//-----------------------------------------------------------------------
MeshReadHelper::Face MeshReadHelper::getFace(size_t _subMeshIndex, size_t _faceIndex)
{
if(_subMeshIndex != mCurSubMeshInfoFi)
{
prepareFaces(_subMeshIndex);
}
Face face;
size_t indexInID = _faceIndex * 3 + mCurSubMeshInfoF->indexStart;
switch(mIndexType)
{
case HardwareIndexBuffer::IT_16BIT:
{
face.i[0] = ((uint16*) mIndexPtr)[indexInID + 0];
face.i[1] = ((uint16*) mIndexPtr)[indexInID + 1];
face.i[2] = ((uint16*) mIndexPtr)[indexInID + 2];
break;
}
case HardwareIndexBuffer::IT_32BIT:
{
face.i[0] = ((uint32*) mIndexPtr)[indexInID + 0];
face.i[1] = ((uint32*) mIndexPtr)[indexInID + 1];
face.i[2] = ((uint32*) mIndexPtr)[indexInID + 2];
break;
}
}
size_t ofs = mCurSubMeshInfoF->vertexStartInJoinedList - mCurSubMeshInfoF->vertexStart;
face.i[0] += ofs;
face.i[1] += ofs;
face.i[2] += ofs;
return face;
}
//-----------------------------------------------------------------------
const String& MeshReadHelper::getMaterialName(size_t _subMeshIndex)
{
if(_subMeshIndex != mCurSubMeshInfoFi)
{
prepareFaces(_subMeshIndex);
}
return mCurSubMeshInfoF->subMesh->getMaterialName();
}
//-----------------------------------------------------------------------
size_t MeshReadHelper::getNumFaces(size_t _subMeshIndex)
{
if(_subMeshIndex != mCurSubMeshInfoFi)
{
prepareFaces(_subMeshIndex);
}
return mCurSubMeshInfoF->indexCount / 3;
}
//-------------------------------------------------------------------------------------------------------
bool Exporter::processMesh(RawMesh& rawMesh, const char* fileName)
{
rawMesh_ = &rawMesh;
meshData_.reset(new(std::nothrow) Mesh::Data);
if(!meshData_)
{
std::cout << "error: not enough memory" << std::endl;
return false;
}
numVertices_ = rawMesh_->positions_.getSize();
meshData_->boundingBox = rawMesh_->boundingBox_;
boneIndices_.destroy();
boneWeights_.destroy();
vertices_.clear();
newToOldVertexMapping_.clear();
std::cout << "processing raw mesh..." << std::endl;
faces_ = rawMesh_->faces_;
if(faces_.getSize() != rawMesh_->faces_.getSize())
{
std::cout << "error: not enough memory" << std::endl;
return false;
}
std::cout << "merging faces..." << std::endl;
numVertices_ = mergeFaces(faces_, rawMesh_->normalFaces_, faces_, numVertices_);
if(numVertices_ == 0)
{
std::cout << "error: could not merge faces" << std::endl;
return false;
}
numVertices_ = mergeFaces(faces_, rawMesh_->textureFaces_, faces_, numVertices_);
if(numVertices_ == 0)
{
std::cout << "error: could not merge faces" << std::endl;
return false;
}
if(!rawMesh_->bones_.isEmpty())
{
std::cout << "reading bone indices and weights..." << std::endl;
if(!boneIndices_.create(numVertices_) || !boneWeights_.create(numVertices_))
{
std::cout << "error: not enough memory" << std::endl;
return false;
}
uint32_t numFaces = faces_.getSize();
for(uint32_t i = 0; i < numFaces; ++i)
{
const RawMesh::Face& face = rawMesh_->faces_[i];
for(uint8_t j = 0; j < 3; ++j)
{
uint32_t vertexIndex = faces_[i].indices[j];
boneIndices_[vertexIndex] = rawMesh_->boneIndices_[face.indices[j]];
boneWeights_[vertexIndex] = rawMesh_->boneWeights_[face.indices[j]];
}
}
}
std::cout << "computing tangent space..." << std::endl;
if(!computeTangentSpace())
{
std::cout << "error: broken mesh" << std::endl;
return false;
}
std::cout << "preparing vertex streams..." << std::endl;
if(!prepareVertexStreams())
{
std::cout << "error: not enough memory" << std::endl;
return false;
}
std::cout << "preparing faces..." << std::endl;
if(!prepareFaces())
{
std::cout << "error: not enough memory" << std::endl;
return false;
}
std::cout << "preparing subsets..." << std::endl;
if(!prepareSubsets())
{
std::cout << "error: not enough memory" << std::endl;
return false;
}
if(!rawMesh_->bones_.isEmpty())
{
std::cout << "preparing skeleton...";
auto& skeleton = meshData_->skeleton;
skeleton.reset(new(std::nothrow) Skeleton);
if(!skeleton)
{
std::cout << "error: not enough memory" << std::endl;
return false;
}
skeleton->getBones() = rawMesh_->bones_;
if(skeleton->getBones().getSize() != rawMesh_->bones_.getSize())
{
std::cout << "error: not enough memory" << std::endl;
return false;
}
}
std::cout << "writing mesh to the file..." << std::endl;
std::ofstream stream(fileName, std::ios_base::binary);
MeshManager meshManager;
if(!meshManager.writeMesh(stream, *meshData_))
{
std::cout << "error: could not write mesh to the file" << std::endl;
return false;
}
std::cout << "mesh has " << numVertices_;
std::cout << " vertices and " << faces_.getSize() << " faces" << std::endl;
return true;
}
void Game::run() {
// build and compile our shader program
Shader ourShader("basic.vert", "basic.frag");
// load the map
auto result = bsp.parse(mapName.c_str());
prepareFaces();
/////////////////////////////////////
glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS);
glEnable(GL_DEBUG_OUTPUT);
glDebugMessageCallback(openglCallbackFunction, nullptr);
GLuint VBO, VAO, EBO;
glGenVertexArrays(1, &VAO);
glGenBuffers(1, &VBO);
glGenBuffers(1, &EBO);
// Bind the Vertex Array Object first, then bind and set vertex buffer(s) and attribute pointer(s).
glBindVertexArray(VAO);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, EBO);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(unsigned int)*indexes.size(), &indexes[0], GL_STATIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, VBO);
glBufferData(GL_ARRAY_BUFFER, bsp.getVertexes().size() * sizeof(BSP_vertex), &bsp.getVertexes()[0], GL_STATIC_DRAW);
// Position attribute
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, sizeof(BSP_vertex), (GLvoid*)0);
glEnableVertexAttribArray(0);
// Color attribute
glVertexAttribPointer(1, 4, GL_BYTE, GL_FALSE, sizeof(BSP_vertex), (GLvoid*)((10 * sizeof(GL_FLOAT))));
glEnableVertexAttribArray(1);
// Texel attribute
glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, sizeof(BSP_vertex), (GLvoid*)((3 * sizeof(GL_FLOAT))));
glEnableVertexAttribArray(2);
// Texture array depth/id attribute
glVertexAttribIPointer(3, 1, GL_INT, sizeof(BSP_vertex), (GLvoid*)((4 * sizeof(GLbyte)) + (10 * sizeof(GL_FLOAT))));
glEnableVertexAttribArray(3);
// Lightmap array depth/id attribute
glVertexAttribIPointer(4, 1, GL_INT, sizeof(BSP_vertex), (GLvoid*)((1 * sizeof(GLint)) + (4 * sizeof(GLbyte)) + (10 * sizeof(GL_FLOAT))));
glEnableVertexAttribArray(4);
// Lightmap uv
glVertexAttribPointer(5, 2, GL_FLOAT, GL_FALSE, sizeof(BSP_vertex), (GLvoid*)(5 * sizeof(GL_FLOAT)));
glEnableVertexAttribArray(5);
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LESS);
//glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
glBindVertexArray(0); // Unbind VAO
glm::mat4 projection = camera.getProjection();
camera.setPosition(glm::vec3(0.0, 0.0, 40.0));
ourShader.Use();
auto texLocation = glGetUniformLocation(ourShader.Program, "_texture");
auto lmLocation = glGetUniformLocation(ourShader.Program, "_lightmap");
glUniform1i(texLocation, 0);
glUniform1i(lmLocation, 1);
assert(texLocation != -1, "texLocation uniform was optimized");
assert(lmLocation != -1, "lmLocation uniform was optimized");
while (!glfwWindowShouldClose(window))
{
deltaTime = glfwGetTime() - lastFrameTime;
lastFrameTime = glfwGetTime();
// Check if any events have been activiated (key pressed, mouse moved etc.) and call corresponding response functions
glfwPollEvents();
processInputs();
// Render
// Clear the colorbuffer
glClearColor(0.3f, 0.3f, 0.3f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glActiveTexture(GL_TEXTURE0 + 0);
glBindTexture(GL_TEXTURE_2D_ARRAY, bsp.getTextureHandle());
glActiveTexture(GL_TEXTURE0 + 1);
glBindTexture(GL_TEXTURE_2D_ARRAY, bsp.getLightmapHandle());
GLint modelLoc = glGetUniformLocation(ourShader.Program, "model");
GLint viewLoc = glGetUniformLocation(ourShader.Program, "view");
GLint projLoc = glGetUniformLocation(ourShader.Program, "projection");
GLint angleLoc = glGetUniformLocation(ourShader.Program, "angle");
glm::mat4 view;
camera.setDeltaTime(deltaTime);
view = camera.getView();
// Get their uniform location
glUniform1f(angleLoc, glfwGetTime());
glUniformMatrix4fv(viewLoc, 1, GL_FALSE, glm::value_ptr(view));
glUniformMatrix4fv(projLoc, 1, GL_FALSE, glm::value_ptr(projection));
glm::mat4 model = glm::mat4(1.0); // just identity
glUniformMatrix4fv(modelLoc, 1, GL_FALSE, glm::value_ptr(model));
glBindVertexArray(VAO);
glBindBuffer(GL_ARRAY_BUFFER, VBO);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, EBO);
glDrawElements(GL_TRIANGLES, indexes.size(), GL_UNSIGNED_INT, 0);
glBindVertexArray(0);
glfwSwapBuffers(window);
}
// Properly de-allocate all resources once they've outlived their purpose
glDeleteVertexArrays(1, &VAO);
glDeleteBuffers(1, &VBO);
glfwTerminate();
}
