void ESKOgre::createFakeEntity(Ogre::SceneManager *mSceneMgr) { Ogre::MeshPtr msh = Ogre::MeshManager::getSingleton().createManual(name + "_skeleton", XENOVIEWER_RESOURCE_GROUP); msh->setSkeletonName(name); Ogre::SubMesh* sub = msh->createSubMesh(); const size_t nVertices = 3; const size_t nVertCount = 3; const size_t vbufCount = nVertCount*nVertices; float *vertices = (float *)malloc(sizeof(float)*vbufCount); for (size_t i = 0; i < nVertices; i++) { vertices[i*nVertCount] = 0.0; vertices[i*nVertCount + 1] = 0.0; vertices[i*nVertCount + 2] = 0.0; } const size_t ibufCount = 3; unsigned short *faces = (unsigned short *)malloc(sizeof(unsigned short) * ibufCount); for (size_t i = 0; i < ibufCount; i++) { faces[i] = i; } msh->sharedVertexData = new Ogre::VertexData(); msh->sharedVertexData->vertexCount = nVertices; Ogre::VertexDeclaration* decl = msh->sharedVertexData->vertexDeclaration; size_t offset = 0; decl->addElement(0, offset, Ogre::VET_FLOAT3, Ogre::VES_POSITION); offset += Ogre::VertexElement::getTypeSize(Ogre::VET_FLOAT3); Ogre::HardwareVertexBufferSharedPtr vbuf = Ogre::HardwareBufferManager::getSingleton().createVertexBuffer(offset, msh->sharedVertexData->vertexCount, Ogre::HardwareBuffer::HBU_STATIC_WRITE_ONLY); vbuf->writeData(0, vbuf->getSizeInBytes(), vertices, true); Ogre::VertexBufferBinding* bind = msh->sharedVertexData->vertexBufferBinding; bind->setBinding(0, vbuf); Ogre::HardwareIndexBufferSharedPtr ibuf = Ogre::HardwareBufferManager::getSingleton().createIndexBuffer(Ogre::HardwareIndexBuffer::IT_16BIT, ibufCount, Ogre::HardwareBuffer::HBU_STATIC_WRITE_ONLY); ibuf->writeData(0, ibuf->getSizeInBytes(), faces, true); sub->useSharedVertices = true; sub->indexData->indexBuffer = ibuf; sub->indexData->indexCount = ibufCount; sub->indexData->indexStart = 0; msh->_setBounds(Ogre::AxisAlignedBox(-100, -100, -100, 100, 100, 100)); msh->_setBoundingSphereRadius(100); msh->load(); free(faces); free(vertices); skeleton_entity = mSceneMgr->createEntity(name + "_skeleton"); skeleton_node = mSceneMgr->getRootSceneNode()->createChildSceneNode(); skeleton_node->attachObject(skeleton_entity); skeleton_node->setVisible(false); }
Ogre::SubMesh *EMDOgre::createOgreSubmesh(EMDTriangles *triangles, Ogre::MeshPtr mesh) { Ogre::SubMesh *sub = mesh->createSubMesh(); const size_t ibufCount = triangles->faces.size(); unsigned short *faces = (unsigned short *)malloc(sizeof(unsigned short) * ibufCount); for (size_t i = 0; i<ibufCount; i++) { faces[i] = triangles->faces[i]; } Ogre::HardwareIndexBufferSharedPtr ibuf = Ogre::HardwareBufferManager::getSingleton().createIndexBuffer(Ogre::HardwareIndexBuffer::IT_16BIT, ibufCount, Ogre::HardwareBuffer::HBU_STATIC_WRITE_ONLY); ibuf->writeData(0, ibuf->getSizeInBytes(), faces, true); sub->useSharedVertices = true; sub->indexData->indexBuffer = ibuf; sub->indexData->indexCount = ibufCount; sub->indexData->indexStart = 0; free(faces); return sub; }
void MapView::createTerrain() { unsigned int sizeX = mMap->getTerrainSize().x; unsigned int sizeZ = mMap->getTerrainSize().z; mTileX = 33; mTileZ = 33; unsigned int tileCount = ((sizeX - 1) / (mTileX - 1)) * ((sizeZ - 1) / (mTileZ - 1)); unsigned int vertexPerTile = mTileX * mTileZ; unsigned int trianglesPerTile = (mTileX - 1) * (mTileZ - 1) * 2; mMeshes.resize(tileCount); mEntities.resize(tileCount); mSceneNodes.resize(tileCount); // vertexPerTile * 3 vertices * 2 texture coordinates * 3 colours * 3 normals VertexVector vertices(vertexPerTile * 11); // trianglesPerTile * 3 indices per each triangle IndexVector indices[3] = { IndexVector(trianglesPerTile * 3 ), IndexVector(trianglesPerTile * 3 / 4), IndexVector(trianglesPerTile * 3 / 8) }; unsigned int vertexIndex, indexIndex = 0, tileIndex = 0; for (unsigned int zIndex = 0; zIndex < mTileZ - 1; ++zIndex) { for (unsigned int xIndex = 0; xIndex < mTileX - 1; ++xIndex) { indices[0][indexIndex++] = zIndex * mTileX + xIndex; indices[0][indexIndex++] = (zIndex + 1) * mTileX + xIndex; indices[0][indexIndex++] = zIndex * mTileX + xIndex + 1; indices[0][indexIndex++] = (zIndex + 1) * mTileX + xIndex; indices[0][indexIndex++] = (zIndex + 1) * mTileX + xIndex + 1; indices[0][indexIndex++] = zIndex * mTileX + xIndex + 1; } } indexIndex = 0; for (unsigned int zIndex = 0; zIndex < mTileZ - 1; zIndex += 2) { for (unsigned int xIndex = 0; xIndex < mTileX - 1; xIndex += 2) { indices[1][indexIndex++] = zIndex * mTileX + xIndex; indices[1][indexIndex++] = (zIndex + 2) * mTileX + xIndex; indices[1][indexIndex++] = zIndex * mTileX + xIndex + 2; indices[1][indexIndex++] = (zIndex + 2) * mTileX + xIndex; indices[1][indexIndex++] = (zIndex + 2) * mTileX + xIndex + 2; indices[1][indexIndex++] = zIndex * mTileX + xIndex + 2; } } indexIndex = 0; for (unsigned int zIndex = 0; zIndex < mTileZ - 1; zIndex += 4) { for (unsigned int xIndex = 0; xIndex < mTileX - 1; xIndex += 4) { indices[2][indexIndex++] = zIndex * mTileX + xIndex; indices[2][indexIndex++] = (zIndex + 4) * mTileX + xIndex; indices[2][indexIndex++] = zIndex * mTileX + xIndex + 4; indices[2][indexIndex++] = (zIndex + 4) * mTileX + xIndex; indices[2][indexIndex++] = (zIndex + 4) * mTileX + xIndex + 4; indices[2][indexIndex++] = zIndex * mTileX + xIndex + 4; } } float scaleX = mMap->getSize().x / (float)(sizeX - 1); float scaleZ = mMap->getSize().z / (float)(sizeZ - 1); for (unsigned int zTile = 0; zTile < (sizeZ - 1); zTile += (mTileZ - 1)) { for (unsigned int xTile = 0; xTile < (sizeX - 1); xTile += (mTileX - 1)) { vertexIndex = 0; for (unsigned int zVertex = zTile; zVertex < zTile + mTileZ; ++zVertex) { for (unsigned int xVertex = xTile; xVertex < xTile + mTileX; ++xVertex) { float yVertex = mMap->getTerrainData()[zVertex * sizeX + xVertex]; vertices[vertexIndex++] = (float)xVertex * scaleX; vertices[vertexIndex++] = (float)yVertex; vertices[vertexIndex++] = (float)zVertex * scaleZ; vertices[vertexIndex++] = (float)xVertex / (float)(sizeX - 1); vertices[vertexIndex++] = (float)zVertex / (float)(sizeZ - 1); vertices[vertexIndex++] = 1.0f; vertices[vertexIndex++] = 1.0f; vertices[vertexIndex++] = 1.0f; vertices[vertexIndex++] = 0.0f; vertices[vertexIndex++] = 1.0f; vertices[vertexIndex++] = 0.0f; } } std::string name = "MapView_" + Convert::ToString(mID) + "_Tile_" + Convert::ToString(tileIndex); // Create mesh. mMeshes[tileIndex] = Ogre::MeshManager::getSingleton().createManual( name, "General").get(); // Create one submesh. Ogre::SubMesh* subMesh = mMeshes[tileIndex]->createSubMesh(); // Create vertex data structure for vertices shared between submeshes. mMeshes[tileIndex]->sharedVertexData = new Ogre::VertexData(); mMeshes[tileIndex]->sharedVertexData->vertexCount = vertexPerTile; // Create declaration (memory format) of vertex data. Ogre::VertexDeclaration* decl = mMeshes[tileIndex]->sharedVertexData->vertexDeclaration; size_t offset = 0; // 1st buffer decl->addElement(0, offset, Ogre::VET_FLOAT3, Ogre::VES_POSITION); offset += Ogre::VertexElement::getTypeSize(Ogre::VET_FLOAT3); decl->addElement(0, offset, Ogre::VET_FLOAT2, Ogre::VES_TEXTURE_COORDINATES); offset += Ogre::VertexElement::getTypeSize(Ogre::VET_FLOAT2); decl->addElement(0, offset, Ogre::VET_FLOAT3, Ogre::VES_DIFFUSE); offset += Ogre::VertexElement::getTypeSize(Ogre::VET_FLOAT3); decl->addElement(0, offset, Ogre::VET_FLOAT3, Ogre::VES_NORMAL); offset += Ogre::VertexElement::getTypeSize(Ogre::VET_FLOAT3); // Allocate vertex buffer of the requested number of vertices (vertexPerTile) // and bytes per vertex (offset). Ogre::HardwareVertexBufferSharedPtr vbuf = Ogre::HardwareBufferManager::getSingleton().createVertexBuffer( offset, vertexPerTile, Ogre::HardwareBuffer::HBU_STATIC_WRITE_ONLY); // Upload the vertex data to the card vbuf->writeData(0, vbuf->getSizeInBytes(), &(vertices.front()), true); // Set vertex buffer binding so buffer 0 is bound to our vertex buffer. Ogre::VertexBufferBinding* bind = mMeshes[tileIndex]->sharedVertexData->vertexBufferBinding; bind->setBinding(0, vbuf); // Allocate index buffer of the requested number of vertices . Ogre::HardwareIndexBufferSharedPtr ibuf = Ogre::HardwareBufferManager::getSingleton(). createIndexBuffer( Ogre::HardwareIndexBuffer::IT_16BIT, trianglesPerTile * 3, Ogre::HardwareBuffer::HBU_STATIC_WRITE_ONLY); // Upload the index data to the card. ibuf->writeData(0, ibuf->getSizeInBytes(), &(indices[0].front()), true); /// Set parameters of the submesh subMesh->useSharedVertices = true; subMesh->indexData->indexBuffer = ibuf; subMesh->indexData->indexCount = indices[0].size(); subMesh->indexData->indexStart = 0; subMesh->setMaterialName("terrain"); float xMin = vertices[0]; float yMin = vertices[1]; float zMin = vertices[2]; float xMax = vertices[0]; float yMax = vertices[1]; float zMax = vertices[2]; for (unsigned int i = 0; i < vertexPerTile * 11; i += 11) { if (vertices[i ] < xMin) xMin = vertices[i ]; else if (vertices[i ] > xMax) xMax = vertices[i ]; if (vertices[i + 1] < yMin) yMin = vertices[i + 1]; else if (vertices[i + 1] > yMax) yMax = vertices[i + 1]; if (vertices[i + 2] < zMin) zMin = vertices[i + 2]; else if (vertices[i + 2] > zMax) zMax = vertices[i + 2]; } // Set bounding information (for culling). mMeshes[tileIndex]->_setBounds(Ogre::AxisAlignedBox(xMin, yMin, zMin, xMax, yMax, zMax)); mMeshes[tileIndex]->_setBoundingSphereRadius(1.0f); // Notify Mesh object that it has been loaded. mMeshes[tileIndex]->load(); // Create entity. mEntities[tileIndex] = createEntity(name, name); mEntities[tileIndex]->setCastShadows(false); mEntities[tileIndex]->setUserAny(Ogre::Any(this)); // Create scene node. mSceneNodes[tileIndex] = createSceneNode(); mSceneNodes[tileIndex]->attachObject(mEntities[tileIndex]); // Advance to next tile. tileIndex++; } } }
void NIFMeshLoader::createSubMesh(Ogre::Mesh *mesh, const Nif::NiTriShape *shape) { const Nif::NiTriShapeData *data = shape->data.getPtr(); const Nif::NiSkinInstance *skin = (shape->skin.empty() ? NULL : shape->skin.getPtr()); std::vector<Ogre::Vector3> srcVerts = data->vertices; std::vector<Ogre::Vector3> srcNorms = data->normals; Ogre::HardwareBuffer::Usage vertUsage = Ogre::HardwareBuffer::HBU_STATIC; bool vertShadowBuffer = false; bool geomMorpherController = false; if(!shape->controller.empty()) { Nif::ControllerPtr ctrl = shape->controller; do { if(ctrl->recType == Nif::RC_NiGeomMorpherController) { vertUsage = Ogre::HardwareBuffer::HBU_DYNAMIC_WRITE_ONLY; vertShadowBuffer = true; geomMorpherController = true; break; } } while(!(ctrl=ctrl->next).empty()); } if(skin != NULL) { vertUsage = Ogre::HardwareBuffer::HBU_DYNAMIC_WRITE_ONLY; vertShadowBuffer = true; // Only set a skeleton when skinning. Unskinned meshes with a skeleton will be // explicitly attached later. mesh->setSkeletonName(mName); // Convert vertices and normals to bone space from bind position. It would be // better to transform the bones into bind position, but there doesn't seem to // be a reliable way to do that. std::vector<Ogre::Vector3> newVerts(srcVerts.size(), Ogre::Vector3(0.0f)); std::vector<Ogre::Vector3> newNorms(srcNorms.size(), Ogre::Vector3(0.0f)); const Nif::NiSkinData *data = skin->data.getPtr(); const Nif::NodeList &bones = skin->bones; for(size_t b = 0;b < bones.length();b++) { Ogre::Matrix4 mat; mat.makeTransform(data->bones[b].trafo.trans, Ogre::Vector3(data->bones[b].trafo.scale), Ogre::Quaternion(data->bones[b].trafo.rotation)); mat = bones[b]->getWorldTransform() * mat; const std::vector<Nif::NiSkinData::VertWeight> &weights = data->bones[b].weights; for(size_t i = 0;i < weights.size();i++) { size_t index = weights[i].vertex; float weight = weights[i].weight; newVerts.at(index) += (mat*srcVerts[index]) * weight; if(newNorms.size() > index) { Ogre::Vector4 vec4(srcNorms[index][0], srcNorms[index][1], srcNorms[index][2], 0.0f); vec4 = mat*vec4 * weight; newNorms[index] += Ogre::Vector3(&vec4[0]); } } } srcVerts = newVerts; srcNorms = newNorms; } else { Ogre::SkeletonManager *skelMgr = Ogre::SkeletonManager::getSingletonPtr(); if(skelMgr->getByName(mName).isNull()) { // No skinning and no skeleton, so just transform the vertices and // normals into position. Ogre::Matrix4 mat4 = shape->getWorldTransform(); for(size_t i = 0;i < srcVerts.size();i++) { Ogre::Vector4 vec4(srcVerts[i].x, srcVerts[i].y, srcVerts[i].z, 1.0f); vec4 = mat4*vec4; srcVerts[i] = Ogre::Vector3(&vec4[0]); } for(size_t i = 0;i < srcNorms.size();i++) { Ogre::Vector4 vec4(srcNorms[i].x, srcNorms[i].y, srcNorms[i].z, 0.0f); vec4 = mat4*vec4; srcNorms[i] = Ogre::Vector3(&vec4[0]); } } } // Set the bounding box first BoundsFinder bounds; bounds.add(&srcVerts[0][0], srcVerts.size()); if(!bounds.isValid()) { float v[3] = { 0.0f, 0.0f, 0.0f }; bounds.add(&v[0], 1); } mesh->_setBounds(Ogre::AxisAlignedBox(bounds.minX()-0.5f, bounds.minY()-0.5f, bounds.minZ()-0.5f, bounds.maxX()+0.5f, bounds.maxY()+0.5f, bounds.maxZ()+0.5f)); mesh->_setBoundingSphereRadius(bounds.getRadius()); // This function is just one long stream of Ogre-barf, but it works // great. Ogre::HardwareBufferManager *hwBufMgr = Ogre::HardwareBufferManager::getSingletonPtr(); Ogre::HardwareVertexBufferSharedPtr vbuf; Ogre::HardwareIndexBufferSharedPtr ibuf; Ogre::VertexBufferBinding *bind; Ogre::VertexDeclaration *decl; int nextBuf = 0; Ogre::SubMesh *sub = mesh->createSubMesh(); // Add vertices sub->useSharedVertices = false; sub->vertexData = new Ogre::VertexData(); sub->vertexData->vertexStart = 0; sub->vertexData->vertexCount = srcVerts.size(); decl = sub->vertexData->vertexDeclaration; bind = sub->vertexData->vertexBufferBinding; if(srcVerts.size()) { vbuf = hwBufMgr->createVertexBuffer(Ogre::VertexElement::getTypeSize(Ogre::VET_FLOAT3), srcVerts.size(), vertUsage, vertShadowBuffer); vbuf->writeData(0, vbuf->getSizeInBytes(), &srcVerts[0][0], true); decl->addElement(nextBuf, 0, Ogre::VET_FLOAT3, Ogre::VES_POSITION); bind->setBinding(nextBuf++, vbuf); } // Vertex normals if(srcNorms.size()) { vbuf = hwBufMgr->createVertexBuffer(Ogre::VertexElement::getTypeSize(Ogre::VET_FLOAT3), srcNorms.size(), vertUsage, vertShadowBuffer); vbuf->writeData(0, vbuf->getSizeInBytes(), &srcNorms[0][0], true); decl->addElement(nextBuf, 0, Ogre::VET_FLOAT3, Ogre::VES_NORMAL); bind->setBinding(nextBuf++, vbuf); } // Vertex colors const std::vector<Ogre::Vector4> &colors = data->colors; if(colors.size()) { Ogre::RenderSystem *rs = Ogre::Root::getSingleton().getRenderSystem(); std::vector<Ogre::RGBA> colorsRGB(colors.size()); for(size_t i = 0;i < colorsRGB.size();i++) { Ogre::ColourValue clr(colors[i][0], colors[i][1], colors[i][2], colors[i][3]); rs->convertColourValue(clr, &colorsRGB[i]); } vbuf = hwBufMgr->createVertexBuffer(Ogre::VertexElement::getTypeSize(Ogre::VET_COLOUR), colorsRGB.size(), Ogre::HardwareBuffer::HBU_STATIC); vbuf->writeData(0, vbuf->getSizeInBytes(), &colorsRGB[0], true); decl->addElement(nextBuf, 0, Ogre::VET_COLOUR, Ogre::VES_DIFFUSE); bind->setBinding(nextBuf++, vbuf); } // Texture UV coordinates size_t numUVs = data->uvlist.size(); if (numUVs) { size_t elemSize = Ogre::VertexElement::getTypeSize(Ogre::VET_FLOAT2); for(size_t i = 0; i < numUVs; i++) decl->addElement(nextBuf, elemSize*i, Ogre::VET_FLOAT2, Ogre::VES_TEXTURE_COORDINATES, i); vbuf = hwBufMgr->createVertexBuffer(decl->getVertexSize(nextBuf), srcVerts.size(), Ogre::HardwareBuffer::HBU_STATIC); std::vector<Ogre::Vector2> allUVs; allUVs.reserve(srcVerts.size()*numUVs); for (size_t vert = 0; vert<srcVerts.size(); ++vert) for(size_t i = 0; i < numUVs; i++) allUVs.push_back(data->uvlist[i][vert]); vbuf->writeData(0, elemSize*srcVerts.size()*numUVs, &allUVs[0], true); bind->setBinding(nextBuf++, vbuf); } // Triangle faces const std::vector<short> &srcIdx = data->triangles; if(srcIdx.size()) { ibuf = hwBufMgr->createIndexBuffer(Ogre::HardwareIndexBuffer::IT_16BIT, srcIdx.size(), Ogre::HardwareBuffer::HBU_STATIC); ibuf->writeData(0, ibuf->getSizeInBytes(), &srcIdx[0], true); sub->indexData->indexBuffer = ibuf; sub->indexData->indexCount = srcIdx.size(); sub->indexData->indexStart = 0; } // Assign bone weights for this TriShape if(skin != NULL) { Ogre::SkeletonPtr skel = Ogre::SkeletonManager::getSingleton().getByName(mName); const Nif::NiSkinData *data = skin->data.getPtr(); const Nif::NodeList &bones = skin->bones; for(size_t i = 0;i < bones.length();i++) { Ogre::VertexBoneAssignment boneInf; boneInf.boneIndex = skel->getBone(bones[i]->name)->getHandle(); const std::vector<Nif::NiSkinData::VertWeight> &weights = data->bones[i].weights; for(size_t j = 0;j < weights.size();j++) { boneInf.vertexIndex = weights[j].vertex; boneInf.weight = weights[j].weight; sub->addBoneAssignment(boneInf); } } } const Nif::NiTexturingProperty *texprop = NULL; const Nif::NiMaterialProperty *matprop = NULL; const Nif::NiAlphaProperty *alphaprop = NULL; const Nif::NiVertexColorProperty *vertprop = NULL; const Nif::NiZBufferProperty *zprop = NULL; const Nif::NiSpecularProperty *specprop = NULL; const Nif::NiWireframeProperty *wireprop = NULL; bool needTangents = false; shape->getProperties(texprop, matprop, alphaprop, vertprop, zprop, specprop, wireprop); std::string matname = NIFMaterialLoader::getMaterial(data, mesh->getName(), mGroup, texprop, matprop, alphaprop, vertprop, zprop, specprop, wireprop, needTangents); if(matname.length() > 0) sub->setMaterialName(matname); // build tangents if the material needs them if (needTangents) { unsigned short src,dest; if (!mesh->suggestTangentVectorBuildParams(Ogre::VES_TANGENT, src,dest)) mesh->buildTangentVectors(Ogre::VES_TANGENT, src,dest); } // Create a dummy vertex animation track if there's a geom morpher controller // This is required to make Ogre create the buffers we will use for software vertex animation if (srcVerts.size() && geomMorpherController) mesh->createAnimation("dummy", 0)->createVertexTrack(1, sub->vertexData, Ogre::VAT_MORPH); }
Ogre::SceneNode *TutorialApplication::loadBSP(std::shared_ptr<l2p::UModel> m, bool ignoreNonVisible) { l2p::Name name = m->package->name; std::vector<float> vertex_data; std::vector<uint32_t> index_buf; l2p::Box bounds; // Build vertex and index buffer. for (auto ni = m->nodes.begin(), ne = m->nodes.end(); ni != ne; ++ni) { l2p::BSPNode &n = *ni; l2p::BSPSurface &s = m->surfaces[n.surface]; if (ignoreNonVisible && ignoreNode(m.get(), n, s)) continue; uint32_t vert_start = vertex_data.size() / 8; const Ogre::Vector3 uvec = ogre_cast(m->vectors[s.U]); const Ogre::Vector3 vvec = ogre_cast(m->vectors[s.V]); const Ogre::Vector3 base = ogre_cast(m->points[s.base]); int usize = 0; int vsize = 0; std::shared_ptr<l2p::UTexture> mat = s.material; if (mat) { usize = mat->USize; vsize = mat->VSize; } if (usize == 0 || vsize == 0) usize = vsize = 64; // Vertex buffer. if (n.num_verticies > 0) { l2p::Vector Normal = m->vectors[s.normal]; for (uint32_t vert_index = 0; vert_index < n.num_verticies; ++vert_index) { const l2p::Vector &pos = m->points[m->vertexes[n.vert_pool + vert_index].vertex]; const Ogre::Vector3 dist(ogre_cast(pos) - base); const Ogre::Vector2 tcoord((dist | uvec) / float(usize), (dist | vvec) / float(vsize)); bounds += pos; vertex_data.push_back(pos.X); vertex_data.push_back(pos.Y); vertex_data.push_back(pos.Z); vertex_data.push_back(Normal.X); vertex_data.push_back(Normal.Y); vertex_data.push_back(Normal.Z); vertex_data.push_back(tcoord.x); vertex_data.push_back(tcoord.y); } if (s.flags & l2p::PF_TwoSided) { for (uint32_t vert_index = 0; vert_index < n.num_verticies; ++vert_index) { const l2p::Vector &pos = m->points[m->vertexes[n.vert_pool + vert_index].vertex]; const Ogre::Vector3 dist(ogre_cast(pos) - base); const Ogre::Vector2 tcoord((dist | uvec) / float(usize), (dist | vvec) / float(vsize)); vertex_data.push_back(pos.X); vertex_data.push_back(pos.Y); vertex_data.push_back(pos.Z); vertex_data.push_back(Normal.X); vertex_data.push_back(Normal.Y); vertex_data.push_back(-Normal.Z); vertex_data.push_back(tcoord.x); vertex_data.push_back(tcoord.y); } } } // Index buffer. for (int verti = 2; verti < n.num_verticies; ++verti) { index_buf.push_back(vert_start); index_buf.push_back(vert_start + verti - 1); index_buf.push_back(vert_start + verti); } if (s.flags & l2p::PF_TwoSided) { for (int verti = 2; verti < n.num_verticies; ++verti) { index_buf.push_back(vert_start); index_buf.push_back(vert_start + verti); index_buf.push_back(vert_start + verti - 1); } } } if (vertex_data.size() == 0 || index_buf.size() == 0) return nullptr; Ogre::MeshPtr mesh = Ogre::MeshManager::getSingleton().createManual(Ogre::String(name) + Ogre::String(m->name), "General"); Ogre::VertexData *data = new Ogre::VertexData(); mesh->sharedVertexData = data; data->vertexCount = vertex_data.size() / 8; Ogre::VertexDeclaration *decl = data->vertexDeclaration; uint32_t offset = 0; decl->addElement(0, offset, Ogre::VET_FLOAT3, Ogre::VES_POSITION); offset += Ogre::VertexElement::getTypeSize(Ogre::VET_FLOAT3); decl->addElement(0, offset, Ogre::VET_FLOAT3, Ogre::VES_NORMAL); offset += Ogre::VertexElement::getTypeSize(Ogre::VET_FLOAT3); decl->addElement(0, offset, Ogre::VET_FLOAT2, Ogre::VES_TEXTURE_COORDINATES); offset += Ogre::VertexElement::getTypeSize(Ogre::VET_FLOAT2); Ogre::HardwareVertexBufferSharedPtr vbuf = Ogre::HardwareBufferManager::getSingleton().createVertexBuffer( offset, data->vertexCount, Ogre::HardwareBuffer::HBU_STATIC_WRITE_ONLY); vbuf->writeData(0, vbuf->getSizeInBytes(), &vertex_data.front(), true); data->vertexBufferBinding->setBinding(0, vbuf); // Setup index buffer. Ogre::HardwareIndexBufferSharedPtr ibuf = Ogre::HardwareBufferManager::getSingleton().createIndexBuffer( Ogre::HardwareIndexBuffer::IT_32BIT, index_buf.size(), Ogre::HardwareBuffer::HBU_STATIC_WRITE_ONLY); ibuf->writeData(0, ibuf->getSizeInBytes(), &index_buf.front(), true); Ogre::SubMesh *subMesh = mesh->createSubMesh(); subMesh->useSharedVertices = true; subMesh->indexData->indexBuffer = ibuf; subMesh->indexData->indexCount = index_buf.size(); subMesh->indexData->indexStart = 0; mesh->_setBounds(Ogre::AxisAlignedBox(bounds.min.X, bounds.min.Y, bounds.min.Z, bounds.max.X, bounds.max.Y, bounds.max.Z)); mesh->_setBoundingSphereRadius((std::max(bounds.max.X - bounds.min.X, std::max(bounds.max.Y - bounds.min.Y, bounds.max.Z - bounds.min.Z))) / 2.0); mesh->load(); Ogre::Entity *ent = mSceneMgr->createEntity(Ogre::String(name) + Ogre::String(m->name) + "E", Ogre::String(name) + Ogre::String(m->name)); ent->setUserAny(Ogre::Any(static_cast<l2p::UObject*>(m.get()))); ent->setMaterialName("StaticMesh/Default"); Ogre::SceneNode *node = mUnrealCordNode->createChildSceneNode(); node->attachObject(ent); return node; }
void RoR::GfxEnvmap::SetupEnvMap() { m_rtt_texture = Ogre::TextureManager::getSingleton().getByName("EnvironmentTexture"); for (int face = 0; face < NUM_FACES; face++) { m_render_targets[face] = m_rtt_texture->getBuffer(face)->getRenderTarget(); m_cameras[face] = gEnv->sceneManager->createCamera("EnvironmentCamera-" + TOSTRING(face)); m_cameras[face]->setAspectRatio(1.0); m_cameras[face]->setProjectionType(Ogre::PT_PERSPECTIVE); m_cameras[face]->setFixedYawAxis(false); m_cameras[face]->setFOVy(Ogre::Degree(90)); m_cameras[face]->setNearClipDistance(0.1f); m_cameras[face]->setFarClipDistance(gEnv->mainCamera->getFarClipDistance()); Ogre::Viewport* v = m_render_targets[face]->addViewport(m_cameras[face]); v->setOverlaysEnabled(false); v->setClearEveryFrame(true); v->setBackgroundColour(gEnv->mainCamera->getViewport()->getBackgroundColour()); m_render_targets[face]->setAutoUpdated(false); } m_cameras[0]->setDirection(+Ogre::Vector3::UNIT_X); m_cameras[1]->setDirection(-Ogre::Vector3::UNIT_X); m_cameras[2]->setDirection(+Ogre::Vector3::UNIT_Y); m_cameras[3]->setDirection(-Ogre::Vector3::UNIT_Y); m_cameras[4]->setDirection(-Ogre::Vector3::UNIT_Z); m_cameras[5]->setDirection(+Ogre::Vector3::UNIT_Z); if (App::diag_envmap.GetActive()) { // create fancy mesh for debugging the envmap Ogre::Overlay* overlay = Ogre::OverlayManager::getSingleton().create("EnvMapDebugOverlay"); if (overlay) { Ogre::Vector3 position = Ogre::Vector3::ZERO; float scale = 1.0f; Ogre::MeshPtr mesh = Ogre::MeshManager::getSingletonPtr()->createManual("cubeMapDebug", Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME); // create sub mesh Ogre::SubMesh* sub = mesh->createSubMesh(); // Initialize render operation sub->operationType = Ogre::RenderOperation::OT_TRIANGLE_LIST; // sub->useSharedVertices = true; mesh->sharedVertexData = new Ogre::VertexData; sub->indexData = new Ogre::IndexData; // Create vertex declaration size_t offset = 0; mesh->sharedVertexData->vertexDeclaration->addElement(0, offset, Ogre::VET_FLOAT3, Ogre::VES_POSITION); offset += Ogre::VertexElement::getTypeSize(Ogre::VET_FLOAT3); mesh->sharedVertexData->vertexDeclaration->addElement(0, offset, Ogre::VET_FLOAT3, Ogre::VES_TEXTURE_COORDINATES); // Create and bind vertex buffer mesh->sharedVertexData->vertexCount = 14; Ogre::HardwareVertexBufferSharedPtr vertexBuffer = Ogre::HardwareBufferManager::getSingleton().createVertexBuffer( mesh->sharedVertexData->vertexDeclaration->getVertexSize(0), mesh->sharedVertexData->vertexCount, Ogre::HardwareBuffer::HBU_STATIC_WRITE_ONLY); mesh->sharedVertexData->vertexBufferBinding->setBinding(0, vertexBuffer); // Vertex data static const float vertexData[] = { // Position Texture coordinates // Index 0.0, 2.0, -1.0, 1.0, 1.0, // 0 0.0, 1.0, -1.0, -1.0, 1.0, // 1 1.0, 2.0, -1.0, 1.0, -1.0, // 2 1.0, 1.0, -1.0, -1.0, -1.0, // 3 2.0, 2.0, 1.0, 1.0, -1.0, // 4 2.0, 1.0, 1.0, -1.0, -1.0, // 5 3.0, 2.0, 1.0, 1.0, 1.0, // 6 3.0, 1.0, 1.0, -1.0, 1.0, // 7 4.0, 2.0, -1.0, 1.0, 1.0, // 8 4.0, 1.0, -1.0, -1.0, 1.0, // 9 1.0, 3.0, -1.0, 1.0, 1.0, // 10 2.0, 3.0, 1.0, 1.0, 1.0, // 11 1.0, 0.0, -1.0, -1.0, 1.0, // 12 2.0, 0.0, 1.0, -1.0, 1.0, // 13 }; // Fill vertex buffer float* pData = static_cast<float*>(vertexBuffer->lock(Ogre::HardwareBuffer::HBL_DISCARD)); for (size_t vertex = 0, i = 0; vertex < mesh->sharedVertexData->vertexCount; vertex++) { // Position *pData++ = position.x + scale * vertexData[i++]; *pData++ = position.y + scale * vertexData[i++]; *pData++ = 0.0; // Texture coordinates *pData++ = vertexData[i++]; *pData++ = vertexData[i++]; *pData++ = vertexData[i++]; } vertexBuffer->unlock(); // Create index buffer sub->indexData->indexCount = 36; Ogre::HardwareIndexBufferSharedPtr indexBuffer = Ogre::HardwareBufferManager::getSingleton().createIndexBuffer( Ogre::HardwareIndexBuffer::IT_16BIT, sub->indexData->indexCount, Ogre::HardwareBuffer::HBU_STATIC_WRITE_ONLY); sub->indexData->indexBuffer = indexBuffer; // Index data static const Ogre::uint16 indexData[] = { // Indices // Face 0, 1, 2, // 0 2, 1, 3, // 1 2, 3, 4, // 2 4, 3, 5, // 3 4, 5, 6, // 4 6, 5, 7, // 5 6, 7, 8, // 6 8, 7, 9, // 7 10, 2, 11, // 8 11, 2, 4, // 9 3, 12, 5, // 10 5, 12, 13, // 11 }; // Fill index buffer indexBuffer->writeData(0, indexBuffer->getSizeInBytes(), indexData, true); mesh->_setBounds(Ogre::AxisAlignedBox::BOX_INFINITE); mesh->_setBoundingSphereRadius(10); mesh->load(); Ogre::Entity* e = gEnv->sceneManager->createEntity(mesh->getName()); e->setCastShadows(false); e->setRenderQueueGroup(Ogre::RENDER_QUEUE_OVERLAY - 1); e->setVisible(true); e->setMaterialName("tracks/EnvMapDebug"); Ogre::SceneNode* mDebugSceneNode = new Ogre::SceneNode(gEnv->sceneManager); mDebugSceneNode->attachObject(e); mDebugSceneNode->setPosition(Ogre::Vector3(0, 0, -5)); mDebugSceneNode->setFixedYawAxis(true, Ogre::Vector3::UNIT_Y); mDebugSceneNode->setVisible(true); mDebugSceneNode->_update(true, true); mDebugSceneNode->_updateBounds(); overlay->add3D(mDebugSceneNode); overlay->show(); } } }
/*求对象rend和射线ray的全部交点到射线原点的距离 */ vector<Ogre::Real> BaseManager::Intersect(const Ogre::Ray& ray,Ogre::Renderable *rend){ Ogre::RenderOperation op; Ogre::VertexElementType vtype; size_t offset,pkgsize,source,indexNums,vertexNums; vector<Ogre::Real> result; rend->getRenderOperation( op ); if( !op.indexData || op.operationType==Ogre::RenderOperation::OT_LINE_LIST || op.operationType==Ogre::RenderOperation::OT_LINE_STRIP || op.operationType==Ogre::RenderOperation::OT_POINT_LIST ) return result; Ogre::VertexDeclaration* pvd = op.vertexData->vertexDeclaration; source = -1; for( size_t i = 0;i < pvd->getElementCount();++i ){ if( pvd->getElement(i)->getSemantic()==Ogre::VES_POSITION ){ source = pvd->getElement(i)->getSource(); offset = pvd->getElement(i)->getOffset(); vtype = pvd->getElement(i)->getType(); break; } } if( source == - 1 || vtype != Ogre::VET_FLOAT3 ) //别的格式目前没有考虑 return result; /*source对应与一个缓存区 getVertexSize(source)求缓存区中一个紧密数据包的大小 例如:一个数据包里面包括POSITION,COLOR,NORMAL,TEXCROOD然后在这个缓冲 区中循环。而getVertexSize求出这个包的字节大小 例如POSITION(FLOAT3) TEXCROOD(FLOAT2) 这样前面的是12字节后面的是8字节 getVertexSize返回20 */ pkgsize = pvd->getVertexSize(source); Ogre::HardwareVertexBufferSharedPtr hvb = op.vertexData->vertexBufferBinding->getBuffer(source); Ogre::HardwareIndexBufferSharedPtr ivb = op.indexData->indexBuffer; Ogre::HardwareIndexBuffer::IndexType indexType = op.indexData->indexBuffer->getType(); /*先将顶点数据复制一份,然后变换到世界坐标系 */ vertexNums = hvb->getNumVertices(); indexNums = ivb->getNumIndexes(); boost::scoped_array<float> vp( new float[3*vertexNums] ); boost::scoped_array<unsigned int> ip( new unsigned int[indexNums] ); { Ogre::Vector3 p3; Ogre::Matrix4 mat; rend->getWorldTransforms( &mat ); float* preal = (float*)hvb->lock( Ogre::HardwareBuffer::HBL_READ_ONLY ); float* ptarget = vp.get(); //这里考虑到对齐,我假设offset和pkgsize都可以被sizeof(float)整除 preal += offset/sizeof(float); size_t strip = pkgsize/sizeof(float); for( size_t i = 0; i < vertexNums;++i ){ p3.x = *preal; p3.y = *(preal+1); p3.z = *(preal+2); p3 = mat * p3; *ptarget++ = p3.x; *ptarget++ = p3.y; *ptarget++ = p3.z; preal += strip; } hvb->unlock(); } //拷贝出顶点数据 { unsigned int* pindex32 = ip.get(); if( indexType==Ogre::HardwareIndexBuffer::IT_16BIT ){ unsigned short* pi16 = (unsigned short*)ivb->lock( Ogre::HardwareBuffer::HBL_READ_ONLY ); copy( pi16,pi16+indexNums,pindex32 ); }else memcpy( pindex32,ivb->lock( Ogre::HardwareBuffer::HBL_READ_ONLY ),ivb->getSizeInBytes() ); ivb->unlock(); } /*数据都准备好了,vp保存了变换好的顶点,ip保存了顶点索引 下面根据情况求交点 */ switch( op.operationType ){ case Ogre::RenderOperation::OT_TRIANGLE_LIST: { /* 0,1,2 组成一个三角 3,4,5 下一个... */ Ogre::Vector3 a[3],n; int index,k = 0; float* preal = vp.get(); unsigned int* pindex = ip.get(); for( size_t i = 0;i<indexNums;++i ){ if( pindex[i] < vertexNums ){ index = pindex[i]*3; //对应与格式VET_FLOAT3 a[k].x = preal[index]; a[k].y = preal[index+1]; a[k].z = preal[index+2]; if( k == 2 ){//三个点都填满了 //这里使用的是Math3d的求交函数,而不是Ogre::Math的 //原因就在于Ogre::Math的求交点函数不能得到射线背面那个负的交点 std::pair<bool,Ogre::Real> res = Math3d::intersects(ray,a[0],a[1],a[2],true,true); if( res.first ) result.push_back( res.second ); k = 0; }else k++; }else{ WARNING_LOG("Game::Intersect"<<" Invalid index rang out" << " pindex["<<i<<"]="<<pindex[i] << "("<<vertexNums<<")"); return result; } } } break; case Ogre::RenderOperation::OT_TRIANGLE_FAN: {/* 0,1,2组成一个三角 0,2,3 组成下一个 0,3,4... */ assert( false||"Game::Intersect can't support OT_TRIANGLE_FAN " ); } break; case Ogre::RenderOperation::OT_TRIANGLE_STRIP: {//0,1,2组成第一个三角 1,2,3 组成下一个 2,3,4... assert( false||"Game::Intersect can't support OT_TRIANGLE_STRIP " ); } break; default:; } return result; }
void WaterObjectView::createLine() { size_t verticesCount = ((mWaterObject->getPointCount() - 1) * mSegments + 1) * 2; size_t verticesSize = verticesCount * 5; size_t indicesSize = ((mWaterObject->getPointCount() - 1) * mSegments) * 6; verticesCount = mWaterObject->getPointCount() * 2; verticesSize = verticesCount * 5; indicesSize = (mWaterObject->getPointCount() - 1) * 6; Ogre::Real* vertices = new Ogre::Real[verticesSize]; Ogre::uint16* indices = new Ogre::uint16[indicesSize]; unsigned int i, index = 0; // Prepare vertices. for (i = 0; i < mWaterObject->getPointCount(); ++i) { const Point3D& point3D = mWaterObject->getPoint(i); vertices[index++] = point3D.x - mWaterObject->getWidth() * 0.5f; vertices[index++] = point3D.y; vertices[index++] = point3D.z + 1.0f; vertices[index++] = point3D.x - mWaterObject->getWidth() * 0.5f;; vertices[index++] = point3D.z; vertices[index++] = point3D.x + mWaterObject->getWidth() * 0.5f; vertices[index++] = point3D.y; vertices[index++] = point3D.z + 1.0f; vertices[index++] = point3D.x + mWaterObject->getWidth() * 0.5f; vertices[index++] = point3D.z; } index = 0; // Prepare indices. for (i = 0; i < verticesCount - 2; i += 2) { indices[index++] = (Ogre::uint16)i; indices[index++] = (Ogre::uint16)i + 2; indices[index++] = (Ogre::uint16)i + 1; indices[index++] = (Ogre::uint16)i + 2; indices[index++] = (Ogre::uint16)i + 3; indices[index++] = (Ogre::uint16)i + 1; } // Create mesh. mMesh = Ogre::MeshManager::getSingleton().createManual( Ogre::StringConverter::toString(mID), "General").get(); // Create one submesh. Ogre::SubMesh* sub = mMesh->createSubMesh(); // Create vertex data structure for 8 vertices shared between submeshes. mMesh->sharedVertexData = new Ogre::VertexData(); mMesh->sharedVertexData->vertexCount = verticesCount; // Create declaration (memory format) of vertex data. Ogre::VertexDeclaration* decl = mMesh->sharedVertexData->vertexDeclaration; size_t offset = 0; // 1st buffer decl->addElement(0, offset, Ogre::VET_FLOAT3, Ogre::VES_POSITION); offset += Ogre::VertexElement::getTypeSize(Ogre::VET_FLOAT3); decl->addElement(0, offset, Ogre::VET_FLOAT2, Ogre::VES_TEXTURE_COORDINATES); offset += Ogre::VertexElement::getTypeSize(Ogre::VET_FLOAT2); /// Allocate vertex buffer of the requested number of vertices (vertexCount) /// and bytes per vertex (offset) Ogre::HardwareVertexBufferSharedPtr vbuf = Ogre::HardwareBufferManager::getSingleton().createVertexBuffer( offset, mMesh->sharedVertexData->vertexCount, Ogre::HardwareBuffer::HBU_STATIC_WRITE_ONLY); /// Upload the vertex data to the card vbuf->writeData(0, vbuf->getSizeInBytes(), vertices, true); /// Set vertex buffer binding so buffer 0 is bound to our vertex buffer Ogre::VertexBufferBinding* bind = mMesh->sharedVertexData->vertexBufferBinding; bind->setBinding(0, vbuf); /// Allocate index buffer of the requested number of vertices (ibufCount). Ogre::HardwareIndexBufferSharedPtr ibuf = Ogre::HardwareBufferManager::getSingleton(). createIndexBuffer( Ogre::HardwareIndexBuffer::IT_16BIT, indicesSize, Ogre::HardwareBuffer::HBU_STATIC_WRITE_ONLY); /// Upload the index data to the card. ibuf->writeData(0, ibuf->getSizeInBytes(), indices, true); /// Set parameters of the submesh. sub->useSharedVertices = true; sub->indexData->indexBuffer = ibuf; sub->indexData->indexCount = indicesSize; sub->indexData->indexStart = 0; sub->setMaterialName("Ocean2_Cg"); float xMin = vertices[0]; float yMin = vertices[1]; float zMin = vertices[2]; float xMax = vertices[0]; float yMax = vertices[1]; float zMax = vertices[2]; for (i = 0; i < verticesSize; i += 5) { if (vertices[i ] < xMin) xMin = vertices[i ]; else if (vertices[i ] > xMax) xMax = vertices[i ]; if (vertices[i + 1] < yMin) yMin = vertices[i + 1]; else if (vertices[i + 1] > yMax) yMax = vertices[i + 1]; if (vertices[i + 2] < zMin) zMin = vertices[i + 2]; else if (vertices[i + 2] > zMax) zMax = vertices[i + 2]; } /// Set bounding information (for culling). mMesh->_setBounds(Ogre::AxisAlignedBox(xMin, yMin, zMin, xMax, yMax, zMax)); mMesh->_setBoundingSphereRadius(1.0f); /// Notify Mesh object that it has been loaded. mMesh->load(); delete [] vertices; delete [] indices; }
Rocket::Core::CompiledGeometryHandle RocketInterface::CompileGeometry( Rocket::Core::Vertex* vertices, int numVertices, int* indices, int numIndices, Rocket::Core::TextureHandle texture) { RocketOgreGeometry* geometry = new RocketOgreGeometry(); geometry->texture = texture == 0 ? nullptr : reinterpret_cast<RocketOgreTexture*>(texture); geometry->renderOp.vertexData = new Ogre::VertexData(); geometry->renderOp.vertexData->vertexStart = 0; geometry->renderOp.vertexData->vertexCount = numVertices; geometry->renderOp.indexData = new Ogre::IndexData(); geometry->renderOp.indexData->indexStart = 0; geometry->renderOp.indexData->indexCount = numIndices; geometry->renderOp.operationType = Ogre::RenderOperation::OT_TRIANGLE_LIST; // Set up the vertex declaration Ogre::VertexDeclaration* vertexDecl = geometry->renderOp.vertexData->vertexDeclaration; size_t offset = 0; vertexDecl->addElement(0, offset, Ogre::VET_FLOAT2, Ogre::VES_POSITION); offset += Ogre::VertexElement::getTypeSize(Ogre::VET_FLOAT2); vertexDecl->addElement(0, offset, Ogre::VET_COLOUR, Ogre::VES_DIFFUSE); offset += Ogre::VertexElement::getTypeSize(Ogre::VET_COLOUR); vertexDecl->addElement(0, offset, Ogre::VET_FLOAT2, Ogre::VES_TEXTURE_COORDINATES); // Create the vertex buffer Ogre::HardwareVertexBufferSharedPtr vb = Ogre::HardwareBufferManager::getSingleton().createVertexBuffer( vertexDecl->getVertexSize(0), numVertices, Ogre::HardwareBuffer::HBU_STATIC_WRITE_ONLY); geometry->renderOp.vertexData->vertexBufferBinding->setBinding(0, vb); // Fill the vertex buffer RocketOgreVertex* vertexData = static_cast<RocketOgreVertex*>( vb->lock(0, vb->getSizeInBytes(), Ogre::HardwareBuffer::HBL_NORMAL)); for (int i = 0; i < numVertices; ++i) { vertexData[i].position.x = vertices[i].position.x; vertexData[i].position.y = vertices[i].position.y; vertexData[i].uv.x = vertices[i].tex_coord[0]; vertexData[i].uv.y = vertices[i].tex_coord[1]; // Calculate colour value Ogre::ColourValue diffuse( vertices[i].colour.red / 255.0f, vertices[i].colour.green / 255.0f, vertices[i].colour.blue / 255.0f, vertices[i].colour.alpha / 255.0f); // Scale colour by gamma value (2.2) diffuse.r = Pow(diffuse.r, 2.2f); diffuse.g = Pow(diffuse.g, 2.2f); diffuse.b = Pow(diffuse.b, 2.2f); diffuse.a = Pow(diffuse.a, 2.2f); mRenderSystem->convertColourValue(diffuse, &vertexData[i].colour); } vb->unlock(); // Create the index buffer Ogre::HardwareIndexBufferSharedPtr ib = Ogre::HardwareBufferManager::getSingleton().createIndexBuffer( Ogre::HardwareIndexBuffer::IT_32BIT, numIndices, Ogre::HardwareBuffer::HBU_STATIC_WRITE_ONLY); geometry->renderOp.indexData->indexBuffer = ib; geometry->renderOp.useIndexes = true; // Fill the index buffer void* indexData = ib->lock(0, ib->getSizeInBytes(), Ogre::HardwareBuffer::HBL_NORMAL); memcpy(indexData, indices, sizeof(unsigned int) * numIndices); ib->unlock(); return reinterpret_cast<Rocket::Core::CompiledGeometryHandle>(geometry); }