void EarthScene::render()
{
// Clear the buffer with the current clearing color
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
m_sphere->material()->bind();
QOpenGLShaderProgramPtr shader = m_sphere->material()->shader();
// Set the usual view/projection matrices
QMatrix4x4 modelViewMatrix = m_camera->viewMatrix() * m_modelMatrix;
QMatrix3x3 normalMatrix = modelViewMatrix.normalMatrix();
QMatrix4x4 mvp = m_camera->viewProjectionMatrix() * m_modelMatrix;
shader->setUniformValue( "modelViewMatrix", modelViewMatrix );
shader->setUniformValue( "normalMatrix", normalMatrix );
shader->setUniformValue( "projectionMatrix", m_camera->projectionMatrix() );
shader->setUniformValue( "mvp", mvp );
// Set the lighting parameters - specify the direction in world coordinates
// and transform to eye space as the shader expects
QVector4D worldLightDirection( 4.0f, 2.0f, 1.5f, 0.0f );
QVector4D eyeLightDirection = m_camera->viewMatrix() * worldLightDirection;
shader->setUniformValue( "light.position", eyeLightDirection );
shader->setUniformValue( "light.intensity", QVector3D( 1.0f, 1.0f, 1.0f ) );
// Set the material properties
shader->setUniformValue( "material.ka", QVector3D( 0.01f, 0.01f, 0.01f ) );
shader->setUniformValue( "material.kd", QVector3D( 1.0f, 1.0f, 1.0f ) );
shader->setUniformValue( "material.ks", QVector3D( 0.6f, 0.6f, 0.6f ) );
shader->setUniformValue( "material.shininess", 5.0f );
// Let the mesh setup the remainder of its state and draw itself
m_sphere->render();
}
void SatHorizon::render(QMatrix4x4 projection, float distance, QQuaternion quat, QVector3D posnorm, float alt, QColor rendercolor)
{
float radius = sqrt( alt * alt - 1 ) / alt;
float theta = acos(QVector3D::dotProduct(QVector3D(0,0,1), posnorm));
QVector3D vecnorm = QVector3D::crossProduct(QVector3D(0,0,1), posnorm);
vecnorm.normalize();
createCircleBuffer(radius, SEGMENTS);
QMatrix4x4 modelview;
modelview.translate(0.0, 0.0, distance);
modelview.rotate(quat);
modelview.translate(posnorm * (1/alt) * (alt > 1.5 ? 1.0015 : 1.0001));
modelview.rotate(theta * 180.0f/ PI, vecnorm );
posBuf.bind();
posBuf.write(0, vertexData, SEGMENTS * sizeof(QVector3D));
posBuf.release();
program->bind();
program->setUniformValue("MVP", projection * modelview);
QMatrix3x3 norm = modelview.normalMatrix();
program->setUniformValue("NormalMatrix", norm);
program->setUniformValue("outcolor", QVector4D(rendercolor.redF(), rendercolor.greenF(), rendercolor.blueF(), 1.0f));
QOpenGLVertexArrayObject::Binder vaoBinder(&vao);
glDrawArrays(GL_LINE_LOOP, 0, SEGMENTS);
}
void Object::display(int stage)
{
if (material == NULL)
{
return;
}
if (stage == material->visibleStage)
{
QMatrix4x4 modelview = glContext->view * transform.GetModelMatrix();
QMatrix3x3 norm = modelview.normalMatrix();
material->PreRender(modelview, norm);
Render();
material->PostRender();
}
}
void CObject::draw(const CMVP* p_camera, QList<CLight*>* p_lights, QVector2D p_biasVP){
float mvp[16];
float mv[16];
float mvi[9];
const QMatrix4x4 camView = p_camera->viewMatrix();
const QMatrix4x4 camProj = p_camera->projMatrix();
const QMatrix4x4 modelView = camView * modelMatrix();
const QMatrix4x4 modelViewProj = camProj * modelView;
const CLight* light;
p_camera->setViewPort(p_biasVP);
this->convertMatrix(modelView, mv);
this->convertMatrix(modelView.normalMatrix(), mvi);
this->convertMatrix(modelViewProj, mvp);
glVertexAttribPointer( 0, 3, GL_FLOAT, GL_FALSE, 0, CVA::vertices() );
glVertexAttribPointer( 1, 2, GL_FLOAT, GL_FALSE, 0, CVA::textures() );
glVertexAttribPointer( 2, 3, GL_FLOAT, GL_FALSE, 0, CVA::normals() );
CShaderInterface::sendUniformMatrix4fv("mvp", 1, GL_TRUE, mvp);
CShaderInterface::sendUniformMatrix4fv("mv", 1, GL_TRUE, mv);
CShaderInterface::sendUniformMatrix3fv("mvi", 1, GL_TRUE, mvi);
order(modelViewProj);
CVA::enable();
if(m_mat != NULL)
m_mat->sendToProgram();
if(p_lights == NULL)
drawSub();
else{
for(int a = 0; a < p_lights->size(); a++){
light = p_lights->at(a);
if(p_lights->at(a)->enabled()){
light->sendToProgram(p_camera, m_modelMatrix);
drawSub();
}
}
}
CVA::disable();
}
void TriangleWindow::paintGL()
{
static unsigned cnt;
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
QMatrix4x4 model;
model.rotate(cnt%360, 1,0,0);
model.rotate(45, 0,0,1);
QMatrix4x4 mv = m_view * model;
m_pgm.bind();
m_pgm.setUniformValue("modelViewMatrix", mv);
m_pgm.setUniformValue("normalMatrix", mv.normalMatrix());
m_pgm.setUniformValue("projectionMatrix", m_projection);
m_vao.bind();
glDrawElements(GL_TRIANGLES, m_cnt, GL_UNSIGNED_BYTE, 0);
renderNow();
++cnt;
}
void paintGL()
{
static unsigned cnt;
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, m_tex);
QMatrix4x4 model;
model.rotate(cnt%360, 1,0,0);
model.rotate(45, 0,0,1);
QMatrix4x4 mv = m_view * model;
m_pgm.bind();
m_pgm.setUniformValue("modelViewMatrix", mv);
m_pgm.setUniformValue("normalMatrix", mv.normalMatrix());
m_pgm.setUniformValue("projectionMatrix", m_projection);
m_vao.bind();
glDrawElements(GL_TRIANGLES, m_cnt, GL_UNSIGNED_BYTE, 0);
update();
++cnt;
}
void QVRMinimalExample::render(QVRWindow* /* w */,
const QVRRenderContext& context, int viewPass,
unsigned int texture)
{
// Set up framebuffer object to render into
GLint width, height;
glBindTexture(GL_TEXTURE_2D, texture);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, &width);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_HEIGHT, &height);
glBindTexture(GL_TEXTURE_2D, _fboDepthTex);
glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, width, height,
0, GL_DEPTH_COMPONENT, GL_FLOAT, NULL);
glBindFramebuffer(GL_FRAMEBUFFER, _fbo);
glFramebufferTexture(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, texture, 0);
// Set up view
glViewport(0, 0, width, height);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
QMatrix4x4 projectionMatrix = context.frustum(viewPass).toMatrix4x4();
QMatrix4x4 viewMatrix = context.viewMatrix(viewPass);
// Set up shader program
glUseProgram(_prg.programId());
_prg.setUniformValue("projection_matrix", projectionMatrix);
glEnable(GL_DEPTH_TEST);
// Render
QMatrix4x4 modelMatrix;
modelMatrix.translate(0.0f, 0.0f, -15.0f);
modelMatrix.rotate(_rotationAngle, 1.0f, 0.5f, 0.0f);
QMatrix4x4 modelViewMatrix = viewMatrix * modelMatrix;
_prg.setUniformValue("modelview_matrix", modelViewMatrix);
_prg.setUniformValue("normal_matrix", modelViewMatrix.normalMatrix());
glBindVertexArray(_vao);
glDrawElements(GL_TRIANGLES, _vaoIndices, GL_UNSIGNED_INT, 0);
}
void TApplication::RenderToFBO() {
Fbo->bind();
glEnable(GL_DEPTH_TEST);
glEnable(GL_MULTISAMPLE);
Shader.bind();
glViewport(0, 0, WINDOW_WIDTH, WINDOW_HEIGHT);
glClearColor(0.0, 0.0, 0.0, 0.0);
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
QMatrix4x4 view;
view.lookAt(QVector3D(0.0, 0.0, 6.0), QVector3D(0.0, 0.0, 0.0), QVector3D(0.0, 1.0, 0.0));
QMatrix4x4 projection;
projection.perspective(45.0f, float(WINDOW_WIDTH) / float(WINDOW_HEIGHT), 0.1f, 10.0f);
Shader.setUniformValue("projection", projection);
Shader.setUniformValue("view", view);
Shader.setUniformValue("lightIntensities", QVector3D(1.0, 1.0, 1.0));
Shader.setUniformValue("lightPosition", QVector3D(-30.0, 30.0, 30.0));
QMatrix4x4 model;
model.translate(0, 0, 0.0);
model.rotate(AngleX, 1.0, 0.0, 0.0);
model.rotate(AngleY, 0.0, 1.0, 0.0);
model.rotate(AngleZ, 0.0, 0.0, 1.0);
model.scale(0.42);
QMatrix3x3 normalMatrix = model.normalMatrix();
Shader.setUniformValue("model", model);
Shader.setUniformValue("normalMatrix", normalMatrix);
VertexBuff->bind();
GLint attribute;
GLint offset = 0;
attribute = Shader.attributeLocation("gl_Vertex");
Shader.enableAttributeArray(attribute);
Shader.setAttributeBuffer(attribute, GL_FLOAT, offset, 3, sizeof(TVertex));
offset += sizeof(QVector3D);
attribute = Shader.attributeLocation("gl_Normal");
Shader.enableAttributeArray(attribute);
Shader.setAttributeBuffer(attribute, GL_FLOAT, offset, 3, sizeof(TVertex));
offset += sizeof(QVector3D);
attribute = Shader.attributeLocation("vertTexCoord");
Shader.enableAttributeArray(attribute);
Shader.setAttributeBuffer(attribute, GL_FLOAT, offset, 2, sizeof(TVertex));
offset += sizeof(QVector2D);
attribute = Shader.attributeLocation("tangent");
Shader.enableAttributeArray(attribute);
Shader.setAttributeBuffer(attribute, GL_FLOAT, offset, 3, sizeof(TVertex));
offset += sizeof(QVector3D);
attribute = Shader.attributeLocation("bitangent");
Shader.enableAttributeArray(attribute);
Shader.setAttributeBuffer(attribute, GL_FLOAT, offset, 3, sizeof(TVertex));
offset += sizeof(QVector3D);
VertexBuff->release();
Texture->bind(0, QOpenGLTexture::ResetTextureUnit);
Shader.setUniformValue("texture", 0);
NormalMap->bind(1, QOpenGLTexture::ResetTextureUnit);
Shader.setUniformValue("normalMap", 1);
glDrawArrays(GL_TRIANGLES, 0, 3 * ObjectSize);
Shader.disableAttributeArray("gl_Vertex");
Shader.disableAttributeArray("gl_Normal");
Shader.disableAttributeArray("vertTexCoord");
Shader.disableAttributeArray("tangent");
Shader.disableAttributeArray("bitangent");
Texture->release(0, QOpenGLTexture::ResetTextureUnit);
NormalMap->release(1, QOpenGLTexture::ResetTextureUnit);
Shader.disableAttributeArray("coord2d");
Shader.disableAttributeArray("v_color");
Shader.release();
/*
/// DEBUG INFO
QMatrix4x4 modelView = view * model;
glMatrixMode(GL_PROJECTION);
glLoadMatrixf(projection.data());
glMatrixMode(GL_MODELVIEW);
glLoadMatrixf(modelView.data());
// glDisable(GL_DEPTH_TEST);
glColor3f(1, 1, 1);
glBegin(GL_LINES);
for (size_t i = 0; i < Obj.size(); i += 3) {
const TVertex& v1 = Obj[i];
const TVertex& v2 = Obj[i + 1];
const TVertex& v3 = Obj[i + 2];
glVertex3f(v1.Position.x(), v1.Position.y(), v1.Position.z());
glVertex3f(v2.Position.x(), v2.Position.y(), v2.Position.z());
glVertex3f(v1.Position.x(), v1.Position.y(), v1.Position.z());
glVertex3f(v3.Position.x(), v3.Position.y(), v3.Position.z());
glVertex3f(v2.Position.x(), v2.Position.y(), v2.Position.z());
glVertex3f(v3.Position.x(), v3.Position.y(), v3.Position.z());
}
glEnd();
// normals
glColor3f(0,0,1);
glBegin(GL_LINES);
for (size_t i = 0; i < Obj.size(); ++i) {
const TVertex& v = Obj[i];
QVector3D p = v.Position;
p *= 1.02;
glVertex3f(p.x(), p.y(), p.z());
QVector3D n = v.Normal.normalized();
p += n * 0.8;
glVertex3f(p.x(), p.y(), p.z());
}
glEnd();
// tangent
glColor3f(1,0,0);
glBegin(GL_LINES);
for (size_t i = 0; i < Obj.size(); ++i) {
const TVertex& v = Obj[i];
QVector3D p = v.Position;
p *= 1.02;
glVertex3f(p.x(), p.y(), p.z());
QVector3D n = v.Tangent.normalized();
p += n * 0.8;
glVertex3f(p.x(), p.y(), p.z());
}
glEnd();
// bitangent
glColor3f(0,1,0);
glBegin(GL_LINES);
for (size_t i = 0; i < Obj.size(); ++i) {
const TVertex& v = Obj[i];
QVector3D p = v.Position;
p *= 1.02;
glVertex3f(p.x(), p.y(), p.z());
QVector3D n = v.Bitangent.normalized();
p += n * 0.3;
glVertex3f(p.x(), p.y(), p.z());
}
glEnd();
*/
Fbo->release();
}
void GLWidget::paintMesh()
{
QMatrix4x4 mMatrix;
QMatrix4x4 vMatrix;
QMatrix4x4 cameraTransformation;
cameraTransformation.rotate(alpha, 0, 1, 0);
cameraTransformation.rotate(beta, 1, 0, 0);
QVector3D cameraPosition = cameraTransformation * QVector3D(0, 0, distance);
QVector3D cameraUpDirection = cameraTransformation * QVector3D(0, 1, 0);
vMatrix.lookAt(cameraPosition, lastCenterPosition, cameraUpDirection);
mMatrix.setToIdentity();
QMatrix4x4 mvMatrix;
mvMatrix = vMatrix * mMatrix;
QMatrix3x3 normalMatrix;
normalMatrix = mvMatrix.normalMatrix();
QMatrix4x4 lightTransformation;
lightTransformation.rotate(lightAngle, 0, 1, 0);
QVector3D lightPosition = lightTransformation * QVector3D(0, 10, 10);
shaderProgram.bind();
shaderProgram.setUniformValue("mvpMatrix", pMatrix * mvMatrix);
shaderProgram.setUniformValue("mvMatrix", mvMatrix);
shaderProgram.setUniformValue("normalMatrix", normalMatrix);
shaderProgram.setUniformValue("lightPosition", vMatrix * lightPosition);
shaderProgram.setUniformValue("ambientColor", QColor(32, 32, 32));
shaderProgram.setUniformValue("diffuseColor", QColor(128, 128, 128));
shaderProgram.setUniformValue("specularColor", QColor(255, 255, 255));
shaderProgram.setUniformValue("ambientReflection", (GLfloat) 1.0);
shaderProgram.setUniformValue("diffuseReflection", (GLfloat) 1.0);
shaderProgram.setUniformValue("specularReflection", (GLfloat) 1.0);
shaderProgram.setUniformValue("shininess", (GLfloat) 100.0);
glPointSize(INITIAL_POINT_SIZE);
renderGrid();
renderMesh(mode);
shaderProgram.release();
mMatrix.setToIdentity();
mMatrix.translate(lightPosition);
mMatrix.rotate(lightAngle, 0, 1, 0);
mMatrix.rotate(45, 1, 0, 0);
// mMatrix.scale(0.1);
coloringShaderProgram.bind();
coloringShaderProgram.setUniformValue("mvpMatrix", pMatrix * vMatrix * mMatrix);
coloringShaderProgram.setAttributeArray("vertex", lightSource.getSpotlightVertices().constData());
coloringShaderProgram.enableAttributeArray("vertex");
coloringShaderProgram.setAttributeArray("color", lightSource.getSpotlightColors().constData());
coloringShaderProgram.enableAttributeArray("color");
glDrawArrays(GL_TRIANGLES, 0, lightSource.getSpotlightVertices().size());
coloringShaderProgram.disableAttributeArray("vertex");
coloringShaderProgram.disableAttributeArray("color");
coloringShaderProgram.release();
}
void NormalMapScene::render()
{
//dumpTextureUnitConfiguration();
// Enable depth buffer writes (QQ2 disables them)
glDepthMask( true );
// Clear the buffer with the current clearing color
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
m_mesh->material()->bind();
QOpenGLShaderProgramPtr shader = m_mesh->material()->shader();
{
QMutexLocker locker( &m_mutex );
// Set the usual view/projection matrices
QMatrix4x4 modelViewMatrix = m_camera->viewMatrix() * m_modelMatrix;
QMatrix3x3 normalMatrix = modelViewMatrix.normalMatrix();
QMatrix4x4 mvp = m_camera->viewProjectionMatrix() * m_modelMatrix;
shader->setUniformValue( "modelViewMatrix", modelViewMatrix );
shader->setUniformValue( "normalMatrix", normalMatrix );
shader->setUniformValue( "projectionMatrix", m_camera->projectionMatrix() );
shader->setUniformValue( "mvp", mvp );
}
// Set the lighting parameters
shader->setUniformValue( "light.position", QVector4D( 0.0f, 0.0f, 0.0f, 1.0f ) );
shader->setUniformValue( "light.intensity", QVector3D( 1.0f, 1.0f, 1.0f ) );
// Set the material properties
shader->setUniformValue( "material.Ka", QVector3D( 0.1f, 0.1f, 0.1f ) );
shader->setUniformValue( "material.Kd", QVector3D( 0.9f, 0.9f, 0.9f ) );
shader->setUniformValue( "material.Ks", QVector3D( 0.2f, 0.2f, 0.2f ) );
shader->setUniformValue( "material.shininess", 20.0f );
// Let the mesh setup the remainder of its state and draw itself
#if !defined(Q_OS_MAC)
m_mesh->render();
#else
glPushClientAttrib( GL_CLIENT_VERTEX_ARRAY_BIT );
m_mesh->bindBuffers();
m_mesh->render();
glPopClientAttrib();
#endif
// Unbind shader
shader->release();
// Restore texture unit state
// - remove sampler objects
// - set active texture unit back to the first unit
#if !defined(Q_OS_MAC)
m_funcs->glBindSampler( 0, 0 );
m_funcs->glBindSampler( 1, 0 );
#endif
m_funcs->glActiveTexture( GL_TEXTURE0 );
//dumpTextureUnitConfiguration();
}
//! [3]
void GlWidget::paintGL()
{
//! [3]
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
QMatrix4x4 mMatrix;
QMatrix4x4 vMatrix;
QMatrix4x4 cameraTransformation;
cameraTransformation.rotate(alpha, 0, 1, 0);
cameraTransformation.rotate(beta, 1, 0, 0);
QVector3D cameraPosition = cameraTransformation * QVector3D(0, 0, distance);
QVector3D cameraUpDirection = cameraTransformation * QVector3D(0, 1, 0);
vMatrix.lookAt(cameraPosition, QVector3D(0, 0, 0), cameraUpDirection);
mMatrix.setToIdentity();
QMatrix4x4 mvMatrix;
mvMatrix = vMatrix * mMatrix;
QMatrix3x3 normalMatrix;
normalMatrix = mvMatrix.normalMatrix();
QMatrix4x4 lightTransformation;
lightTransformation.rotate(lightAngle, 0, 1, 0);
QVector3D lightPosition = lightTransformation * QVector3D(0, 1, 1);
lightingShaderProgram.bind();
lightingShaderProgram.setUniformValue("mvpMatrix", pMatrix * mvMatrix);
lightingShaderProgram.setUniformValue("mvMatrix", mvMatrix);
lightingShaderProgram.setUniformValue("normalMatrix", normalMatrix);
lightingShaderProgram.setUniformValue("lightPosition", vMatrix * lightPosition);
lightingShaderProgram.setUniformValue("ambientColor", QColor(32, 32, 32));
lightingShaderProgram.setUniformValue("diffuseColor", QColor(128, 128, 128));
lightingShaderProgram.setUniformValue("specularColor", QColor(255, 255, 255));
lightingShaderProgram.setUniformValue("ambientReflection", (GLfloat) 1.0);
lightingShaderProgram.setUniformValue("diffuseReflection", (GLfloat) 1.0);
lightingShaderProgram.setUniformValue("specularReflection", (GLfloat) 1.0);
lightingShaderProgram.setUniformValue("shininess", (GLfloat) 100.0);
lightingShaderProgram.setUniformValue("texture", 0);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, cubeTexture);
glActiveTexture(0);
//! [4]
cubeBuffer.bind();
int offset = 0;
lightingShaderProgram.setAttributeBuffer("vertex", GL_FLOAT, offset, 3, 0);
lightingShaderProgram.enableAttributeArray("vertex");
offset += numCubeVertices * 3 * sizeof(GLfloat);
lightingShaderProgram.setAttributeBuffer("normal", GL_FLOAT, offset, 3, 0);
lightingShaderProgram.enableAttributeArray("normal");
offset += numCubeVertices * 3 * sizeof(GLfloat);
lightingShaderProgram.setAttributeBuffer("textureCoordinate", GL_FLOAT, offset, 2, 0);
lightingShaderProgram.enableAttributeArray("textureCoordinate");
cubeBuffer.release();
glDrawArrays(GL_TRIANGLES, 0, numCubeVertices);
//! [4]
lightingShaderProgram.disableAttributeArray("vertex");
lightingShaderProgram.disableAttributeArray("normal");
lightingShaderProgram.disableAttributeArray("textureCoordinate");
lightingShaderProgram.release();
mMatrix.setToIdentity();
mMatrix.translate(lightPosition);
mMatrix.rotate(lightAngle, 0, 1, 0);
mMatrix.rotate(45, 1, 0, 0);
mMatrix.scale(0.1);
coloringShaderProgram.bind();
coloringShaderProgram.setUniformValue("mvpMatrix", pMatrix * vMatrix * mMatrix);
//! [5]
spotlightBuffer.bind();
offset = 0;
coloringShaderProgram.setAttributeBuffer("vertex", GL_FLOAT, offset, 3, 0);
coloringShaderProgram.enableAttributeArray("vertex");
offset += numSpotlightVertices * 3 * sizeof(GLfloat);
coloringShaderProgram.setAttributeBuffer("color", GL_FLOAT, offset, 3, 0);
coloringShaderProgram.enableAttributeArray("color");
spotlightBuffer.release();
glDrawArrays(GL_TRIANGLES, 0, numSpotlightVertices);
//! [5]
coloringShaderProgram.disableAttributeArray("vertex");
coloringShaderProgram.disableAttributeArray("color");
coloringShaderProgram.release();
//! [6]
}
void InstancedHistogramScene::render()
{
glDepthMask( true );
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
{
QMutexLocker locker( &m_mutex );
glPushClientAttrib( GL_CLIENT_VERTEX_ARRAY_BIT );
m_dataBuffer.bind();
m_dataBuffer.allocate( m_data.data(), m_data.size() * sizeof( float ) );
glPopClientAttrib();
// Bind the shader program
m_cube->material()->bind();
QOpenGLShaderProgramPtr shader = m_cube->material()->shader();
// Calculate needed matrices
m_modelMatrix.setToIdentity();
m_modelMatrix.rotate( m_theta, 0.0f, 1.0f, 0.0f );
QMatrix4x4 modelViewMatrix = m_camera->viewMatrix() * m_modelMatrix;
QMatrix3x3 normalMatrix = modelViewMatrix.normalMatrix();
shader->setUniformValue( "modelViewMatrix", modelViewMatrix );
shader->setUniformValue( "normalMatrix", normalMatrix );
shader->setUniformValue( "projectionMatrix", m_camera->projectionMatrix() );
}
// Scale the x-z dimensions of the cuboids
QOpenGLShaderProgramPtr shader = m_cube->material()->shader();
shader->setUniformValue( "cubeScale", QVector2D( 0.25f, 0.25f ) );
// Set the lighting parameters
shader->setUniformValue( "light.position", QVector4D( 0.0f, 0.0f, 0.0f, 1.0f ) );
shader->setUniformValue( "light.intensity", QVector3D( 1.0f, 1.0f, 1.0f ) );
shader->setUniformValue( "material.ks", QVector3D( 0.95f, 0.95f, 0.95f ) );
shader->setUniformValue( "material.ka", QVector3D( 0.1f, 0.1f, 0.1f ) );
shader->setUniformValue( "material.shininess", 100.0f );
// Draw the cuboids
#if !defined(Q_OS_MAC)
m_cube->vertexArrayObject()->bind();
m_funcs->glDrawElementsInstanced( GL_TRIANGLES, m_cube->indexCount(), GL_UNSIGNED_INT, 0, pointCount );
#else
glPushClientAttrib( GL_CLIENT_VERTEX_ARRAY_BIT );
m_cube->bindBuffers();
m_dataBuffer.bind();
shader->enableAttributeArray( "point" );
shader->setAttributeBuffer( "point", GL_FLOAT, 0, 3 );
GLuint pointLocation = shader->attributeLocation( "point" );
m_instanceFuncs->glVertexAttribDivisorARB( pointLocation, 1 );
m_drawInstanced->glDrawElementsInstancedARB( GL_TRIANGLES, m_cube->indexCount(), GL_UNSIGNED_INT, 0, pointCount );
glPopClientAttrib();
#endif
// Draw the background sphere
m_sphere->material()->bind();
shader = m_sphere->material()->shader();
{
QMutexLocker locker( &m_mutex );
// Set the mvp matrix
QMatrix4x4 mvp = m_camera->viewProjectionMatrix() * m_sphereModelMatrix;
shader->setUniformValue( "mvp", mvp );
shader->setUniformValue( "time", m_time );
shader->setUniformValue( "texCoordScale", m_scale );
shader->setUniformValue( "texCoordTimeScale", m_timeScale );
QVector3D colorBias( m_redBias, m_greenBias, m_blueBias );
shader->setUniformValue( "colorBias", colorBias );
}
// Let the mesh setup the remainder of its state and draw itself
#if !defined(Q_OS_MAC)
m_sphere->render();
#else
glPushClientAttrib( GL_CLIENT_VERTEX_ARRAY_BIT );
m_sphere->bindBuffers();
m_sphere->render();
glPopClientAttrib();
#endif
shader->release();
}
void HeightMap3DRenderer::render(){
if(!m_initialized)initialize();
QMatrix4x4 modelMatrix;
modelMatrix.rotate(-90, {1,0,0});
const float rootSize = 50;
modelMatrix.scale(rootSize);
//select terrain patches of different lod levels here
//TODO maybe this is not the right place for this kind of code...
std::vector<float> ranges;
{
ranges.push_back(0.125);
float lowestLodRes = rootSize;
while(lowestLodRes > 0.25){
ranges.push_back(ranges.back()*2);
lowestLodRes /= 2;
}
}
std::vector<TerrainPatchSelection> selections;
const int lodLevelCount = ranges.size()+1;
const float rootScale = rootSize;
TerrainPatchSelection rootQuad{lodLevelCount-1,{0,0,0},rootScale};
QVector3D observerPosition = modelMatrix.inverted() * m_state.camera.position();
observerPosition.setZ(0);//TODO don't ignore height
rootQuad.lodSelect(ranges,observerPosition,selections);
glClearColor(0.6, 0.85, 1, 1);
glDepthMask(GL_TRUE);
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
if(!m_program || m_sourceDirty){
recompileProgram();
}
m_program->bind();
m_program->enableAttributeArray(0);
//set gl states for terrain rendering
//TODO maybe some of these are remembered by vao?
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LEQUAL);
glEnable(GL_CULL_FACE);
glDisable(GL_BLEND);
glCullFace(GL_BACK);
QMatrix4x4 viewMatrix = m_state.camera.worldToLocalMatrix();
QMatrix4x4 projectionMatrix;
projectionMatrix.perspective(65, m_aspectRatio, 1.0, 10024);
// projectionMatrix.ortho(-10,10,-10,10,0.10,10);
projectionMatrix.scale({1,-1,1}); //flip Y coordinates because otherwise Qt will render it upside down
QMatrix4x4 modelViewMatrix = viewMatrix * modelMatrix;
QMatrix4x4 mvp = projectionMatrix * modelViewMatrix;
//uniforms shared between patches
m_program->setUniformValue("modelViewMatrix", modelViewMatrix);
m_program->setUniformValue("normalMatrix", modelViewMatrix.normalMatrix());
m_program->setUniformValue("projectionMatrix", projectionMatrix);
m_program->setUniformValue("mvp", mvp);
m_program->setUniformValue("sampleOffset", QVector2D(m_state.center.x(), m_state.center.y()));
m_program->setUniformValue("scaling", QVector3D(
1.0/m_state.widthScale * 0.1, //TODO get rid of these magic constants
1.0/m_state.widthScale * 0.1,
m_state.heightScale //height scaling
)
);
//this is where the magic happens
{
QOpenGLVertexArrayObject::Binder binder(&m_vao);
//loop through all selected terrain patches
for (TerrainPatchSelection selection : selections) {
QVector2D patchOffset{selection.position.x(),
selection.position.y()};
m_program->setUniformValue("patchOffset", patchOffset);
m_program->setUniformValue("patchSize", selection.size);
glDrawArrays(GL_TRIANGLE_STRIP, 0, m_vertexCount);
}
}
m_program->release();
}
void OpenGLWidget :: paintGL () {
glClear ( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ) ;
// qDebug() << "paintGL 1";
if( objects.size() == 0 ) return;
std::list<Entity*>::iterator object = objects.begin();
// qDebug() << "paintGL 2";
Entity * obj;
modelView.setToIdentity () ;
modelView.lookAt ( camera.eye , camera.at , camera.up ) ;
// qDebug() << "paintGL 3";
QMatrix4x4 modelViewMatrix;
while( object != objects.end() ){
obj = (*object);
// qDebug() << "paintGL 4";
if( !obj->live ){
object++;
continue;
}
obj->getShaderProgram()->bind();
// qDebug() << "paintGL 5";
ambientProduct = light.ambient * obj->getMaterial()->ambient ;
diffuseProduct = light.diffuse * obj->getMaterial()->diffuse ;
specularProduct = light.specular * obj->getMaterial()->specular ;
// qDebug() << "paintGL 6";
modelViewMatrix = modelView * obj->getTransformation();
obj->getShaderProgram()->setUniformValue("lightPosition", light.position ) ;
obj->getShaderProgram()->setUniformValue("ambientProduct", ambientProduct ) ;
obj->getShaderProgram()->setUniformValue("diffuseProduct", diffuseProduct ) ;
obj->getShaderProgram()->setUniformValue("specularProduct", specularProduct ) ;
obj->getShaderProgram()->setUniformValue("shininess", static_cast < GLfloat >( material.shininess ) ) ;
obj->getShaderProgram()->setUniformValue("modelView", modelViewMatrix ) ;
obj->getShaderProgram()->setUniformValue("normalMatrix", modelViewMatrix.normalMatrix() ) ;
obj->getShaderProgram()->setUniformValue("projectionMatrix", projectionMatrix );
// qDebug() << "paintGL 7";
obj->getVboVertices()-> bind () ;
obj->getShaderProgram() -> enableAttributeArray ("vPosition") ;
obj->getShaderProgram() -> setAttributeBuffer ("vPosition", GL_FLOAT , 0 , 4 , 0) ;
// qDebug() << "paintGL 8";
obj->getVboNormals()->bind();
obj->getShaderProgram() -> enableAttributeArray ("vNormal") ;
obj->getShaderProgram() -> setAttributeBuffer ("vNormal", GL_FLOAT , 0 , 3 , 0) ;
// qDebug() << "paintGL 9";
obj->getVboTangents()->bind();
obj->getShaderProgram()->enableAttributeArray ("vTangent") ;
obj->getShaderProgram()->setAttributeBuffer ("vTangent", GL_FLOAT , 0 , 4 , 0) ;
// qDebug() << "paintGL 10";
obj->getVboIndices()->bind() ;
// qDebug() << "paintGL 11";
obj->getVbocoordText() -> bind ();
obj->getShaderProgram() -> enableAttributeArray ("vcoordText") ;
obj->getShaderProgram() -> setAttributeBuffer ("vcoordText", GL_FLOAT , 0 , 2 , 0) ;
// qDebug() << "paintGL 12";
obj->getMaterial()->texture -> bind (0) ;
obj->getShaderProgram() -> setUniformValue ("colorTexture", 0) ;
if( obj->getMaterial()->map1 != NULL ){
obj->getMaterial()->map1 -> bind (1) ;
obj->getShaderProgram() -> setUniformValue ("colorMap", 1);
}
// qDebug() << "paintGL 13";
glDrawElements ( GL_TRIANGLES , obj->getFacesCount() * 3 , GL_UNSIGNED_INT , 0) ;
// qDebug() << "paintGL 14";
obj->getShaderProgram()->release();
obj->getVboVertices()->release();
obj->getVboNormals()->release();
obj->getVboIndices()->release();
obj->getVbocoordText()->release();
obj->getMaterial()->texture->release(0);
if( obj->getMaterial()->map1 != NULL ){
obj->getMaterial()->map1->release(1);
}
// qDebug() << "paintGL 15";
object++;
}
// qDebug() << "paintGL 16";
float deltaTime = (float) elapsedTime.elapsed() / 1000;
gameLogic( deltaTime );
elapsedTime.restart();
}
//
// Draw the window
//
void Ex07opengl::paintGL()
{
// Wall time (seconds)
float t = 0.001*time.elapsed();
if (move) zh = fmod(90*t,360);
// Clear screen and Z-buffer
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glEnable(GL_DEPTH_TEST);
// Translate intensity to color vectors
float Ambient[] = {0.3,0.3,0.3,1.0};
float Diffuse[] = {0.8,0.8,0.8,1.0};
float Specular[] = {1.0,1.0,1.0,1.0};
float Position[] = {(float)(3*Cos(zh)),z0,(float)(3*Sin(zh)),1.0};
// Draw light position (no lighting yet)
glColor3f(1,1,1);
ball(Position[0],Position[1],Position[2] , 0.1);
// Set view
glLoadIdentity();
if (fov) glTranslated(0,0,-2*dim);
glRotated(ph,1,0,0);
glRotated(th,0,1,0);
// Fixed pipeline
if (mode==0)
{
// OpenGL should normalize normal vectors
glEnable(GL_NORMALIZE);
// Enable lighting
glEnable(GL_LIGHTING);
// glColor sets ambient and diffuse color materials
glColorMaterial(GL_FRONT_AND_BACK,GL_AMBIENT_AND_DIFFUSE);
glEnable(GL_COLOR_MATERIAL);
// Enable light 0
glEnable(GL_LIGHT0);
// Set ambient, diffuse, specular components and position of light 0
glLightfv(GL_LIGHT0,GL_AMBIENT ,Ambient);
glLightfv(GL_LIGHT0,GL_DIFFUSE ,Diffuse);
glLightfv(GL_LIGHT0,GL_SPECULAR,Specular);
glLightfv(GL_LIGHT0,GL_POSITION,Position);
// Enable textures
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D,tex);
// Enabe arrays
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_NORMAL_ARRAY);
glEnableClientState(GL_COLOR_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
// Set pointers
glVertexPointer (4,GL_FLOAT,12*sizeof(GLfloat),cube_data);
glNormalPointer ( GL_FLOAT,12*sizeof(GLfloat),cube_data+4);
glColorPointer (3,GL_FLOAT,12*sizeof(GLfloat),cube_data+7);
glTexCoordPointer(2,GL_FLOAT,12*sizeof(GLfloat),cube_data+10);
// Draw the cube
glDrawArrays(GL_TRIANGLES,0,cube_size);
// Disable arrays
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_NORMAL_ARRAY);
glDisableClientState(GL_COLOR_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
// Disable textures and lighting
glDisable(GL_TEXTURE_2D);
glDisable(GL_LIGHTING);
}
// OpenGL 4 style shaders
else
{
// Create View matrix
QMatrix4x4 view;
if (fov) view.translate(0,0,-2*dim);
view.rotate(ph,1,0,0);
view.rotate(th,0,1,0);
// Create ModelView matrix
QMatrix4x4 mv = view;
// Enable shader
shader.bind();
// Set Modelview, Normal and Projection Matrix
shader.setUniformValue("ProjectionMatrix",proj);
shader.setUniformValue("ViewMatrix",view);
shader.setUniformValue("ModelViewMatrix",mv);
shader.setUniformValue("NormalMatrix",mv.normalMatrix());
// Light Properties
shader.setUniformValue("Ambient" ,QVector3D(Ambient[0],Ambient[1],Ambient[2]));
shader.setUniformValue("Diffuse" ,QVector3D(Diffuse[0],Diffuse[1],Diffuse[2]));
shader.setUniformValue("Specular",QVector3D(Specular[0],Specular[1],Specular[2]));
shader.setUniformValue("Position",QVector4D(Position[0],Position[1],Position[2],Position[3]));
// Select cube buffer
cube_buffer.bind();
// Attribute 0: vertex coordinate (vec4) at offset 0
shader.enableAttributeArray(0);
shader.setAttributeBuffer(0,GL_FLOAT,0,4,12*sizeof(float));
// Attribute 1: vertex color (vec3) offset 7 floats
shader.enableAttributeArray(1);
shader.setAttributeBuffer(1,GL_FLOAT,7*sizeof(float),3,12*sizeof(float));
// Attribute 2: vertex normal (vec3) offset 4 floats
shader.enableAttributeArray(2);
shader.setAttributeBuffer(2,GL_FLOAT,4*sizeof(float),3,12*sizeof(float));
// Attribute 3: texture coordinates (vec32 offset 10 floats
shader.enableAttributeArray(3);
shader.setAttributeBuffer(3,GL_FLOAT,10*sizeof(float),2,12*sizeof(float));
// Draw the cube
glDrawArrays(GL_TRIANGLES,0,cube_size);
// Disable vertex arrays
shader.disableAttributeArray(0);
shader.disableAttributeArray(1);
shader.disableAttributeArray(2);
shader.disableAttributeArray(3);
// Unbind this buffer
cube_buffer.release();
// Back to fixed pipeline
shader.release();
}
// Axes for reference
glColor3f(1,1,1);
glBegin(GL_LINES);
glVertex3f(0,0,0);
glVertex3f(2,0,0);
glVertex3f(0,0,0);
glVertex3f(0,2,0);
glVertex3f(0,0,0);
glVertex3f(0,0,2);
glEnd();
glDisable(GL_DEPTH_TEST);
renderText(2,0,0,"X");
renderText(0,2,0,"Y");
renderText(0,0,2,"Z");
// Emit angles to display
emit angles(QString::number(th)+","+QString::number(ph));
// Emit light angle
emit light((int)zh);
}
void SegmentGL::RenderContour(Segment *seg, QMatrix4x4 projection, QMatrix4x4 modelview, int width, int height)
{
QVector3D vec;
QVector3D pos;
QVector<GLfloat> positions;
QEci qeci;
CalculateSegmentContour(&positions, seg->cornerpointfirst1.latitude, seg->cornerpointfirst1.longitude, seg->cornerpointlast1.latitude, seg->cornerpointlast1.longitude);
CalculateSegmentContour(&positions,seg->cornerpointlast1.latitude, seg->cornerpointlast1.longitude, seg->cornerpointlast2.latitude, seg->cornerpointlast2.longitude);
CalculateSegmentContour(&positions, seg->cornerpointlast2.latitude, seg->cornerpointlast2.longitude, seg->cornerpointfirst2.latitude, seg->cornerpointfirst2.longitude);
CalculateSegmentContour(&positions,seg->cornerpointfirst2.latitude, seg->cornerpointfirst2.longitude, seg->cornerpointfirst1.latitude, seg->cornerpointfirst1.longitude);
seg->qsgp4->getPosition(seg->minutes_since_state_vector, qeci);
QGeodetic qgeo = qeci.ToGeo();
double lat1 = qgeo.latitude;
double lon1 = qgeo.longitude;
seg->qsgp4->getPosition(seg->minutes_since_state_vector + seg->minutes_sensing, qeci);
qgeo = qeci.ToGeo();
double lat2 = qgeo.latitude;
double lon2 = qgeo.longitude;
CalculateSegmentContour(&positions, lat1, lon1, lat2, lon2);
positionsBuf.bind();
positionsBuf.write(0, positions.data(), positions.size() * sizeof(GLfloat));
positionsBuf.release();
QOpenGLVertexArrayObject::Binder vaoBinder(&vao);
program->bind();
program->setUniformValue("MVP", projection * modelview);
QColor rendercolor(opts.satsegmentcolor);
QColor rendercolorsel(opts.satsegmentcolorsel);
if((*seg).segmentselected)
program->setUniformValue("outcolor", QVector4D(rendercolorsel.redF(), rendercolorsel.greenF(), rendercolorsel.blueF(), 1.0f));
else
program->setUniformValue("outcolor", QVector4D(rendercolor.redF(), rendercolor.greenF(), rendercolor.blueF(), 1.0f));
QMatrix3x3 norm = modelview.normalMatrix();
program->setUniformValue("NormalMatrix", norm);
glDrawArrays(GL_LINE_LOOP, 0, nbrOfVertices - 10);
glDrawArrays(GL_LINE_STRIP, nbrOfVertices - 10, 10);
float mvmatrix[16], projmatrix[16];
QMatrix4x4 MVP;
MVP = projection * modelview;
float *ptr = modelview.data();
for(int i = 0; i < 16; i++)
mvmatrix[i] = *(ptr + i);
ptr = projection.data();
for(int i = 0; i < 16; i++)
projmatrix[i] = *(ptr + i);
QVector2D win;
LonLat2PointRad((float)seg->cornerpointfirst1.latitude, (float)seg->cornerpointfirst1.longitude, &vec, 1.0);
win = glhProjectf (vec, mvmatrix, projmatrix, width, height);
seg->winvecend1 = win;
LonLat2PointRad((float)seg->cornerpointfirst2.latitude, (float)seg->cornerpointfirst2.longitude, &vec, 1.0);
win = glhProjectf (vec, mvmatrix, projmatrix, width, height);
seg->winvecend2 = win;
LonLat2PointRad((float)seg->cornerpointlast1.latitude, (float)seg->cornerpointlast1.longitude, &vec, 1.0);
win = glhProjectf (vec, mvmatrix, projmatrix, width, height);
seg->winvecend3 = win;
LonLat2PointRad((float)seg->cornerpointlast2.latitude, (float)seg->cornerpointlast2.longitude, &vec, 1.0);
win = glhProjectf (vec, mvmatrix, projmatrix, width, height);
seg->winvecend4 = win;
win = glhProjectf (seg->vec1, mvmatrix, projmatrix, width, height);
seg->winvec1 = win;
win = glhProjectf (seg->vec2, mvmatrix, projmatrix, width, height);
seg->winvec2 = win;
}
void SatGL::RenderTrail(Satellite *sat, QMatrix4x4 projection, float distance, QQuaternion quat, bool trackon) // QMatrix4x4 modelview, bool trackon)
{
QVector<GLfloat> postrail;
double
tsince, // Time since epoch (in minutes)
jul_epoch, // Julian date of epoch
jul_utc; // Julian UTC date
QSgp4Date nowutc = QSgp4Date::NowUTC();
jul_utc = nowutc.Julian();
jul_epoch = Julian_Date_of_Epoch(sat->GetEpoch());
QMatrix4x4 model;
model.translate(0.0, 0.0, distance);
model.rotate(quat);
QMatrix4x4 modelview;
modelview = model;
QMatrix4x4 modelocta;
QColor col(0,255,255);
QEci qeci;
QVector3D pos;
double id;
int nbrVertices = 0;
tsince = (jul_utc - jul_epoch) * MIN_PER_DAY; // in minutes
for( id = tsince - 5; id < tsince; id++ )
{
(*sat).qsgp4->getPosition(id, qeci);
QGeodetic qgeo = qeci.ToGeo();
LonLat2PointRad(qgeo.latitude, qgeo.longitude, &pos, 1.001f);
if(id < tsince && id >= tsince - 5 )
{
modelocta = model;
modelocta.translate(pos.x(), pos.y(), pos.z());
modelocta.scale(0.004f);
octa->render(projection, modelocta, col);
}
}
if(trackon)
{
for( id = tsince - opts.realminutesshown + 1; id <= tsince + opts.realminutesshown; id++ ) // nbr of id's = 2 * opts.realminutesshown
{
(*sat).qsgp4->getPosition(id, qeci);
QGeodetic qgeo = qeci.ToGeo();
LonLat2PointRad(qgeo.latitude, qgeo.longitude, &pos, 1.001f);
postrail.append(pos.x());
postrail.append(pos.y());
postrail.append(pos.z());
}
positionsTrail.bind();
if(tdiff != opts.realminutesshown)
{
tdiff = opts.realminutesshown;
positionsTrail.allocate(postrail.data(), postrail.size() * sizeof(GLfloat));
}
else
{
positionsTrail.write(0, postrail.data(), postrail.size() * sizeof(GLfloat));
}
nbrVertices = positionsTrail.size() / (3 * sizeof(GLfloat));
positionsTrail.release();
QOpenGLVertexArrayObject::Binder vaoBinder(&vaotrail);
program->bind();
program->setUniformValue("MVP", projection * modelview);
QMatrix3x3 norm = modelview.normalMatrix();
program->setUniformValue("NormalMatrix", norm);
QColor rendercolor(opts.sattrackcolor);
program->setUniformValue("outcolor", QVector4D(rendercolor.redF(), rendercolor.greenF(), rendercolor.blueF(), 1.0f));
glDrawArrays(GL_LINE_STRIP, 0, nbrVertices);
}
}
void CubeMapRefractionScene::render()
{
// Clear the buffer with the current clearing color
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
// Set up the view matrix
QVector3D eye( 0.0f, 0.0f, 0.0f );
QVector3D center( 0.0f, 0.0f, 1.0f );
QVector3D up( 0.0f, 1.0f, 0.0f );
m_viewMatrix.setToIdentity();
m_viewMatrix.lookAt( eye, center, up );
m_viewMatrix.rotate( m_phi, 1.0f, 0.0f, 0.0f );
m_viewMatrix.rotate( m_theta, 0.0f, 1.0f, 0.0f );
m_modelMatrix.setToIdentity();
QMatrix4x4 modelViewMatrix = m_viewMatrix * m_modelMatrix;
QMatrix4x4 mvp = m_projectionMatrix * modelViewMatrix;
// We need a pointer to the material's shader to set uniform variables
QOpenGLShaderProgramPtr shader = m_skyBox->material()->shader();
// Draw the skybox
shader->setUniformValue( "drawSkyBox", true );
glDepthFunc(GL_LEQUAL);
m_skyBox->render( mvp );
glDepthFunc(GL_LESS);
eye = QVector3D( 0.0f, 0.0f, -4.0f );
m_viewMatrix.setToIdentity();
m_viewMatrix.lookAt( eye, center, up );
m_viewMatrix.rotate( m_phi, 1.0f, 0.0f, 0.0f );
m_viewMatrix.rotate( m_theta, 0.0f, 1.0f, 0.0f );
// Calculate the position of the camera in world coordinates
QMatrix4x4 rot;
rot.rotate( -m_theta, 0.0f, 1.0f, 0.0f );
rot.rotate( -m_phi, 1.0f, 0.0f, 0.0f );
QVector4D worldEye = rot * eye;
QVector3D worldCamera = worldEye.toVector3D();
// Rotate (and scale the model)
m_modelMatrix.setToIdentity();
static float theta = 0.0f;
theta += 0.3f;
m_modelMatrix.rotate( theta, 0.0f, 1.0f, 0.0f );
m_modelMatrix.scale( 0.05f ); // Scale the toyplane mesh down to a reasonable size
modelViewMatrix = m_viewMatrix * m_modelMatrix;
mvp = m_projectionMatrix * modelViewMatrix;
QMatrix3x3 normalMatrix = modelViewMatrix.normalMatrix();
shader->setUniformValue( "worldCameraPosition", worldCamera );
shader->setUniformValue( "modelViewMatrix", modelViewMatrix );
shader->setUniformValue( "modelMatrix", m_modelMatrix );
shader->setUniformValue( "normalMatrix", normalMatrix );
shader->setUniformValue( "projectionMatrix", m_projectionMatrix );
shader->setUniformValue( "mvp", mvp );
// Draw the reflective mesh
shader->setUniformValue( "drawSkyBox", false );
shader->setUniformValue( "material.eta", 0.96f );
shader->setUniformValue( "material.reflectionFactor", 0.0f );
m_mesh->render();
}
void Visualizer::paintGL()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
QMatrix4x4 mMatrix;
QMatrix4x4 vMatrix;
QMatrix4x4 cameraTransformation;
cameraTransformation.rotate(alpha,0,1,0);
cameraTransformation.rotate(beta,1,0,0);
QVector3D cameraPosition = cameraTransformation * QVector3D(0,0,distance);
QVector3D cameraUpDirection = cameraTransformation * QVector3D(0,1,0);
vMatrix.lookAt(cameraPosition,QVector3D(0,0,0),cameraUpDirection);
mMatrix.setToIdentity();
QMatrix4x4 mvMatrix;
mvMatrix = vMatrix * mMatrix;
QMatrix3x3 normalMatrix;
normalMatrix = mvMatrix.normalMatrix();
QMatrix4x4 lightTransformation;
lightTransformation.rotate(lightAngle,0 ,1, 0);
//QVector3D lightPosition = lightTransformation * QVector3D(0,1,1);
QVector3D lightPosition = QVector3D(0,1,1);
QVector3D leftlightPosition = QVector3D(-1,0,0);
int offset;
// for(int k=0;k<myBlocks.size();k++)
for(int k=0;k<27;k++)
{
mMatrix.setToIdentity();
// mMatrix *= stones[k].mMatrix;
// mMatrix.translate(stones[k].position);
if(isRotating)
{
mMatrix = myBlocks.value(k)->getModelMatrix() * mMatrix;
mMatrix.translate(myBlocks.value(k)->getPosition());
}
if(!isRotating)
{
mMatrix.translate(myBlocks.value(k)->getPosition());
mMatrix = myBlocks.value(k)->getOrientation() * mMatrix ;
}
//mMatrix = myBlocks.value(k)->getOrientation() * mMatrix;
mMatrix.scale(1);
mvMatrix = vMatrix * mMatrix;
normalMatrix = mvMatrix.normalMatrix();
m_pBufferList[k]->shaderProgram->bind();
m_pBufferList[k]->shaderProgram->setUniformValue("mvpMatrix", pMatrix * mvMatrix);
m_pBufferList[k]->shaderProgram->setUniformValue("mvMatrix", mvMatrix);
m_pBufferList[k]->shaderProgram->setUniformValue("normalMatrix", normalMatrix);
m_pBufferList[k]->shaderProgram->setUniformValue("lightPosition", vMatrix * lightPosition);
m_pBufferList[k]->shaderProgram->setUniformValue("leftlightPosition", vMatrix * leftlightPosition);
m_pBufferList[k]->shaderProgram->setUniformValue("ambientColor", QColor(162,162,162));
m_pBufferList[k]->shaderProgram->setUniformValue("diffuseColor", QColor(128,128,128));
m_pBufferList[k]->shaderProgram->setUniformValue("specularColor", QColor(255,255,255));
m_pBufferList[k]->shaderProgram->setUniformValue("ambientReflection", (GLfloat) 1.0);
m_pBufferList[k]->shaderProgram->setUniformValue("diffuseReflection", (GLfloat) 1.0);
m_pBufferList[k]->shaderProgram->setUniformValue("specularReflection", (GLfloat) 1.0);
m_pBufferList[k]->shaderProgram->setUniformValue("shininess", (GLfloat) 100.0);
//m_pBufferList[0]->shaderProgram->setUniformValue("texture",0);
//glBindTexture(GL_TEXTURE_2D,cubeTexture);
WriteBufferToGPU(m_pBufferList[k],0);
glDrawArrays(GL_TRIANGLES, 0, m_pBufferList[k]->numVertices);
releaseShaderProgram(m_pBufferList[k],0);
}
mMatrix.setToIdentity();
mMatrix.translate(lightPosition);
mMatrix.rotate(lightAngle,0,1,0);
mMatrix.rotate(45,1,0,0);
mMatrix.scale(0.1);
coloringShaderProgram.bind();
coloringShaderProgram.setUniformValue("mvpMatrix", pMatrix*vMatrix*mMatrix);
offset = 0;
spotlightBuffer.bind();
coloringShaderProgram.setAttributeBuffer("vertex", GL_FLOAT, offset, 3, 0);
coloringShaderProgram.enableAttributeArray("vertex");
offset += numSpotlightVertices * 3 * sizeof (GLfloat);
coloringShaderProgram.setAttributeBuffer("color", GL_FLOAT, offset, 3, 0);
coloringShaderProgram.enableAttributeArray("color");
glDrawArrays(GL_TRIANGLES, 0, spotlightVertices.size());
coloringShaderProgram.disableAttributeArray("vertex");
coloringShaderProgram.disableAttributeArray("color");
coloringShaderProgram.release();
mMatrix.setToIdentity();
mMatrix.translate(-2,0,0);
mMatrix.scale(0.1);
leftlightShaderProgram.bind();
leftlightShaderProgram.setUniformValue("mvpMatrix", pMatrix*vMatrix*mMatrix);
blenderObjectFileBuffer.bind();
offset = 0;
leftlightShaderProgram.setAttributeBuffer("vertex", GL_FLOAT, offset, 3, 0);
leftlightShaderProgram.enableAttributeArray("vertex");
offset += numSpotlightVertices * 3 * sizeof (GLfloat);
leftlightShaderProgram.setAttributeBuffer("color", GL_FLOAT, offset, 3, 0);
leftlightShaderProgram.enableAttributeArray("color");
glDrawArrays(GL_TRIANGLES, 0, 12);
leftlightShaderProgram.disableAttributeArray("vertex");
leftlightShaderProgram.disableAttributeArray("color");
leftlightShaderProgram.release();
}
void GLWidget::renderAxis3D()
{
QMatrix4x4 axisPos[] = {modelView, modelView, modelView};
axisPos[0].rotate(-90.0f, 0.0f, 0.0f, 1.0f);
axisPos[2].rotate(-90.0f, 1.0f, 0.0f);
float color[] =
{
1.0f, 0.0f, 0.0f, 1.0f,
0.0f, 1.0f, 0.0f, 1.0f,
0.0f, 0.0f, 1.0f, 1.0f
};
program->setUniformValue("color", 1.0f, 1.0f, 1.0f, 1.0f);
program->setUniformValue("modelViewProj", proj * modelView);
program->setUniformValue("modelView", modelView);
program->setUniformValue("normalMatr", modelView.normalMatrix());
program->setUniformValue("normMethod", 0);
axisSphereBuffer.bind();
program->setAttributeArray("vertexis", GL_FLOAT, NULL, 3);
glDrawArrays(GL_TRIANGLE_STRIP, 0, axisSphereSize / 3);
axisBottomSphereBuffer.bind();
program->setAttributeArray("vertexis", GL_FLOAT, NULL, 3);
glDrawArrays(GL_TRIANGLE_FAN, 0, axisBottomSphereSize / 3);
for (int i = 0; i < 3; i++)
{
program->setUniformValue("color", color[i * 4], color[i * 4 + 1], color[i * 4 + 2], color[i * 4 + 3]);
program->setUniformValue("modelViewProj", proj * axisPos[i]);
program->setUniformValue("modelView", axisPos[i]);
program->setUniformValue("normalMatr", axisPos[i].normalMatrix());
program->setUniformValue("normMethod", 2);
axisCylynderBuffer.bind();
program->setAttributeArray("vertexis", GL_FLOAT, NULL, 3);
glDrawArrays(GL_TRIANGLE_STRIP, 0, axisCylynderSize / 3);
QMatrix4x4 tmp = axisPos[i];
tmp.translate(0.0f, 0.5f, 0.0f);
tmp.rotate(180.0f, 1.0f, 0.0f);
program->setUniformValue("modelViewProj", proj * tmp);
program->setUniformValue("modelView", tmp);
program->setUniformValue("normalMatr", tmp.normalMatrix());
program->setUniformValue("normMethod", 1);
axisDiskBuffer.bind();
program->setAttributeArray("vertexis", GL_FLOAT, NULL, 3);
glDrawArrays(GL_TRIANGLE_FAN, 0, axisDiskSize / 3);
tmp.rotate(180.0f, 1.0f, 0.0f);
program->setUniformValue("modelViewProj", proj * tmp);
program->setUniformValue("modelView", tmp);
program->setUniformValue("normalMatr", tmp.normalMatrix());
program->setUniformValue("normMethod", 1);
axisConeBuffer.bind();
program->setAttributeArray("vertexis", GL_FLOAT, NULL, 3);
glDrawArrays(GL_TRIANGLE_FAN, 0, axisConeSize / 3);
}
}
void SatGL::render(QMatrix4x4 projection, float distance, QQuaternion quat )
{
QMatrix4x4 modelview;
modelview.translate(0.0, 0.0, distance);
modelview.rotate(quat);
QVector<GLfloat> positions;
QList<Satellite>::iterator sat = sats->GetSatlist()->begin();
int nbrSats = 0;
int nbrVertices;
QMatrix4x4 modelocta;
QColor col(255, 0, 0);
float alt;
while ( sat != sats->GetSatlist()->end() )
{
if( (*sat).active == true)
{
QVector3D pos, posnorm;
(*sat).GetSatellitePosition(pos, posnorm, alt);
positions.append(0.0f);
positions.append(0.0f);
positions.append(0.0f);
positions.append(pos.x());
positions.append(pos.y());
positions.append(pos.z());
modelocta = modelview;
modelocta.translate(posnorm.x(), posnorm.y(), posnorm.z());
modelocta.scale(0.005f);
octa->render(projection, modelocta, col);
QColor horizoncolour(opts.sathorizoncolor);
horizon->render(projection, distance, quat, posnorm, alt, horizoncolour);
nbrSats++;
}
++sat;
}
positionsBuf.bind();
if(nbrSats != nbrActiveSats)
{
nbrActiveSats = nbrSats;
positionsBuf.allocate(positions.data(), positions.size() * sizeof(GLfloat));
qDebug() << "positionsBuf.size() != nbrActiveSats * 2 * 3 * sizeof(GLfloat)";
qDebug() << "nbrActiveSats = " << nbrActiveSats << " positionsBuf.size() = " << positionsBuf.size();
}
else
{
positionsBuf.write(0, positions.data(), positions.size() * sizeof(GLfloat));
}
nbrVertices = positionsBuf.size() / (3 * sizeof(GLfloat));
positionsBuf.release();
QOpenGLVertexArrayObject::Binder vaoBinder(&vao);
program->bind();
program->setUniformValue("MVP", projection * modelview);
QMatrix3x3 norm = modelview.normalMatrix();
program->setUniformValue("NormalMatrix", norm);
QColor rendercolor(255, 0, 0);
program->setUniformValue("outcolor", QVector4D(rendercolor.redF(), rendercolor.greenF(), rendercolor.blueF(), 1.0f));
glDrawArrays(GL_LINES, 0, nbrVertices);
sat = sats->GetSatlist()->begin();
while ( sat != sats->GetSatlist()->end() )
{
if( (*sat).active == true)
{
if( (*sat).GetCatalogueNbr() == sats->GetSelectedSat() )
RenderTrail(&(*sat), projection, distance, quat, true);
else
RenderTrail(&(*sat), projection, distance, quat, false);
}
++sat;
}
// QMatrix4x4 mod;
// mod.setToIdentity();
// mod.translate(0.0, 0.0, distance);
// mod.rotate(quat);
// modelocta = mod;
// modelocta.translate(0.0, 1.0, 0.0);
// modelocta.scale(0.009f);
// octa->render(projection, modelocta, col);
// modelocta = mod;
// modelocta.translate(0.0, 0.0, 1.0);
// modelocta.scale(0.009f);
// octa->render(projection, modelocta, col);
// modelocta = mod;
// modelocta.translate(1.0, 0.0, 0.0);
// modelocta.scale(0.009f);
// octa->render(projection, modelocta, col);
}
void Traingle::paintGL()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
QMatrix4x4 mMatrix;
QMatrix4x4 vMatrix;
mMatrix.setToIdentity();
QMatrix4x4 mvMatrix;
mvMatrix = vMatrix * mMatrix;
//vMatrix.setToIdentity();
QMatrix3x3 normalMatrix;
normalMatrix = mvMatrix.normalMatrix();
QMatrix4x4 lightTransformation;
lightTransformation.rotate(lightAngle,0,1,0);
QVector3D lightPosition = lightTransformation*QVector3D(0,1,1);
lightingShaderProgram.bind();
lightingShaderProgram.setUniformValue("mvpMatrix",pMatrix * mvMatrix);
lightingShaderProgram.setUniformValue("mvMatrix",mvMatrix);
lightingShaderProgram.setUniformValue("normalMatrix",normalMatrix);
lightingShaderProgram.setUniformValue("lightPosition", vMatrix * lightPosition);
lightingShaderProgram.setUniformValue("ambientColor",QColor(32,32,32));
lightingShaderProgram.setUniformValue("diffuesColor",QColor(128,128,128));
lightingShaderProgram.setUniformValue("ambientReflection", (GLfloat) 1.0);
lightingShaderProgram.setUniformValue("diffuseReflection", (GLfloat) 1.0);
lightingShaderProgram.setUniformValue("specularReflection", (GLfloat) 1.0);
lightingShaderProgram.setUniformValue("shininess", (GLfloat) 100.0);
lightingShaderProgram.setUniformValue("texture", 0);
glBindTexture(GL_TEXTURE_2D,cubeTexture);
//glActiveTe
lightingShaderProgram.setAttributeArray("vertex", cubeVertices.constData());
lightingShaderProgram.enableAttributeArray("vertex");
lightingShaderProgram.setAttributeArray("normal", cubeNormals.constData());
lightingShaderProgram.enableAttributeArray("normal");
lightingShaderProgram.setAttributeArray("textureCoordinate", cubeTextureCoordinates.constData());
lightingShaderProgram.enableAttributeArray("textureCoordinate");
glDrawArrays(GL_TRIANGLES, 0, cubeVertices.size());
lightingShaderProgram.disableAttributeArray("vertex");
lightingShaderProgram.disableAttributeArray("normal");
lightingShaderProgram.disableAttributeArray("textureCoordinate");
lightingShaderProgram.release();
QMatrix4x4 cameraTransformation;
// qDebug()<<QString("alpha %1 beta %2 distance %3").arg(alpha).arg(beta).arg(distance);
cameraTransformation.rotate(alpha,0,1,0);
cameraTransformation.rotate(beta,1,0,0);
QVector3D cameraPosition = cameraTransformation*QVector3D(0,0,distance);
QVector3D cameraUpDirection = cameraTransformation*QVector3D(0,1,0);
vMatrix.lookAt(cameraPosition, QVector3D(0,0,0),cameraUpDirection);
mMatrix.setToIdentity();
mMatrix.translate(lightPosition);
mMatrix.rotate(lightAngle, 0, 1, 0);
mMatrix.rotate(45, 1, 0, 0);
mMatrix.scale(0.1);
coloringShaderProgram.bind();
coloringShaderProgram.setUniformValue("mvpMatrix", pMatrix * vMatrix * mMatrix);
coloringShaderProgram.setAttributeArray("vertex", spotlightVertices.constData());
coloringShaderProgram.enableAttributeArray("vertex");
coloringShaderProgram.setAttributeArray("color", spotlightColors.constData());
coloringShaderProgram.enableAttributeArray("color");
glDrawArrays(GL_TRIANGLES, 0, spotlightVertices.size());
coloringShaderProgram.disableAttributeArray("vertex");
coloringShaderProgram.disableAttributeArray("color");
coloringShaderProgram.release();
/*
//shaderProgram.setUniformValue("color", QColor(Qt::white));
shaderProgram.setAttributeArray("color",colors.constData());
shaderProgram.enableAttributeArray("color");
*/
/*coloringShaderProgram.setAttributeArray("textureCoordinate", textureCoordinates.constData());
coloringShaderProgram.enableAttributeArray("textureCoordinate");
glDrawArrays(GL_TRIANGLES, 0, vertices.size());
coloringShaderProgram.disableAttributeArray("vertex");
// shaderProgram.disableAttributeArray("color");
coloringShaderProgram.disableAttributeArray("textureCoordinate");
coloringShaderProgram.release();*/
}
