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tbResult InitScene()
{
HRESULT hResult;
if (FAILED(hResult = g_pD3DDevice->SetFVF(D3DFVF_XYZ | D3DFVF_DIFFUSE)))
{
TB_ERROR_DIRECTX("g_pD3DDevice->SetFVF", hResult, TB_ERROR);
}
// RenderStates setzen
g_pD3DDevice->SetRenderState(D3DRS_LIGHTING, FALSE);
g_pD3DDevice->SetRenderState(D3DRS_CULLMODE, D3DCULL_NONE);
g_pD3DDevice->SetRenderState(D3DRS_DITHERENABLE, TRUE);
// Angaben für die Projektionsmatrix
float fAspectRatio = g_Direct3DParameters.VideoMode.Width / g_Direct3DParameters.VideoMode.Height;
tbMatrix mProjektionsMatrix = tbMatrixProjection(TB_DEG_TO_RAD(90.0f), fAspectRatio, 0.1f, 100.0f);
g_pD3DDevice->SetTransform(D3DTS_PROJECTION, (D3DMATRIX*)(&mProjektionsMatrix));
// Das Dreieck definieren
g_aTriangleVertex[0].vPosition = tbVector3(-1.0f, 1.0f, 0.0f);
g_aTriangleVertex[1].vPosition = tbVector3(1.0f, 1.0f, 0.0f);
g_aTriangleVertex[2].vPosition = tbVector3(1.0f, -1.0f, 0.0f);
g_aTriangleVertex[3].vPosition = tbVector3(-1.0f, -1.0f, 0.0f);
g_aTriangleVertex[0].dwColor = tbColor(1.0f, 0.0f, 0.0f);
g_aTriangleVertex[1].dwColor = tbColor(0.0f, 1.0f, 0.0f);
g_aTriangleVertex[2].dwColor = tbColor(0.0f, 0.0f, 1.0f);
g_aTriangleVertex[3].dwColor = tbColor(1.0f, 1.0f, 1.0f);
return TB_OK;
}
tbResult Render(float fNumSecsPassed)
{
HRESULT hResult;
tbMatrix mRotation(tbMatrixRotationY(TB_DEG_TO_RAD(g_fTime * 90.0f)));
tbMatrix mTranslation(tbMatrixTranslation(tbVector3(0.0f, 0.0f, 2.0f)));
// Multiplikation von Rotations- mit Translationsmatrix
tbMatrix mWorld (mRotation * mTranslation);
// Einsetzen der Matrix in die Weltmatrix
g_pD3DDevice->SetTransform(D3DTS_WORLD, (D3DMATRIX*)(&mWorld));
// Den Bildbuffer und den Z-Buffer leeren
if (FAILED(hResult =g_pD3DDevice->Clear(0, NULL, D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER, D3DCOLOR_XRGB(0,0,63), 1.0f, 0)))
{
TB_ERROR_DIRECTX("g_pD3DDevice->Clear", hResult, TB_STOP);
}
// Zeichnen des Dreiecks
g_pD3DDevice->BeginScene();
if (FAILED(hResult = g_pD3DDevice->DrawPrimitiveUP(D3DPT_TRIANGLESTRIP, 1, g_aTriangleVertex, sizeof(SVertex))))
{
TB_ERROR_DIRECTX("g_pD3DDevice->DrawIndexedPrimitiveUP", hResult, TB_STOP);
}
g_pD3DDevice->EndScene();
g_pD3DDevice->Present(NULL, NULL, NULL, NULL);
return TB_OK;
}
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