Cocos2d-x3.0 RenderTexture (2)

. H

#include "cocos-ext.h"#include "ui/CocosGUI.h"#include "cocostudio/CocoStudio.h"USING_NS_CC;USING_NS_CC_EXT;using namespace ui;

. Cpp

Auto background = LayerColor: create (Color4B (200,200,200,255); addChild (background); auto s = Director: getInstance ()-> getWinSize (); auto spr_premulti = Sprite :: create ("fire.png"); spr_premulti-> setPosition (Point (s. width/2-16, s. height/2 + 36); auto spr_nonpremulti = Sprite: create ("fire.png"); spr_nonpremulti-> setPosition (Point (s. width/2-16, s. height/2-16 )); //// * A2 & B2 setup * // set the color to create parameter 1, color width 2, color height 3, color auto rend = RenderTexture :: create (s. width, s. height, Texture2D: PixelFormat: RGBA8888); auto spr_size = spr_premulti-> getContentSize (); rend-> setKeepMatrix (true); Size pixelSize = Director: getInstance () -> getWinSizeInPixels (); rend-> setVirtualViewport (Point (0, 0), Rect (0, 0, s. width, s. height), Rect (0, 0, pixelSize. width, pixelSize. height); // It's possible to modify the RenderTexture blending function by // [[rend sprite] setBlendFunc :( BlendFunc) {GL_ONE, GL_ONE_MINUS_SRC_ALPHA}]; rend-> begin (); spr_premulti-> visit (); spr_nonpremulti-> visit (); rend-> end (); rend-> setPosition (Point (s. width/2 + 56, s. height/2); addChild (spr_premulti); addChild (spr_nonpremulti); addChild (rend );