CODEWITHSUNDEEP
iphoneioscocos2d-iphone
Rahul Lalit
Rahul Lalit

Reputation: 416

Drawing on image iphone using cocos2d-iphone

I am creating Drawing app for ipad using cocos2d-iphone its using CCRenderTexture for drawing. I am able to take screenshot of my drawing and saving it to application document directory.

but now I want to load this as my background image to draw over it,and can change the image,so basically I want to merge my image with my render texture I tried this but image is appearing below my rendertexture (with z=-1), I am not able to figure it out. Is there any way to do this? Thanks

Upvotes: 0

Views: 772

Answers (1)

Rahul Lalit
Rahul Lalit

Reputation: 416

so this is how i solved my problem

Step 1> created my RenderTexture

renderTexture = [[CCRendertexture alloc]initWithWidth:self.contentSize.width height:self.contentSize.height pixelFormat:kCCTexture2DPixelFormat_RGBA8888];
renderTexture.anchorPoint = ccp(0,0);
renderTexture.position = ccp(width*0.5,height*0.5f);

Step 2> Created CCSprite with background image

CCSprite *bgImage = [CCSprite spriteWithCGImage:myImage.CGImage key:imgkey];
bgImage.position = ccp(width*0.5f,height*o.5f);

Step3> This is important part in this

[renderTexture begin];
[bgImage visit];
[renderTexture end];

[self addChild:renderTexture]; // added to my layer as child

this tutorial helped me http://www.raywenderlich.com/4421/how-to-mask-a-sprite-with-cocos2d-1-0

I hope this will be helpful for someone

Upvotes: 1

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