the mere suggestion of a complete withdrawal has spawned increased concern, experts say.

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:19628849

博文总数:14 评论总数:529515

原创14 转载0 翻译0