话说Laya3D怎么自定义shader来实现后期处理呢?

185*****024

我参考Laya源码的Bloom后期处理的代码, 虽然我继承 PostProcessEffect 后能拿到每帧渲染后的图像, 但是经过shader处理后, 怎么输出到屏幕呢?

我以为可以通过直接给 destination 赋值就行了, 但是没用!!

代码如下:

185*****024

还有我发现这句代码没用啊,,, 通过shader处理没有起作用啊

cmd.blitScreenTriangle(sourceTexture, destTexture, null, this._shader, this._shaderData, 0);

MQ

Try......................
render(context: { command: any; camera: { viewport: any; }; source: Laya.RenderTexture; deferredReleaseTextures: any; })
{
.......

        var sourceTex = context.source;
        var targetTex = Laya.RenderTexture.createFromPool(tw, th, Laya.RenderTexture.FORMAT_R8G8B8, Laya.RenderTexture.FORMAT_DEPTHSTENCIL_NONE, Laya.BaseTexture.FILTERMODE_BILINEAR);
        cmd.blitScreenTriangle(sourceTex, targetTex, null, this.mShader, this.mShaderData, 0);
        context.source = targetTex;
        Laya.RenderTexture.recoverToPool(targetTex);
        context.deferredReleaseTextures.push(sourceTex);
    }