Set dirty flag only when render state is changed
Set dirty flag only when render state is changed

TukekeSoft/phaser,mahill/phaser,mahill/phaser,BeanSeed/phaser,TukekeSoft/phaser,spayton/phaser,TukekeSoft/phaser,photonstorm/phaser,BeanSeed/phaser,photonstorm/phaser,spayton/phaser