void MeshTools::createSkinnedMeshWithTangents(scene::ISkinnedMesh* mesh,
bool(*predicate)(scene::IMeshBuffer*))
{
core::array<scene::SSkinMeshBuffer*>& all_mb = mesh->getMeshBuffers();
const int all_mb_size = all_mb.size();
for (int i = 0; i < all_mb_size; i++)
{
scene::SSkinMeshBuffer* mb = all_mb[i];
if (mb && predicate(mb))
{
mb->convertToTangents();
const int index_count = mb->getIndexCount();
uint16_t* idx = mb->getIndices();
video::S3DVertexTangents* v =
(video::S3DVertexTangents*)mb->getVertices();
for (int i = 0; i < index_count; i += 3)
{
calculateTangents(
v[idx[i+0]].Normal,
v[idx[i+0]].Tangent,
v[idx[i+0]].Binormal,
v[idx[i+0]].Pos,
v[idx[i+1]].Pos,
v[idx[i+2]].Pos,
v[idx[i+0]].TCoords,
v[idx[i+1]].TCoords,
v[idx[i+2]].TCoords);
calculateTangents(
v[idx[i+1]].Normal,
v[idx[i+1]].Tangent,
v[idx[i+1]].Binormal,
v[idx[i+1]].Pos,
v[idx[i+2]].Pos,
v[idx[i+0]].Pos,
v[idx[i+1]].TCoords,
v[idx[i+2]].TCoords,
v[idx[i+0]].TCoords);
calculateTangents(
v[idx[i+2]].Normal,
v[idx[i+2]].Tangent,
v[idx[i+2]].Binormal,
v[idx[i+2]].Pos,
v[idx[i+0]].Pos,
v[idx[i+1]].Pos,
v[idx[i+2]].TCoords,
v[idx[i+0]].TCoords,
v[idx[i+1]].TCoords);
}
}
}
}
double tangentDistance(const double * imageOne, const double * imageTwo,
const int height, const int width, const int * choice, const double background){
int i,numTangents=0,numTangentsRemaining;
double ** tangents,dist;
int size=width*height;
for(i=0;i<maxNumTangents;++i) {
if(choice[i]>0) numTangents++;
}
tangents=(double **)malloc(numTangents*sizeof(double *));
for(i=0;i<numTangents;++i) {
tangents[i]=(double *)malloc(size*sizeof(double));
}
calculateTangents(imageOne, tangents, numTangents, height, width, choice, background);
numTangentsRemaining = normalizeTangents(tangents, numTangents, height, width);
dist=calculateDistance(imageOne, imageTwo, (const double **) tangents, numTangentsRemaining, height, width);
for(i=0;i<numTangents;++i) {
free(tangents[i]);
}
free(tangents);
return dist;
}
void Mesh::createVPlane(Number w, Number h) {
Polygon *imagePolygon = new Polygon();
imagePolygon->addVertex(0,0,0,0,0);
imagePolygon->addVertex(w,0,0, 1, 0);
imagePolygon->addVertex(w,h,0, 1, 1);
imagePolygon->addVertex(0,h,0,0,1);
addPolygon(imagePolygon);
for(int i=0; i < polygons.size(); i++) {
for(int j=0; j < polygons[i]->getVertexCount(); j++) {
polygons[i]->getVertex(j)->x = polygons[i]->getVertex(j)->x - (w/2.0f);
polygons[i]->getVertex(j)->y = polygons[i]->getVertex(j)->y - (h/2.0f);
}
}
calculateNormals();
calculateTangents();
arrayDirtyMap[RenderDataArray::VERTEX_DATA_ARRAY] = true;
arrayDirtyMap[RenderDataArray::COLOR_DATA_ARRAY] = true;
arrayDirtyMap[RenderDataArray::TEXCOORD_DATA_ARRAY] = true;
arrayDirtyMap[RenderDataArray::NORMAL_DATA_ARRAY] = true;
arrayDirtyMap[RenderDataArray::TANGENT_DATA_ARRAY] = true;
}
void Mesh::createCone(Number height, Number radius, int numSegments) {
setMeshType(Mesh::TRI_MESH);
Number lastx = -1;
Number lastz = -1;
for (int i=0 ; i < numSegments+1; i++) {
Number pos = ((PI*2.0)/((Number)numSegments)) * i;
Number x = sinf(pos) * radius;
Number z = cosf(pos) * radius;
if(i > 0) { // ie only construct faces one we have vertexes from i-1 to use.
Polygon *polygon = new Polygon();
polygon->addVertex(lastx,0,lastz,0,0);
polygon->addVertex(x,0,z, 1, 0);
polygon->addVertex(0,height,0, 1, 1);
addPolygon(polygon);
polygon = new Polygon();
polygon->addVertex(x,0,z, 1, 1);
polygon->addVertex(lastx,0,lastz, 1, 1);
polygon->addVertex(0,0,0,0,0);
addPolygon(polygon);
}
lastx = x;
lastz = z;
/*
Polygon *polygon = new Polygon();
polygon->addVertex(w,0,h, 1, 1);
polygon->addVertex(0,0,h, 1, 0);
polygon->addVertex(0,0,0,0,0);
polygon->addVertex(w,0,0,0,1);
addPolygon(polygon);
*/
}
for(int i=0; i < polygons.size(); i++) {
for(int j=0; j < polygons[i]->getVertexCount(); j++) {
// polygons[i]->getVertex(j)->x = polygons[i]->getVertex(j)->x - (radius/2.0f);
polygons[i]->getVertex(j)->y = polygons[i]->getVertex(j)->y - (height/2.0f);
// polygons[i]->getVertex(j)->z = polygons[i]->getVertex(j)->z - (radius/2.0f);
}
}
calculateNormals();
calculateTangents();
arrayDirtyMap[RenderDataArray::VERTEX_DATA_ARRAY] = true;
arrayDirtyMap[RenderDataArray::COLOR_DATA_ARRAY] = true;
arrayDirtyMap[RenderDataArray::TEXCOORD_DATA_ARRAY] = true;
arrayDirtyMap[RenderDataArray::NORMAL_DATA_ARRAY] = true;
arrayDirtyMap[RenderDataArray::TANGENT_DATA_ARRAY] = true;
}
void mexFunction(int nlhs, mxArray *plhs[], int nrhs,
const mxArray *prhs[])
{
int row1,row2,col,ww;
int choice[]={1,1,1,1,1,1,1,1,1};
/*={0,0,0,0,0,0,1,0,0};*/
/*choice[]={1,1,1,1,1,1,0,0,0};*/
double * img1, *img2, *imgout,background=0.0;
/*1) Read */
/*test*/
img1= mxGetPr(prhs[0]);
/*train*/
img2= mxGetPr(prhs[1]);
/*choice =mxGetPr(prhs[2]);*/
row1= mxGetN(prhs[0]);
row2= mxGetN(prhs[0]);
col= mxGetM(prhs[0]);
ww=(int)sqrt(col);
/*2) Calculate the tangent space at train */
int i,numTangents=0,numTangentsRemaining;
double ** tangents;
for(i=0;i<maxNumTangents;++i) {
/*printf("nn %d,%\n",i,choice[i]);*/
if(choice[i]>0) numTangents++;
}
tangents=(double **)malloc(numTangents*sizeof(double *));
for(i=0;i<numTangents;++i) {
tangents[i]=(double *)malloc(col*sizeof(double));
}
/* determine the tangents of the first image*/
calculateTangents(img2, tangents, numTangents,ww,ww, choice, background);
/* find the orthonormal tangent subspace */
numTangentsRemaining = normalizeTangents(tangents, numTangents, ww, ww);
/*3) Project test onto the tangent space*/
plhs[0] =mxCreateDoubleMatrix(1,col, mxREAL);
imgout = mxGetPr(plhs[0]);
calculateClosest(img2, img1,tangents, numTangents, col,imgout);
for(i=0;i<numTangents;++i) {
free(tangents[i]);
}
free(tangents);
}
void mesh::loadMesh(std::string fileLocation) {
//assumes pattern:
//vert count, tri count
//vertices, triangles, normals, texcoords
std::ifstream fileStream(fileLocation);
fileStream >> vertCount;
fileStream >> triCount;
triangles.resize(3 * triCount);
normals.resize(3 * vertCount);
vertices.resize(3 * vertCount);
texCoords.resize(2 * vertCount);
std::string trash;
fileStream >> trash;
//read and store vertex positions
for(int i = 0; i < 3*vertCount; i++) {
fileStream >> vertices[i];
}
fileStream >> trash;
//read and store triangles (vertex indices)
for(int j = 0; j < 3*triCount; j++) {
fileStream >> triangles[j];
}
fileStream >> trash;
//read and store normals
for(int k = 0; k < 3*vertCount; k++) {
fileStream >> normals[k];
}
fileStream >> trash;
//read and store texture coordinates
for(int l = 0; l < 2*vertCount; l++) {
fileStream >> texCoords[l];
}
fileStream.close();
calculateTangents();
setupBuffers();
}
// Constructor. Copy the provided picoSurface_t structure into this object
RenderablePicoSurface::RenderablePicoSurface(picoSurface_t* surf,
const std::string& fExt)
: _shaderName(""),
_dlRegular(0),
_dlProgramVcol(0),
_dlProgramNoVCol(0)
{
// Get the shader from the picomodel struct. If this is a LWO model, use
// the material name to select the shader, while for an ASE model the
// bitmap path should be used.
picoShader_t* shader = PicoGetSurfaceShader(surf);
std::string rawName = "";
if (shader != 0)
{
if (fExt == "lwo")
{
_shaderName = PicoGetShaderName(shader);
}
else if (fExt == "ase")
{
rawName = PicoGetShaderName(shader);
std::string rawMapName = PicoGetShaderMapName(shader);
_shaderName = cleanupShaderName(rawMapName);
}
}
// If shader not found, fallback to alternative if available
// _shaderName is empty if the ase material has no BITMAP
// materialIsValid is false if _shaderName is not an existing shader
if ((_shaderName.empty() || !GlobalMaterialManager().materialExists(_shaderName)) &&
!rawName.empty())
{
_shaderName = cleanupShaderName(rawName);
}
// Capturing the shader happens later on when we have a RenderSystem reference
// Get the number of vertices and indices, and reserve capacity in our
// vectors in advance by populating them with empty structs.
int nVerts = PicoGetSurfaceNumVertexes(surf);
_nIndices = PicoGetSurfaceNumIndexes(surf);
_vertices.resize(nVerts);
_indices.resize(_nIndices);
// Stream in the vertex data from the raw struct, expanding the local AABB
// to include each vertex.
for (int vNum = 0; vNum < nVerts; ++vNum) {
// Get the vertex position and colour
Vertex3f vertex(PicoGetSurfaceXYZ(surf, vNum));
// Expand the AABB to include this new vertex
_localAABB.includePoint(vertex);
_vertices[vNum].vertex = vertex;
_vertices[vNum].normal = Normal3f(PicoGetSurfaceNormal(surf, vNum));
_vertices[vNum].texcoord = TexCoord2f(PicoGetSurfaceST(surf, 0, vNum));
_vertices[vNum].colour =
getColourVector(PicoGetSurfaceColor(surf, 0, vNum));
}
// Stream in the index data
picoIndex_t* ind = PicoGetSurfaceIndexes(surf, 0);
for (unsigned int i = 0; i < _nIndices; i++)
_indices[i] = ind[i];
// Calculate the tangent and bitangent vectors
calculateTangents();
// Construct the DLs
createDisplayLists();
}
void recalculateTangentsT(scene::IMeshBuffer* buffer, bool recalculate_normals, bool smooth, bool angle_weighted)
{
if (!buffer || (buffer->getVertexType() != video::EVT_TANGENTS))
return;
const u32 vtxCnt = buffer->getVertexCount();
const u32 idxCnt = buffer->getIndexCount();
T* idx = reinterpret_cast<T*>(buffer->getIndices());
video::S3DVertexTangents* v =
(video::S3DVertexTangents*)buffer->getVertices();
if (smooth)
{
u32 i;
for (i = 0; i != vtxCnt; ++i)
{
if (recalculate_normals)
v[i].Normal.set(0.f, 0.f, 0.f);
v[i].Tangent.set(0.f, 0.f, 0.f);
v[i].Binormal.set(0.f, 0.f, 0.f);
}
//Each vertex gets the sum of the tangents and binormals from the faces around it
for (i = 0; i<idxCnt; i += 3)
{
// if this triangle is degenerate, skip it!
if (v[idx[i + 0]].Pos == v[idx[i + 1]].Pos ||
v[idx[i + 0]].Pos == v[idx[i + 2]].Pos ||
v[idx[i + 1]].Pos == v[idx[i + 2]].Pos
/*||
v[idx[i+0]].TCoords == v[idx[i+1]].TCoords ||
v[idx[i+0]].TCoords == v[idx[i+2]].TCoords ||
v[idx[i+1]].TCoords == v[idx[i+2]].TCoords */
)
continue;
//Angle-weighted normals look better, but are slightly more CPU intensive to calculate
core::vector3df weight(1.f, 1.f, 1.f);
if (angle_weighted)
weight = getAngleWeight(v[i + 0].Pos, v[i + 1].Pos, v[i + 2].Pos);
core::vector3df localNormal;
core::vector3df localTangent;
core::vector3df localBinormal;
calculateTangents(
localNormal,
localTangent,
localBinormal,
v[idx[i + 0]].Pos,
v[idx[i + 1]].Pos,
v[idx[i + 2]].Pos,
v[idx[i + 0]].TCoords,
v[idx[i + 1]].TCoords,
v[idx[i + 2]].TCoords);
if (recalculate_normals)
v[idx[i + 0]].Normal += localNormal * weight.X;
v[idx[i + 0]].Tangent += localTangent * weight.X;
v[idx[i + 0]].Binormal += localBinormal * weight.X;
calculateTangents(
localNormal,
localTangent,
localBinormal,
v[idx[i + 1]].Pos,
v[idx[i + 2]].Pos,
v[idx[i + 0]].Pos,
v[idx[i + 1]].TCoords,
v[idx[i + 2]].TCoords,
v[idx[i + 0]].TCoords);
if (recalculate_normals)
v[idx[i + 1]].Normal += localNormal * weight.Y;
v[idx[i + 1]].Tangent += localTangent * weight.Y;
v[idx[i + 1]].Binormal += localBinormal * weight.Y;
calculateTangents(
localNormal,
localTangent,
localBinormal,
v[idx[i + 2]].Pos,
v[idx[i + 0]].Pos,
v[idx[i + 1]].Pos,
v[idx[i + 2]].TCoords,
v[idx[i + 0]].TCoords,
v[idx[i + 1]].TCoords);
if (recalculate_normals)
v[idx[i + 2]].Normal += localNormal * weight.Z;
v[idx[i + 2]].Tangent += localTangent * weight.Z;
v[idx[i + 2]].Binormal += localBinormal * weight.Z;
}
// Normalize the tangents and binormals
if (recalculate_normals)
{
for (i = 0; i != vtxCnt; ++i)
v[i].Normal.normalize();
}
for (i = 0; i != vtxCnt; ++i)
{
v[i].Tangent.normalize();
v[i].Binormal.normalize();
}
}
else
{
core::vector3df localNormal;
for (u32 i = 0; i<idxCnt; i += 3)
{
calculateTangents(
localNormal,
v[idx[i + 0]].Tangent,
v[idx[i + 0]].Binormal,
v[idx[i + 0]].Pos,
v[idx[i + 1]].Pos,
v[idx[i + 2]].Pos,
v[idx[i + 0]].TCoords,
v[idx[i + 1]].TCoords,
v[idx[i + 2]].TCoords);
if (recalculate_normals)
v[idx[i + 0]].Normal = localNormal;
calculateTangents(
localNormal,
v[idx[i + 1]].Tangent,
v[idx[i + 1]].Binormal,
v[idx[i + 1]].Pos,
v[idx[i + 2]].Pos,
v[idx[i + 0]].Pos,
v[idx[i + 1]].TCoords,
v[idx[i + 2]].TCoords,
v[idx[i + 0]].TCoords);
if (recalculate_normals)
v[idx[i + 1]].Normal = localNormal;
calculateTangents(
localNormal,
v[idx[i + 2]].Tangent,
v[idx[i + 2]].Binormal,
v[idx[i + 2]].Pos,
v[idx[i + 0]].Pos,
v[idx[i + 1]].Pos,
v[idx[i + 2]].TCoords,
v[idx[i + 0]].TCoords,
v[idx[i + 1]].TCoords);
if (recalculate_normals)
v[idx[i + 2]].Normal = localNormal;
}
}
}
void MeshUtility::calculateTangentSpace(Vector3* vertices, Vector2* uv, UINT8* indices, UINT32 numVertices,
UINT32 numIndices, Vector3* normals, Vector3* tangents, Vector3* bitangents, UINT32 indexSize)
{
calculateNormals(vertices, indices, numVertices, numIndices, normals, indexSize);
calculateTangents(vertices, normals, uv, indices, numVertices, numIndices, tangents, bitangents, indexSize);
}
uint32_t objToBin(const uint8_t* _objData
, bx::WriterSeekerI* _writer
, uint32_t _packUv
, uint32_t _packNormal
, bool _ccw
, bool _flipV
, bool _hasTangent
, float _scale
)
{
int64_t parseElapsed = -bx::getHPCounter();
int64_t triReorderElapsed = 0;
const int64_t begin = _writer->seek();
Vector3Array positions;
Vector3Array normals;
Vector3Array texcoords;
Index3Map indexMap;
TriangleArray triangles;
BgfxGroupArray groups;
uint32_t num = 0;
MeshGroup group;
group.m_startTriangle = 0;
group.m_numTriangles = 0;
group.m_name = "";
group.m_material = "";
char commandLine[2048];
uint32_t len = sizeof(commandLine);
int argc;
char* argv[64];
const char* next = (const char*)_objData;
do
{
next = bx::tokenizeCommandLine(next, commandLine, len, argc, argv, BX_COUNTOF(argv), '\n');
if (0 < argc)
{
if (0 == strcmp(argv[0], "#") )
{
if (2 < argc
&& 0 == strcmp(argv[2], "polygons") )
{
}
}
else if (0 == strcmp(argv[0], "f") )
{
Triangle triangle;
memset(&triangle, 0, sizeof(Triangle) );
const int numNormals = (int)normals.size();
const int numTexcoords = (int)texcoords.size();
const int numPositions = (int)positions.size();
for (uint32_t edge = 0, numEdges = argc-1; edge < numEdges; ++edge)
{
Index3 index;
index.m_texcoord = 0;
index.m_normal = 0;
index.m_vertexIndex = -1;
char* vertex = argv[edge+1];
char* texcoord = strchr(vertex, '/');
if (NULL != texcoord)
{
*texcoord++ = '\0';
char* normal = strchr(texcoord, '/');
if (NULL != normal)
{
*normal++ = '\0';
const int nn = atoi(normal);
index.m_normal = (nn < 0) ? nn+numNormals : nn-1;
}
const int tex = atoi(texcoord);
index.m_texcoord = (tex < 0) ? tex+numTexcoords : tex-1;
}
const int pos = atoi(vertex);
index.m_position = (pos < 0) ? pos+numPositions : pos-1;
uint64_t hash0 = index.m_position;
uint64_t hash1 = uint64_t(index.m_texcoord)<<20;
uint64_t hash2 = uint64_t(index.m_normal)<<40;
uint64_t hash = hash0^hash1^hash2;
CS_STL::pair<Index3Map::iterator, bool> result = indexMap.insert(CS_STL::make_pair(hash, index) );
if (!result.second)
{
Index3& oldIndex = result.first->second;
BX_UNUSED(oldIndex);
BX_CHECK(oldIndex.m_position == index.m_position
&& oldIndex.m_texcoord == index.m_texcoord
&& oldIndex.m_normal == index.m_normal
, "Hash collision!"
);
}
switch (edge)
{
case 0:
case 1:
case 2:
triangle.m_index[edge] = hash;
if (2 == edge)
{
if (_ccw)
{
std::swap(triangle.m_index[1], triangle.m_index[2]);
}
triangles.push_back(triangle);
}
break;
default:
if (_ccw)
{
triangle.m_index[2] = triangle.m_index[1];
triangle.m_index[1] = hash;
}
else
{
triangle.m_index[1] = triangle.m_index[2];
triangle.m_index[2] = hash;
}
triangles.push_back(triangle);
break;
}
}
}
else if (0 == strcmp(argv[0], "g") )
{
if (1 >= argc)
{
CS_PRINT("Error parsing *.obj file.\n");
return 0;
}
group.m_name = argv[1];
}
else if (*argv[0] == 'v')
{
group.m_numTriangles = (uint32_t)(triangles.size() ) - group.m_startTriangle;
if (0 < group.m_numTriangles)
{
groups.push_back(group);
group.m_startTriangle = (uint32_t)(triangles.size() );
group.m_numTriangles = 0;
}
if (0 == strcmp(argv[0], "vn") )
{
Vector3 normal;
normal.x = (float)atof(argv[1]);
normal.y = (float)atof(argv[2]);
normal.z = (float)atof(argv[3]);
normals.push_back(normal);
}
else if (0 == strcmp(argv[0], "vp") )
{
static bool once = true;
if (once)
{
once = false;
CS_PRINT("warning: 'parameter space vertices' are unsupported.\n");
}
}
else if (0 == strcmp(argv[0], "vt") )
{
Vector3 texcoord;
texcoord.x = (float)atof(argv[1]);
texcoord.y = 0.0f;
texcoord.z = 0.0f;
switch (argc)
{
case 4:
texcoord.z = (float)atof(argv[3]);
// fallthrough
case 3:
texcoord.y = (float)atof(argv[2]);
break;
default:
break;
}
texcoords.push_back(texcoord);
}
else
{
float px = (float)atof(argv[1]);
float py = (float)atof(argv[2]);
float pz = (float)atof(argv[3]);
float pw = 1.0f;
if (argc > 4)
{
pw = (float)atof(argv[4]);
}
float invW = _scale/pw;
px *= invW;
py *= invW;
pz *= invW;
Vector3 pos;
pos.x = px;
pos.y = py;
pos.z = pz;
positions.push_back(pos);
}
}
else if (0 == strcmp(argv[0], "usemtl") )
{
std::string material(argv[1]);
if (material != group.m_material)
{
group.m_numTriangles = (uint32_t)(triangles.size() ) - group.m_startTriangle;
if (0 < group.m_numTriangles)
{
groups.push_back(group);
group.m_startTriangle = (uint32_t)(triangles.size() );
group.m_numTriangles = 0;
}
}
group.m_material = material;
}
// unsupported tags
// else if (0 == strcmp(argv[0], "mtllib") )
// {
// }
// else if (0 == strcmp(argv[0], "o") )
// {
// }
// else if (0 == strcmp(argv[0], "s") )
// {
// }
}
++num;
}
while ('\0' != *next);
group.m_numTriangles = (uint32_t)(triangles.size() ) - group.m_startTriangle;
if (0 < group.m_numTriangles)
{
groups.push_back(group);
group.m_startTriangle = (uint32_t)(triangles.size() );
group.m_numTriangles = 0;
}
int64_t now = bx::getHPCounter();
parseElapsed += now;
int64_t convertElapsed = -now;
std::sort(groups.begin(), groups.end(), GroupSortByMaterial() );
bool hasColor = false;
bool hasNormal;
bool hasTexcoord;
{
Index3Map::const_iterator it = indexMap.begin();
hasNormal = 0 != it->second.m_normal;
hasTexcoord = 0 != it->second.m_texcoord;
if (!hasTexcoord
&& texcoords.size() == positions.size() )
{
hasTexcoord = true;
for (Index3Map::iterator it = indexMap.begin(), itEnd = indexMap.end(); it != itEnd; ++it)
{
it->second.m_texcoord = it->second.m_position;
}
}
if (!hasNormal
&& normals.size() == positions.size() )
{
hasNormal = true;
for (Index3Map::iterator it = indexMap.begin(), itEnd = indexMap.end(); it != itEnd; ++it)
{
it->second.m_normal = it->second.m_position;
}
}
}
bgfx::VertexDecl decl;
decl.begin();
decl.add(bgfx::Attrib::Position, 3, bgfx::AttribType::Float);
if (hasColor)
{
decl.add(bgfx::Attrib::Color0, 4, bgfx::AttribType::Uint8, true);
}
if (hasTexcoord)
{
switch (_packUv)
{
default:
case 0:
decl.add(bgfx::Attrib::TexCoord0, 2, bgfx::AttribType::Float);
break;
case 1:
decl.add(bgfx::Attrib::TexCoord0, 2, bgfx::AttribType::Half);
break;
}
}
if (hasNormal)
{
_hasTangent &= hasTexcoord;
switch (_packNormal)
{
default:
case 0:
decl.add(bgfx::Attrib::Normal, 3, bgfx::AttribType::Float);
if (_hasTangent)
{
decl.add(bgfx::Attrib::Tangent, 4, bgfx::AttribType::Float);
}
break;
case 1:
decl.add(bgfx::Attrib::Normal, 4, bgfx::AttribType::Uint8, true, true);
if (_hasTangent)
{
decl.add(bgfx::Attrib::Tangent, 4, bgfx::AttribType::Uint8, true, true);
}
break;
}
}
decl.end();
uint32_t stride = decl.getStride();
uint8_t* vertexData = new uint8_t[triangles.size() * 3 * stride];
uint16_t* indexData = new uint16_t[triangles.size() * 3];
int32_t numVertices = 0;
int32_t numIndices = 0;
int32_t numPrimitives = 0;
uint8_t* vertices = vertexData;
uint16_t* indices = indexData;
std::string material = groups.begin()->m_material;
BgfxPrimitiveArray primitives;
Primitive prim;
prim.m_startVertex = 0;
prim.m_startIndex = 0;
uint32_t positionOffset = decl.getOffset(bgfx::Attrib::Position);
uint32_t color0Offset = decl.getOffset(bgfx::Attrib::Color0);
uint32_t ii = 0;
for (BgfxGroupArray::const_iterator groupIt = groups.begin(); groupIt != groups.end(); ++groupIt, ++ii)
{
for (uint32_t tri = groupIt->m_startTriangle, end = tri + groupIt->m_numTriangles; tri < end; ++tri)
{
if (material != groupIt->m_material
|| 65533 < numVertices)
{
prim.m_numVertices = numVertices - prim.m_startVertex;
prim.m_numIndices = numIndices - prim.m_startIndex;
if (0 < prim.m_numVertices)
{
primitives.push_back(prim);
}
triReorderElapsed -= bx::getHPCounter();
for (BgfxPrimitiveArray::const_iterator primIt = primitives.begin(); primIt != primitives.end(); ++primIt)
{
const Primitive& prim = *primIt;
triangleReorder(indexData + prim.m_startIndex, prim.m_numIndices, numVertices, 32);
}
triReorderElapsed += bx::getHPCounter();
if (_hasTangent)
{
calculateTangents(vertexData, numVertices, decl, indexData, numIndices);
}
write(_writer
, vertexData
, numVertices
, decl
, indexData
, numIndices
, material.c_str()
, primitives.data()
, (uint32_t)primitives.size()
);
primitives.clear();
for (Index3Map::iterator indexIt = indexMap.begin(); indexIt != indexMap.end(); ++indexIt)
{
indexIt->second.m_vertexIndex = -1;
}
vertices = vertexData;
indices = indexData;
numVertices = 0;
numIndices = 0;
prim.m_startVertex = 0;
prim.m_startIndex = 0;
++numPrimitives;
material = groupIt->m_material;
}
Triangle& triangle = triangles[tri];
for (uint32_t edge = 0; edge < 3; ++edge)
{
uint64_t hash = triangle.m_index[edge];
Index3& index = indexMap[hash];
if (index.m_vertexIndex == -1)
{
index.m_vertexIndex = numVertices++;
float* position = (float*)(vertices + positionOffset);
memcpy(position, &positions[index.m_position], 3*sizeof(float) );
if (hasColor)
{
uint32_t* color0 = (uint32_t*)(vertices + color0Offset);
*color0 = rgbaToAbgr(numVertices%255, numIndices%255, 0, 0xff);
}
if (hasTexcoord)
{
float uv[2];
memcpy(uv, &texcoords[index.m_texcoord], 2*sizeof(float) );
if (_flipV)
{
uv[1] = -uv[1];
}
bgfx::vertexPack(uv, true, bgfx::Attrib::TexCoord0, decl, vertices);
}
if (hasNormal)
{
float normal[4];
bx::vec3Norm(normal, (float*)&normals[index.m_normal]);
bgfx::vertexPack(normal, true, bgfx::Attrib::Normal, decl, vertices);
}
vertices += stride;
}
*indices++ = (uint16_t)index.m_vertexIndex;
++numIndices;
}
}
if (0 < numVertices)
{
prim.m_numVertices = numVertices - prim.m_startVertex;
prim.m_numIndices = numIndices - prim.m_startIndex;
bx::strlcpy(prim.m_name, groupIt->m_name.c_str(), 128);
primitives.push_back(prim);
prim.m_startVertex = numVertices;
prim.m_startIndex = numIndices;
}
//CS_PRINT("%3d: s %5d, n %5d, %s\n"
// , ii
// , groupIt->m_startTriangle
// , groupIt->m_numTriangles
// , groupIt->m_material.c_str()
// );
}
if (0 < primitives.size() )
{
triReorderElapsed -= bx::getHPCounter();
for (BgfxPrimitiveArray::const_iterator primIt = primitives.begin(); primIt != primitives.end(); ++primIt)
{
const Primitive& prim = *primIt;
triangleReorder(indexData + prim.m_startIndex, prim.m_numIndices, numVertices, 32);
}
triReorderElapsed += bx::getHPCounter();
if (_hasTangent)
{
calculateTangents(vertexData, numVertices, decl, indexData, numIndices);
}
write(_writer, vertexData, numVertices, decl, indexData, numIndices, material.c_str(), primitives.data(), (uint32_t)primitives.size());
}
delete [] indexData;
delete [] vertexData;
now = bx::getHPCounter();
convertElapsed += now;
const int64_t end = _writer->seek();
const uint32_t dataSize = uint32_t(end-begin);
CS_PRINT("size: %u\n", dataSize);
CS_PRINT("parse %f [s]\ntri reorder %f [s]\nconvert %f [s]\n# %d, g %d, p %d, v %d, i %d\n"
, double(parseElapsed)/bx::getHPFrequency()
, double(triReorderElapsed)/bx::getHPFrequency()
, double(convertElapsed)/bx::getHPFrequency()
, num
, uint32_t(groups.size() )
, numPrimitives
, numVertices
, numIndices
);
return dataSize;
}
void Mesh::createCylinder(Number height, Number radius, int numSegments, bool capped) {
setMeshType(Mesh::TRI_MESH);
Number lastx = 0;
Number lastz = 0;
Number lastv = 0;
for (int i=0 ; i < numSegments+1; i++) {
Number v = ((Number)i)/((Number)numSegments);
Number pos = ((PI*2.0)/((Number)numSegments)) * i;
Number x = sin(pos) * radius;
Number z = cos(pos) * radius;
if(i > 0) {
Polygon *polygon = new Polygon();
polygon->addVertex(lastx,0,lastz,lastv,0);
polygon->addVertex(x,0,z, v, 0);
polygon->addVertex(x,height,z, v, 1);
addPolygon(polygon);
polygon = new Polygon();
polygon->addVertex(x,height,z, v, 1);
polygon->addVertex(lastx,height,lastz, lastv, 1);
polygon->addVertex(lastx,0,lastz,lastv,0);
addPolygon(polygon);
if(capped) {
polygon = new Polygon();
polygon->addVertex(lastx,height,lastz, 0.5+(lastz/radius*0.5), 0.5+(lastx/radius*0.5));
polygon->addVertex(x,height,z, 0.5+(z/radius*0.5), 0.5+(x/radius*0.5));
polygon->addVertex(0,height,0,0.5,0.5);
addPolygon(polygon);
polygon = new Polygon();
polygon->addVertex(lastx,0,lastz, 0.5+(lastz/radius*0.5), 0.5+(lastx/radius*0.5));
polygon->addVertex(0,0,0,0.5,0.5);
polygon->addVertex(x,0,z, 0.5+(z/radius*0.5), 0.5+(x/radius*0.5));
addPolygon(polygon);
}
}
lastx = x;
lastz = z;
lastv = v;
/*
Polygon *polygon = new Polygon();
polygon->addVertex(w,0,h, 1, 1);
polygon->addVertex(0,0,h, 1, 0);
polygon->addVertex(0,0,0,0,0);
polygon->addVertex(w,0,0,0,1);
addPolygon(polygon);
*/
}
for(int i=0; i < polygons.size(); i++) {
for(int j=0; j < polygons[i]->getVertexCount(); j++) {
// polygons[i]->getVertex(j)->x = polygons[i]->getVertex(j)->x - (radius/2.0f);
polygons[i]->getVertex(j)->y = polygons[i]->getVertex(j)->y - (height/2.0f);
// polygons[i]->getVertex(j)->z = polygons[i]->getVertex(j)->z - (radius/2.0f);
}
}
calculateNormals();
calculateTangents();
arrayDirtyMap[RenderDataArray::VERTEX_DATA_ARRAY] = true;
arrayDirtyMap[RenderDataArray::COLOR_DATA_ARRAY] = true;
arrayDirtyMap[RenderDataArray::TEXCOORD_DATA_ARRAY] = true;
arrayDirtyMap[RenderDataArray::NORMAL_DATA_ARRAY] = true;
arrayDirtyMap[RenderDataArray::TANGENT_DATA_ARRAY] = true;
}
void Mesh::createTorus(Number radius, Number tubeRadius, int rSegments, int tSegments) {
setMeshType(Mesh::TRI_MESH);
Vector3 **grid = (Vector3 **) malloc(sizeof(Vector3*) * rSegments);
for (int i=0 ; i < rSegments; i++) {
grid[i] = (Vector3*) malloc(sizeof(Vector3) * tSegments);
}
for (int i=0 ; i < rSegments; i++) {
for (int j = 0; j < tSegments; ++j) {
Number u = ((Number)i) / rSegments * 2.0 * PI;
Number v = ((Number)j) / tSegments * 2.0 * PI;
grid[i][j] = Vector3((radius + tubeRadius*cos(v))*cos(u), tubeRadius*sin(v), (radius + tubeRadius*cos(v))*sin(u));
}
}
for (int i=0 ; i < rSegments; i++) {
for (int j = 0; j < tSegments; ++j) {
int ip = (i+1) % rSegments;
int jp = (j+1) % tSegments;
Vector3 a = grid[i ][j];
Vector3 b = grid[ip][j];
Vector3 c = grid[i ][jp];
Vector3 d = grid[ip][jp];
Vector2 uva = Vector2(((Number)i) / ((Number)rSegments), ((Number)j) / ((Number)tSegments));
Vector2 uvb = Vector2((((Number)i)+1.0) / ((Number)rSegments), ((Number)j) / ((Number)tSegments));
Vector2 uvc = Vector2(((Number)i) / ((Number)rSegments), (((Number)j)+1.0) / ((Number)tSegments));
Vector2 uvd = Vector2((((Number)i)+1.0) / ((Number)rSegments), (((Number)j)+1.0) / ((Number)tSegments));
Polygon *polygon = new Polygon();
polygon->addVertex(c.x, c.y, c.z, uvc.x ,uvc.y);
polygon->addVertex(b.x, b.y, b.z, uvb.x ,uvb.y);
polygon->addVertex(a.x, a.y, a.z, uva.x ,uva.y);
addPolygon(polygon);
polygon = new Polygon();
polygon->addVertex(b.x, b.y, b.z, uvb.x ,uvb.y);
polygon->addVertex(c.x, c.y, c.z, uvc.x ,uvc.y);
polygon->addVertex(d.x, d.y, d.z, uvd.x ,uvd.y);
addPolygon(polygon);
}
}
for (int i=0 ; i < rSegments; i++) {
free(grid[i]);
}
free(grid);
calculateNormals();
calculateTangents();
arrayDirtyMap[RenderDataArray::VERTEX_DATA_ARRAY] = true;
arrayDirtyMap[RenderDataArray::COLOR_DATA_ARRAY] = true;
arrayDirtyMap[RenderDataArray::TEXCOORD_DATA_ARRAY] = true;
arrayDirtyMap[RenderDataArray::NORMAL_DATA_ARRAY] = true;
arrayDirtyMap[RenderDataArray::TANGENT_DATA_ARRAY] = true;
}
void Mesh::createSphere(Number _radius, int _segmentsH, int _segmentsW) {
setMeshType(Mesh::TRI_MESH);
Vector3 **grid = (Vector3 **) malloc(sizeof(Vector3*) * (_segmentsH+1));
for (int i=0 ; i < _segmentsH+1; i++) {
grid[i] = (Vector3*) malloc(sizeof(Vector3) * _segmentsW+1);
}
for (int i = 0; i < _segmentsW; i++) {
grid[0][i] = Vector3(0,-_radius,0);
}
for (int j = 1; j < _segmentsH; j++) {
Number horangle = ((float)j) / ((float)_segmentsH) * PI;
Number z = -_radius * cos(horangle);
Number ringradius = _radius * sin(horangle);
for (int i = 0; i < _segmentsW; i++) {
Number verangle = 2.0 * ((float)i) / ((float)_segmentsW) * PI;
Number x = ringradius * sin(verangle);
Number y = ringradius * cos(verangle);
grid[j][i] = Vector3(y, z, x);
}
}
for (int i = 0; i < _segmentsW; i++) {
grid[_segmentsH][i] = Vector3(0,_radius, 0);
}
for (int j = 1; j <= _segmentsH; j++) {
for (int i = 0; i < _segmentsW; i++) {
Vector3 a = grid[j][i];
Vector3 b = grid[j][(i-1+_segmentsW) % _segmentsW];
Vector3 c = grid[j-1][(i-1+_segmentsW) % _segmentsW];
Vector3 d = grid[j-1][i];
int i2 = i;
if (i == 0) i2 = _segmentsW;
Number vab = ((float)j) / ((float)_segmentsH);
Number vcd = (((float)j)-1.0) / ((float)_segmentsH);
Number uad = ((float)i2) / ((float)_segmentsW);
Number ubc = (((float)i2)-1.0) / ((float)_segmentsW);
Vector2 uva = Vector2(uad,vab);
Vector2 uvb = Vector2(ubc,vab);
Vector2 uvc = Vector2(ubc,vcd);
Vector2 uvd = Vector2(uad,vcd);
if (j < _segmentsH) {
Polygon *polygon = new Polygon();
polygon->addVertex(c.x, c.y, c.z, uvc.x ,uvc.y);
polygon->addVertex(b.x, b.y, b.z, uvb.x ,uvb.y);
polygon->addVertex(a.x, a.y, a.z, uva.x ,uva.y);
addPolygon(polygon);
}
if (j > 1) {
Polygon *polygon = new Polygon();
polygon->addVertex(d.x, d.y, d.z, uvd.x ,uvd.y);
polygon->addVertex(c.x, c.y, c.z, uvc.x ,uvc.y);
polygon->addVertex(a.x, a.y, a.z, uva.x ,uva.y);
addPolygon(polygon);
}
}
}
calculateNormals();
calculateTangents();
arrayDirtyMap[RenderDataArray::VERTEX_DATA_ARRAY] = true;
arrayDirtyMap[RenderDataArray::COLOR_DATA_ARRAY] = true;
arrayDirtyMap[RenderDataArray::TEXCOORD_DATA_ARRAY] = true;
arrayDirtyMap[RenderDataArray::NORMAL_DATA_ARRAY] = true;
arrayDirtyMap[RenderDataArray::TANGENT_DATA_ARRAY] = true;
}
void Mesh::loadFromFile(OSFILE *inFile) {
unsigned int meshType;
OSBasics::read(&meshType, sizeof(unsigned int), 1, inFile);
setMeshType(meshType);
int verticesPerFace;
switch(meshType) {
case TRI_MESH:
verticesPerFace = 3;
break;
case QUAD_MESH:
verticesPerFace = 4;
break;
default:
verticesPerFace = 1;
break;
}
unsigned int numFaces;
OSBasics::read(&numFaces, sizeof(unsigned int), 1, inFile);
Vector3_struct pos;
Vector3_struct nor;
Vector4_struct col;
Vector2_struct tex;
for(int i=0; i < numFaces; i++) {
Polygon *poly = new Polygon();
for(int j=0; j < verticesPerFace; j++) {
OSBasics::read(&pos, sizeof(Vector3_struct), 1, inFile);
OSBasics::read(&nor, sizeof(Vector3_struct), 1, inFile);
OSBasics::read(&col, sizeof(Vector4_struct), 1, inFile);
OSBasics::read(&tex, sizeof(Vector2_struct), 1, inFile);
Vertex *vertex = new Vertex(pos.x, pos.y, pos.z);
vertex->setNormal(nor.x,nor.y, nor.z);
vertex->restNormal.set(nor.x,nor.y, nor.z);
vertex->vertexColor.setColor(col.x,col.y, col.z, col.w);
vertex->setTexCoord(tex.x, tex.y);
unsigned int numBoneWeights;
OSBasics::read(&numBoneWeights, sizeof(unsigned int), 1, inFile);
for(int b=0; b < numBoneWeights; b++) {
float weight;
unsigned int boneID;
OSBasics::read(&boneID, sizeof(unsigned int), 1, inFile);
OSBasics::read(&weight, sizeof(float), 1, inFile);
vertex->addBoneAssignment(boneID, weight);
}
Number totalWeight = 0;
for(int m=0; m < vertex->getNumBoneAssignments(); m++) {
BoneAssignment *ba = vertex->getBoneAssignment(m);
totalWeight += ba->weight;
}
for(int m=0; m < vertex->getNumBoneAssignments(); m++) {
BoneAssignment *ba = vertex->getBoneAssignment(m);
ba->weight = ba->weight/totalWeight;
}
poly->addVertex(vertex);
}
addPolygon(poly);
}
calculateTangents();
arrayDirtyMap[RenderDataArray::VERTEX_DATA_ARRAY] = true;
arrayDirtyMap[RenderDataArray::COLOR_DATA_ARRAY] = true;
arrayDirtyMap[RenderDataArray::TEXCOORD_DATA_ARRAY] = true;
arrayDirtyMap[RenderDataArray::NORMAL_DATA_ARRAY] = true;
arrayDirtyMap[RenderDataArray::TANGENT_DATA_ARRAY] = true;
}
