some questions about coordinates Transformation

You mean that I can get the red area and change it to a texture ,then rendering?
But how to get it as a texture?

[jorrit]

You mean that I can get the red area and change it to a texture ,then rendering?
But how to get it as a texture?

I just told you. g3d->SetRenderTarget(). That way you can render on a texture.

Greetings,

I know, but the red area which I marked would be changed after the player is moving every frame. I need to render the changing every frame in another place.
And I can use "g3d->SetRenderTarget()" also?

[jorrit]

I know, but the red area which I marked would be changed after the player is moving every frame. I need to render the changing every frame in another place.
And I can use "g3d->SetRenderTarget()" also?

Yes, doing this every frame is no problem. It will be a HUGE deal faster then doing it one pixel at a time.

Greetings,

Thank you very much!!! I will try later!
You are so kind!