Directx9 methods of drawing models
I was wondering if there is any other method beside the classical
DrawIndexedPrimitive
Dra开发者_如何学GowIndexedPrimitiveUP
DrawPrimitive
DrawPrimitiveUP
DrawRectPatch
DrawTriPatch
for drawing models on the screen.
if you mean that model is a mesh (set of vertex and textures) and you have file with that model you can try something like this:
// Loading the mesh
LPD3DXBUFFER materialBuffer = NULL;
DWORD numMaterials = 0;
LPD3DXMESH mesh = NULL;
hr=D3DXLoadMeshFromX("d:\\temp\\tiger.x", D3DXMESH_SYSTEMMEM,
d3dDevice, NULL,
&materialBuffer,NULL, &numMaterials,
&mesh );
if(FAILED(hr))
THROW_ERROR_AND_EXIT("hr=D3DXLoadMeshFromX");
// Loading the material buffer
D3DXMATERIAL* d3dxMaterials = (D3DXMATERIAL*)materialBuffer->GetBufferPointer();
// Holding material and texture pointers
D3DMATERIAL9 *meshMaterials = new D3DMATERIAL9[numMaterials];
LPDIRECT3DTEXTURE9 *meshTextures = new LPDIRECT3DTEXTURE9[numMaterials];
// Filling material and texture arrays
for (DWORD i=0; i<numMaterials; i++)
{
// Copy the material
meshMaterials[i] = d3dxMaterials[i].MatD3D;
// Set the ambient color for the material (D3DX does not do this)
meshMaterials[i].Ambient = meshMaterials[i].Diffuse;
// Create the texture if it exists - it may not
meshTextures[i] = NULL;
if (d3dxMaterials[i].pTextureFilename)
D3DXCreateTextureFromFile(d3dDevice, d3dxMaterials[i].pTextureFilename, &meshTextures[i]);
}
materialBuffer->Release();
//render mesh
d3dDevice->Clear(0,NULL,D3DCLEAR_TARGET, D3DCOLOR_XRGB(255,255,255),1.0f,0);
// Turn on wireframe mode
d3dDevice->SetRenderState(D3DRS_FILLMODE,D3DFILL_WIREFRAME);
d3dDevice->BeginScene();
for (DWORD i=0; i<numMaterials; i++)
{
// Set the material and texture for this subset
d3dDevice->SetMaterial(&meshMaterials[i]);
d3dDevice->SetTexture(0,meshTextures[i]);
// Draw the mesh subset
mesh->DrawSubset( i );
}
d3dDevice->EndScene();
d3dDevice->Present(NULL, NULL, NULL, NULL);
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