SetRenderTarget将不起作用 [英] SetRenderTarget won't work

问题描述

我正在尝试渲染到屏幕外的表面，所以我这样做:


-------------------------------------------------
d3ddev-> GetRenderTarget(0，&backbuffer);
d3ddev-> CreateOffscreenPlainSurface(64，64，D3DFMT_A8R8G8B8，D3DPOOL_SYSTEMMEM，&surface，NULL);
...
d3ddev-> SetRenderTarget(0，surface);
d3ddev-> Clear(0，NULL，D3DCLEAR_TARGET，D3DCOLOR_XRGB(70，90，0)，1.0f，0);

RECT rect;
rect.left = 0;
rect.top = 0;
rect.right = 63;
rect.bottom = 63;

D3DXVECTOR2 spriteCenter(32.0f，32.0f);
D3DXVECTOR2 trans(0，0);
D3DXMATRIX矩阵;
D3DXVECTOR2缩放比例(1.0f，1.0f);

D3DXMatrixTransformation2D(&matrix，&spriteCenter，0.0f，&scaling，&spriteCenter，tank.rotation，&trans);
sprite-> SetTransform(&matrix);
sprite-> Draw(纹理，&rect，NULL，NULL，0xFFFFFFFF);

sprite-> Flush();
...
d3ddev-> SetRenderTarget(0，backbuffer);
-----------------------------------------

但这不起作用，精灵在屏幕的左上角变白了.我尝试添加dev-> beginscene/endscene，sprite-> begin/end，但一无所获.

I''m trying to render to an off-screen surface, so i do:


-------------------------------------------------
d3ddev->GetRenderTarget(0, &backbuffer);
d3ddev->CreateOffscreenPlainSurface(64, 64, D3DFMT_A8R8G8B8, D3DPOOL_SYSTEMMEM, &surface, NULL);
...
d3ddev->SetRenderTarget(0, surface);
d3ddev->Clear(0, NULL, D3DCLEAR_TARGET, D3DCOLOR_XRGB(70, 90, 0), 1.0f, 0);

RECT rect;
rect.left = 0;
rect.top = 0;
rect.right = 63;
rect.bottom = 63;

D3DXVECTOR2 spriteCenter(32.0f, 32.0f);
D3DXVECTOR2 trans(0, 0);
D3DXMATRIX matrix;
D3DXVECTOR2 scaling(1.0f, 1.0f);

D3DXMatrixTransformation2D(&matrix, &spriteCenter, 0.0f, &scaling, &spriteCenter, tank.rotation, &trans);
sprite->SetTransform(&matrix);
sprite->Draw(texture, &rect, NULL, NULL, 0xFFFFFFFF);

sprite->Flush();
...
d3ddev->SetRenderTarget(0, backbuffer);
-----------------------------------------

But it won''t work, the sprites are blitted on the top-left corner of my screen. I tried adding dev->beginscene/endscene, sprite->begin/end, but nothing.

what''s wrong?

推荐答案

D3DXVECTOR2 trans(0，0);

让trans(X，Y)

D3DXVECTOR2 trans(0, 0);

Where trans(X,Y)

这样说:甚至可以D3DXSPRITE-> Draw到屏幕外的表面吗?还是仅仅到后缓冲区?

如果有人可以链接某人或发布规则的完整代码

Let''s put it this way: is it even possible to D3DXSPRITE->Draw to an off-screen surface? or just to the backbuffer?

if somebody can link a tut or post complete code that''d rule

在这里... ^ ]

问候

Here...http://www.toymaker.info/Games/html/sprites.html[^]

Regards

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