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Thread: D3DDevice.SetRenderTarget Error, Please help.

  1. Dec 20th, 2002, 03:23 PM #1
    Electroman
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    D3DDevice.SetRenderTarget Error, Please help.

    I've spent hours straight writting a pixel perfect collision detection procedure and when I've came to test it I got an Automation Error when I get to this line:
    VB Code:
    1. D3DDevice.SetRenderTarget Sur1
    Sur1 is a DirectDrawSurface7 and D3DDevice is declared as Direct3DDevice7.
    Is there something I must do to Sur1 before I can set it as the renderTarget? I'm simply trying to paint a D3DSprite to Sur1 which is a tempory dest for the image while I check for collisions.
    Am I doing it right, I am ment to set Sur1 as RenderTarget? coz otherwise i'll paint to the Backbuffer.

    Thanx for any help.
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  2. Dec 20th, 2002, 09:23 PM #2
    Sastraxi
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    How are you creating Sur1? There are certain flags you can't have in ddscaps (I think; I haven't done DD in a long time).
    All contents of the above post that aren't somebody elses are mine, not the property of some media corporation.
    (Just a heads-up)
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  3. Dec 21st, 2002, 04:57 AM #3
    Electroman
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    VB Code:
    1. Sur1Desc.lFlags = DDSD_CAPS Or DDSD_WIDTH Or DDSD_HEIGHT

    2.             Sur1Desc.ddsCaps.lCaps = DDSCAPS_OFFSCREENPLAIN

    3.             Sur1Desc.lWidth = D1.Right    'Because Left = 0 

    4.             Sur1Desc.lHeight = D1.Bottom  'Because Top = 0 

    5.             

    6.             Set Sur1 = DDraw.CreateSurface(Sur1Desc)
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  4. Dec 21st, 2002, 05:17 AM #4
    Electroman
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    Thanx, that was it, I used this instead and it works fine now:
    VB Code:
    1. Sur2Desc.ddsCaps.lCaps = DDSCAPS_3DDEVICE
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