(VS 2008 C++) DirectX9 DrawPrimitiveUp problems [SOLVED]
Author
This is my custom vertex -
D3DFVF_XYZRHW|D3DFVF_DIFFUSE|D3DFVF_TEX1
which creates
struct TLVertex
{
float X,Y,Z,Rhw;
int Colour;
float tU, tV;
};
TLVertex Tlv[4];
For some odd reason, this piece of code wont draw - NOTE: This code DOES NOT generate any errors!
(All I'm trying to draw is a textured square!)
//Do validate device routine
if(ValidateDevice != S_OK)
{
MessageBox(0,"Problem with validating the device.","Error",0);
return 0;
}
d3ddevice->Clear( 0, NULL, D3DCLEAR_TARGET, D3DCOLOR_XRGB(0,0,0), 1.0f, 1 );
if FAILED(d3ddevice->BeginScene())
{
MessageBox(0,"Failed to begin the scene!","Wow its your unlucky day",0);
return 0;
}
Tlv[0].X = 0;
Tlv[1].X = Tlv[0].X + 32;
Tlv[2].X = Tlv[0].X;
Tlv[3].X = Tlv[1].X;
Tlv[0].Y = 0;
Tlv[1].Y = Tlv[0].Y;
Tlv[2].Y = Tlv[0].Y + 32;
Tlv[3].Y = Tlv[2].Y;
for(int i = 0;i<=3,++i)
{
Tlv.Colour = -1;
Tlv.Rhw = 1;
}
Tlv[0].tU = 0; Tlv[0].tV = 0;
Tlv[1].tU = 1; Tlv[1].tV = 0;
Tlv[2].tU = 0; Tlv[2].tV = 1;
Tlv[3].tU = 1; Tlv[3].tV = 1;
if (TextureNo != LastTexture)
{
d3ddevice->SetTexture(0,(LPDIRECT3DTEXTURE9)TextureData[TextureNo]); //Since TextureData is an int pointer.
LastTexture = TextureNo;
}
d3ddevice->DrawPrimitiveUP(D3DPT_TRIANGLESTRIP,2,&Tlv[0],28); //Sizeof Tlv is 28.
if FAILED(d3ddevice->EndScene())
{
MessageBox(0,"EndScene failed to...end?","Error!",0);
return 0;
}
d3ddevice->Present(NULL,NULL,NULL,NULL);
return 255;
*PS - whats the format code to place my code in a easy to read box? Sorry for bad wording choice*
[Edited by - MichaelJackson on April 1, 2008 8:40:25 PM]
There's an error-lookup app in the SDK that should be able to tell you what the error means. Like Cranny said, not setting the FVF is probably your problem.
Author
OK! I solved my own problem.. OOPS.
I realsied I removed a piece of code while initiziating.
@Cranny76, I do not need to constantly call up SetFVF - but it was your advice that actually helped me solve my problem. The thing is - I restructured my code, and moved the 'Render State settings' to a different routine - I forgot to call that routine when I initialised DirectX!!
God large code sucks!
Now that I have done it - it works perfectly fine!!!
Sorry for wasting your time. A stupid mistake on my behalf.
I realsied I removed a piece of code while initiziating.
@Cranny76, I do not need to constantly call up SetFVF - but it was your advice that actually helped me solve my problem. The thing is - I restructured my code, and moved the 'Render State settings' to a different routine - I forgot to call that routine when I initialised DirectX!!
God large code sucks!
Now that I have done it - it works perfectly fine!!!
Sorry for wasting your time. A stupid mistake on my behalf.
This topic is closed to new replies.
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