void
PassOptix::addScene (const std::string &sceneName)
{
if (m_SceneVector.end() == std::find (m_SceneVector.begin(), m_SceneVector.end(), sceneName)) {
m_SceneVector.push_back (sceneName);
std::set<std::string> *materialNames = new std::set<std::string>;
RENDERMANAGER->getScene(sceneName)->getMaterialNames(materialNames);
std::set<std::string>::iterator iter;
iter = materialNames->begin();
for ( ; iter != materialNames->end(); ++iter) {
if (m_MaterialMap.count((*iter)) == 0)
m_MaterialMap[(*iter)] = MaterialID(DEFAULTMATERIALLIBNAME, (*iter));
}
delete materialNames;
IScene *sc = RENDERMANAGER->getScene(sceneName);
sc->compile();
/* std::vector<SceneObject *> objs = sc->getAllObjects();
for (unsigned int i = 0; i < objs.size(); ++i) {
IRenderable &r = objs[i]->getRenderable();
VertexData &v = r.getVertexData();
// just to make sure we get this data compiled
//r.getVertexData().compile();
// which attrs should we send to optix?
unsigned int id = v.getBufferID(0);
// clear OpenGL Errors so far; otherwise Optix won't work
int e = glGetError();
optix::Buffer buffers[VertexData::MaxAttribs];
try {
for (unsigned int b = 0; b < VertexData::MaxAttribs; ++b) {
if (v.getBufferID(b)) {
buffers[b] = o_Context->createBufferFromGLBO(RT_BUFFER_INPUT,v.getBufferID(b));
buffers[b]->setFormat(RT_FORMAT_FLOAT4);
buffers[b]->setSize(v.getDataOf(0).size());
}
}
}
catch ( optix::Exception& e ) {
NAU_THROW("Optix Error: Adding scene %s to pass %s (creating buffers from VBOs) [%s]",
sc->getName().c_str(), m_Name.c_str(),e.getErrorString().c_str());
}
std::vector<IMaterialGroup *> mg = r.getMaterialGroups();
for (unsigned int g = 0; g < mg.size(); ++g) {
if (mg[g]->getNumberOfPrimitives() > 0) {
try {
optix::Geometry geom = o_Context->createGeometry();
geom->setPrimitiveCount(mg[g]->getNumberOfPrimitives());
geom->setBoundingBoxProgram(o_BoundingBoxProgram);
geom->setIntersectionProgram(o_GeometryIntersectionProgram);
geom["vertex_buffer"]->setBuffer(buffers[0]);
for (unsigned int b = 1; b < VertexData::MaxAttribs; ++b) {
if (v.getBufferID(b))
geom[VertexData::Syntax[b]]->setBuffer(buffers[b]);
}
id = mg[g]->getIndexData().getBufferID();
optix::Buffer indices = o_Context->createBufferFromGLBO(RT_BUFFER_INPUT, id);
indices->setFormat(RT_FORMAT_UNSIGNED_INT);
indices->setSize(mg[g]->getIndexData().getIndexSize());
geom["index_buffer"]->setBuffer(indices);
o_Material = o_Context->createMaterial();
o_Material->setClosestHitProgram(0, o_ClosestHitProgram);
o_Material["diffuse"]->set4fv(MATERIALLIBMANAGER->getMaterial(this->m_MaterialMap[mg[g]->getMaterialName()])->getColor().getDiffuse());
o_GeomInstances.push_back(o_Context->createGeometryInstance());
o_GeomInstances[o_GeomInstances.size()-1]->setMaterialCount(1);
o_GeomInstances[o_GeomInstances.size()-1]->setMaterial(0, o_Material);
o_GeomInstances[o_GeomInstances.size()-1]->setGeometry(geom);
}
catch ( optix::Exception& e ) {
NAU_THROW("Optix Error: Adding scene %s to pass %s (adding material groups) [%s]",
sc->getName().c_str(), m_Name.c_str(),e.getErrorString().c_str());
}
}
}
}
try {
o_GeomGroup->setChildCount(o_GeomInstances.size());
for (unsigned int i = 0; i < o_GeomInstances.size(); ++i) {
o_GeomGroup->setChild(i,o_GeomInstances[i]);
}
o_GeomGroup->setAcceleration(o_Context->createAcceleration("Bvh","Bvh"));
}
catch ( optix::Exception& e ) {
NAU_THROW("Optix Error: Adding scene %s to pass %s (adding instances to geometry group) [%s]",
sc->getName().c_str(), m_Name.c_str(),e.getErrorString().c_str());
}
//o_Context["geometry"]->set(o_GeomGroup);
*/
}
}
void
PassOptix::optixInit() {
glGetError();
// Can these be removed due to texture count?
o_TexLib.addTexture(1);
o_Context["tex0"]->set(o_TexLib.getTexture(1));
std::set<std::string> *materialNames = new std::set<std::string>;
std::vector<std::string>::iterator scenesIter;
scenesIter = m_SceneVector.begin();
for ( ; scenesIter != m_SceneVector.end(); ++scenesIter) {
IScene *aScene = RENDERMANAGER->getScene (*scenesIter);
aScene->compile();
// Adding Materials to optix lib
aScene->getMaterialNames(materialNames);
std::set<std::string>::iterator matIter;
matIter = materialNames->begin();
for( ; matIter != materialNames->end(); ++matIter) {
o_MatLib.addMaterial(m_MaterialMap[*matIter]);
}
materialNames->clear();
std::vector<SceneObject *> objs = aScene->getAllObjects();
std::vector<nau::scene::SceneObject*>::iterator objsIter;
objsIter = objs.begin();
for ( ; objsIter != objs.end(); ++objsIter) {
o_GeomLib.addSceneObject(*objsIter, m_MaterialMap);
// o_GeomLib.addSceneObject((*objsIter)->getId(), m_MaterialMap);
}
}
o_GeomLib.buildGeometryGroup();
o_Context["top_object"]->set(o_GeomLib.getGeometryGroup());
o_MatLib.applyMissPrograms();
std::map<std::string, std::string>::iterator iter;
iter = o_InputBuffers.begin();
for ( ; iter != o_InputBuffers.end(); ++iter) {
try {
unsigned int id = RESOURCEMANAGER->getTexture(iter->second)->getPropi(ITexture::ID);
if (RESOURCEMANAGER->getTexture(iter->second)->getPrope(ITexture::DIMENSION) == GL_TEXTURE_2D) {
optix::TextureSampler rtWorldSpaceTexture = o_Context->createTextureSamplerFromGLImage(id, RT_TARGET_GL_TEXTURE_2D);
rtWorldSpaceTexture->setWrapMode(0, RT_WRAP_CLAMP_TO_EDGE);
rtWorldSpaceTexture->setWrapMode(1, RT_WRAP_CLAMP_TO_EDGE);
rtWorldSpaceTexture->setIndexingMode(RT_TEXTURE_INDEX_ARRAY_INDEX);
rtWorldSpaceTexture->setReadMode(RT_TEXTURE_READ_ELEMENT_TYPE);
rtWorldSpaceTexture->setMaxAnisotropy(1.0f);
rtWorldSpaceTexture->setFilteringModes(RT_FILTER_NEAREST, RT_FILTER_NEAREST, RT_FILTER_NONE);
o_Context[iter->first]->setTextureSampler(rtWorldSpaceTexture);
}
}
catch(optix::Exception& e) {
NAU_THROW("Optix Error: Input Buffer preparation in pass %s [%s]", m_Name.c_str(), e.getErrorString().c_str());
}
}
std::map<std::string, databuffer>::iterator iter2;
iter2 = o_OutputDataBuffer.begin();
ITexture *texID;
for ( ; iter2 != o_OutputDataBuffer.end() ; ++iter2) {
texID = RESOURCEMANAGER->getTexture(iter2->second.texName);
// int format = texID->getPrope(ITexture::FORMAT);
int tex = texID->getPropi(ITexture::ID);
unsigned int pbo;
glGenBuffers(1, &pbo);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, pbo);
// need to allow different types
glBufferData(GL_PIXEL_UNPACK_BUFFER, texID->getPropi(ITexture::WIDTH)*texID->getPropi(ITexture::HEIGHT)*texID->getPropi(ITexture::ELEMENT_SIZE), 0, GL_STREAM_READ);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
optix::Buffer ob = o_Context->createBufferFromGLBO(RT_BUFFER_OUTPUT, pbo);
ob->setSize(texID->getPropi(ITexture::WIDTH), texID->getPropi(ITexture::HEIGHT));
// same here (types)
ob->setFormat(getOptixFormat(texID));
o_Context[iter2->first]->setBuffer(ob);
o_OutputDataBuffer[iter2->first].pbo = pbo;
//
}
#if (TEST == 2)
try {
unsigned int id = RESOURCEMANAGER->getTexture("Deferred Render Targets::pos")->getId();
optix::ITextureSampler rtWorldSpaceTexture = o_Context->createTextureSamplerFromGLImage(id, RT_TARGET_GL_TEXTURE_2D);
rtWorldSpaceTexture->setWrapMode(0, RT_WRAP_CLAMP_TO_EDGE);
rtWorldSpaceTexture->setWrapMode(1, RT_WRAP_CLAMP_TO_EDGE);
rtWorldSpaceTexture->setIndexingMode(RT_TEXTURE_INDEX_ARRAY_INDEX);
rtWorldSpaceTexture->setReadMode(RT_TEXTURE_READ_ELEMENT_TYPE);
rtWorldSpaceTexture->setMaxAnisotropy(1.0f);
rtWorldSpaceTexture->setFilteringModes(RT_FILTER_NEAREST, RT_FILTER_NEAREST, RT_FILTER_NONE);
o_Context["pos_buffer"]->setTextureSampler(rtWorldSpaceTexture);
}
catch(optix::Exception& e) {
NAU_THROW("Optix Error: Input Buffer preparation in pass %s [%s]", m_Name.c_str(), e.getErrorString().c_str());
}
#endif
o_OptixIsPrepared = true;
}