TriangleSceneNode::TriangleSceneNode()
: m_verts_buffer(QOpenGLBuffer(QOpenGLBuffer::VertexBuffer))
, m_element_buffer(QOpenGLBuffer(QOpenGLBuffer::IndexBuffer))
{
GLfloat verts[] = {-.5f, -.5f, 0.f,
.5f, -.5f, 0.f,
0.f, .5f, 0.f};
m_verts_count = sizeof(verts)/sizeof(verts[0]);
GLuint elems[] = {0,1,2};
m_element_count = sizeof(elems)/sizeof(elems[0]);
m_vao.create();
m_vao.bind();
m_verts_buffer.create();
m_verts_buffer.setUsagePattern(QOpenGLBuffer::StaticDraw);
m_verts_buffer.bind();
m_verts_buffer.allocate(verts, sizeof(verts));
m_verts_buffer.release();
m_element_buffer.create();
m_element_buffer.setUsagePattern(QOpenGLBuffer::StaticDraw);
m_element_buffer.bind();
m_element_buffer.allocate(elems, sizeof(elems));
m_element_buffer.release();
m_vao.release();
m_verts = {-.5, -.5, 0,
0, .5, 0,
.5, -.5, 0};
m_program = std::unique_ptr<QOpenGLShaderProgram>(new QOpenGLShaderProgram());
m_program->addShaderFromSourceCode(QOpenGLShader::Vertex,
"attribute highp vec3 verts;\n"
"varying highp vec4 color;\n"
"uniform highp mat4 mvp;\n"
"void main() {"
"color = vec4(verts + vec3(.5,.5,1.0), 1.0);"
"gl_Position = mvp * vec4(verts, 1.0);"
"}\n");
m_program->addShaderFromSourceCode(QOpenGLShader::Fragment,
"varying highp vec4 color;\n"
"void main() {"
"gl_FragColor = vec4(1.0,1.0,1.0,1.0);"
"}\n");
m_program->link();
}
void PolygonalDrawable::createVAO()
{
m_vao.create();
m_vao.bind();
VertexReuse::optimize(
m_vertices,
m_normals,
m_texcs,
m_indices);
t_vec3s vertices;
t_vec3s normals;
delete m_he;
m_he = new HalfEdgeStructure(*this);
m_he->calculatePerVertexNormals(180.0f);
HalfEdgeStructure::t_faces::const_iterator i = m_he->faces().begin();
const HalfEdgeStructure::t_faces::const_iterator iEnd = m_he->faces().end();
for(; i != iEnd; ++i)
{
const HalfEdgeStructure::HalfEdge * const he0 = i->he->prev;
const HalfEdgeStructure::HalfEdge * const he1 = i->he;
const HalfEdgeStructure::HalfEdge * const he2 = i->he->next;
normals.push_back(he0->normal);
vertices.push_back(*(he0->vertex));
normals.push_back(he1->normal);
vertices.push_back(*(he1->vertex));
normals.push_back(he2->normal);
vertices.push_back(*(he2->vertex));
}
m_vertices = vertices;
m_normals = normals;
m_vertexBuffer = QOpenGLBuffer();
m_vertexBuffer.create();
m_vertexBuffer.bind();
m_vertexBuffer.setUsagePattern(QOpenGLBuffer::StaticDraw);
m_vertexBuffer.allocate(m_vertices.constData(), m_vertices.size() * sizeof(QVector3D));
m_normalBuffer = QOpenGLBuffer();
m_normalBuffer.create();
m_normalBuffer.bind();
m_normalBuffer.setUsagePattern(QOpenGLBuffer::StaticDraw);
m_normalBuffer.allocate(m_normals.constData(), m_normals.size() * sizeof(QVector3D));
m_texcoordBuffer.create();
m_texcoordBuffer.bind();
m_texcoordBuffer.setUsagePattern(QOpenGLBuffer::StaticDraw);
m_texcoordBuffer.allocate(m_texcs.constData(), m_texcs.size() * sizeof(QVector2D));
m_indexBuffer.create();
m_indexBuffer.bind();
m_indexBuffer.setUsagePattern(QOpenGLBuffer::StaticDraw);
m_indexBuffer.allocate(m_indices.constData(), m_indices.size() * sizeof(unsigned int));
}
/**
\brief Called when the opengl context is good
*/
void cwTile::initialize() {
TriangleIndexBuffer = QOpenGLBuffer(QOpenGLBuffer::IndexBuffer);
TriangleVertexBuffer = QOpenGLBuffer(QOpenGLBuffer::VertexBuffer);
TriangleIndexBuffer.create();
TriangleVertexBuffer.create();
vVertex = Program->attributeLocation("vVertex");
}
//===================================================================
Mesh::Mesh(QObject *parent) : QObject(parent),
mDebugView(false), mMode(GL_TRIANGLES), mTexture(0), mTextureImage(0), mOpacity(1)
{
// ctor
mShaderProgram = new QOpenGLShaderProgram(this);
mVertexBuffer = QOpenGLBuffer(QOpenGLBuffer::VertexBuffer);
mIndexBuffer = QOpenGLBuffer(QOpenGLBuffer::IndexBuffer);
mTexture = new QOpenGLTexture(QOpenGLTexture::Target2D);
resetTransform();
addMaterial(Material());
}
void PolygonalDrawable::createVAO(QOpenGLShaderProgram * program)
{
m_vao.create();
m_vao.bind();
m_vertexBuffer = QOpenGLBuffer();
m_vertexBuffer.create();
m_vertexBuffer.bind();
m_vertexBuffer.setUsagePattern( QOpenGLBuffer::StaticDraw );
m_vertexBuffer.allocate(m_vertices.constData(), m_vertices.size() * sizeof(QVector3D));
program->setAttributeBuffer("in_vertex", GL_FLOAT, 0, 3, 3 * sizeof(float));
if (m_vertices.size())
{
program->enableAttributeArray("in_vertex");
}
m_normalBuffer = QOpenGLBuffer();
m_normalBuffer.create();
m_normalBuffer.bind();
m_normalBuffer.setUsagePattern( QOpenGLBuffer::StaticDraw );
m_normalBuffer.allocate(m_normals.constData(), m_normals.size() * sizeof(QVector3D));
program->setAttributeBuffer("in_normal", GL_FLOAT, 0, 3, 3 * sizeof(float));
if (m_normals.size())
{
program->enableAttributeArray("in_normal");
}
m_texcoordBuffer.create();
m_texcoordBuffer.bind();
m_texcoordBuffer.setUsagePattern( QOpenGLBuffer::StaticDraw );
m_texcoordBuffer.allocate(m_texcs.constData(), m_texcs.size() * sizeof(QVector2D));
program->setAttributeBuffer("in_texcoord", GL_FLOAT, 0, 2, 2 * sizeof(float));
if (m_texcs.size())
{
program->enableAttributeArray("in_texcoord");
}
m_indexBuffer.create();
m_indexBuffer.bind();
m_indexBuffer.setUsagePattern( QOpenGLBuffer::StaticDraw );
m_indexBuffer.allocate(m_indices.constData(), m_indices.size() * sizeof(unsigned int));
}
void Grid::initBuffer()
{
makeGrid(10, 1);
vbo = QOpenGLBuffer(QOpenGLBuffer::VertexBuffer);
vbo.create();
vbo.bind();
vbo.allocate(&VertexData[0], 84 * sizeof(QVector3D));
vbo.release();
}
//===================================================================
Mesh::Mesh(const Mesh &mesh)
{
// copy ctor
mShaderProgram = new QOpenGLShaderProgram(this);
mDebugView = mesh.mDebugView;
mIndexBuffer = QOpenGLBuffer(mesh.mIndexBuffer);
mMode = mesh.mMode;
mTextureImage = mesh.mTextureImage;
setTextureImage(mTextureImage);
for (int index = 0; index < mesh.mVertices.count(); index++)
mVertices.append(mesh.vertices().at(index)) ;
addMaterial(Material());
mOpacity = mesh.mOpacity;
}
void Window::initializeGL()
{
initializeOpenGLFunctions();
connect(context(), SIGNAL(aboutToBeDestroyed()), this, SLOT(teardownGL()), Qt::DirectConnection);
printVersionInformation();
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
//Loading, compiling and linking shaders.
shaderProgram = new QOpenGLShaderProgram();
shaderProgram->addShaderFromSourceFile(QOpenGLShader::Vertex, ".\\simple.vert");
shaderProgram->addShaderFromSourceFile(QOpenGLShader::Fragment, ".\\simple.frag");
shaderProgram->link();
shaderProgram->bind();
//Creating the VAO
vertexArrayObject.create();
vertexArrayObject.bind();
//We now need to combine the data of out mesh and our interator mesh
vector<Vertex> combinedVertexBuffer;
combinedVertexBuffer.reserve(mesh->getVertexVector().size() +
interatorMesh->getVertexVector().size());
combinedVertexBuffer.insert(combinedVertexBuffer.end(), mesh->
getVertexVector().begin(), mesh->getVertexVector().end());
combinedVertexBuffer.insert(combinedVertexBuffer.end(), interatorMesh->
getVertexVector().begin(), interatorMesh->getVertexVector().end());
//Index buffer
vector<unsigned int> combinedIndexBuffer;
combinedIndexBuffer.reserve(mesh->getIndexVector().size() + interatorMesh->
getIndexVector().size());
combinedIndexBuffer.insert(combinedIndexBuffer.end(), mesh->
getIndexVector().begin(), mesh->getIndexVector().end());
unsigned int vertexVectorSize = static_cast<unsigned int>(mesh->
getVertexVector().size());
for (auto index : interatorMesh->getIndexVector()) {
combinedIndexBuffer.push_back(index + vertexVectorSize);
}
//Creating the VBO for the mesh
vertexBuffer.create();
vertexBuffer.bind();
vertexBuffer.setUsagePattern(QOpenGLBuffer::DynamicDraw);
vertexBuffer.allocate(combinedVertexBuffer.data(),
static_cast<int>(combinedVertexBuffer.size() * sizeof(Vertex)));
//Creating IBO for the mesh
indexBuffer = QOpenGLBuffer(QOpenGLBuffer::IndexBuffer);
indexBuffer.create();
indexBuffer.bind();
indexBuffer.setUsagePattern(QOpenGLBuffer::DynamicDraw);
indexBuffer.allocate(combinedIndexBuffer.data(),
static_cast<int>(combinedIndexBuffer.size() * sizeof(unsigned int)));
//Enabling attribute arrays for vertex, normal and color data.
shaderProgram->enableAttributeArray(0);
shaderProgram->enableAttributeArray(1);
shaderProgram->enableAttributeArray(2);
shaderProgram->setAttributeBuffer(0, GL_FLOAT, Vertex::positionOffset(), Vertex::PositionTupleSize, Vertex::stride());
shaderProgram->setAttributeBuffer(1, GL_FLOAT, Vertex::colorOffset(), Vertex::ColorTupleSize, Vertex::stride());
shaderProgram->setAttributeBuffer(2, GL_FLOAT, Vertex::normalOffset(), Vertex::NormalTupleSize, Vertex::stride());
vertexArrayObject.release();
vertexBuffer.release();
indexBuffer.release();
shaderProgram->release();
//Setting up model, view and projection matrices.
mvpSetup();
//Creating interator ray
interator = new Ray(vec3(0.0f, 0.0f, 0.0f), vec3(0.0f, 0.0f, 1.0f));
//Setting up the collision detector
collisionDetector.setMesh(mesh);
collisionDetector.setRay(interator);
//Initializing haptic device
if (hapticsEnabled) {
haptic.initializeHL();
haptic.updateHapticWorkspace();
haptic.setInterator(interator);
haptic.setCollisionDetector(&collisionDetector);
haptic.setCollisionPath(&path);
haptic.setMesh(mesh);
haptic.setShaderProgram(shaderProgram);
haptic.setVAO(&vertexArrayObject);
handle = hdScheduleAsynchronous(HapticInterface::mainHapticCallback,
&haptic, HD_MAX_SCHEDULER_PRIORITY);
hdStartScheduler();
}
}
ParticleSceneNode::ParticleSceneNode()
: m_program(new QOpenGLShaderProgram)
, m_square_buffer(QOpenGLBuffer(QOpenGLBuffer::VertexBuffer))
, m_particle_verts_buffer(QOpenGLBuffer(QOpenGLBuffer::VertexBuffer))
, m_tex_uv_buffer(QOpenGLBuffer(QOpenGLBuffer::VertexBuffer))
, m_particle_system(new ParticleSystem)
{
const float psize = .03f;
//vertex data
GLfloat square_verts[] = {-psize, -psize, 0.0,
-psize, psize, 0.0,
psize, -psize, 0.0,
psize, psize, 0.0};
GLfloat particle_verts[] = {-.5f, -.5f, 0.0f,
.5f, -.5f, 0.0f,
.5f, .5f, 0.0f,
-.5f, .5f, 0.0f,
-.5f, -.5f, 0.5f,
.5f, -.5f, 0.5f,
.5f, .5f, 0.5f,
-.5f, .5f, 0.5f,};
GLfloat tex_uv[] = {0.0f, 1.0f,
0.0f, 0.0f,
1.0f, 1.0f,
1.0f, 0.0f};
m_particle_verts_count = sizeof(particle_verts)/sizeof(particle_verts[0])/3;
m_billboard_verts_count = sizeof(square_verts)/sizeof(square_verts[0])/3;
m_tex_uv_count = sizeof(tex_uv)/sizeof(tex_uv)/3;
//Texture
std::vector<uint8_t> &particle_texture = tex_gen::particle_texture_1();
int tex_size = tex_gen::particle_tex_1_size();
qDebug() << "tx" << particle_texture[100];
//glActiveTexture(GL_TEXTURE0);
glGenTextures(1, &m_texture_id);
glBindTexture(GL_TEXTURE_2D, m_texture_id);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glGenerateMipmap(GL_TEXTURE_2D);
glTexImage2D(GL_TEXTURE_2D,
0,
GL_RGB,
tex_size, //+2
tex_size, //+2
0,
GL_RGB,
GL_UNSIGNED_BYTE,
particle_texture.data());
//Initialize buffers
m_vao.create();
m_vao.bind();
m_square_buffer.create();
m_square_buffer.setUsagePattern(QOpenGLBuffer::StaticDraw);
m_square_buffer.bind();
m_square_buffer.allocate(square_verts, sizeof(square_verts));
m_square_buffer.release();
m_particle_verts_buffer.create();
m_particle_verts_buffer.setUsagePattern(QOpenGLBuffer::DynamicDraw);
m_particle_verts_buffer.bind();
m_particle_verts_buffer.allocate(particle_verts, sizeof(particle_verts));
m_particle_verts_buffer.release();
m_tex_uv_buffer.create();
m_tex_uv_buffer.setUsagePattern(QOpenGLBuffer::StaticDraw);
m_tex_uv_buffer.bind();
m_tex_uv_buffer.allocate(tex_uv, sizeof(tex_uv));
m_tex_uv_buffer.release();
m_vao.release();
//initialize shader program
m_program->addShaderFromSourceFile(QOpenGLShader::Vertex,
":/shaders/particle1.vsh");
m_program->addShaderFromSourceFile(QOpenGLShader::Fragment,
":/shaders/particle1.fsh");
m_program->link();
m_loc_stride = 0;
m_loc_offset = 0;
m_loc_count = 3;
}
void Window::initializeGL() {
// Initialize OpenGL Backend
initializeOpenGLFunctions();
//This is equivalent to register an IDLE function callback for animation
//We don't control the frame rate is as fast as the system is available
//Maybe using the vsync
connect(this, SIGNAL(frameSwapped()), this, SLOT(update()));
printVersionInformation();
//Global GL configurations
glEnable(GL_CULL_FACE);
glCullFace(GL_BACK);
glClearColor(0.15f, 0.15f, 0.15f, 1.0f);
// Application-specific initialization
{
// Create Shader (Do not release until VAO is created)
m_program_ptr = new QOpenGLShaderProgram();
m_program_ptr->addShaderFromSourceFile(QOpenGLShader::Vertex, "Resources/shaders/simpleVertex.glsl");
m_program_ptr->addShaderFromSourceFile(QOpenGLShader::Fragment, "Resources/shaders/simpleFragment.glsl");
m_program_ptr->link();
m_program_ptr->bind();
//Fill the arrays with date in CPU side
createGeomerty();
// Create Vertex Array Object (Remember this needs to be done BEFORE binding the vertex)
m_vao.create();
m_vao.bind();
// Create Buffers (Do not release until VAO is created)
m_vertex_buffer = QOpenGLBuffer(QOpenGLBuffer::VertexBuffer);
m_vertex_buffer.create();
m_vertex_buffer.bind();
m_vertex_buffer.setUsagePattern(QOpenGLBuffer::StaticDraw);
m_vertex_buffer.allocate(m_vertices.constData(), m_vertices.size() * sizeof(Vertex));
m_index_buffer = QOpenGLBuffer(QOpenGLBuffer::IndexBuffer);
m_index_buffer.create();
m_index_buffer.bind();
m_index_buffer.setUsagePattern(QOpenGLBuffer::StaticDraw);
m_index_buffer.allocate(m_indexes.constData(), m_indexes.size() * sizeof(unsigned int));
m_program_ptr->enableAttributeArray(0);
m_program_ptr->enableAttributeArray(1);
m_program_ptr->setAttributeBuffer(0, GL_FLOAT, Vertex::positionOffset(), Vertex::PositionTupleSize, Vertex::stride());
m_program_ptr->setAttributeBuffer(1, GL_FLOAT, Vertex::colorOffset(), Vertex::ColorTupleSize, Vertex::stride());
// Release (unbind) all
m_vao.release();
m_index_buffer.release();
m_index_buffer.release();
m_program_ptr->release();
//Once we have a copy in the GPU there is no need to keep a CPU copy (unless yopu want to)
m_indexes.clear();
m_vertices.clear();
}
//Program main logic
//Camera start with no rotation
m_new_rotation = m_base_rotation = QQuaternion(1.0f, QVector3D(0.0f, 0.0f, 0.0f));
m_mouse_draging = false;
m_fovy_y = 45.0f;
}