//----------------------------------------------------------
void ofGLRenderer::draw(ofMesh & vertexData, ofPolyRenderMode renderType, bool useColors, bool useTextures, bool useNormals){
if (bSmoothHinted) startSmoothing();
#ifndef TARGET_OPENGLES
glPushAttrib(GL_POLYGON_BIT);
glPolygonMode(GL_FRONT_AND_BACK, ofGetGLPolyMode(renderType));
draw(vertexData,useColors,useTextures,useNormals);
glPopAttrib(); //TODO: GLES doesnt support polygon mode, add renderType to gl renderer?
#else
if(vertexData.getNumVertices()){
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(3, GL_FLOAT, sizeof(ofVec3f), vertexData.getVerticesPointer());
}
if(vertexData.getNumNormals() && useNormals){
glEnableClientState(GL_NORMAL_ARRAY);
glNormalPointer(GL_FLOAT, 0, vertexData.getNormalsPointer());
}
if(vertexData.getNumColors() && useColors){
glEnableClientState(GL_COLOR_ARRAY);
glColorPointer(4,GL_FLOAT, sizeof(ofFloatColor), vertexData.getColorsPointer());
}
if(vertexData.getNumTexCoords() && useTextures){
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glTexCoordPointer(2, GL_FLOAT, 0, vertexData.getTexCoordsPointer());
}
GLenum drawMode;
switch(renderType){
case OF_MESH_POINTS:
drawMode = GL_POINTS;
break;
case OF_MESH_WIREFRAME:
drawMode = GL_LINES;
break;
case OF_MESH_FILL:
drawMode = ofGetGLPrimitiveMode(vertexData.getMode());
break;
default:
drawMode = ofGetGLPrimitiveMode(vertexData.getMode());
break;
}
if(vertexData.getNumIndices()){
glDrawElements(drawMode, vertexData.getNumIndices(),GL_UNSIGNED_SHORT,vertexData.getIndexPointer());
}else{
glDrawArrays(drawMode, 0, vertexData.getNumVertices());
}
if(vertexData.getNumColors() && useColors){
glDisableClientState(GL_COLOR_ARRAY);
}
if(vertexData.getNumNormals() && useNormals){
glDisableClientState(GL_NORMAL_ARRAY);
}
if(vertexData.getNumTexCoords() && useTextures){
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
}
#endif
if (bSmoothHinted) endSmoothing();
}
void MeshHelper::fuseNeighbours( ofMesh& mesh, float fuseDistance )
{
//@todo tex coords, normals
assert( mesh.getMode() == OF_PRIMITIVE_TRIANGLES );
int oldNumVerts = mesh.getNumVertices();
int oldNumIndices = mesh.getNumIndices();
if ( fuseDistance < 0 )
{
// fuse close-enough vertices
// first define 'close enough' as 1/10000 of smallest dimension of the bounding box width/height/depth
ofVec3f tlb, brf; // top left back, bottom right front
calculateAABoundingBox( mesh, tlb, brf );
float minDimension = min(brf.x-tlb.x,min(brf.y-tlb.y, brf.z-tlb.z));
fuseDistance = minDimension * 0.00001f;
}
// now fuse
map<ofIndexType,ofIndexType> fused;
vector<ofVec3f> newVertices;
vector<ofIndexType> remove;
for ( ofIndexType i=0; i<mesh.getNumVertices(); i++ )
{
const ofVec3f& vertex = mesh.getVertex(i);
// look at all the earlier vertices
bool didFuse = false;
for ( ofIndexType j=0; j<newVertices.size(); j++ ) {
if ( (vertex-newVertices[j]).length()<fuseDistance ) {
// fuse i to j
fused[i] = j;
remove.push_back(i);
didFuse = true;
break;
}
}
if ( !didFuse ) {
newVertices.push_back( vertex );
fused[i] = newVertices.size()-1;
}
}
// update indices
for ( int i=0; i<mesh.getNumIndices(); i++ ) {
ofIndexType originalIndex = mesh.getIndex(i);
assert( fused.find( originalIndex ) != fused.end() );
if ( fused.find(originalIndex) != fused.end() ) {
mesh.getIndices()[i] = fused[originalIndex];
}
}
// remove the fused
for ( int i=remove.size()-1; i>=0; i-- ) {
mesh.removeVertex( remove[i] );
}
ofLogNotice("MeshHelper") << "fuseNeighbours inplace: input " << oldNumVerts << " vertices/" << oldNumIndices << " indices, output " << mesh.getNumVertices() << " vertices/" << mesh.getNumIndices() << " indices";
}
void ofxObjLoader::save(string path, ofMesh& mesh){
path = ofToDataPath(path);
GLuint writeMode = GLM_NONE;
GLMmodel* m = new GLMmodel();
if(mesh.getNumVertices() > 0){
m->numvertices = mesh.getNumVertices();
m->vertices = new GLfloat[m->numvertices*3+1];
memcpy(&m->vertices[3], &mesh.getVertices()[0].x, sizeof(ofVec3f) * mesh.getNumVertices());
}
else {
ofLogError("ofxObjLoader::save -- No vertices to save!");
return;
}
if(mesh.getNumNormals() > 0){
m->numnormals = mesh.getNumNormals();
m->normals = new GLfloat[m->numnormals*3+1];
memcpy(&m->normals[3], &mesh.getNormals()[0].x, sizeof(ofVec3f)*mesh.getNumNormals());
writeMode |= GLM_SMOOTH;
}
if(mesh.getNumTexCoords() > 0){
m->numtexcoords = mesh.getNumTexCoords();
m->texcoords = new GLfloat[m->numtexcoords*2+1];
memcpy(&m->texcoords[2], &mesh.getTexCoords()[0].x, sizeof(ofVec2f)*mesh.getNumTexCoords());
writeMode |= GLM_TEXTURE;
}
if(mesh.getNumIndices() > 0){
//create triangles
m->numtriangles = mesh.getNumIndices()/3;
m->triangles = new GLMtriangle[m->numtriangles];
//add them all to one group
m->groups = new GLMgroup();
m->groups->next = NULL;
m->groups->material = NULL;
string name = "ofMesh";
m->groups->name = (char*)malloc(sizeof(char) * name.length()+1);
strcpy(m->groups->name, name.c_str());
m->groups->numtriangles = mesh.getNumIndices()/3;
m->groups->triangles = new GLuint[m->groups->numtriangles];
m->numgroups = 1;
for(int i = 0; i < mesh.getNumIndices()/3; i++){
memcpy(m->triangles[i].vindices, &mesh.getIndices()[i*3], sizeof(GLuint)*3);
memcpy(m->triangles[i].nindices, &mesh.getIndices()[i*3], sizeof(GLuint)*3);
memcpy(m->triangles[i].tindices, &mesh.getIndices()[i*3], sizeof(GLuint)*3);
m->groups->triangles[i] = i;
}
}
glmWriteOBJ(m, (char*)path.c_str(), writeMode);
glmDelete(m);
}
int getClosestTripletOnMesh(const ofMesh& objectMesh,const ofMesh& imageMesh, float x, float y, float* distance) {
float bestDistance = numeric_limits<float>::infinity();
int bestChoice = 0;
for(int i = 0; i < objectMesh.getNumIndices()/3; i++) {
ofVec3f cur = ofVec3f(0,0,0);
for (int j=0;j<3;j++) {
cur+=imageMesh.getVerticesPointer()[objectMesh.getIndexPointer()[3*i+j]];
}
cur/=3.0;
float dx = x - cur.x;
float dy = y - cur.y;
float dz = 0 - cur.z;
float curDistance = dx * dx + dy * dy + dz * dz;
if(curDistance < bestDistance) {
bestDistance = curDistance;
bestChoice = i;
}
}
return bestChoice;
}
void PyramidBrush::setNormals(ofMesh& mesh) {
int nV = mesh.getNumVertices();
int nT = mesh.getNumIndices() / 3;
vector<ofPoint> norm(nV);
for(int t=0; t < nT; t++) {
int i1 = mesh.getIndex(3*t);
int i2 = mesh.getIndex(3*t + 1);
int i3 = mesh.getIndex(3*t + 2);
const ofPoint &v1 = mesh.getVertex(i1);
const ofPoint &v2 = mesh.getVertex(i2);
const ofPoint &v3 = mesh.getVertex(i3);
ofPoint dir = ( (v2 - v1).crossed(v3 - v1)).normalized();
norm[i1] += dir;
norm[i2] += dir;
norm[i3] += dir;
}
for(int i = 0; i < nV; i++) {
norm[i].normalize();
}
mesh.clearNormals();
mesh.addNormals(norm);
}
//--------------------------------------------------------------
void ofVbo::setMesh(const ofMesh & mesh, int usage, bool useColors, bool useTextures, bool useNormals){
if(mesh.getVertices().empty()){
ofLogWarning("ofVbo") << "setMesh(): ignoring mesh with no vertices";
return;
}
setVertexData(mesh.getVerticesPointer(),mesh.getNumVertices(),usage);
if(mesh.hasColors() && useColors){
setColorData(mesh.getColorsPointer(),mesh.getNumColors(),usage);
enableColors();
}else{
disableColors();
}
if(mesh.hasNormals() && useNormals){
setNormalData(mesh.getNormalsPointer(),mesh.getNumNormals(),usage);
enableNormals();
}else{
disableNormals();
}
if(mesh.hasTexCoords() && useTextures){
setTexCoordData(mesh.getTexCoordsPointer(),mesh.getNumTexCoords(),usage);
enableTexCoords();
}else{
disableTexCoords();
}
if(mesh.hasIndices()){
setIndexData(mesh.getIndexPointer(), mesh.getNumIndices(), usage);
enableIndices();
}else{
disableIndices();
}
}
//--------------------------------------------------------------
void ofVboByteColor::setMesh(const ofMesh & mesh, int usage){
setVertexData(mesh.getVerticesPointer(),mesh.getNumVertices(),usage);
setColorData(mesh.getColorsPointer(),mesh.getNumColors(),usage);
setNormalData(mesh.getNormalsPointer(),mesh.getNumNormals(),usage);
setTexCoordData(mesh.getTexCoordsPointer(),mesh.getNumTexCoords(),usage);
setIndexData(mesh.getIndexPointer(), mesh.getNumIndices(), usage);
}
//--------------------------------------------------------------
void ofxBulletTriMeshShape::updateMesh( btDiscreteDynamicsWorld* a_world, ofMesh& aMesh ) {
if( aMesh.getNumVertices() != totalVerts || aMesh.getNumIndices() != totalIndices ) {
ofLogWarning() << "updateMesh :: the verts or the indices are not the correct size, not updating";
return;
}
auto& tverts = aMesh.getVertices();
btVector3 aabbMin(BT_LARGE_FLOAT,BT_LARGE_FLOAT,BT_LARGE_FLOAT);
btVector3 aabbMax(-BT_LARGE_FLOAT,-BT_LARGE_FLOAT,-BT_LARGE_FLOAT);
for( int i = 0; i < totalVerts; i++ ) {
auto& v = tverts[i];
bullet_vertices[i].setValue( v.x, v.y, v.z );
aabbMin.setMin( bullet_vertices[i] );
aabbMax.setMax( bullet_vertices[i] );
}
btBvhTriangleMeshShape* triShape = (btBvhTriangleMeshShape*)_shape;
// triShape->partialRefitTree( aabbMin, aabbMax );
triShape->refitTree( aabbMin, aabbMax );
//clear all contact points involving mesh proxy. Note: this is a slow/unoptimized operation.
a_world->getBroadphase()->getOverlappingPairCache()->cleanProxyFromPairs( getRigidBody()->getBroadphaseHandle(), a_world->getDispatcher());
}
ofMesh convertFromIndices(const ofMesh& mesh) {
ofMesh result;
// have to do a const_cast because ofMesh::get*() is not const correct
ofMesh& cmesh = const_cast<ofMesh&>(mesh);
int vertices = mesh.getNumVertices();
int colors = mesh.getNumColors();
int normals = mesh.getNumNormals();
int texcoords = mesh.getNumTexCoords();
int indices = mesh.getNumIndices();
for(int i = 0; i < indices; i++) {
int cur = cmesh.getIndex(i);
if(vertices > 0) {
result.addVertex(cmesh.getVertex(cur));
}
if(colors > 0) {
result.addColor(cmesh.getColor(cur));
}
if(normals > 0) {
result.addNormal(cmesh.getNormal(cur));
}
if(texcoords > 0) {
result.addTexCoord(cmesh.getTexCoord(cur));
}
}
return result;
}
//Universal function which sets normals for the triangle mesh
void ofxOcean::setNormals( ofMesh &mesh ){
//The number of the vertices
int nV = mesh.getNumVertices();
//The number of the triangles
int nT = mesh.getNumIndices() / 3;
vector<ofPoint> norm( nV ); //Array for the normals
//Scan all the triangles. For each triangle add its
//normal to norm's vectors of triangle's vertices
for (int t=0; t<nT; t++) {
//Get indices of the triangle t
int i1 = mesh.getIndex( 3 * t );
int i2 = mesh.getIndex( 3 * t + 1 );
int i3 = mesh.getIndex( 3 * t + 2 );
//Get vertices of the triangle
const ofPoint &v1 = mesh.getVertex( i1 );
const ofPoint &v2 = mesh.getVertex( i2 );
const ofPoint &v3 = mesh.getVertex( i3 );
//Compute the triangle's normal
ofPoint dir = ( (v2 - v1).getCrossed( v3 - v1 ) ).getNormalized();
//Accumulate it to norm array for i1, i2, i3
norm[ i1 ] += dir;
norm[ i2 ] += dir;
norm[ i3 ] += dir;
}
//Normalize the normal's length
for (int i=0; i<nV; i++) {
norm[i].normalize();
}
//Set the normals to mesh
mesh.clearNormals();
mesh.addNormals( norm );
}
//--------------------------------------------------------------
//Universal function which sets normals for the triangle mesh
void setNormals( ofMesh &mesh ){
int nV = mesh.getNumVertices();//640
int nT = mesh.getNumIndices() / 3;//213
vector<ofPoint> norm( nV );
for (int t=0; t<nT; t++) {
int i1 = mesh.getIndex( 3 * t );
int i2 = mesh.getIndex( 3 * t + 1 );
int i3 = mesh.getIndex( 641 );
const ofPoint &v1 = mesh.getVertex( i1 );
const ofPoint &v2 = mesh.getVertex( i2 );
const ofPoint &v3 = mesh.getVertex( i3 );
//Compute the triangle's normal
ofPoint dir = ( (v2 - v1).crossed( v3 - v1 ) ).normalized();
norm[ i1 ] += dir;
norm[ i2 ] += dir;
norm[ i3 ] += dir;
}
//Normalize the normal's length
for (int i=0; i<nV; i++) {
norm[i].normalize();
}
//Set the normals to mesh
mesh.clearNormals();
mesh.addNormals( norm );
}
void buildNormals(ofMesh& mesh) {
if(mesh.getNumIndices() > 0) {
buildNormalsAverage(mesh);
} else {
buildNormalsFaces(mesh);
}
}
//----------------------------------------------------------
void ofGLRenderer::draw(const ofMesh & vertexData, bool useColors, bool useTextures, bool useNormals) const{
if(vertexData.getNumVertices()){
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(3, GL_FLOAT, sizeof(ofVec3f), &vertexData.getVerticesPointer()->x);
}
if(vertexData.getNumNormals() && useNormals){
glEnableClientState(GL_NORMAL_ARRAY);
glNormalPointer(GL_FLOAT, sizeof(ofVec3f), &vertexData.getNormalsPointer()->x);
}
if(vertexData.getNumColors() && useColors){
glEnableClientState(GL_COLOR_ARRAY);
glColorPointer(4,GL_FLOAT, sizeof(ofFloatColor), &vertexData.getColorsPointer()->r);
}
if(vertexData.getNumTexCoords() && useTextures){
set<int>::iterator textureLocation = textureLocationsEnabled.begin();
for(;textureLocation!=textureLocationsEnabled.end();textureLocation++){
glActiveTexture(GL_TEXTURE0+*textureLocation);
glClientActiveTexture(GL_TEXTURE0+*textureLocation);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glTexCoordPointer(2, GL_FLOAT, sizeof(ofVec2f), &vertexData.getTexCoordsPointer()->x);
}
glActiveTexture(GL_TEXTURE0);
glClientActiveTexture(GL_TEXTURE0);
}
if(vertexData.getNumIndices()){
#ifdef TARGET_OPENGLES
glDrawElements(ofGetGLPrimitiveMode(vertexData.getMode()), vertexData.getNumIndices(),GL_UNSIGNED_SHORT,vertexData.getIndexPointer());
#else
glDrawElements(ofGetGLPrimitiveMode(vertexData.getMode()), vertexData.getNumIndices(),GL_UNSIGNED_INT,vertexData.getIndexPointer());
#endif
}else{
glDrawArrays(ofGetGLPrimitiveMode(vertexData.getMode()), 0, vertexData.getNumVertices());
}
if(vertexData.getNumColors() && useColors){
glDisableClientState(GL_COLOR_ARRAY);
}
if(vertexData.getNumNormals() && useNormals){
glDisableClientState(GL_NORMAL_ARRAY);
}
if(vertexData.getNumTexCoords() && useTextures){
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
}
}
void MeshHelper::fuseNeighbours( ofMesh& outputMesh, const ofMesh& sourceMesh, float fuseDistance )
{
//@todo tex coords, normals
assert( sourceMesh.getMode() == OF_PRIMITIVE_TRIANGLES );
if ( fuseDistance < 0 )
{
// fuse close-enough vertices
// first define 'close enough' as 1/10000 of smallest dimension of the bounding box width/height/depth
ofVec3f tlb, brf; // top left back, bottom right front
calculateAABoundingBox( sourceMesh, tlb, brf );
float minDimension = min(brf.x-tlb.x,min(brf.y-tlb.y, brf.z-tlb.z));
fuseDistance = minDimension * 0.00001f;
}
// now fuse
map<int,int> fused;
vector<ofVec3f> vertices;
for ( int i=0; i<sourceMesh.getNumVertices(); i++ )
{
const ofVec3f& vertex = sourceMesh.getVertex(i);
//vertex.rotate(10, 10, 10);
bool didFuse = false;
for ( int j=0; j<vertices.size(); j++ ) {
if ( (vertex-vertices[j]).length()<fuseDistance ) {
// fuse i to j
fused[i] = j;
didFuse = true;
break;
}
}
if ( !didFuse ) {
vertices.push_back( vertex );
fused[i] = vertices.size()-1;
}
}
// build the output mesh
outputMesh.clear();
outputMesh.addVertices(vertices);
if ( sourceMesh.getNumIndices() > 0 ) {
// walk through indices to build up the new mesh
const vector<ofIndexType>& indices = sourceMesh.getIndices();
for ( int i=0; i<indices.size(); i+=3 ) {
assert( fused.find( indices[i] ) != fused.end() );
assert( fused.find( indices[i+1] ) != fused.end() );
assert( fused.find( indices[i+2] ) != fused.end() );
outputMesh.addTriangle( fused[indices[i]], fused[indices[i+1]], fused[indices[i+2]] );
}
} else {
// triangles are just triples of vertices
for ( int i=0; i<sourceMesh.getNumVertices(); i+=3 ) {
outputMesh.addTriangle( fused[i], fused[i+1], fused[i+2] );
}
}
ofLogNotice("MeshHelper") << "fuseNeighbours: input " << sourceMesh.getNumVertices() << " vertices/" << sourceMesh.getNumIndices() << " indices, output " << outputMesh.getNumVertices() << " vertices/" << outputMesh.getNumIndices() << " indices";
}
//--------------------------------------------------------------
void ofxBulletSoftTriMesh::create( ofxBulletWorldSoft* a_world, ofMesh& aMesh, btTransform &a_bt_tr, float a_mass ) {
if(a_world == NULL) {
ofLogError("ofxBulletSoftTriMesh") << "create(): a_world param is NULL";
return;
}
if( aMesh.getMode() != OF_PRIMITIVE_TRIANGLES ) {
ofLogError("ofxBulletSoftTriMesh") << " only excepts meshes that are triangles";
return;
}
_world = a_world;
_cachedMesh.clear();
_cachedMesh = aMesh;
if( bullet_vertices != NULL ) {
delete bullet_vertices;
bullet_vertices = NULL;
}
int vertStride = sizeof(btVector3);
int indexStride = 3*sizeof(int);
int totalVerts = (int)aMesh.getNumVertices();
int totalIndices = (int)aMesh.getNumIndices();
bullet_vertices = new btScalar[ totalVerts * 3 ];
int* bullet_indices = new int[ totalIndices ];
auto& tverts = aMesh.getVertices();
vector< ofIndexType >& tindices = aMesh.getIndices();
for( int i = 0; i < totalVerts; i++ ) {
bullet_vertices[i*3+0] = tverts[i].x;
bullet_vertices[i*3+1] = tverts[i].y;
bullet_vertices[i*3+2] = tverts[i].z;
}
for( int i = 0; i < totalIndices; i++ ) {
bullet_indices[i] = tindices[i];
}
_softBody = btSoftBodyHelpers::CreateFromTriMesh( _world->getInfo(),
bullet_vertices,
bullet_indices,
totalIndices/3 );
_softBody->transform( a_bt_tr );
setMass( a_mass, true );
setCreated(_softBody);
createInternalUserData();
delete [] bullet_indices;
}
//----------------------------------------------------------
void ofGLRenderer::draw(ofMesh & vertexData){
if(vertexData.getNumVertices()){
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(3, GL_FLOAT, sizeof(ofVec3f), vertexData.getVerticesPointer());
}
if(vertexData.getNumNormals()){
glEnableClientState(GL_NORMAL_ARRAY);
glNormalPointer(GL_FLOAT, 0, vertexData.getNormalsPointer());
}
if(vertexData.getNumColors()){
glEnableClientState(GL_COLOR_ARRAY);
glColorPointer(4,GL_FLOAT, sizeof(ofColor), vertexData.getColorsPointer());
}
if(vertexData.getNumTexCoords()){
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glTexCoordPointer(2, GL_FLOAT, 0, vertexData.getTexCoordsPointer());
}
if(vertexData.getNumIndices()){
#ifdef TARGET_OPENGLES
glDrawElements(ofGetGLPrimitiveMode(vertexData.getMode()), vertexData.getNumIndices(),GL_UNSIGNED_SHORT,vertexData.getIndexPointer());
#else
glDrawElements(ofGetGLPrimitiveMode(vertexData.getMode()), vertexData.getNumIndices(),GL_UNSIGNED_INT,vertexData.getIndexPointer());
#endif
}else{
glDrawArrays(ofGetGLPrimitiveMode(vertexData.getMode()), 0, vertexData.getNumVertices());
}
if(vertexData.getNumColors()){
glDisableClientState(GL_COLOR_ARRAY);
}
if(vertexData.getNumNormals()){
glDisableClientState(GL_NORMAL_ARRAY);
}
if(vertexData.getNumTexCoords()){
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
}
}
// Returns true iff the mesh contains two index defined traingles that intersect.
bool check_triangle_intersections(ofMesh &mesh)
{
int len = mesh.getNumIndices();
for(int i = 0; i < len; i += 3)
{
ofVec3f v1 = mesh.getVertex(mesh.getIndex(i));
ofVec3f v2 = mesh.getVertex(mesh.getIndex(i + 1));
ofVec3f v3 = mesh.getVertex(mesh.getIndex(i + 2));
for(int j = 0; j < len; j += 3)
{
ofVec3f p1 = mesh.getVertex(mesh.getIndex(j));
ofVec3f p2 = mesh.getVertex(mesh.getIndex(j + 1));
ofVec3f p3 = mesh.getVertex(mesh.getIndex(j + 2));
int b = Intersecting(p1, p2, v1, v2, v3);
int b2 = Intersecting(p2, p3, v1, v2, v3);
int b3 = Intersecting(p3, p1, v1, v2, v3);
if(b == 1 || b2 == 1 || b3 == 1)
{
return true;
}
if(point_triangle_intersection(v1, v2, v3, p1)||
point_triangle_intersection(v1, v2, v3, p2)||
point_triangle_intersection(v1, v2, v3, p3))
{
return true;
}
}
}
return false;
}
Handle <Device::RTShape> Renderer::addMesh(Device::RTMaterial material, const ofMesh & meshPr, const ofMatrix4x4& transform) {
int vertsNum = meshPr.getNumVertices();
int vertsSize = vertsNum * sizeof(ofVec3f);
Device::RTData positions = g_device->rtNewData("immutable_managed", vertsSize, meshPr.getVerticesPointer());
int normalsNum = meshPr.getNumNormals();
int normalsSize = normalsNum * sizeof(ofVec3f);
Device::RTData normals = g_device->rtNewData("immutable_managed", normalsSize, meshPr.getNormalsPointer());
int textcoordsNum = meshPr.getNumTexCoords();
int textcoordsSize = textcoordsNum * sizeof(ofVec2f);
Device::RTData texcoords = g_device->rtNewData("immutable_managed", textcoordsSize, meshPr.getTexCoordsPointer());
int indicesNum = meshPr.getNumIndices();
int indicesSize = indicesNum * sizeof(ofIndexType);
Device::RTData triangles = g_device->rtNewData("immutable_managed", indicesSize, meshPr.getIndexPointer());
Handle <Device::RTShape> mesh = device->rtNewShape("trianglemesh");
if(vertsNum) {
g_device->rtSetArray(mesh, "positions", "float3", positions, vertsNum, sizeof(ofVec3f), 0);
}
if(normalsNum) {
g_device->rtSetArray(mesh, "normals", "float3", normals, normalsNum, sizeof(ofVec3f), 0);
}
if(textcoordsNum) {
g_device->rtSetArray(mesh, "texcoords", "float2", texcoords, textcoordsNum, sizeof(ofVec2f), 0);
}
if(indicesNum) {
g_device->rtSetArray(mesh, "indices", "int3", triangles, indicesNum / 3, 3 * sizeof(ofIndexType), 0);
}
device->rtCommit(mesh);
device->rtClear(mesh);
return addShape(material, mesh, transform);
}
void ofSaveMesh(const ofMesh& mesh, string filename) {
ofFile ply;
if (ply.open(filename, ofFile::WriteOnly, true)) {
int vertexCount = mesh.getNumVertices();
int triangleCount = mesh.getNumVertices() / 3;
cout << "saving mesh with " << mesh.getNumIndices() << " indices" << endl;
cout << "saving mesh with " << mesh.getNumVertices() << " vertices" << endl;
// write the header
ply << "ply" << endl;
ply << "format binary_little_endian 1.0" << endl;
ply << "element vertex " << vertexCount << endl;
ply << "property float x" << endl;
ply << "property float y" << endl;
ply << "property float z" << endl;
ply << "element face " << triangleCount << endl;
ply << "property list uchar int vertex_index" << endl;
ply << "end_header" << endl;
// write all the vertices
const vector<ofVec3f>& surface = mesh.getVertices();
for(int i = 0; i < surface.size(); i++) {
// write the raw data as if it were a stream of bytes
ply.write((char*) &surface[i], sizeof(ofVec3f));
}
// write all the faces
unsigned char faceSize = 3;
for(int i = 0; i < vertexCount; i += faceSize) {
// write the raw data as if it were a stream of bytes
ply.write((char*) &faceSize, sizeof(unsigned char));
for(int j = 0; j < faceSize; j++) {
int curIndex = i + j;
ply.write((char*) &curIndex, sizeof(int));
}
}
}
}
//--------------------------------------------------------------
void save(const string& path, const ofMesh& mesh)
{
ofFile file(path, ofFile::WriteOnly, true);
int numVerts = mesh.getNumVertices();
file.write((char *)(&numVerts), sizeof(int));
if (numVerts > 0) {
file.write((char *)(&(mesh.getVertices())[0]), sizeof(ofPoint) * numVerts);
}
int numNormals = mesh.getNumNormals();
file.write((char *)(&numNormals), sizeof(int));
if (numNormals > 0) {
file.write((char *)(&(mesh.getNormals())[0]), sizeof(ofPoint) * numNormals);
}
int numTexCoords = mesh.getNumTexCoords();
file.write((char *)(&numTexCoords), sizeof(int));
if (numTexCoords > 0) {
file.write((char *)(&(mesh.getTexCoords())[0]), sizeof(ofVec2f) * numTexCoords);
}
int numColors = mesh.getNumColors();
file.write((char *)(&numColors), sizeof(int));
if (numColors > 0) {
file.write((char *)(&(mesh.getColors())[0]), sizeof(ofFloatColor) * numColors);
}
int numIndices = mesh.getNumIndices();
file.write((char *)(&numIndices), sizeof(int));
if (numIndices > 0) {
file.write((char *)(&(mesh.getIndices())[0]), sizeof(ofIndexType) * numIndices);
}
file.close();
}
vector<pair<btVector3, btConvexHullShape*> > ofxBulletConvexDecomposer::decompose(const ofMesh &meshToDecompose, btVector3 scale )
{
assert( meshToDecompose.getMode() == OF_TRIANGLES_MODE );
vector<pair<btVector3, btConvexHullShape*> > convexShapes;
int tcount = meshToDecompose.getNumIndices()/3;
if ( tcount == 0 )
// nothing to do
return convexShapes;
// adapted from bullet-2.81-rev2613/Demos/ConvexDecompositionDemo/ConvexDecompositionDemo.cpp
/*
unsigned int depth = 5;
float cpercent = 5;
float ppercent = 15;
unsigned int maxv = 16;
float skinWidth = 0.0;
// ConvexDecomposition::WavefrontObj wo;
ConvexDecomposition::DecompDesc desc;
desc.mVcount = meshToDecompose.getNumVertices();
desc.mVertices = (float*)(meshToDecompose.getVerticesPointer());
desc.mTcount = meshToDecompose.getNumIndices()/3;
desc.mIndices = meshToDecompose.getIndexPointer();
desc.mDepth = depth;
desc.mCpercent = cpercent;
desc.mPpercent = ppercent;
desc.mMaxVertices = maxv;
desc.mSkinWidth = skinWidth;
desc.mCallback = this;
*/
//-----------------------------------------------
// HACD
//-----------------------------------------------
std::vector< HACD::Vec3<HACD::Real> > points;
std::vector< HACD::Vec3<long> > triangles;
for(int i=0; i<meshToDecompose.getNumVertices(); i++ )
{
ofVec3f meshVert = meshToDecompose.getVertex(i);
HACD::Vec3<HACD::Real> vertex( meshVert.x, meshVert.y, meshVert.z );
points.push_back(vertex);
}
for(int i=0;i<meshToDecompose.getNumIndices(); i+=3 )
{
HACD::Vec3<long> triangle(meshToDecompose.getIndex(i), meshToDecompose.getIndex(i+1), meshToDecompose.getIndex(i+2) );
triangles.push_back(triangle);
}
assert(triangles.size()==tcount);
HACD::HACD myHACD;
myHACD.SetPoints(&points[0]);
myHACD.SetNPoints(points.size());
myHACD.SetTriangles(&triangles[0]);
myHACD.SetNTriangles(triangles.size());
myHACD.SetCompacityWeight(0.1);
myHACD.SetVolumeWeight(0.0);
// HACD parameters
// Recommended parameters: 2 100 0 0 0 0
size_t nClusters = 2;
double concavity = 100;
bool invert = false;
bool addExtraDistPoints = false;
bool addNeighboursDistPoints = false;
bool addFacesPoints = false;
myHACD.SetNClusters(nClusters); // minimum number of clusters
myHACD.SetNVerticesPerCH(100); // max of 100 vertices per convex-hull
myHACD.SetConcavity(concavity); // maximum concavity
myHACD.SetAddExtraDistPoints(addExtraDistPoints);
myHACD.SetAddNeighboursDistPoints(addNeighboursDistPoints);
myHACD.SetAddFacesPoints(addFacesPoints);
myHACD.SetCallBack( hacdCallback );
myHACD.Compute();
nClusters = myHACD.GetNClusters();
int totalTriangles = 0;
int totalPoints = 0;
for (int c=0;c<nClusters;c++)
{
//generate convex result
size_t nPoints = myHACD.GetNPointsCH(c);
size_t nTriangles = myHACD.GetNTrianglesCH(c);
ofLogVerbose("ofxBulletConvexDecomposer") << "cluster " << c <<"/" << nClusters << " points " << nPoints << " triangles " << nTriangles;
float* vertices = new float[nPoints*3];
unsigned int* triangles = new unsigned int[nTriangles*3];
HACD::Vec3<HACD::Real> * pointsCH = new HACD::Vec3<HACD::Real>[nPoints];
HACD::Vec3<long> * trianglesCH = new HACD::Vec3<long>[nTriangles];
myHACD.GetCH(c, pointsCH, trianglesCH);
// points
for(size_t v = 0; v < nPoints; v++)
{
vertices[3*v] = pointsCH[v].X();
vertices[3*v+1] = pointsCH[v].Y();
vertices[3*v+2] = pointsCH[v].Z();
}
// triangles
for(size_t f = 0; f < nTriangles; f++)
{
triangles[3*f] = trianglesCH[f].X();
triangles[3*f+1] = trianglesCH[f].Y();
triangles[3*f+2] = trianglesCH[f].Z();
}
ConvexResult r(nPoints, vertices, nTriangles, triangles);
convexShapes.push_back( createConvexHullShapeFromConvexResult(r, scale) );
delete [] pointsCH;
delete [] trianglesCH;
delete [] vertices;
delete [] triangles;
totalTriangles += nTriangles;
}
return convexShapes;
}
void ofxPolyvox::polyvoxToOfMesh(const PolyVox::SurfaceMesh<PositionMaterialNormal>& surfaceMesh, ofMesh& polyvxToOfMesh, bool setColor){
//Convienient access to the vertices and indices
const vector<uint32_t>& vecIndices = surfaceMesh.getIndices();
const vector<PositionMaterialNormal>& vecVertices = surfaceMesh.getVertices();//surfaceMesh.getRawVertexData();
ofIndexType ofVecIndices;
const void* pIndices = static_cast<const void*>(&(vecIndices[0]));
int* indices = (int*)pIndices;
vector<int> indx;
for (int i = 0; i < surfaceMesh.getNoOfIndices(); i++ ){
indx.push_back(indices[i]);
//cout << "indices:" << indices[i] << endl;
polyvxToOfMesh.addIndex(indx[i]);
}
ofLog(OF_LOG_NOTICE, "ofMesh: number of indices is %d", polyvxToOfMesh.getNumIndices());
ofVec3f ofVecVertices;
for (int i = 0; i < surfaceMesh.getNoOfVertices(); i++ ){
PositionMaterialNormal vert0 = vecVertices[i];
ofVecVertices = ofVec3f(vert0.getPosition().getX(),vert0.getPosition().getY(),vert0.getPosition().getZ());
polyvxToOfMesh.addVertex(ofVecVertices);
}
ofLog(OF_LOG_NOTICE, "ofMesh: number of vertices is %d", polyvxToOfMesh.getNumVertices());
ofVec3f ofVecNormals;
for (int i = 0; i < surfaceMesh.getNoOfVertices(); i++ ){
PositionMaterialNormal vert0 = vecVertices[i];
ofVecNormals = ofVec3f(vert0.getNormal().getX(),vert0.getNormal().getY(),vert0.getNormal().getZ());
polyvxToOfMesh.addNormal(ofVecNormals);
}
ofLog(OF_LOG_NOTICE, "ofMesh: number of normals is %d", polyvxToOfMesh.getNumNormals());
if(setColor){
for (int i = 0; i < surfaceMesh.getNoOfVertices(); i++ ){
PositionMaterialNormal vert0 = vecVertices[i];
uint8_t material = static_cast<uint8_t>(vert0.getMaterial() + 0.5);
//cout << "material:" << int(material) << endl;
ofFloatColor colour = convertMaterialIDToColour(material);
//cout << colour << endl;
polyvxToOfMesh.addColor(colour);
bool col = polyvxToOfMesh.hasColors();
//cout << "hasColors:" << col << endl;
}
}
}
//--------------------------------------------------------------
void ofxBulletTriMeshShape::create( btDiscreteDynamicsWorld* a_world, ofMesh& aMesh, btTransform &a_bt_tr, float a_mass, glm::vec3 aAAbbMin, glm::vec3 aAAbbMax ) {
if( aMesh.getMode() != OF_PRIMITIVE_TRIANGLES ) {
ofLogWarning() << " ofxBulletTriMeshShape :: create : mesh must be using triangles, not creating!!" << endl;
return;
}
if( aMesh.getNumIndices() < 3 ) {
ofLogWarning() << " ofxBulletTriMeshShape :: create : mesh must have indices, not creating!" << endl;
return;
}
if( !_bInited || _shape == NULL ) {
int vertStride = sizeof(btVector3);
int indexStride = 3*sizeof(int);
totalVerts = (int)aMesh.getNumVertices();
totalIndices = (int)aMesh.getNumIndices();
const int totalTriangles = totalIndices / 3;
if( bullet_indices != NULL ) {
removeShape();
}
if( bullet_vertices != NULL ) {
removeShape();
}
if( bullet_indexVertexArrays != NULL ) {
removeShape();
}
if( _shape != NULL ) {
removeShape();
}
bullet_vertices = new btVector3[ totalVerts ];
bullet_indices = new int[ totalIndices ];
auto& tverts = aMesh.getVertices();
auto& tindices = aMesh.getIndices();
for( int i = 0; i < totalVerts; i++ ) {
bullet_vertices[i].setValue( tverts[i].x, tverts[i].y, tverts[i].z );
}
for( int i = 0; i < totalIndices; i++ ) {
bullet_indices[i] = (int)tindices[i];
}
bullet_indexVertexArrays = new btTriangleIndexVertexArray(totalTriangles, bullet_indices, indexStride,
totalVerts, (btScalar*) &bullet_vertices[0].x(), vertStride);
// if you are having trouble with objects falling through, try passing in smaller or larger aabbMin and aabbMax
// to something closer to the size of your object //
// btVector3 aabbMin(-10000,-10000,-10000),aabbMax(10000,10000,10000);
if( aAAbbMin.length() > 0 && aAAbbMax.length() > 0 ) {
btVector3 aabbMin( aAAbbMin.x, aAAbbMin.y, aAAbbMin.z );
btVector3 aabbMax( aAAbbMax.x, aAAbbMax.y, aAAbbMax.z );
_shape = new btBvhTriangleMeshShape(bullet_indexVertexArrays, true, aabbMin, aabbMax );
} else {
_shape = new btBvhTriangleMeshShape(bullet_indexVertexArrays, true, true );
}
}
ofxBulletRigidBody::create( a_world, _shape, a_bt_tr, a_mass );
createInternalUserData();
updateMesh( a_world, aMesh );
}
void ofCairoRenderer::draw(ofMesh & primitive, bool useColors, bool useTextures, bool useNormals){
if(primitive.getNumVertices() == 0){
return;
}
if(primitive.getNumIndices() == 0){
ofMesh indexedMesh = primitive;
indexedMesh.setupIndicesAuto();
draw(indexedMesh, useColors, useTextures, useNormals);
return;
}
pushMatrix();
cairo_matrix_init_identity(getCairoMatrix());
cairo_new_path(cr);
int i = 1;
ofVec3f v = transform(primitive.getVertex(primitive.getIndex(0)));
ofVec3f v2;
cairo_move_to(cr,v.x,v.y);
if(primitive.getMode()==OF_PRIMITIVE_TRIANGLE_STRIP){
v = transform(primitive.getVertex(primitive.getIndex(1)));
cairo_line_to(cr,v.x,v.y);
v = transform(primitive.getVertex(primitive.getIndex(2)));
cairo_line_to(cr,v.x,v.y);
i=2;
}
for(; i<primitive.getNumIndices(); i++){
v = transform(primitive.getVertex(primitive.getIndex(i)));
switch(primitive.getMode()){
case(OF_PRIMITIVE_TRIANGLES):
if((i+1)%3==0){
cairo_line_to(cr,v.x,v.y);
v2 = transform(primitive.getVertex(primitive.getIndex(i-2)));
cairo_line_to(cr,v2.x,v2.y);
cairo_move_to(cr,v.x,v.y);
}else if((i+3)%3==0){
cairo_move_to(cr,v.x,v.y);
}else{
cairo_line_to(cr,v.x,v.y);
}
break;
case(OF_PRIMITIVE_TRIANGLE_STRIP):
v2 = transform(primitive.getVertex(primitive.getIndex(i-2)));
cairo_line_to(cr,v.x,v.y);
cairo_line_to(cr,v2.x,v2.y);
cairo_move_to(cr,v.x,v.y);
break;
case(OF_PRIMITIVE_TRIANGLE_FAN):
/*triangles.addIndex((GLuint)0);
triangles.addIndex((GLuint)1);
triangles.addIndex((GLuint)2);
for(int i = 2; i < primitive.getNumVertices()-1;i++){
triangles.addIndex((GLuint)0);
triangles.addIndex((GLuint)i);
triangles.addIndex((GLuint)i+1);
}*/
break;
default:break;
}
}
cairo_move_to(cr,primitive.getVertex(primitive.getIndex(primitive.getNumIndices()-1)).x,primitive.getVertex(primitive.getIndex(primitive.getNumIndices()-1)).y);
if(ofGetStyle().lineWidth>0){
cairo_stroke( cr );
}
popMatrix();
}
void ofCairoRenderer::draw(const ofMesh & primitive, ofPolyRenderMode mode, bool useColors, bool useTextures, bool useNormals) const{
if(useColors || useTextures || useNormals){
ofLogWarning("ofCairoRenderer") << "draw(): cairo mesh rendering doesn't support colors, textures, or normals. drawing wireframe ...";
}
if(primitive.getNumVertices() == 0){
return;
}
if(primitive.getNumIndices() == 0){
ofMesh indexedMesh = primitive;
indexedMesh.setupIndicesAuto();
draw(indexedMesh, mode, useColors, useTextures, useNormals);
return;
}
cairo_new_path(cr);
cairo_matrix_t matrix;
cairo_matrix_init_identity(&matrix);
cairo_new_path(cr);
std::size_t i = 1;
ofVec3f v = transform(primitive.getVertex(primitive.getIndex(0)));
ofVec3f v2;
cairo_move_to(cr,v.x,v.y);
if(primitive.getMode()==OF_PRIMITIVE_TRIANGLE_STRIP){
v = transform(primitive.getVertex(primitive.getIndex(1)));
cairo_line_to(cr,v.x,v.y);
v = transform(primitive.getVertex(primitive.getIndex(2)));
cairo_line_to(cr,v.x,v.y);
i=2;
}
for(; i<primitive.getNumIndices(); i++){
v = transform(primitive.getVertex(primitive.getIndex(i)));
switch(primitive.getMode()){
case(OF_PRIMITIVE_TRIANGLES):
if((i+1)%3==0){
cairo_line_to(cr,v.x,v.y);
v2 = transform(primitive.getVertex(primitive.getIndex(i-2)));
cairo_line_to(cr,v2.x,v2.y);
cairo_move_to(cr,v.x,v.y);
}else if((i+3)%3==0){
cairo_move_to(cr,v.x,v.y);
}else{
cairo_line_to(cr,v.x,v.y);
}
break;
case(OF_PRIMITIVE_TRIANGLE_STRIP):
v2 = transform(primitive.getVertex(primitive.getIndex(i-2)));
cairo_line_to(cr,v.x,v.y);
cairo_line_to(cr,v2.x,v2.y);
cairo_move_to(cr,v.x,v.y);
break;
case(OF_PRIMITIVE_TRIANGLE_FAN):
/*triangles.addIndex((GLuint)0);
triangles.addIndex((GLuint)1);
triangles.addIndex((GLuint)2);
for(int i = 2; i < primitive.getNumVertices()-1;i++){
triangles.addIndex((GLuint)0);
triangles.addIndex((GLuint)i);
triangles.addIndex((GLuint)i+1);
}*/
break;
default:break;
}
}
cairo_move_to(cr,primitive.getVertex(primitive.getIndex(primitive.getNumIndices()-1)).x,primitive.getVertex(primitive.getIndex(primitive.getNumIndices()-1)).y);
if(currentStyle.lineWidth>0){
cairo_stroke( cr );
}
}
size_t polygonCount() const {
return mesh->getNumIndices() / 3;
}
void ofCairoRenderer::draw(ofMesh & primitive){
if(primitive.getNumVertices()==0) return;
pushMatrix();
cairo_matrix_init_identity(getCairoMatrix());
cairo_new_path(cr);
//if(indices.getNumIndices()){
int i = 1;
ofVec3f v = transform(primitive.getVertex(primitive.getIndex(0)));
ofVec3f v2;
cairo_move_to(cr,v.x,v.y);
if(primitive.getMode()==OF_TRIANGLE_STRIP_MODE){
v = transform(primitive.getVertex(primitive.getIndex(1)));
cairo_line_to(cr,v.x,v.y);
v = transform(primitive.getVertex(primitive.getIndex(2)));
cairo_line_to(cr,v.x,v.y);
i=2;
}
for(; i<primitive.getNumIndices(); i++){
v = transform(primitive.getVertex(primitive.getIndex(i)));
switch(primitive.getMode()){
case(OF_TRIANGLES_MODE):
if((i+1)%3==0){
cairo_line_to(cr,v.x,v.y);
v2 = transform(primitive.getVertex(primitive.getIndex(i-2)));
cairo_line_to(cr,v2.x,v2.y);
cairo_move_to(cr,v.x,v.y);
}else if((i+3)%3==0){
cairo_move_to(cr,v.x,v.y);
}else{
cairo_line_to(cr,v.x,v.y);
}
break;
case(OF_TRIANGLE_STRIP_MODE):
v2 = transform(primitive.getVertex(primitive.getIndex(i-2)));
cairo_line_to(cr,v.x,v.y);
cairo_line_to(cr,v2.x,v2.y);
cairo_move_to(cr,v.x,v.y);
break;
case(OF_TRIANGLE_FAN_MODE):
/*triangles.addIndex((GLuint)0);
triangles.addIndex((GLuint)1);
triangles.addIndex((GLuint)2);
for(int i = 2; i < primitive.getNumVertices()-1;i++){
triangles.addIndex((GLuint)0);
triangles.addIndex((GLuint)i);
triangles.addIndex((GLuint)i+1);
}*/
break;
default:break;
}
}
cairo_move_to(cr,primitive.getVertex(primitive.getIndex(primitive.getNumIndices()-1)).x,primitive.getVertex(primitive.getIndex(primitive.getNumIndices()-1)).y);
if(ofGetStyle().lineWidth>0){
cairo_stroke( cr );
}
popMatrix();
}
