137 lines
3.8 KiB
C++
137 lines
3.8 KiB
C++
/*
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QGLView
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Copyright (C) 2019 Ivan Pelipenko peri4ko@yandex.ru
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#define GL_GLEXT_PROTOTYPES
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#include <QOpenGLExtraFunctions>
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#include "renderer_service.h"
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#include "renderer.h"
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#include "qglview.h"
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#include "glmesh.h"
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#include <qad_types.h>
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using namespace QGLEngineShaders;
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RendererService::RendererService(Renderer * r_): r(r_) {
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line_width = 1;
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axis_camera = new Camera();
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axis_camera->setAim(QVector3D());
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axis_camera->setFOV(45.);
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axis_mesh = Primitive::arrow(12);
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axis_objects.resize(3);
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const QVector3D _rot[3] = {QVector3D(0,1,0), QVector3D(-1,0,0), QVector3D(0,0,1)};
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for (int i = 0; i < 3; ++i) {
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axis_objects[i].color = QVector4D(0,0,0,1);
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axis_objects[i].color[i] = 1.;
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QMatrix4x4 m; m.rotate(90., _rot[i]);
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m.transposed().copyDataTo(axis_objects[i].modelmatrix);
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}
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box_vp_scale = 1.;
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box_mesh = Primitive::cube();
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}
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RendererService::~RendererService() {
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delete box_mesh;
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delete axis_camera;
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delete axis_mesh;
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}
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void RendererService::init(int width, int height) {
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axis_mesh->loadObjects(r->view, axis_objects);
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resize(width, height);
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}
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void RendererService::resize(int width, int height) {
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axis_viewport = preferredIconSize(10.);
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line_width = lineThickness();
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box_vp_scale = 30. * appScale() / qMax(qMin(width, height), 1);
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//qDebug() << axis_viewport;
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}
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void RendererService::fillBoxObjects() {
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box_objects.clear();
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Object o;
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QList<Light*> ll = r->view->scene()->lights_used;
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QMatrix4x4 v_mat = r->view->camera()->viewMatrix() * r->view->camera()->offsetMatrix();
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QMatrix4x4 lmat;
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double vps = tan(r->view->camera()->FOV() / 2. * deg2rad) * box_vp_scale;
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foreach (Light * l, ll) {
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QVector4D lpos = QVector4D(l->worldPos(), 1.);
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double dist = -(v_mat * lpos).z();
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lmat.translate(lpos.toVector3D());
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lmat.scale(dist * vps);
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lmat.transposed().copyDataTo(o.modelmatrix);
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box_objects << o;
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}
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}
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void RendererService::setObjectsColor(QVector<Object> & ol, QColor col) {
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QVector4D cv = QColor2QVector(col);
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for (int i = 0; i < ol.size(); ++i)
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ol[i].color = cv;
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}
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void RendererService::renderService() {
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QOpenGLShaderProgram * prog = 0;
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QOpenGLExtraFunctions * f = r->view;
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if (r->bindShader(Renderer::srService, &prog)) {
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f->glEnable(GL_MULTISAMPLE);
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glEnableDepth();
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f->glClear(GL_DEPTH_BUFFER_BIT);
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glEnableDepth();
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/// lights
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glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
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glDisable(GL_CULL_FACE);
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r->setUniformCamera(prog, r->view->camera());
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fillBoxObjects();
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setObjectsColor(box_objects, Qt::white);
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glLineWidth(line_width*3);
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box_mesh->loadObjects(f, box_objects);
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box_mesh->draw(f, box_objects.size());
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setObjectsColor(box_objects, Qt::black);
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glLineWidth(line_width);
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box_mesh->loadObjects(f, box_objects);
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box_mesh->draw(f, box_objects.size());
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glEnable(GL_CULL_FACE);
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glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
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/// axis
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f->glViewport(0, 0, axis_viewport.width(), axis_viewport.height());
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axis_camera->setPos(-r->view->camera()->direction() * 3.);
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r->setUniformCamera(prog, axis_camera, true, axis_viewport);
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//axis_mesh->loadObjects(f, axis_objects);
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axis_mesh->draw(f, axis_objects.size());
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f->glViewport(0, 0, r->view->width(), r->view->height());
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f->glDisable(GL_MULTISAMPLE);
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}
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}
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