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Quellcode

float4x4 WorldMatrix;
float4x4 ViewMatrix;
float4x4 ProjMatrix;

struct vs_output
{
    float4 pos : POSITION;
    float4 color : TEXCOORD1;
};
vs_output vs_main(float4 pos : POSITION)
{
    vs_output outp;
    pos.w = 0.f; // erste mipmap ebene
    outp.pos = tex2Dlod(samp, pos);
    outp.pos = mul(outp.pos, WorldMatrix);
    outp.pos = mul(outp.pos, ViewMatrix);
    outp.pos = mul(outp.pos, ProjMatrix);
    outp.color = float4(1.f, 1.f, 1.f, 0.f);
    return outp;
}
float4 ps_main1(float4 col : TEXCOORD1) : COLOR
{
    return col;
}
TECHNIQUE T2
{
    PASS P1
    {
        VertexShader = compile vs_3_0 vs_main();
        PixelShader = compile ps_2_0 ps_main();
    }
}

C-/C++-Quelltext

// positionsdaten

float vertices[][4] = 
{
    {-1.f, 0.f, 0.f, 1.f},
    { 1.f, 0.f, 0.f, 1.f},
    { 0.f, 1.f, 0.f, 1.f},
};

// texturkoordinaten als XYZ getarnt

float pos[][4] =
{
    {1.f / 32.f, 0.f, 0.f, 0.f},
    {2.f / 32.f, 0.f, 0.f, 0.f},
    {3.f / 32.f, 0.f, 0.f, 0.f}
};

HRESULT hr;

// effekt erzeugen


hr = dev->CreateTexture(32, 32, 1, 0, D3DFMT_A32B32G32R32F, D3DPOOL_MANAGED, &postex, 0);

hr = dev->CreateVertexBuffer(sizeof(pos), 0, D3DFVF_XYZ | D3DFVF_DIFFUSE, D3DPOOL_MANAGED, &vertexbuffer, 0);


void *vptr;
hr = vertexbuffer->Lock(0, 0, &vptr, 0);
memcpy(vptr, pos, sizeof(pos));
vertexbuffer->Unlock();

D3DLOCKED_RECT lockedrect;
hr = postex->LockRect(0, &lockedrect, 0, 0);
memcpy(lockedrect.pBits, vertices, sizeof(vertices));
postex->UnlockRect(0);

// fehlerkontrolle gekürzt

C-/C++-Quelltext

dev->Clear(0, 0, D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER, D3DCOLOR_XRGB(0, 0, 0), 1.f, 0);
dev->BeginScene();

dev->SetStreamSource(0, vertexbuffer, 0, sizeof(float) * 4);
dev->SetRenderState(D3DRS_LIGHTING, 0);
dev->SetRenderState(D3DRS_CULLMODE, D3DCULL_NONE);
dev->SetFVF(D3DFVF_XYZ | D3DFVF_DIFFUSE);

dev->SetTexture(0, postex);

UINT passes;
effect->SetTechnique("T2");

effect->Begin(&passes, 0);

// matrizen wurden richtig gesetzt


effect->SetMatrix("WorldMatrix", &world);
effect->SetMatrix("ViewMatrix", &view);
effect->SetMatrix("ProjMatrix", &proj);

for (unsigned i = 0; i < passes; ++i)
{
    effect->BeginPass(i);
    dev->DrawPrimitive(D3DPT_TRIANGLELIST, 0, 1);
    effect->EndPass();
}

effect->End();

dev->EndScene();
dev->Present(0, 0, 0, 0);