实施后处理管理器
我一直在考虑如何在我的引擎中实现后处理管理器 (Vanquish)。
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我正在努力了解后处理技术的工作原理。我已经阅读并查看了 creators.xna.com 网站上的后处理示例，但这似乎重新 -应用后处理效果渲染模型。
我可以为静态模型添加此功能，但是当涉及到重新绘制蒙皮模型时，我会感到困惑，因为它们已经拥有自己的效果技术。< br>
有人可以帮助我理清思路，为我指明正确的方向吗？
I have been thinking about how to implement a PostProcessing manager into my engine (Vanquish).
I am struggling to get my head around how a Post Processing technique works. I have read and viewed the Post Processing sample on the creators.xna.com webiste, but this seems to re-render the model applying the Post Processing effect.
I can add this functionality for static models, but when it comes to redrawing the Skinned Models, I then get confused as they already have their own techniques to their effects.
Can someone help me straighten my thoughts by pointing me in the right direction?
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通常，后处理在整个屏幕上进行。这真的很简单。
您要做的就是在设备上设置渲染目标（我假设您可以弄清楚如何从示例创建渲染目标）：
从此时开始，您渲染的所有内容都将渲染到该渲染目标。完成后，您可以将设备设置回绘制到后台缓冲区：
最后，您可以使用渲染目标进行绘制，就好像它是纹理一样（这是 XNA 4.0 中的新功能，在 XNA 3.1 中您必须调用
GetTexture）。因此，要制作后处理效果：
SpriteBatch即可） - 处理效果。您听起来像是想为每个模型执行此操作？这看起来有点奇怪，但肯定是可能的。只需确保您的渲染目标首先具有透明的 Alpha 通道，然后使用 Alpha 混合进行绘制即可。
或者你根本不是指后期处理？您是否真的希望更改绘制模型所用的像素着色器，同时保留蒙皮模型顶点着色器？
Generally post-processing works over the entire screen. This is pretty simple, really.
What you do is set a render target on the device (I assume you can figure out how to create a render target from the sample):
From this point onward everything you render will be rendered to that render target. When you're done you can set the device back to drawing to the back buffer:
And finally you can draw using your render target as if it were a texture (this is new in XNA 4.0, in XNA 3.1 you had to call
GetTextureon it).So to making a post-processing effect:
SpriteBatchwill do) with a pixel shader that will apply your post-processing effect.You sound like you want to do this per model? Which seems kind of strange but certianly possible. Simply ensure your render target has a transparent alpha channel to begin with, and then draw it with alpha blending.
Or do you not mean post-processing at all? Do you actually wish to change the pixel shader the model is drawn with, while keeping the skinned model vertex shader?