void CubeDrawable::draw(const Matrix4& transformationMatrix, SceneGraph::Camera3D& camera) {
_shader.setDiffuseColor(_color)
.setSpecularColor(Color3(1.0f))
.setShininess(20)
.setLightPosition(camera.cameraMatrix().transformPoint({3.0f, 3.0f, 3.0f}))
.setTransformationMatrix(transformationMatrix)
.setNormalMatrix(transformationMatrix.rotationScaling())
.setProjectionMatrix(camera.projectionMatrix());
_mesh.draw(_shader);
}
void Reflector::draw(const Matrix4& transformationMatrix, SceneGraph::Camera3D& camera) {
_shader->setTransformationMatrix(transformationMatrix)
.setNormalMatrix(transformationMatrix.rotationScaling())
.setProjectionMatrix(camera.projectionMatrix())
.setReflectivity(2.0f)
.setDiffuseColor(Color3(0.3f))
.setCameraMatrix(static_cast<Object3D&>(camera.object()).absoluteTransformation().rotationScaling())
.setTexture(*_texture)
.setTarnishTexture(*_tarnishTexture);
_sphere->draw(*_shader);
}
void draw(const Matrix4& transformation, SceneGraph::Camera3D& camera) override {
_shader.setDiffuseColor(_color)
.setTransformationMatrix(transformation*_primitiveTransformation)
.setProjectionMatrix(camera.projectionMatrix())
.setNormalMatrix(transformation.rotationScaling());
_mesh.draw(_shader);
}
void CubeMapExample::drawEvent() {
defaultFramebuffer.clear(FramebufferClear::Depth);
defaultFramebuffer.invalidate({DefaultFramebuffer::InvalidationAttachment::Color});
camera->draw(drawables);
swapBuffers();
}
void Icosphere::draw(const Matrix4& transformationMatrix, SceneGraph::Camera3D& camera) {
shader->setDiffuseColor(color)
.setSpecularColor(Color3(1.0f))
.setShininess(20)
.setLightPosition({3.0f, -3.0f, 3.0f})
.setTransformationMatrix(transformationMatrix)
.setNormalMatrix(transformationMatrix.rotationScaling())
.setProjectionMatrix(camera.projectionMatrix());
mesh->draw(*shader);
}
void MotionBlurExample::drawEvent() {
defaultFramebuffer.clear(DefaultFramebuffer::Clear::Color|DefaultFramebuffer::Clear::Depth);
camera->draw(drawables);
swapBuffers();
cameraObject->rotateX(1.0_degf);
spheres[0]->rotateZ(-2.0_degf);
spheres[1]->rotateZ(1.0_degf);
spheres[2]->rotateZ(-0.5_degf);
Utility::sleep(40);
redraw();
}
void BulletExample::drawEvent() {
GL::defaultFramebuffer.clear(GL::FramebufferClear::Color|GL::FramebufferClear::Depth);
/* Housekeeping: remove any objects which are far away from the origin */
for(Object3D* obj = _scene.children().first(); obj; )
{
Object3D* next = obj->nextSibling();
if(obj->transformation().translation().dot() > 100*100)
delete obj;
obj = next;
}
/* Step bullet simulation */
_bWorld.stepSimulation(_timeline.previousFrameDuration(), 5);
/* Draw the cubes */
if(_drawCubes) _camera->draw(_drawables);
/* Debug draw. If drawing on top of cubes, avoid flickering by setting
depth function to <= instead of just <. */
if(_drawDebug) {
if(_drawCubes)
GL::Renderer::setDepthFunction(GL::Renderer::DepthFunction::LessOrEqual);
_debugDraw.setTransformationProjectionMatrix(
_camera->projectionMatrix()*_camera->cameraMatrix());
_bWorld.debugDrawWorld();
if(_drawCubes)
GL::Renderer::setDepthFunction(GL::Renderer::DepthFunction::Less);
}
swapBuffers();
_timeline.nextFrame();
redraw();
}
void BulletExample::mousePressEvent(MouseEvent& event) {
/* Shoot an object on click */
if(event.button() == MouseEvent::Button::Left) {
const Vector2 clickPoint = Vector2::yScale(-1.0f)*(Vector2{event.position()}/Vector2{GL::defaultFramebuffer.viewport().size()} - Vector2{0.5f})* _camera->projectionSize();
const Vector3 direction = (_cameraObject->absoluteTransformation().rotationScaling()*Vector3{clickPoint, -1.0f}).normalized();
auto* object = new RigidBody{
&_scene,
_shootBox ? 1.0f : 5.0f,
_shootBox ? static_cast<btCollisionShape*>(&_bBoxShape) : &_bSphereShape,
_bWorld};
object->translate(_cameraObject->absoluteTransformation().translation());
/* Has to be done explicitly after the translate() above, as Magnum ->
Bullet updates are implicitly done only for kinematic bodies */
object->syncPose();
/* Create either a box or a sphere */
new ColoredDrawable{*object, _shader, _shootBox ? _box : _sphere,
_shootBox ? 0x880000_rgbf : 0x220000_rgbf,
Matrix4::scaling(Vector3{_shootBox ? 0.5f : 0.25f}), _drawables};
/* Give it an initial velocity */
object->rigidBody().setLinearVelocity(btVector3{direction*25.f});
event.setAccepted();
}
}
void CubeMapExample::viewportEvent(const Vector2i& size) {
defaultFramebuffer.setViewport({{}, size});
camera->setViewport(size);
}
void CubeMapExample::viewportEvent(ViewportEvent& event) {
GL::defaultFramebuffer.setViewport({{}, event.framebufferSize()});
_camera->setViewport(event.windowSize());
}
void CubeMap::draw(const Matrix4& transformationMatrix, SceneGraph::Camera3D& camera) {
_shader->setTransformationProjectionMatrix(camera.projectionMatrix()*transformationMatrix)
.setTexture(*_texture);
_cube->draw(*_shader);
}
void ShadowReceiverDrawable::draw(const Matrix4& transformationMatrix, SceneGraph::Camera3D& camera) {
_shader->setTransformationProjectionMatrix(camera.projectionMatrix()*transformationMatrix);
_shader->setModelMatrix(object().transformationMatrix());
_mesh->draw(*_shader);
}
