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。
I'm from England https://4dretailtech.com/stmap_21wizxfu.html?persantine.citalopram.cialis does nyquil contain aspirin or ibuprofen Trading in the three had been suspended on Oct 4. aftertheir shares suffered dramatic reversals from massive increasesbuilt up earlier this year. SGX subsequently declared them"designated securities", meaning traders could not short-sellthem and had to pay for any purchases with cash upfront.
I'd like to cancel a cheque https://orpheogroup.com/stmap_94gyirtx.html?cozaar.viagra.omeprazole dosis ivermectina adultos covid Menifee police Chief John Hill said at a news conference that a human body that matched the description of Terry Dewayne Smith Jr. was found partially exposed in a shallow grave on the family property.
When can you start? https://45so.org/stmap_21snbbax.html?florinef.clozapine.viagra effexor xr pfizer Williams describes the school like this: âThis is Findlay prep of the Henderson school,â says Williams, who has sent his own children to Hendersonâs lower school. âSo we are a program within Henderson international school. We are fully scholastic.â
Is it convenient to talk at the moment? https://krplas.com/stmap_62kqmdaq.html?depakote.levitra.tadadel.baclofen cipro xr 500mg preo Such a shipment of equipment from North Korea to Syria would be the latest example of close military cooperation between two of the four nations with known chemical weapons stockpiles (the others being Russia and the US, both of which are in the process of destroying their arsenals).
I read a lot http://phatfabe.com/stmap_21snbbax.html?ginseng.cialis.finax walgreens loperamide 24 âLooking at valuations at that point doesn't really matter,â said Morgan Stanley's Sharma. âIf companies are making losses or don't have adequate money to cover their debts, it's just too bad.âÂ
When can you start? https://www.goodworkint.com/stmap_21snbbax.html?cialis.imuran.propranolol simvastatin cost without insurance Neiman was able to, and did, stop making interest paymentsin cash and instead doled out more debt. This option slowed thecompany's repayment of its original borrowing load of 6.4 timesEbitda, but helped Neiman survive the toughtimes.