我有方法，可以创建3个多维数据集并为其加载3个纹理。 问题是-我不知道如何为不同的多维数据集设置不同的纹理。
创建多维数据集代码：
void CreateCubes(
LPDIRECT3DDEVICE9 &ptr_dxDevice,
LPDIRECT3DINDEXBUFFER9 &ptr_indexBuffer,
LPDIRECT3DVERTEXBUFFER9 &ptr_vertexBuffer
)
{
int cubeVertex = 8;
int cubesCount = 3;
int cubesFaces = cubesCount * 36;
//load textures
LoadTexture(ptr_dxDevice, ptr_dxCubeTexture, cubeTextureName);
LoadTexture(ptr_dxDevice, ptr_dxSphere1Texture, sphere1TextureName);
LoadTexture(ptr_dxDevice, ptr_dxSphere2Texture, sphere2TextureName);
// create the vertices using the CUSTOMVERTEX struct
CUSTOMVERTEX vertices[] =
{
{ -0.2f, 0.2f, -0.2f, dxRed, ((FLOAT)0) / (24 - 1), 1.0f },
{ 0.2f, 0.2f, -0.2f, dxGreen, ((FLOAT)1) / (24 - 1), 0.0f },
{ -0.2f, -0.2f, -0.2f, dxRed, ((FLOAT)2) / (24 - 1), 1.0f },
{ 0.2f, -0.2f, -0.2f, dxGreen, ((FLOAT)3) / (24 - 1), 0.0f },
{ -0.2f, 0.2f, 0.2f, dxRed, ((FLOAT)4) / (24 - 1), 1.0f },
{ 0.2f, 0.2f, 0.2f, dxGreen, ((FLOAT)5) / (24 - 1), 0.0f },
{ -0.2f, -0.2f, 0.2f, dxRed, ((FLOAT)6) / (24 - 1), 1.0f },
{ 0.2f, -0.2f, 0.2f, dxGreen, ((FLOAT)7) / (24 - 1), 0.0f },
{ 0.8f, 0.2f+0.5f, -0.2f-0.4f, dxRed, ((FLOAT)0+8) / (24 - 1), 1.0f },
{ 1.0f, 0.2f + 0.5f, -0.2f - 0.4f, dxYellow, ((FLOAT)1+8) / (24 - 1), 0.0f },
{ 0.8f, -0.2f + 0.5f, -0.2f - 0.4f, dxRed, ((FLOAT)2+8) / (24 - 1), 1.0f },
{ 1.0f, -0.2f + 0.5f, -0.2f - 0.4f, dxYellow, ((FLOAT)3+8) / (24 - 1), 0.0f },
{ 0.8f, 0.2f + 0.5f, 0.2f - 0.4f, dxRed, ((FLOAT)4+8) / (24 - 1), 1.0f },
{ 1.0f, 0.2f + 0.5f, 0.2f - 0.4f, dxYellow, ((FLOAT)5+8) / (24 - 1), 0.0f },
{ 0.8f, -0.2f + 0.5f, 0.2f - 0.4f, dxRed, ((FLOAT)6+8) / (24 - 1), 1.0f },
{ 1.0f, -0.2f + 0.5f, 0.2f - 0.4f, dxYellow, ((FLOAT)7+8) / (24 - 1), 0.0f },
{ 0.8f+1.0f, 0.2f + 0.8f, -0.2f + 0.4f, dxBlue, ((FLOAT)0+16) / (24 - 1), 1.0f },
{ 1.0f + 1.0f, 0.2f + 0.8f, -0.2f + 0.4f, dxYellow, ((FLOAT)1+16) / (24 - 1), 0.0f },
{ 0.8f + 1.0f, -0.2f + 0.8f, -0.2f + 0.4f, dxBlue, ((FLOAT)2+16) / (24 - 1), 1.0f },
{ 1.0f + 1.0f, -0.2f + 0.8f, -0.2f + 0.4f, dxYellow, ((FLOAT)3+16) / (24 - 1), 0.0f },
{ 0.8f + 1.0f, 0.2f + 0.8f, 0.2f + 0.4f, dxBlue, ((FLOAT)4+16) / (24 - 1), 1.0f },
{ 1.0f + 1.0f, 0.2f + 0.8f, 0.2f + 0.4f, dxYellow, ((FLOAT)5+16) / (24 - 1), 0.0f },
{ 0.8f + 1.0f, -0.2f + 0.8f, 0.2f + 0.4f, dxBlue, ((FLOAT)6+16) / (24 - 1), 1.0f },
{ 1.0f + 1.0f, -0.2f + 0.8f, 0.2f + 0.4f, dxYellow, ((FLOAT)7+16) / (24 - 1), 0.0f },
};
// create a vertex buffer interface called v_buffer
ptr_dxDevice->CreateVertexBuffer(
cubesCount * cubeVertex * sizeof(CUSTOMVERTEX),
0,
drawFVF,
D3DPOOL_MANAGED,
&ptr_vertexBuffer,
NULL);
VOID* pVoid; // a void pointer
// lock v_buffer and load the vertices into it
ptr_vertexBuffer->Lock(0, 0, (void**)&pVoid, 0);
memcpy(pVoid, vertices, sizeof(vertices));
ptr_vertexBuffer->Unlock();
// create the indices using an int array
short indices[] =
{
0, 1, 2, // side 1 //cube 1
2, 1, 3,
4, 0, 6, // side 2
6, 0, 2,
7, 5, 6, // side 3
6, 5, 4,
3, 1, 7, // side 4
7, 1, 5,
4, 5, 0, // side 5
0, 5, 1,
3, 7, 2, // side 6
2, 7, 6,
0 + 8, 1 + 8, 2 + 8, // side 1 // cube 2
2 + 8, 1 + 8, 3 + 8,
4 + 8, 0 + 8, 6 + 8, // side 2
6 + 8, 0 + 8, 2 + 8,
7 + 8, 5 + 8, 6 + 8, // side 3
6 + 8, 5 + 8, 4 + 8,
3 + 8, 1 + 8, 7 + 8, // side 4
7 + 8, 1 + 8, 5 + 8,
4 + 8, 5 + 8, 0 + 8, // side 5
0 + 8, 5 + 8, 1 + 8,
3 + 8, 7 + 8, 2 + 8, // side 6
2 + 8, 7 + 8, 6 + 8,
0 + 16, 1 + 16, 2 + 16, // side 1 // cube 3
2 + 16, 1 + 16, 3 + 16,
4 + 16, 0 + 16, 6 + 16, // side 2
6 + 16, 0 + 16, 2 + 16,
7 + 16, 5 + 16, 6 + 16, // side 3
6 + 16, 5 + 16, 4 + 16,
3 + 16, 1 + 16, 7 + 16, // side 4
7 + 16, 1 + 16, 5 + 16,
4 + 16, 5 + 16, 0 + 16, // side 5
0 + 16, 5 + 16, 1 + 16,
3 + 16, 7 + 16, 2 + 16, // side 6
2 + 16, 7 + 16, 6 + 16,
};
// create an index buffer interface called i_buffer
ptr_dxDevice->CreateIndexBuffer(cubesFaces * sizeof(short),
0,
D3DFMT_INDEX16,
D3DPOOL_MANAGED,
&ptr_indexBuffer,
NULL);
// lock i_buffer and load the indices into it
ptr_indexBuffer->Lock(0, 0, (void**)&pVoid, 0);
memcpy(pVoid, indices, sizeof(indices));
ptr_indexBuffer->Unlock();
ptr_dxDevice->SetFVF(drawFVF);
// select the vertex and index buffers to use
ptr_dxDevice->SetStreamSource(0, vertexBuffer, 0, sizeof(CUSTOMVERTEX));
ptr_dxDevice->SetIndices(ptr_indexBuffer);
....
接下来，我尝试使用纹理，但是结果是每个多维数据集仅应用了1个纹理。 代码：
//-
//texture1
ptr_dxDevice->SetTexture(0, ptr_dxCubeTexture);
ptr_dxDevice->SetTextureStageState(0, D3DTSS_COLOROP, D3DTOP_MODULATE);
ptr_dxDevice->SetTextureStageState(0, D3DTSS_COLORARG1, D3DTA_TEXTURE);
ptr_dxDevice->SetTextureStageState(0, D3DTSS_COLORARG2, D3DTA_DIFFUSE);
ptr_dxDevice->SetTextureStageState(0, D3DTSS_ALPHAOP, D3DTOP_DISABLE);
//texture2
ptr_dxDevice->SetTexture(1, ptr_dxSphere1Texture);
ptr_dxDevice->SetTextureStageState(1, D3DTSS_COLOROP, D3DTOP_MODULATE);
ptr_dxDevice->SetTextureStageState(1, D3DTSS_COLORARG1, D3DTA_TEXTURE);
ptr_dxDevice->SetTextureStageState(1, D3DTSS_COLORARG2, D3DTA_DIFFUSE);
ptr_dxDevice->SetTextureStageState(1, D3DTSS_ALPHAOP, D3DTOP_DISABLE);
//+
D3DXMATRIXA16 mTextureTransform;
D3DXMATRIXA16 mProj;
D3DXMATRIXA16 mTrans;
D3DXMATRIXA16 mScale;
ptr_dxDevice->GetTransform(D3DTS_PROJECTION, &mProj);
D3DXMatrixTranslation(&mTrans, 0.5f, 0.5f, 0.0f);
D3DXMatrixScaling(&mScale, 0.5f, -0.5f, 1.0f);
mTextureTransform = mProj * mScale * mTrans;
ptr_dxDevice->SetTransform(D3DTS_TEXTURE0, &mTextureTransform);
ptr_dxDevice->SetTextureStageState(1, D3DTSS_TEXTURETRANSFORMFLAGS, D3DTTFF_COUNT4 | D3DTTFF_PROJECTED);
ptr_dxDevice->SetTextureStageState(1, D3DTSS_TEXCOORDINDEX, D3DTSS_TCI_CAMERASPACEPOSITION);
//textures-
// draw the cubes
ptr_dxDevice->DrawIndexedPrimitive(D3DPT_TRIANGLELIST, 0, 0, 8 * cubesCount, 0, 12* cubesCount);
}
（功能结束）
因此，我想了解如何为每个多维数据集设置不同的纹理。 我有3个立方体和3个纹理，我想在一个场景中使用它们。
谢谢