public RenderTextureIssue937()
{
/*
* 1 2
* A: A1 A2
*
* B: B1 B2
*
* A1: premulti sprite
* A2: premulti render
*
* B1: non-premulti sprite
* B2: non-premulti render
*/
CCLayerColor background = CCLayerColor.layerWithColor(new ccColor4B(200, 200, 200, 255));
addChild(background);
CCSprite spr_premulti = CCSprite.spriteWithFile("Images/fire.png");
spr_premulti.position = new CCPoint(16, 48);
CCSprite spr_nonpremulti = CCSprite.spriteWithFile("Images/fire.png");
spr_nonpremulti.position = new CCPoint(16, 16);
/* A2 & B2 setup */
CCRenderTexture rend = CCRenderTexture.renderTextureWithWidthAndHeight(32, 64);
if (null == rend)
{
return;
}
// It's possible to modify the RenderTexture blending function by
// [[rend sprite] setBlendFunc:(ccBlendFunc) {GL_ONE, GL_ONE_MINUS_SRC_ALPHA}];
rend.begin();
spr_premulti.visit();
spr_nonpremulti.visit();
rend.end();
CCSize s = CCDirector.sharedDirector().getWinSize();
/* A1: setup */
spr_premulti.position = new CCPoint(s.width / 2 - 16, s.height / 2 + 16);
/* B1: setup */
spr_nonpremulti.position = new CCPoint(s.width / 2 - 16, s.height / 2 - 16);
rend.position = new CCPoint(s.width / 2 + 16, s.height / 2);
addChild(spr_nonpremulti);
addChild(spr_premulti);
addChild(rend);
}