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update : implement obj-support for normal maps. 

refactoring : some improvements for more readable code.

Signed-off-by: Kim <Kulling>
pull/17/head
Kim 2013-01-26 14:11:57 +01:00
parent 0f781516bf
commit fbe408dd2e
3 changed files with 41 additions and 31 deletions
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1
code/ObjFileData.h
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@ -157,6 +157,7 @@ struct Material
aiString textureSpecular;
aiString textureAmbient;
aiString textureBump;
aiString textureNormal;
aiString textureSpecularity;
aiString textureOpacity;
aiString textureDisp;

3
code/ObjFileImporter.cpp
View File

@ -556,6 +556,9 @@ void ObjFileImporter::createMaterials(const ObjFile::Model* pModel, aiScene* pSc
if ( 0 != pCurrentMaterial->textureBump.length )
mat->AddProperty( &pCurrentMaterial->textureBump, AI_MATKEY_TEXTURE_HEIGHT(0));
if ( 0 != pCurrentMaterial->textureNormal.length )
mat->AddProperty( &pCurrentMaterial->textureNormal, AI_MATKEY_TEXTURE_NORMALS(0));
if ( 0 != pCurrentMaterial->textureDisp.length )
mat->AddProperty( &pCurrentMaterial->textureDisp, AI_MATKEY_TEXTURE_DISPLACEMENT(0) );

68
code/ObjFileMtlImporter.cpp
View File

@ -49,6 +49,18 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
namespace Assimp {
// Material specific token
static const std::string DiffuseTexture = "map_kd";
static const std::string AmbientTexture = "map_ka";
static const std::string SpecularTexture = "map_ks";
static const std::string OpacityTexture = "map_d";
static const std::string BumpTexture1 = "map_bump";
static const std::string BumpTexture2 = "map_Bump";
static const std::string BumpTexture3 = "bump";
static const std::string NormalTexture = "map_Kn";
static const std::string DisplacementTexture = "disp";
static const std::string SpecularityTexture = "map_ns";
// -------------------------------------------------------------------
// Constructor
ObjFileMtlImporter::ObjFileMtlImporter( std::vector<char> &buffer,
@ -249,46 +261,40 @@ void ObjFileMtlImporter::createMaterial()
// -------------------------------------------------------------------
// Gets a texture name from data.
void ObjFileMtlImporter::getTexture()
{
aiString *out = NULL;
void ObjFileMtlImporter::getTexture() {
aiString *out( NULL );
// FIXME: just a quick'n'dirty hack, consider cleanup later
// Diffuse texture
if (!ASSIMP_strincmp(&(*m_DataIt),"map_kd",6))
const char *pPtr( &(*m_DataIt) );
if ( !ASSIMP_strincmp( pPtr, DiffuseTexture.c_str(), DiffuseTexture.size() ) ) {
// Diffuse texture
out = & m_pModel->m_pCurrentMaterial->texture;
// Ambient texture
else if (!ASSIMP_strincmp(&(*m_DataIt),"map_ka",6))
} else if ( !ASSIMP_strincmp( pPtr,AmbientTexture.c_str(),AmbientTexture.size() ) ) {
// Ambient texture
out = & m_pModel->m_pCurrentMaterial->textureAmbient;
// Specular texture
else if (!ASSIMP_strincmp(&(*m_DataIt),"map_ks",6))
} else if (!ASSIMP_strincmp( pPtr, SpecularTexture.c_str(), SpecularTexture.size())) {
// Specular texture
out = & m_pModel->m_pCurrentMaterial->textureSpecular;
// Opacity texture
else if (!ASSIMP_strincmp(&(*m_DataIt),"map_d",5))
} else if ( !ASSIMP_strincmp( pPtr, OpacityTexture.c_str(), OpacityTexture.size() ) ) {
// Opacity texture
out = & m_pModel->m_pCurrentMaterial->textureOpacity;
// Ambient texture
else if (!ASSIMP_strincmp(&(*m_DataIt),"map_ka",6))
} else if (!ASSIMP_strincmp( pPtr,"map_ka",6)) {
// Ambient texture
out = & m_pModel->m_pCurrentMaterial->textureAmbient;
// Bump texture
else if (!ASSIMP_strincmp(&(*m_DataIt),"map_bump",8) || !ASSIMP_strincmp(&(*m_DataIt),"bump",4))
} else if ( !ASSIMP_strincmp( pPtr, BumpTexture1.c_str(), BumpTexture1.size() ) ||
!ASSIMP_strincmp( pPtr, BumpTexture2.c_str(), BumpTexture2.size() ) ||
!ASSIMP_strincmp( pPtr, BumpTexture3.c_str(), BumpTexture3.size() ) ) {
// Bump texture
out = & m_pModel->m_pCurrentMaterial->textureBump;
// Displacement texture
else if (!ASSIMP_strincmp(&(*m_DataIt),"disp",4))
} else if (!ASSIMP_strincmp( pPtr,NormalTexture.c_str(), NormalTexture.size())) {
// Normal map
out = & m_pModel->m_pCurrentMaterial->textureNormal;
} else if (!ASSIMP_strincmp( pPtr, DisplacementTexture.c_str(), DisplacementTexture.size() ) ) {
// Displacement texture
out = &m_pModel->m_pCurrentMaterial->textureDisp;
// Specularity scaling (glossiness)
else if (!ASSIMP_strincmp(&(*m_DataIt),"map_ns",6))
} else if (!ASSIMP_strincmp( pPtr, SpecularityTexture.c_str(),SpecularityTexture.size() ) ) {
// Specularity scaling (glossiness)
out = & m_pModel->m_pCurrentMaterial->textureSpecularity;
else
{
} else {
DefaultLogger::get()->error("OBJ/MTL: Encountered unknown texture type");
return;
}