SKShapeNode 消耗过多内存并减慢动画 -Spritekit iOS [英] SKShapeNode consuming too much memory and slowing down animation -Spritekit iOS

问题描述

我正在使用 SKShapeNode 来创建像山一样的对象.我使用 CGMutablePathRef 给我的路径点

I am using SKShapeNode to to create a mountain like object . I use CGMutablePathRef to give the points to my path

SKShapeNode *shapenode = [[SKShapeNode alloc] init];

CGMutablePathRef path = CGPathCreateMutable();
CGPathMoveToPoint(path, NULL, 0, 0);
......
for (int i = 0; i < [refData count];i++) {


    CGPathAddLineToPoint(path, NULL, ((float)i/[refData count])*screenWidthBoundry,      [[refData objectAtIndex:i] doubleValue]);
}


CGPathAddLineToPoint(path, NULL, screenWidthBoundry, 0);
CGPathAddLineToPoint(path, NULL, 0, 0);

shapenode.path = path;
shapenode.antialiased = YES;
shapenode.fillColor = [SKColor colorWithRed:17.0/255.0 green:108.0/255.0 blue:125.0/255.0 alpha:1.0];
//shapenode.strokeColor = [UIColor clearColor];

shapenode.lineWidth = 1.0f;

shapenode.physicsBody = [SKPhysicsBody bodyWithEdgeChainFromPath:path];

shapenode.physicsBody.affectedByGravity = NO;
shapenode.physicsBody.categoryBitMask = CollisionTypeMountain;
shapenode.physicsBody.collisionBitMask = 0;
shapenode.physicsBody.contactTestBitMask = CollisionTypeBird;

CGPathRelease(path);
return shapenode;

我的问题是 SkShapeNode 会减慢 iPhone 4 上的动画速度(在 iPad 和 iPhone 5 上运行流畅，但仍然不是 60 fps)并消耗大量内存.我可以缓存 skshapnode 对象以顺利运行动画吗?任何帮助表示赞赏！

My Problem is that SkShapeNode is slowing down the animation on iPhone 4 (runs smoothly on iPad and iPhone 5 but still not 60 fps) and consuming lot of memory. Can I cache skshapnode object to run animation smoothly ? Any Help is appreciated !!

推荐答案

我遇到了同样的问题，SKShapeNodes 消耗过多的 cpu 资源并杀死帧率.使用您的 SKView 的 textureFromNode: 方法创建一个 SKTexture.现在使用您的视图生成的 SKTexture 创建一个 SKSpriteNode.这将解决您的性能问题.

I was running into the same problem with SKShapeNodes consuming too much cpu resources and killing the framerate. Use your SKView's textureFromNode: method to create an SKTexture. Now create an SKSpriteNode with the SKTexture your view generated. This will fix your performance issues.

从 SKShapeNode 创建 SKTexture

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