Forums » Help » Scale

Hi,
I have a game who has an original size of 600*400px.
It's for an android tablet , so I put a scale factor to 2

ig.main( '#canvas', MyGame, 30, 600, 400, 2 );

It's nice when the scale is 1, but with 2 it's really dirty. The transparency of the images becomes purple, it's really slow,...
Should I double the size of my images to let the scale at 1 ?
do you have any advice ?

thx
Fabien

That really shouldn't happen and I've never seen this on Android devices.

You could try to scale the whole canvas with CSS instead of doing it in Impact:

#canvas {
    width: 1200px;
    height: 800px;

    /* this triggers hw accelerated scaling */
    -webkit-transform: scale3d(1, 1, 1) ;
}

Hi,
it works with this method but I lost my variable ig.system.scale.
So all my mouse coordinates are wrong, I have to divide them by 2.
Anyway, I have some great performances with impact 1.20 : 55 fps on ym tablet
nice !

thx
Fabien

By the way, that's really strange
The performances are really better when I scale with the CCS method.
I double my FPS

Strange isn't it ? Any idea why ?


Fabien

A lot of the 3D transforms are supported in hardware - thus the scale3D transform is probably hardware accelerated.

(2D transforms are not, that's why its recommended to rather use 3D transforms)