Performance updates

Solar2D Daily Builds and Public Releases
#1

Hello,

Since version 20011.704, are there any improvements compared to the graphic pipeline?

In version 20011.704, i’m getting a very low fps with 1000+ circles. Is it possible to do such things in newer versions of Corona?

Erik
Inlusion [import]uid: 10863 topic_id: 25561 reply_id: 325561[/import]

#2

Hello, can you provide a little more info ?

  1. How are you displaying 1000 circles?
  2. are you using physics?

Etc
[import]uid: 84637 topic_id: 25561 reply_id: 103309[/import]

#3

By just creating more than 1000 objects. This can be a circle, a rect or an image.

Try this examples with a FPS script. On my ipad, the FPS drops down from 30 to 10.

Example 1

for i = 0, 35 do  
 for j = 0, 35 do  
 local circle = display.newCircle( 4, 4, 8 ) -- or display.newImage( "circle.png" )  
 circle.x = i\*16  
 circle.y = j\*16  
 end  
end

Example 2 - Paint till you get a low FPS

local function drawCircle( event )  
 local phase = event.phase  
  
 if phase == "began" or phase == "moved" then  
 local circle = display.newCircle( 4, 4, 8 ) -- or display.newImage( "circle.png" )  
 circle.x = event.x  
 circle.y = event.y  
 end  
end  
  
Runtime:addEventListener( "touch", drawCircle )

FPS script:
http://developer.anscamobile.com/code/output-fps-and-texture-memory-usage-your-app

A year ago, this problem was already known:
http://developer.anscamobile.com/forum/2011/03/26/batch-rendering

I think it has something to do with Corona and OpenGL. Other engines can draw 1000 times the same object, without losing much performance. [import]uid: 10863 topic_id: 25561 reply_id: 103337[/import]

#4

Can someone tell me whether it’s possible to do this in newer versions of Corona?

I need to know it for building a drawing app! [import]uid: 10863 topic_id: 25561 reply_id: 105517[/import]