//-------------------------------------------
void ofxAssimpModelLoader::getBoundingBoxForNode(const struct aiNode* nd, struct aiVector3D* min, struct aiVector3D* max, struct aiMatrix4x4* trafo)
{
struct aiMatrix4x4 prev;
unsigned int n = 0, t;
prev = *trafo;
aiMultiplyMatrix4(trafo,&nd->mTransformation);
for (; n < nd->mNumMeshes; ++n){
const struct aiMesh* mesh = scene->mMeshes[nd->mMeshes[n]];
for (t = 0; t < mesh->mNumVertices; ++t){
struct aiVector3D tmp = mesh->mVertices[t];
aiTransformVecByMatrix4(&tmp,trafo);
min->x = aisgl_min(min->x,tmp.x);
min->y = aisgl_min(min->y,tmp.y);
min->z = aisgl_min(min->z,tmp.z);
max->x = aisgl_max(max->x,tmp.x);
max->y = aisgl_max(max->y,tmp.y);
max->z = aisgl_max(max->z,tmp.z);
}
}
for (n = 0; n < nd->mNumChildren; ++n){
this->getBoundingBoxForNode(nd->mChildren[n], min, max, trafo);
}
*trafo = prev;
}
void get_bounding_box_for_node (const struct aiScene *sc,
const struct aiNode* nd,
struct aiVector3D* min,
struct aiVector3D* max,
struct aiMatrix4x4* trafo)
{
struct aiMatrix4x4 prev;
unsigned int n = 0, t;
prev = *trafo;
aiMultiplyMatrix4(trafo,&nd->mTransformation);
for (; n < nd->mNumMeshes; ++n) {
const struct aiMesh* mesh = sc->mMeshes[nd->mMeshes[n]];
for (t = 0; t < mesh->mNumVertices; ++t) {
struct aiVector3D tmp = mesh->mVertices[t];
aiTransformVecByMatrix4(&tmp,trafo);
min->x = aisgl_min(min->x,tmp.x);
min->y = aisgl_min(min->y,tmp.y);
min->z = aisgl_min(min->z,tmp.z);
max->x = aisgl_max(max->x,tmp.x);
max->y = aisgl_max(max->y,tmp.y);
max->z = aisgl_max(max->z,tmp.z);
}
}
for (n = 0; n < nd->mNumChildren; ++n) {
get_bounding_box_for_node(sc, nd->mChildren[n],min,max,trafo);
}
*trafo = prev;
}
void Model3D::get_bounding_box_for_node(const struct aiNode* nd, struct aiVector3D* min, struct aiVector3D* max, struct aiMatrix4x4* trafo) {
struct aiMatrix4x4 prev; // Use struct keyword to show you want struct version of this, not normal typedef?
unsigned int n = 0, t;
prev = *trafo;
aiMultiplyMatrix4(trafo, &nd->mTransformation);
for (; n < nd->mNumMeshes; ++n) {
const struct aiMesh* mesh = scene->mMeshes[nd->mMeshes[n]];
for (t = 0; t < mesh->mNumVertices; ++t) {
struct aiVector3D tmp = mesh->mVertices[t];
aiTransformVecByMatrix4(&tmp, trafo);
min->x = aisgl_min(min->x,tmp.x);
min->y = aisgl_min(min->y,tmp.y);
min->z = aisgl_min(min->z,tmp.z);
max->x = aisgl_max(max->x,tmp.x);
max->y = aisgl_max(max->y,tmp.y);
max->z = aisgl_max(max->z,tmp.z);
}
}
for (n = 0; n < nd->mNumChildren; ++n)
get_bounding_box_for_node(nd->mChildren[n], min, max, trafo);
*trafo = prev;
}
void get_bounding_box_for_node (const aiNode* nd,
aiVector3D* min,
aiVector3D* max)
{
aiMatrix4x4 prev;
unsigned int n = 0, t;
for (; n < nd->mNumMeshes; ++n) {
const aiMesh* mesh = scene->mMeshes[nd->mMeshes[n]];
for (t = 0; t < mesh->mNumVertices; ++t) {
aiVector3D tmp = mesh->mVertices[t];
min->x = aisgl_min(min->x,tmp.x);
min->y = aisgl_min(min->y,tmp.y);
min->z = aisgl_min(min->z,tmp.z);
max->x = aisgl_max(max->x,tmp.x);
max->y = aisgl_max(max->y,tmp.y);
max->z = aisgl_max(max->z,tmp.z);
}
}
for (n = 0; n < nd->mNumChildren; ++n) {
get_bounding_box_for_node(nd->mChildren[n],min,max);
}
}
//------------------------------------------
void ofxAssimpModelLoader::loadModel(string modelName){
// if we have a model loaded, unload the f****r.
if(scene != NULL)
{
aiReleaseImport(scene);
scene = NULL;
deleteGLResources();
}
// Load our new path.
string filepath = ofToDataPath(modelName);
ofLog(OF_LOG_VERBOSE, "loading model %s", filepath.c_str());
// only ever give us triangles.
aiSetImportPropertyInteger(AI_CONFIG_PP_SBP_REMOVE, aiPrimitiveType_LINE | aiPrimitiveType_POINT );
aiSetImportPropertyInteger(AI_CONFIG_PP_PTV_NORMALIZE, true);
// aiProcess_FlipUVs is for VAR code. Not needed otherwise. Not sure why.
scene = (aiScene*) aiImportFile(filepath.c_str(), aiProcessPreset_TargetRealtime_MaxQuality | aiProcess_OptimizeGraph | aiProcess_Triangulate | aiProcess_FlipUVs | 0 );
if(scene){
ofLog(OF_LOG_VERBOSE, "initted scene with %i meshes & %i animations", scene->mNumMeshes, scene->mNumAnimations);
getBoundingBoxWithMinVector(&scene_min, &scene_max);
scene_center.x = (scene_min.x + scene_max.x) / 2.0f;
scene_center.y = (scene_min.y + scene_max.y) / 2.0f;
scene_center.z = (scene_min.z + scene_max.z) / 2.0f;
// optional normalized scaling
normalizedScale = scene_max.x-scene_min.x;
normalizedScale = aisgl_max(scene_max.y - scene_min.y,normalizedScale);
normalizedScale = aisgl_max(scene_max.z - scene_min.z,normalizedScale);
normalizedScale = 1.f / normalizedScale;
normalizedScale *= ofGetWidth() / 2.0;
glPushAttrib(GL_ALL_ATTRIB_BITS);
glPushClientAttrib(GL_CLIENT_ALL_ATTRIB_BITS);
loadGLResources();
glPopClientAttrib();
glPopAttrib();
if(getAnimationCount())
ofLog(OF_LOG_VERBOSE, "scene has animations");
else {
ofLog(OF_LOG_VERBOSE, "no animations");
}
}
}
void
VSResModelLib::get_bounding_box_for_node (const struct aiNode* nd,
struct aiVector3D* min,
struct aiVector3D* max)
{
unsigned int n = 0;
mVSML->pushMatrix(VSMathLib::AUX0);
if (nd->mNumMeshes) {
// Get node transformation matrix
struct aiMatrix4x4 m = nd->mTransformation;
// OpenGL matrices are column major
m.Transpose();
// apply node transformation
float aux[16];
memcpy(aux,&m,sizeof(float) * 16);
mVSML->multMatrix(VSMathLib::AUX0, aux);
for (; n < nd->mNumMeshes; ++n) {
const struct aiMesh* mesh =
pScene->mMeshes[nd->mMeshes[n]];
for (unsigned int t = 0; t < mesh->mNumVertices; ++t) {
struct aiVector3D tmp = mesh->mVertices[t];
float a[4], res[4];
a[0] = tmp.x;
a[1] = tmp.y;
a[2] = tmp.z;
a[3] = 1.0f;
mVSML->multMatrixPoint(VSMathLib::AUX0, a, res);
min->x = aisgl_min(min->x,res[0]);
min->y = aisgl_min(min->y,res[1]);
min->z = aisgl_min(min->z,res[2]);
max->x = aisgl_max(max->x,res[0]);
max->y = aisgl_max(max->y,res[1]);
max->z = aisgl_max(max->z,res[2]);
}
}
}
for (n = 0; n < nd->mNumChildren; ++n) {
get_bounding_box_for_node(nd->mChildren[n],min,max);
}
mVSML->popMatrix(VSMathLib::AUX0);
}
/* ---------------------------------------------------------------------------- */
void display(void)
{
float tmp;
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
gluLookAt(0.f,0.f,3.f,0.f,0.f,-5.f,0.f,1.f,0.f);
/* rotate it around the y axis */
glRotatef(angle,0.f,1.f,0.f);
/* scale the whole asset to fit into our view frustum */
tmp = scene_max.x-scene_min.x;
tmp = aisgl_max(scene_max.y - scene_min.y,tmp);
tmp = aisgl_max(scene_max.z - scene_min.z,tmp);
tmp = 1.f / tmp;
glScalef(tmp, tmp, tmp);
/* center the model */
glTranslatef( -scene_center.x, -scene_center.y, -scene_center.z );
/* if the display list has not been made yet, create a new one and
fill it with scene contents */
if(scene_list == 0) {
scene_list = glGenLists(1);
glNewList(scene_list, GL_COMPILE);
/* now begin at the root node of the imported data and traverse
the scenegraph by multiplying subsequent local transforms
together on GL's matrix stack. */
recursive_render(scene, scene->mRootNode);
glEndList();
}
glCallList(scene_list);
glutSwapBuffers();
do_motion();
}
ModelAndTextureLoader::ModelAndTextureLoader(const char* TextureDirectory,const char* fullPathToModel)
{
m_nbTotalMesh = 0;
m_allMeshes = NULL;
//force to recompute normal tangent and bitangent
//Assimp::Importer::SetPropertyInteger(AI_CONFIG_PP_RVC_FLAGS, aiComponent_NORMALS);
//aiSetImportPropertyInteger(AI_CONFIG_PP_RVC_FLAGS, aiComponent_NORMALS);
//aiSetImportPropertyInteger(AI_CONFIG_PP_RVC_FLAGS, aiComponent_TANGENTS_AND_BITANGENTS);
m_assimpScene = aiImportFile(fullPathToModel, aiProcessPreset_TargetRealtime_MaxQuality|aiProcess_PreTransformVertices);
// | aiProcess_RemoveComponent | aiProcess_CalcTangentSpace | aiProcess_GenSmoothNormals //force to recompute normal tangent and bitangent
// );
if ( m_assimpScene )
{
struct aiVector3D scene_min, scene_max, scene_center;
get_bounding_box(&scene_min,&scene_max);
m_vCenter.x = (scene_min.x + scene_max.x) / 2.0f;
m_vCenter.y = (scene_min.y + scene_max.y) / 2.0f;
m_vCenter.z = (scene_min.z + scene_max.z) / 2.0f;
m_fSize = scene_max.x-scene_min.x;
m_fSize = aisgl_max(scene_max.y - scene_min.y,m_fSize);
m_fSize = aisgl_max(scene_max.z - scene_min.z,m_fSize);
RecursiveMesh_CountTotalMesh(m_assimpScene,m_assimpScene->mRootNode);
m_allMeshes = (MESH*)malloc(sizeof(MESH) * m_nbTotalMesh);
unsigned int iMesh = 0;
RecursiveMesh_Loading(m_assimpScene,m_assimpScene->mRootNode,&iMesh);
//load textures
m_textureOfEachMaterial = new MATERIAL_TEXTUREID[m_assimpScene->mNumMaterials];
for (unsigned int m=0; m<m_assimpScene->mNumMaterials; m++)
{
int texIndex;
texIndex = 0;
while (true)
{
aiString path;
aiReturn texFound = m_assimpScene->mMaterials[m]->GetTexture(aiTextureType_DIFFUSE, texIndex, &path);
if ( texFound == AI_SUCCESS ) { m_textureIdMap[path.data] = NULL; texIndex++; }
else{break;}
}
texIndex = 0;
texIndex = 0;
while (true)
{
aiString path;
aiReturn texFound = m_assimpScene->mMaterials[m]->GetTexture(aiTextureType_SPECULAR, texIndex, &path);
if ( texFound == AI_SUCCESS ) { m_textureIdMap[path.data] = NULL; texIndex++; }
else{break;}
}
texIndex = 0;
while (true)
{
aiString path;
aiReturn texFound = m_assimpScene->mMaterials[m]->GetTexture(aiTextureType_AMBIENT, texIndex, &path);
if ( texFound == AI_SUCCESS ) { m_textureIdMap[path.data] = NULL; texIndex++; }
else{break;}
}
texIndex = 0;
while (true)
{
aiString path;
aiReturn texFound = m_assimpScene->mMaterials[m]->GetTexture(aiTextureType_EMISSIVE, texIndex, &path);
if ( texFound == AI_SUCCESS ) { m_textureIdMap[path.data] = NULL; texIndex++; }
else{break;}
}
texIndex = 0;
while (true)
{
aiString path;
aiReturn texFound = m_assimpScene->mMaterials[m]->GetTexture(aiTextureType_NORMALS, texIndex, &path);
if ( texFound == AI_SUCCESS ) { m_textureIdMap[path.data] = NULL; texIndex++; }
else{break;}
}
texIndex = 0;
while (true)
{
aiString path;
aiReturn texFound = m_assimpScene->mMaterials[m]->GetTexture(aiTextureType_HEIGHT, texIndex, &path);
if ( texFound == AI_SUCCESS ) { m_textureIdMap[path.data] = NULL; texIndex++; }
else{break;}
}
}
int numTextures = int(m_textureIdMap.size());
std::map<std::string, GLuint*>::iterator itr = m_textureIdMap.begin();
m_textureIds = new GLuint[numTextures];
glGenTextures(numTextures, m_textureIds);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
for (int i=0; i<numTextures; i++)
{
std::string filename = (*itr).first;
(*itr).second = &m_textureIds[i];
gli::texture2D textureFileLoaded = gli::load(std::string(TextureDirectory) + filename);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, m_textureIds[i]);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
gli::texture2D::format_type formatImage = textureFileLoaded.format();
if ( formatImage == gli::RGB8U )
{
glTexImage2D(GL_TEXTURE_2D,0,GL_RGB,textureFileLoaded[0].dimensions().x,textureFileLoaded[0].dimensions().y,0,GL_RGB,GL_UNSIGNED_BYTE,textureFileLoaded[0].data());
}
else if ( formatImage == gli::RGBA8U )
{
glTexImage2D(GL_TEXTURE_2D,0,GL_RGBA,textureFileLoaded[0].dimensions().x,textureFileLoaded[0].dimensions().y,0,GL_RGBA,GL_UNSIGNED_BYTE,textureFileLoaded[0].data());
}
glBindTexture(GL_TEXTURE_2D, 0);
itr++;
}
glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
for (unsigned int m=0; m<m_assimpScene->mNumMaterials; m++)
{
aiString path;
aiReturn texFound = m_assimpScene->mMaterials[m]->GetTexture(aiTextureType_DIFFUSE, 0, &path);
if ( texFound == AI_SUCCESS )
{
m_textureOfEachMaterial[m].idDiffuse = *m_textureIdMap[path.data] ;
}
else{ m_textureOfEachMaterial[m].idDiffuse = 0;}
texFound = m_assimpScene->mMaterials[m]->GetTexture(aiTextureType_SPECULAR, 0, &path);
if ( texFound == AI_SUCCESS )
{
m_textureOfEachMaterial[m].idSpecular = *m_textureIdMap[path.data] ;
}
else{ m_textureOfEachMaterial[m].idSpecular = 0;}
texFound = m_assimpScene->mMaterials[m]->GetTexture(aiTextureType_AMBIENT, 0, &path);
if ( texFound == AI_SUCCESS )
{
m_textureOfEachMaterial[m].idAmbiant = *m_textureIdMap[path.data] ;
}
else{ m_textureOfEachMaterial[m].idAmbiant = 0;}
texFound = m_assimpScene->mMaterials[m]->GetTexture(aiTextureType_EMISSIVE, 0, &path);
if ( texFound == AI_SUCCESS )
{
m_textureOfEachMaterial[m].idEmissive = *m_textureIdMap[path.data] ;
}
else{ m_textureOfEachMaterial[m].idEmissive = 0;}
texFound = m_assimpScene->mMaterials[m]->GetTexture(aiTextureType_NORMALS, 0, &path);
if ( texFound == AI_SUCCESS )
{
m_textureOfEachMaterial[m].idNormal = *m_textureIdMap[path.data] ;
}
else
{
//height could be considered as normals
texFound = m_assimpScene->mMaterials[m]->GetTexture(aiTextureType_HEIGHT, 0, &path);
if ( texFound == AI_SUCCESS )
{
m_textureOfEachMaterial[m].idNormal = *m_textureIdMap[path.data] ;
}
else
{
m_textureOfEachMaterial[m].idNormal = 0;
}
}
}
}
}
/* ---------------------------------------------------------------------------- */
void display(void)
{
float Ambient[] = {0,0,0,1};
float Diffuse[] = {1,1,1,1};
float Specular[] = {1.0,1.0,1.0,1};
float white[] = {1,1,1,1};
float tmp;
glPushMatrix();
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
gluLookAt(0.f,0.f,3.f,0.f,0.f,-5.f,0.f,1.f,0.f);
/* rotate it around the y axis */
//glRotatef(angle,0.f,1.f,0.f);
glRotatef(180,0.f,1.f,0.f);
glEnable(GL_LIGHTING);
/* scale the whole asset to fit into our view frustum */
tmp = scene_max.x-scene_min.x;
tmp = aisgl_max(scene_max.y - scene_min.y,tmp);
tmp = aisgl_max(scene_max.z - scene_min.z,tmp);
double len = tmp;
tmp = 1.f / tmp;
float Position[] = {len*3.5,len/2,0,1};
glScalef(tmp, tmp, tmp);
/* center the model */
glTranslatef( -scene_center.x, -scene_center.y, -scene_center.z );
/* if the display list has not been made yet, create a new one and
fill it with scene contents */
// Place this in the mode switching function
if(scene_list == 0) {
scene_list = glGenLists(1);
glNewList(scene_list, GL_COMPILE);
/* now begin at the root node of the imported data and traverse
the scenegraph by multiplying subsequent local transforms
together on GL's matrix stack. */
recursive_render(scene, scene->mRootNode);
glEndList();
}
// move ship to mouse cursor
glTranslatef(mouseWorldCoord[0],mouseWorldCoord[1],0);
// add some slight sway to make ship seem more 'alive'
glTranslatef(infinitySymbol[0],infinitySymbol[1],0);
glCallList(scene_list);
glPopMatrix();
ball(Position[0],Position[1],Position[2],10);
glPushMatrix();
glRotatef(angle,0.0,1.0,0.0);
Sky(len*3.5);
glPopMatrix();
glLightfv(GL_LIGHT0,GL_AMBIENT ,Ambient);
glLightfv(GL_LIGHT0,GL_DIFFUSE ,Diffuse);
glLightfv(GL_LIGHT0,GL_SPECULAR,Specular);
glLightfv(GL_LIGHT0,GL_POSITION,Position);
glMaterialf(GL_FRONT_AND_BACK,GL_SHININESS,32.0f);
glMaterialfv(GL_FRONT_AND_BACK,GL_SPECULAR,white);
// Draw axes - no lighting from here on
if(axes){
glDisable(GL_LIGHTING);
glColor3f(1, 1, 1);
glBegin(GL_LINES);
glVertex3d(0.0, 0.0, 0.0);
glVertex3d(len, 0.0, 0.0);
glVertex3d(0.0, 0.0, 0.0);
glVertex3d(0.0, len, 0.0);
glVertex3d(0.0, 0.0, 0.0);
glVertex3d(0.0, 0.0, len);
glEnd();
}
glutSwapBuffers();
do_motion();
}