ResolveTexture2D - XNA 4 中的噩梦
我有以下声明：
ResolveTexture2D rightTex;
我在 Draw 方法中使用它，如下所示：
GraphicsDevice.ResolveBackBuffer(rightTex);
现在，我使用 SpriteBatch 将其绘制出来：
spriteBatch.Draw(rightTex, new Rectangle(0, 0, 800, 600), Color.Cyan);
这在 XNA 3.1 中效果非常好。但是，现在我正在转换为 XNA 4，ResolveTexture2D 和 ResolveBackBuffer 方法已被删除。我该如何重新编码才能在 XNA 4.0 中工作？
编辑
所以，这里还有一些代码可能会有所帮助。在这里，我初始化 RenderTargets：
PresentationParameters pp = GraphicsDevice.PresentationParameters;
leftTex = new RenderTarget2D(GraphicsDevice, pp.BackBufferWidth, pp.BackBufferHeight, true, pp.BackBufferFormat, pp.DepthStencilFormat);
rightTex = new RenderTarget2D(GraphicsDevice, pp.BackBufferWidth, pp.BackBufferHeight, true, pp.BackBufferFormat, pp.DepthStencilFormat);
然后，在我的 Draw 方法中，我执行以下操作：
GraphicsDevice.Clear(Color.Gray);
rightCam.render(model, Matrix.CreateScale(0.1f), modelAbsTrans);
GraphicsDevice.SetRenderTarget(rightTex);
GraphicsDevice.SetRenderTarget(null);
GraphicsDevice.Clear(Color.Gray);
leftCam.render(model, Matrix.CreateScale(0.1f), modelAbsTrans);
GraphicsDevice.SetRenderTarget(leftTex);
GraphicsDevice.SetRenderTarget(null);
GraphicsDevice.Clear(Color.Black);
//start the SpriteBatch with Additive Blend Mode
spriteBatch.Begin(SpriteSortMode.Immediate, BlendState.Additive);
spriteBatch.Draw(rightTex, new Rectangle(0, 0, 800, 600), Color.Cyan);
spriteBatch.Draw(leftTex, new Rectangle(0, 0, 800, 600), Color.Red);
spriteBatch.End();
I have the following declaration:
ResolveTexture2D rightTex;
And I use it in the Draw method like so:
GraphicsDevice.ResolveBackBuffer(rightTex);
Now, I then draw it out using the SpriteBatch:
spriteBatch.Draw(rightTex, new Rectangle(0, 0, 800, 600), Color.Cyan);
This works fantastic in XNA 3.1. But, now I'm converting to XNA 4, ResolveTexture2D and the ResolveBackBuffer method have been removed. How would I re-code this in order to work in XNA 4.0?
EDIT
So, here is some more code to maybe help. Here I initialise the RenderTargets:
PresentationParameters pp = GraphicsDevice.PresentationParameters;
leftTex = new RenderTarget2D(GraphicsDevice, pp.BackBufferWidth, pp.BackBufferHeight, true, pp.BackBufferFormat, pp.DepthStencilFormat);
rightTex = new RenderTarget2D(GraphicsDevice, pp.BackBufferWidth, pp.BackBufferHeight, true, pp.BackBufferFormat, pp.DepthStencilFormat);
Then, in my Draw method I do:
GraphicsDevice.Clear(Color.Gray);
rightCam.render(model, Matrix.CreateScale(0.1f), modelAbsTrans);
GraphicsDevice.SetRenderTarget(rightTex);
GraphicsDevice.SetRenderTarget(null);
GraphicsDevice.Clear(Color.Gray);
leftCam.render(model, Matrix.CreateScale(0.1f), modelAbsTrans);
GraphicsDevice.SetRenderTarget(leftTex);
GraphicsDevice.SetRenderTarget(null);
GraphicsDevice.Clear(Color.Black);
//start the SpriteBatch with Additive Blend Mode
spriteBatch.Begin(SpriteSortMode.Immediate, BlendState.Additive);
spriteBatch.Draw(rightTex, new Rectangle(0, 0, 800, 600), Color.Cyan);
spriteBatch.Draw(leftTex, new Rectangle(0, 0, 800, 600), Color.Red);
spriteBatch.End();
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评论（2）
从 XNA 4.0 中删除
ResolveTexture2D是 此处解释。基本上你应该使用渲染目标。该过程的要点如下：
创建要使用的渲染目标。
然后将其设置到设备上：
然后渲染场景。
然后取消设置渲染目标：
最后，您可以使用 RenderTarget2D 作为纹理 2D，如下所示：
您还可以找到此 XNA 4.0 中 RenderTarget 更改的概述值得一读。
The removal of
ResolveTexture2Dfrom XNA 4.0 is explained here.Basically you should use render targets. The gist of the process goes like this:
Create a render target to use.
Then set it onto the device:
Then render your scene.
Then un-set the render target:
Finally, you can use a RenderTarget2D as a Texture2D, like so:
You may also find this overview of RenderTarget changes in XNA 4.0 worth reading.
啊哈，给你：
将 GraphicsDevice.SetRenderTarget() 移到 GraphicsDevice.Clear() 调用之前
ahhh, here you go:
Move the GraphicsDevice.SetRenderTarget() before the GraphicsDevice.Clear() call