//----------------------------------------------------------------------------------
// dump material textures
void DumpTexture(m_material *pMat, IGameMaterial *pGMaxMat)
{
std::vector<tex_channel> bk_tex_channel;
std::vector<unsigned int> bk_tex_idx;
std::vector<MatTextureInfo> TexInfos;
int texCount = pGMaxMat->GetNumberOfTextureMaps();
for (int i = 0; i < texCount; ++i)
{
IGameTextureMap * pGMaxTex = pGMaxMat->GetIGameTextureMap(i);
int tex_type = pGMaxTex->GetStdMapSlot();
if (pGMaxTex->IsEntitySupported() && tex_type >= 0) //its a bitmap texture
{
MatTextureInfo TexInfo;
tex_channel tc;
TexInfo.mat_id = pMat->id;
m_texture * pTex = new m_texture;
std::string pathname = pGMaxTex->GetBitmapFileName();
int idx = (int)pathname.rfind('\\');
if (idx == INDEX_NONE){
idx = (int)pathname.rfind('/');
}
std::string filename = pathname.substr(idx + 1, INDEX_NONE);
pTex->name = filename;
// set the texture xform...
IGameUVGen *pUVGen = pGMaxTex->GetIGameUVGen();
GMatrix UVMat = pUVGen->GetUVTransform();
TexInfo.tex_mat = pTex->tex_mat = (scalar*)UVMat.GetAddr(); // save mapping matrix
// get the uv channel to use...
Texmap *pTMap = pGMaxTex->GetMaxTexmap();
BitmapTex *pBTex = (BitmapTex*)pTMap;
StdUVGen *pStdUVGen = pBTex->GetUVGen();
if (pStdUVGen){
tc.channel = pStdUVGen->GetMapChannel() - 1;
}
IParamBlock2 *pUVWCropParam = (IParamBlock2*)(pBTex->GetReference(1));
if (pUVWCropParam)
{
pUVWCropParam->GetValue(0, ExporterMAX::GetExporter()->GetStaticFrame(), TexInfo.uv_offset.x, FOREVER);
pUVWCropParam->GetValue(1, ExporterMAX::GetExporter()->GetStaticFrame(), TexInfo.uv_offset.y, FOREVER);
pUVWCropParam->GetValue(2, ExporterMAX::GetExporter()->GetStaticFrame(), TexInfo.uv_scale.x, FOREVER);
pUVWCropParam->GetValue(3, ExporterMAX::GetExporter()->GetStaticFrame(), TexInfo.uv_scale.y, FOREVER);
}
// set the type of texture...
pTex->type = texture_type[tex_type];
// if we have a bump map, we create a normal map with the convention
// that the filename will be the same name as the bump map + "_normal"
// appended to it.
if (pTex->type == m_texture::BUMP)
{
std::string normal_map = pTex->name;
std::string::size_type pos = normal_map.rfind(".");
normal_map.insert(pos, "_normal");
m_texture *pTexNormal = new m_texture;
*pTexNormal = *pTex;
pTexNormal->name = normal_map;
pTexNormal->type = m_texture::NORMAL;
tc.pTex = pTexNormal;
bk_tex_channel.push_back(tc); // add the new texture to the local TOC
TexInfos.push_back(TexInfo);
}
tc.pTex = pTex;
bk_tex_channel.push_back(tc); // add the new texture to the local TOC
TexInfos.push_back(TexInfo);
}
}
// lets check if we don't have them already in our global TOC...
for (size_t index = 0; index < bk_tex_channel.size(); ++index)
{
m_texture * pTex = bk_tex_channel[index].pTex;
unsigned int idx = ExporterMAX::GetExporter()->FindTexture(pTex);
if (idx == INDEX_NONE){
idx = ExporterMAX::GetExporter()->AddTexture(pTex); // add the new texture to the TOC
}
bk_tex_idx.push_back(idx);
pMat->tex_channel.push_back(bk_tex_channel[index].channel);
TexInfos[index].base_channel = bk_tex_channel[index].channel;
bk_texs.insert(IdxBKTexMapPair(idx, TexInfos[index]));
}
// set the texture indices...
for (size_t index = 0; index < bk_tex_idx.size(); ++index){
pMat->textures.push_back(bk_tex_idx[index]);
}
}
