//Mesh
void RenderObject::setMesh(std::string name)
{
GLMeshData* meshData = Singleton<MeshDatabase>::Instance()->loadMesh(name);
if(meshData != 0)
{
GLMesh* newMesh = new GLMesh();
newMesh->initialize(meshData);
newMesh->setName(name); //By default GLMesh given same name as GLMeshData
this->mesh = newMesh;
}
}
static void
createFVarPatches(OpenSubdiv::Far::TopologyRefiner const & refiner,
OpenSubdiv::Far::PatchTable const & patchTable,
std::vector<Vertex> const & fvarBuffer) {
assert(not fvarBuffer.empty());
static int channel = 0;
if (g_FarDrawFVarVerts) {
GLMesh::Options options;
options.vertColorMode = GLMesh::VERTCOLOR_BY_LEVEL;
fvarVerts.InitializeFVar(options, refiner, &patchTable, channel, 0, (float *)(&fvarBuffer[0]));
}
if (g_FarDrawFVarPatches) {
// generate uniform tessellation for patches
int tessFactor = g_FarDrawFVarPatchTess,
npatches = patchTable.GetNumPatchesTotal(),
nvertsperpatch = (tessFactor) * (tessFactor),
nverts = npatches * nvertsperpatch;
float * uvs = (float *)alloca(tessFactor);
for (int i=0; i<tessFactor; ++i) {
uvs[i] = (float)i/(tessFactor-1.0f);
}
std::vector<Vertex> verts(nverts);
memset(&verts[0], 0, verts.size()*sizeof(Vertex));
/*
OpenSubdiv::Far::PatchTable::PatchHandle handle;
Vertex * vert = &verts[0];
for (int patch=0; patch<npatches; ++patch) {
for (int i=0; i<tessFactor; ++i) {
for (int j=0; j<tessFactor; ++j, ++vert) {
handle.patchIndex = patch;
// To be replaced with EvaluateBasis() for the appropriate channel:
//patchTable.EvaluateFaceVarying(channel, handle, uvs[i], uvs[j], fvarBuffer, *vert);
}
}
}
*/
GLMesh::Options options;
options.edgeColorMode = GLMesh::EDGECOLOR_BY_PATCHTYPE;
fvarWire.InitializeFVar(options, refiner, &patchTable, channel, tessFactor, (float *)(&verts[0]));
}
}
bool GLInputVertexAttribute::Disable()
{
if (isCreateOK())
{
bool result = false;
GLMesh* mesh = (dynamic_cast<GLRenderable*>(this->getRenderable()))->getMesh();
glDisableVertexAttribArray(m_IAHandle);
if (mesh->isUseCPUBuffer() == false)
{
// Unbind VBO
glBindBuffer(GL_ARRAY_BUFFER, 0);
}
result = true;
m_bIsEnableOK = !result;
}
return !isEnableOK();
}
bool GLInputVertexAttribute::Enable()
{
if (isCreateOK())
{
bool result = false;
GLSLShader* shader = (dynamic_cast<GLRenderable*>(this->getRenderable()))->getShader();
GLMesh* mesh = (dynamic_cast<GLRenderable*>(this->getRenderable()))->getMesh();
if (shader->isCreateOK() && shader->isEnableOK() && mesh != NULL)
{
m_IAHandle = glGetAttribLocation(shader->getProgramHandle(), m_InputVertexAttributeName.c_str());
LOGD("call glGetAttribLocation(%d, %s), get the input attribute handle is %d", shader->getProgramHandle(), m_InputVertexAttributeName.c_str(), m_IAHandle);
if (m_IAHandle != -1)
{
glEnableVertexAttribArray(m_IAHandle);
if (mesh->isUseCPUBuffer())
{
// use cpu memory's vertex buffer pointer
glVertexAttribPointer(m_IAHandle, m_IAElementNum, m_IAType, m_IANormalized, m_IAStride, (BYTE*)(mesh->getVertexDataPointer()) + m_IAOffset);
}
else
{
// use gpu memory's vertex buffer
glBindBuffer(GL_ARRAY_BUFFER, mesh->getVBOHandle());
glVertexAttribPointer(m_IAHandle, m_IAElementNum, m_IAType, m_IANormalized, m_IAStride, (BYTE*)m_IAOffset);
}
result = true;
}
else
{
LOGE("glGetAttribLocation return -1");
result = false;
}
}
m_bIsEnableOK = result;
}
return isEnableOK();
}
void GLShader::Update(GLMesh& mesh, const GLCamera& camera)
{
glm::mat4 model = mesh.GetTransform().GetModel();
glm::mat4 projView = camera.GetViewProjectionMatrix();
glm::vec3 viewPos = camera.GetPos();
glUniformMatrix4fv(m_uniforms[TRANSFROM_U], 1, GL_FALSE, glm::value_ptr(model));
glUniformMatrix4fv(m_uniforms[PROJVIEW_U], 1, GL_FALSE, glm::value_ptr(projView));
glUniform3fv(m_uniforms[VIEWPOS_U], 1, glm::value_ptr(viewPos));
GLint matAmbientLoc = glGetUniformLocation(m_program, "material.ambient");
GLint matDiffuseLoc = glGetUniformLocation(m_program, "material.diffuse");
GLint matSpecularLoc = glGetUniformLocation(m_program, "material.specular");
GLint matShineLoc = glGetUniformLocation(m_program, "material.shininess");
glUniform3fv(matAmbientLoc, 1, glm::value_ptr(mesh.GetMaterial().ambient));
glUniform3fv(matDiffuseLoc, 1, glm::value_ptr(mesh.GetMaterial().diffuse));
glUniform3fv(matSpecularLoc, 1, glm::value_ptr(mesh.GetMaterial().specular));
glUniform1f(matShineLoc, mesh.GetMaterial().shininess);
mesh.GetMaterial().texture->Bind(0);
glUniform1i(this->GetUnifromLocation("diffuseTexture"), 0);
}
//------------------------------------------------------------------------------
static void
display() {
g_hud.GetFrameBuffer()->Bind();
Stopwatch s;
s.Start();
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glViewport(0, 0, g_width, g_height);
// prepare view matrix
double aspect = g_width/(double)g_height;
identity(g_transformData.ModelViewMatrix);
translate(g_transformData.ModelViewMatrix, -g_pan[0], -g_pan[1], -g_dolly);
rotate(g_transformData.ModelViewMatrix, g_rotate[1], 1, 0, 0);
rotate(g_transformData.ModelViewMatrix, g_rotate[0], 0, 1, 0);
rotate(g_transformData.ModelViewMatrix, -90, 1, 0, 0);
translate(g_transformData.ModelViewMatrix,
-g_center[0], -g_center[1], -g_center[2]);
perspective(g_transformData.ProjectionMatrix,
45.0f, (float)aspect, 0.1f, 500.0f);
multMatrix(g_transformData.ModelViewProjectionMatrix,
g_transformData.ModelViewMatrix,
g_transformData.ProjectionMatrix);
glEnable(GL_DEPTH_TEST);
s.Stop();
float drawCpuTime = float(s.GetElapsed() * 1000.0f);
glBindVertexArray(0);
glUseProgram(0);
// primitive counting
glBeginQuery(GL_PRIMITIVES_GENERATED, g_queries[0]);
#if defined(GL_VERSION_3_3)
glBeginQuery(GL_TIME_ELAPSED, g_queries[1]);
#endif
// Update and bind transform state ---------------------
if (! g_transformUB) {
glGenBuffers(1, &g_transformUB);
glBindBuffer(GL_UNIFORM_BUFFER, g_transformUB);
glBufferData(GL_UNIFORM_BUFFER, sizeof(g_transformData), NULL, GL_STATIC_DRAW);
};
glBindBuffer(GL_UNIFORM_BUFFER, g_transformUB);
glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(g_transformData), &g_transformData);
glBindBuffer(GL_UNIFORM_BUFFER, 0);
// Update and bind lighting state ----------------------
struct Lighting {
struct Light {
float position[4];
float ambient[4];
float diffuse[4];
float specular[4];
} lightSource[2];
} lightingData = {
{{ { 0.5, 0.2f, 1.0f, 0.0f },
{ 0.1f, 0.1f, 0.1f, 1.0f },
{ 0.7f, 0.7f, 0.7f, 1.0f },
{ 0.8f, 0.8f, 0.8f, 1.0f } },
{ { -0.8f, 0.4f, -1.0f, 0.0f },
{ 0.0f, 0.0f, 0.0f, 1.0f },
{ 0.5f, 0.5f, 0.5f, 1.0f },
{ 0.8f, 0.8f, 0.8f, 1.0f } }}
};
if (! g_lightingUB) {
glGenBuffers(1, &g_lightingUB);
glBindBuffer(GL_UNIFORM_BUFFER, g_lightingUB);
glBufferData(GL_UNIFORM_BUFFER, sizeof(lightingData), NULL, GL_STATIC_DRAW);
};
glBindBuffer(GL_UNIFORM_BUFFER, g_lightingUB);
glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(lightingData), &lightingData);
glBindBuffer(GL_UNIFORM_BUFFER, 0);
// Draw stuff ------------------------------------------
// control cage edges & verts
if (g_drawCageVertices) {
g_base_glmesh.Draw(GLMesh::COMP_VERT, g_transformUB, g_lightingUB);
}
if (g_drawCageEdges) {
g_base_glmesh.Draw(GLMesh::COMP_EDGE, g_transformUB, g_lightingUB);
}
// Hbr mesh
if (g_HbrDrawMode!=kDRAW_NONE) {
GLMesh::Component comp=GLMesh::COMP_VERT;
switch (g_HbrDrawMode) {
case kDRAW_VERTICES : comp=GLMesh::COMP_VERT; break;
case kDRAW_WIREFRAME : comp=GLMesh::COMP_EDGE; break;
case kDRAW_FACES : comp=GLMesh::COMP_FACE; break;
default:
assert(0);
}
g_hbr_glmesh.Draw(comp, g_transformUB, g_lightingUB);
}
// Vtr mesh
if (g_VtrDrawMode!=kDRAW_NONE) {
GLMesh::Component comp=GLMesh::COMP_VERT;
switch (g_VtrDrawMode) {
case kDRAW_VERTICES : comp=GLMesh::COMP_VERT; break;
case kDRAW_WIREFRAME : comp=GLMesh::COMP_EDGE; break;
case kDRAW_FACES : comp=GLMesh::COMP_FACE; break;
default:
assert(0);
}
g_vtr_glmesh.Draw(comp, g_transformUB, g_lightingUB);
}
assert(g_font);
g_font->Draw(g_transformUB);
// -----------------------------------------------------
g_hud.GetFrameBuffer()->ApplyImageShader();
GLuint numPrimsGenerated = 0;
GLuint timeElapsed = 0;
glGetQueryObjectuiv(g_queries[0], GL_QUERY_RESULT, &numPrimsGenerated);
#if defined(GL_VERSION_3_3)
glGetQueryObjectuiv(g_queries[1], GL_QUERY_RESULT, &timeElapsed);
#endif
float drawGpuTime = timeElapsed / 1000.0f / 1000.0f;
if (g_hud.IsVisible()) {
g_fpsTimer.Stop();
double fps = 1.0/g_fpsTimer.GetElapsed();
g_fpsTimer.Start();
{ // display selectde patch info
static char const * patchTypes[11] = { "undefined", "points", "lines",
"quads", "tris", "loop", "regular", "boundary", "corner",
"gregory", "gregory-boundary" };
if (g_Adaptive and g_currentPatch) {
g_hud.DrawString(g_width/2-100, 100, "Current Patch : %d/%d (%s - %d CVs)",
g_currentPatch-1, g_numPatches,
patchTypes[g_currentPatchDesc.GetType()],
g_currentPatchDesc.GetNumControlVertices());
}
}
static char const * schemeNames[3] = { "BILINEAR", "CATMARK", "LOOP" };
g_hud.DrawString(10, -140, "Primitives : %d", numPrimsGenerated);
g_hud.DrawString(10, -120, "Scheme : %s", schemeNames[ g_shapes[g_currentShape].scheme ]);
g_hud.DrawString(10, -100, "GPU Kernel : %.3f ms", g_gpuTime);
g_hud.DrawString(10, -80, "CPU Kernel : %.3f ms", g_cpuTime);
g_hud.DrawString(10, -60, "GPU Draw : %.3f ms", drawGpuTime);
g_hud.DrawString(10, -40, "CPU Draw : %.3f ms", drawCpuTime);
g_hud.DrawString(10, -20, "FPS : %3.1f", fps);
g_hud.Flush();
}
glFinish();
//checkGLErrors("display leave");
}
//------------------------------------------------------------------------------
static void
createVtrMesh(Shape * shape, int maxlevel) {
Stopwatch s;
s.Start();
// create Vtr mesh (topology)
OpenSubdiv::Sdc::Type sdctype = GetSdcType(*shape);
OpenSubdiv::Sdc::Options sdcoptions = GetSdcOptions(*shape);
OpenSubdiv::Far::TopologyRefiner * refiner =
OpenSubdiv::Far::TopologyRefinerFactory<Shape>::Create(sdctype, sdcoptions, *shape);
OpenSubdiv::Far::PatchTables * patchTables = 0;
if (g_Adaptive) {
refiner->RefineAdaptive(maxlevel, /*fullTopology*/true);
patchTables = OpenSubdiv::Far::PatchTablesFactory::Create(*refiner);
g_numPatches = patchTables->GetNumPatches();
} else {
refiner->RefineUniform(maxlevel, /*fullTopology*/true);
}
s.Stop();
// create vertex primvar data buffer
std::vector<Vertex> vertexBuffer(refiner->GetNumVerticesTotal());
Vertex * verts = &vertexBuffer[0];
//printf("Vtr time: %f ms (topology)\n", float(s.GetElapsed())*1000.0f);
// copy coarse vertices positions
int ncoarseverts = shape->GetNumVertices();
for (int i=0; i<ncoarseverts; ++i) {
float * ptr = &shape->verts[i*3];
verts[i].SetPosition(ptr[0], ptr[1], ptr[2]);
}
//#define no_stencils
#ifdef no_stencils
{
s.Start();
// populate buffer with Vtr interpolated vertex data
refiner->Interpolate(verts, verts + ncoarseverts);
s.Stop();
//printf(" %f ms (interpolate)\n", float(s.GetElapsed())*1000.0f);
//printf(" %f ms (total)\n", float(s.GetTotalElapsed())*1000.0f);
}
#else
{
OpenSubdiv::Far::StencilTablesFactory::Options options;
options.generateOffsets=true;
options.generateAllLevels=true;
options.sortBySize=false;
OpenSubdiv::Far::StencilTables const * stencilTables =
OpenSubdiv::Far::StencilTablesFactory::Create(*refiner, options);
stencilTables->UpdateValues(verts, verts + ncoarseverts);
}
#endif
if (g_VtrDrawVertIDs) {
createVertNumbers(*refiner, vertexBuffer);
}
if (g_VtrDrawFaceIDs) {
createFaceNumbers(*refiner, vertexBuffer);
}
if (g_VtrDrawPtexIDs and patchTables) {
createPtexNumbers(*patchTables, vertexBuffer);
}
if (g_Adaptive and patchTables) {
createPatchNumbers(*patchTables, vertexBuffer);
}
createEdgeNumbers(*refiner, vertexBuffer, g_VtrDrawEdgeIDs!=0, g_VtrDrawEdgeSharpness!=0);
GLMesh::Options options;
options.vertColorMode=g_Adaptive ? GLMesh::VERTCOLOR_BY_LEVEL : GLMesh::VERTCOLOR_BY_SHARPNESS;
options.edgeColorMode=g_Adaptive ? GLMesh::EDGECOLOR_BY_PATCHTYPE : GLMesh::EDGECOLOR_BY_SHARPNESS;
options.faceColorMode=g_Adaptive ? GLMesh::FACECOLOR_BY_PATCHTYPE :GLMesh::FACECOLOR_SOLID;
if (g_Adaptive) {
g_vtr_glmesh.Initialize(options, *refiner, patchTables, (float *)&verts[0]);
g_vtr_glmesh.SetDiffuseColor(1.0f, 1.0f, 1.0f, 1.0f);
} else {
g_vtr_glmesh.Initialize(options, *refiner, patchTables, (float *)&verts[0]);
g_vtr_glmesh.SetDiffuseColor(0.75f, 0.9f, 1.0f, 1.0f);
}
//setFaceColors(*refiner);
g_vtr_glmesh.InitializeDeviceBuffers();
delete refiner;
delete patchTables;
}
//------------------------------------------------------------------------------
static void
createHbrMesh(Shape * shape, int maxlevel) {
Stopwatch s;
s.Start();
// create Hbr mesh using functions from hbr_utils
Hmesh * hmesh = createMesh<Vertex>(shape->scheme, /*fvarwidth*/ 0);
createVerticesWithPositions<Vertex>(shape, hmesh);
createTopology<Vertex>(shape, hmesh, shape->scheme);
s.Stop();
std::vector<Hface const *> coarseFaces, // list of Hbr coarse faces
refinedFaces; // list of Hbr faces refined at maxlevel
int nfaces = hmesh->GetNumFaces();
{ // create control cage GL mesh
coarseFaces.resize(nfaces);
for (int i=0; i<nfaces; ++i) {
coarseFaces[i] = hmesh->GetFace(i);
}
GLMesh::Options coarseOptions;
coarseOptions.vertColorMode=GLMesh::VERTCOLOR_BY_SHARPNESS;
coarseOptions.edgeColorMode=GLMesh::EDGECOLOR_BY_SHARPNESS;
coarseOptions.faceColorMode=GLMesh::FACECOLOR_SOLID;
g_base_glmesh.Initialize(coarseOptions, coarseFaces);
g_base_glmesh.InitializeDeviceBuffers();
}
{ // create maxlevel refined GL mesh
s.Start();
OpenSubdiv::Far::PatchTables const * patchTables = 0;
if (g_Adaptive) {
int maxvalence = RefineAdaptive(*hmesh, maxlevel, refinedFaces);
patchTables = CreatePatchTables(*hmesh, maxvalence);
patchTables->GetNumPatches();
delete patchTables;
} else {
RefineUniform(*hmesh, maxlevel, refinedFaces);
}
s.Stop();
//printf("Hbr time: %f ms\n", float(s.GetElapsed())*1000.0f);
if (g_HbrDrawVertIDs) {
createVertNumbers(refinedFaces);
}
// Hbr is a half-edge rep, so edges do not have unique IDs that
// can be displayed
if (g_HbrDrawEdgeSharpness) {
createEdgeNumbers(refinedFaces);
}
if (g_HbrDrawFaceIDs) {
createFaceNumbers(refinedFaces, /*ptex*/ false);
}
if (g_HbrDrawPtexIDs) {
createFaceNumbers(refinedFaces, /*ptex*/ true);
}
GLMesh::Options refinedOptions;
refinedOptions.vertColorMode=GLMesh::VERTCOLOR_BY_SHARPNESS;
refinedOptions.edgeColorMode=GLMesh::EDGECOLOR_BY_SHARPNESS;
refinedOptions.faceColorMode=GLMesh::FACECOLOR_SOLID;
g_hbr_glmesh.Initialize(refinedOptions, refinedFaces);
g_hbr_glmesh.SetDiffuseColor(1.0f,0.75f,0.9f, 1.0f);
}
g_hbr_glmesh.InitializeDeviceBuffers();
delete hmesh;
}
//------------------------------------------------------------------------------
static void
createFarGLMesh(Shape * shape, int maxlevel) {
Stopwatch s;
s.Start();
using namespace OpenSubdiv;
// create Far mesh (topology)
Sdc::SchemeType sdctype = GetSdcType(*shape);
Sdc::Options sdcoptions = GetSdcOptions(*shape);
sdcoptions.SetFVarLinearInterpolation(g_fvarInterpolation);
Far::TopologyRefiner * refiner =
Far::TopologyRefinerFactory<Shape>::Create(*shape,
Far::TopologyRefinerFactory<Shape>::Options(sdctype, sdcoptions));
if (g_Adaptive) {
Far::TopologyRefiner::AdaptiveOptions options(maxlevel);
options.useSingleCreasePatch = false;
refiner->RefineAdaptive(options);
} else {
Far::TopologyRefiner::UniformOptions options(maxlevel);
options.fullTopologyInLastLevel = true;
refiner->RefineUniform(options);
}
int numTotalVerts = refiner->GetNumVerticesTotal();
//
// Patch table
//
std::vector<Vertex> fvarBuffer;
Far::PatchTable * patchTable = 0;
bool createFVarWire = g_FarDrawFVarPatches or g_FarDrawFVarVerts;
if (g_Adaptive) {
Far::PatchTableFactory::Options options;
options.generateFVarTables = createFVarWire;
options.shareEndCapPatchPoints = false;
patchTable =
Far::PatchTableFactory::Create(*refiner, options);
// increase vertex buffer for the additional local points
if (patchTable->GetLocalPointStencilTable()) {
numTotalVerts += patchTable->GetLocalPointStencilTable()->GetNumStencils();
}
g_numPatches = patchTable->GetNumPatchesTotal();
g_maxValence = patchTable->GetMaxValence();
if (createFVarWire) {
// interpolate fvar values
int channel = 0;
// XXXX should use a (u,v) vertex class
fvarBuffer.resize(refiner->GetNumFVarValuesTotal(channel), 0);
Vertex * values = &fvarBuffer[0];
int nCoarseValues = refiner->GetLevel(0).GetNumFVarValues(channel);
for (int i=0; i<nCoarseValues; ++i) {
float const * ptr = &shape->uvs[i*2];
values[i].SetPosition(ptr[0], ptr[1], 0.0f);
}
int lastLevel = refiner->GetMaxLevel();
Vertex * src = values;
for (int level = 1; level <= lastLevel; ++level) {
Vertex * dst = src + refiner->GetLevel(level-1).GetNumFVarValues(channel);
Far::PrimvarRefiner(*refiner).InterpolateFaceVarying(level, src, dst, channel);
src = dst;
}
}
}
//
// interpolate vertices
//
// create vertex primvar data buffer
std::vector<Vertex> vertexBuffer(numTotalVerts);
Vertex * verts = &vertexBuffer[0];
// copy coarse vertices positions
int ncoarseverts = shape->GetNumVertices();
for (int i=0; i<ncoarseverts; ++i) {
float * ptr = &shape->verts[i*3];
verts[i].SetPosition(ptr[0], ptr[1], ptr[2]);
}
s.Start();
if (g_useStencils) {
//
// Stencil interpolation
//
Far::StencilTable const * stencilTable = 0;
Far::StencilTableFactory::Options options;
options.generateOffsets=true;
options.generateIntermediateLevels=true;
stencilTable = Far::StencilTableFactory::Create(*refiner, options);
// append local point stencils if needed
if (patchTable and patchTable->GetLocalPointStencilTable()) {
if (Far::StencilTable const * stencilTableWithLocalPoints =
Far::StencilTableFactory::AppendLocalPointStencilTable(
*refiner, stencilTable,
patchTable->GetLocalPointStencilTable())) {
delete stencilTable;
stencilTable = stencilTableWithLocalPoints;
}
}
//
// apply stencils
//
stencilTable->UpdateValues(verts, verts + ncoarseverts);
delete stencilTable;
} else {
//
// TopologyRefiner interpolation
//
// populate buffer with Far interpolated vertex data
int lastLevel = refiner->GetMaxLevel();
Vertex * src = verts;
for (int level = 1; level <= lastLevel; ++level) {
Vertex * dst = src + refiner->GetLevel(level-1).GetNumVertices();
Far::PrimvarRefiner(*refiner).Interpolate(level, src, dst);
src = dst;
}
//printf(" %f ms (interpolate)\n", float(s.GetElapsed())*1000.0f);
//printf(" %f ms (total)\n", float(s.GetTotalElapsed())*1000.0f);
// TODO: endpatch basis conversion comes here
}
s.Stop();
//
// Misc display
//
//printf("Far time: %f ms (topology)\n", float(s.GetElapsed())*1000.0f);
if (g_FarDrawVertIDs) {
createVertNumbers(*refiner, vertexBuffer);
}
if (g_FarDrawFaceIDs) {
createFaceNumbers(*refiner, vertexBuffer);
}
if (g_FarDrawPtexIDs and patchTable) {
createPtexNumbers(*patchTable, vertexBuffer);
}
if (g_Adaptive) {
createPatchNumbers(*patchTable, vertexBuffer);
}
if (g_Adaptive and g_FarDrawGregogyBasis) {
createGregoryBasis(*patchTable, vertexBuffer);
}
if (g_Adaptive and createFVarWire) {
createFVarPatches(*refiner, *patchTable, fvarBuffer);
createFVarPatchNumbers(*patchTable, fvarBuffer);
}
createEdgeNumbers(*refiner, vertexBuffer, g_FarDrawEdgeIDs!=0, g_FarDrawEdgeSharpness!=0);
GLMesh::Options options;
options.vertColorMode=g_Adaptive ? GLMesh::VERTCOLOR_BY_LEVEL : GLMesh::VERTCOLOR_BY_SHARPNESS;
options.edgeColorMode=g_Adaptive ? GLMesh::EDGECOLOR_BY_PATCHTYPE : GLMesh::EDGECOLOR_BY_SHARPNESS;
options.faceColorMode=g_Adaptive ? GLMesh::FACECOLOR_BY_PATCHTYPE :GLMesh::FACECOLOR_SOLID;
g_far_glmesh.Initialize(options, *refiner, patchTable, (float *)&verts[0]);
if (g_Adaptive) {
g_far_glmesh.SetDiffuseColor(1.0f, 1.0f, 1.0f, 1.0f);
} else {
g_far_glmesh.SetDiffuseColor(0.75f, 0.9f, 1.0f, 1.0f);
}
//setFaceColors(*refiner);
g_far_glmesh.InitializeDeviceBuffers();
// save coarse topology (used for control mesh display)
g_controlMeshDisplay.SetTopology(refiner->GetLevel(0));
// save coarse points in a GPU buffer (used for control mesh display)
if (not g_controlMeshDisplayVBO) {
glGenBuffers(1, &g_controlMeshDisplayVBO);
}
glBindBuffer(GL_ARRAY_BUFFER, g_controlMeshDisplayVBO);
glBufferData(GL_ARRAY_BUFFER,
3*sizeof(float)*vertexBuffer.size(), (GLfloat*)&vertexBuffer[0],
GL_STATIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, 0);
// compute model bounds
float min[3] = { FLT_MAX, FLT_MAX, FLT_MAX};
float max[3] = {-FLT_MAX, -FLT_MAX, -FLT_MAX};
for (size_t i=0; i <vertexBuffer.size(); ++i) {
for(int j=0; j<3; ++j) {
float v = vertexBuffer[i].GetPos()[j];
min[j] = std::min(min[j], v);
max[j] = std::max(max[j], v);
}
}
for (int j=0; j<3; ++j) {
g_center[j] = (min[j] + max[j]) * 0.5f;
g_size += (max[j]-min[j])*(max[j]-min[j]);
}
g_size = sqrtf(g_size);
delete refiner;
delete patchTable;
}
static void
createGregoryBasis(OpenSubdiv::Far::PatchTable const & patchTable,
std::vector<Vertex> const & vertexBuffer) {
typedef OpenSubdiv::Far::PatchDescriptor PatchDescriptor;
int npatches = 0;
int patchArray = 0;
for (int array=0; array<(int)patchTable.GetNumPatchArrays(); ++array) {
if (patchTable.GetPatchArrayDescriptor(array).GetType()==
PatchDescriptor::GREGORY_BASIS) {
npatches = patchTable.GetNumPatches(array);
patchArray = array;
break;
}
}
int nedges = npatches * 20;
std::vector<int> vertsperedge(nedges), edgeindices(nedges*2);
for (int patch=0; patch<npatches; ++patch) {
static int basisedges[40] = { 0, 1, 0, 2, 1, 3, 2, 4,
5, 6, 5, 7, 6, 8, 7, 9,
10, 11, 10, 12, 11, 13, 12, 14,
15, 16, 15, 17, 16, 18, 17, 19,
1, 7, 6, 12, 11, 17, 16, 2 };
int offset = patch * 20,
* vpe = &vertsperedge[offset],
* indices = &edgeindices[patch * 40];
OpenSubdiv::Far::ConstIndexArray const cvs =
patchTable.GetPatchVertices(patchArray, patch);
for (int i=0; i<20; ++i) {
vpe[i] = 2;
indices[i*2] = cvs[basisedges[i*2]];
indices[i*2+1] = cvs[basisedges[i*2+1]];
}
//Vertex const * verts = &edgeverts[offset];
static char buf[16];
for (int i=0; i<4; ++i) {
int vid = patch * 20 + i * 5;
const float *P = vertexBuffer[cvs[i*5+0]].GetPos();
const float *Ep = vertexBuffer[cvs[i*5+1]].GetPos();
const float *Em = vertexBuffer[cvs[i*5+2]].GetPos();
const float *Fp = vertexBuffer[cvs[i*5+3]].GetPos();
const float *Fm = vertexBuffer[cvs[i*5+4]].GetPos();
snprintf(buf, 16, " P%d (%d)", i, vid);
g_font->Print3D(P, buf, 3);
snprintf(buf, 16, " Ep%d (%d)", i, vid+1);
g_font->Print3D(Ep, buf, 3);
snprintf(buf, 16, " Em%d (%d)", i, vid+2);
g_font->Print3D(Em, buf, 3);
snprintf(buf, 16, " Fp%d (%d)", i, vid+3);
g_font->Print3D(Fp, buf, 3);
snprintf(buf, 16, " Fm%d (%d)", i, vid+4);
g_font->Print3D(Fm, buf, 3);
}
}
GLMesh::Options options;
gregoryWire.Initialize(options, (int)vertexBuffer.size(), (int)vertsperedge.size(),
&vertsperedge[0], &edgeindices[0], (float const *)&vertexBuffer[0]);
}
/**
This static method reads an obj file, whose name is sent in as a parameter, and returns a pointer to a GLMesh object that it created based on the file information.
This method throws errors if the file doesn't exist, is not an obj file, etc.
*/
GLMesh* OBJReader::loadOBJFile(const char* fileName){
if (fileName == NULL)
throwError("fileName is NULL.");
// Logger::out()<< "Loading mesh: " << fileName <<std::endl;
FILE* f = fopen(fileName, "r");
if (f == NULL)
throwError("Cannot open file \'%s\'.", fileName);
GLMesh* result = new GLMesh();
result->setOriginalFilename( fileName );
//have a temporary buffer used to read the file line by line...
char buffer[200];
//and this is an array of texture coordinates - the Point3d is a simple data type so I can use the DynamicArray
DynamicArray<Point3d> texCoordinates;
//this variable will keep getting populated with face information
GLIndexedPoly temporaryPolygon;
//this is where it happens.
while (!feof(f)){
//get a line from the file...
fgets(buffer, 200, f);
//see what line it is...
int lineType = getLineType(buffer);
if (lineType == VERTEX_INFO){
//we need to read in the three coordinates - skip over the v
Point3d vertexCoords = readCoordinates(buffer + 1);
result->addVertex(vertexCoords);
}
if (lineType == TEXTURE_INFO){
Point3d texCoords = readCoordinates(buffer + 2);
texCoordinates.push_back(texCoords);
}
if (lineType == FACE_INFO){
temporaryPolygon.indexes.clear();
int vIndex, tIndex;
int flag;
char* tmpPointer = buffer+1;
while (tmpPointer = getNextIndex(tmpPointer, vIndex, tIndex, flag)){
temporaryPolygon.indexes.push_back(vIndex-1);
if (flag & READ_TEXTCOORD_INDEX){
if (tIndex<0)
result->setVertexTexCoordinates(vIndex, texCoordinates[texCoordinates.size()+tIndex]);
else
result->setVertexTexCoordinates(vIndex, texCoordinates[tIndex]);
}
}
if (temporaryPolygon.indexes.size() == 0)
tprintf("Found a polygon with zero vertices.\n");
else
result->addPoly(temporaryPolygon);
}
}
fclose(f);
return result;
}
