src/gl/partrenderer.cpp

Mon, 20 Jun 2022 16:43:56 +0300

author
Teemu Piippo <teemu.s.piippo@gmail.com>
date
Mon, 20 Jun 2022 16:43:56 +0300
changeset 233
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parent 232
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child 234
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permissions
-rw-r--r--

fix various things

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1 /*
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2 * LDForge: LDraw parts authoring CAD
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3 * Copyright (C) 2013 - 2020 Teemu Piippo
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4 *
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5 * This program is free software: you can redistribute it and/or modify
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6 * it under the terms of the GNU General Public License as published by
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7 * the Free Software Foundation, either version 3 of the License, or
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8 * (at your option) any later version.
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9 *
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10 * This program is distributed in the hope that it will be useful,
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11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 * GNU General Public License for more details.
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14 *
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15 * You should have received a copy of the GNU General Public License
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16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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17 */
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18
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19 #include <glm/ext/matrix_transform.hpp>
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20 #include <glm/ext/matrix_clip_space.hpp>
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21 #include <QPainter>
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22 #include <GL/glu.h>
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23 #include <QMouseEvent>
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24 #include <QMessageBox>
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25 #include <QAbstractButton>
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26 #include "geometry.h"
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27 #include "partrenderer.h"
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28 #include "model.h"
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29 #include "gl/compiler.h"
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30
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31 static constexpr double MIN_ZOOM = -3.0;
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32 static constexpr double MAX_ZOOM = 3.0;
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33 QOpenGLFunctions glfunc;
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34
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35 PartRenderer::PartRenderer(
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36 Model* model,
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37 DocumentManager* documents,
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38 const ColorTable& colorTable,
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39 QWidget* parent) :
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40 QOpenGLWidget{parent},
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41 model{model},
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42 documents{documents},
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43 colorTable{colorTable}
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44 {
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45 this->setMouseTracking(true);
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46 this->setFocusPolicy(Qt::WheelFocus);
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47 connect(model, &Model::rowsInserted, [&]{
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48 this->needBuild = true;
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49 });
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50 connect(model, &Model::rowsRemoved, [&]{ this->needBuild = true; });
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51 const auto updateLayerMvpMatrix = [this]{
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52 const glm::mat4 newMvpMatrix = this->projectionMatrix * this->viewMatrix * this->modelMatrix;
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53 for (RenderLayer* layer : this->activeRenderLayers) {
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54 layer->mvpMatrixChanged(newMvpMatrix);
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55 }
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56 for (RenderLayer* layer : this->inactiveRenderLayers) {
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57 layer->mvpMatrixChanged(newMvpMatrix);
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58 }
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59 };
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60 connect(this, &PartRenderer::modelMatrixChanged, updateLayerMvpMatrix);
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61 connect(this, &PartRenderer::viewMatrixChanged, updateLayerMvpMatrix);
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62 connect(this, &PartRenderer::projectionMatrixChanged, updateLayerMvpMatrix);
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63 }
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64
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65 PartRenderer::~PartRenderer()
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66 {
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67 }
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68
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69 static QVector3D calcQVector3DFromQColor(const QColor& color)
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70 {
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71 return {
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72 float_cast(color.redF()),
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73 float_cast(color.greenF()),
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74 float_cast(color.blueF()),
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75 };
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76 }
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77
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78 void PartRenderer::initializeGL()
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79 {
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80 ::glfunc.initializeOpenGLFunctions();
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81 if (glGetError() != GL_NO_ERROR)
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82 {
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83 abort();
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84 }
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85 gl::initializeModelShaders(&this->shaders);
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86 for (RenderLayer* layer : this->activeRenderLayers) {
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87 layer->initializeGL();
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88 }
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89 for (RenderLayer* layer : this->inactiveRenderLayers) {
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90 layer->initializeGL();
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91 }
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92 connect(this->model, &Model::dataChanged, this, &PartRenderer::build);
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93 this->initialized = true;
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94 this->modelQuaternion = glm::angleAxis(glm::radians(30.0f), glm::vec3{-1, 0, 0});
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95 this->modelQuaternion *= glm::angleAxis(glm::radians(225.0f), glm::vec3{-0, 1, 0});
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96 this->updateModelMatrix();
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97 this->updateViewMatrix();
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98 this->update();
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99 }
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100
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101 void PartRenderer::resizeGL(int width, int height)
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102 {
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103 this->viewportVector = {0, 0, width, height};
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104 glViewport(0, 0, width, height);
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105 this->projectionMatrix = glm::perspective(
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106 glm::radians(45.0f),
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107 static_cast<float>(width) / static_cast<float>(height),
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108 0.1f,
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109 10000.f);
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110 gl::setShaderUniformMatrix(&this->shaders, "projectionMatrix", this->projectionMatrix);
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111 Q_EMIT projectionMatrixChanged(this->projectionMatrix);
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112 }
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113
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114 static constexpr GLenum getGlTypeForArrayClass(const gl::ArrayClass vboClass)
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115 {
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116 switch (vboClass)
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117 {
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118 case gl::ArrayClass::Lines:
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119 case gl::ArrayClass::ConditionalLines:
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120 return GL_LINES;
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121 case gl::ArrayClass::Triangles:
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122 return GL_TRIANGLES;
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123 case gl::ArrayClass::Quads:
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124 return GL_QUADS;
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125 }
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126 throw std::runtime_error{"bad value for vboClass"};
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127 }
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128
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129 void PartRenderer::paintGL()
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130 {
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131 glEnable(GL_DEPTH_TEST);
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132 glShadeModel(GL_SMOOTH);
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133 this->renderScene();
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134 for (RenderLayer* layer : this->activeRenderLayers) {
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135 layer->paintGL();
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136 }
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137 QPainter painter{this};
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138 for (RenderLayer* layer : this->activeRenderLayers) {
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139 layer->overpaint(&painter);
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140 }
47
cd6704009eb9 picking works now
Teemu Piippo <teemu@hecknology.net>
parents: 46
diff changeset
141 }
cd6704009eb9 picking works now
Teemu Piippo <teemu@hecknology.net>
parents: 46
diff changeset
142
cd6704009eb9 picking works now
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parents: 46
diff changeset
143 void PartRenderer::renderScene()
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parents: 46
diff changeset
144 {
86
4bec0525ef1b PolygonObjectEditor can now modify the object properly
Teemu Piippo <teemu@hecknology.net>
parents: 78
diff changeset
145 if (this->needBuild)
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Teemu Piippo <teemu@hecknology.net>
parents: 78
diff changeset
146 {
189
815fbaae9cb2 cleanup, gl::Compiler changed to gl::ModelShaders
Teemu Piippo <teemu@hecknology.net>
parents: 150
diff changeset
147 gl::build(&this->shaders, this->model, this->colorTable, this->documents, this->renderPreferences);
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parents: 150
diff changeset
148 this->boundingBox = gl::boundingBoxForModel(this->model, this->documents);
86
4bec0525ef1b PolygonObjectEditor can now modify the object properly
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diff changeset
149 this->needBuild = false;
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diff changeset
150 }
53
3af627f7a40f added grid program
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diff changeset
151 this->checkForGLErrors();
189
815fbaae9cb2 cleanup, gl::Compiler changed to gl::ModelShaders
Teemu Piippo <teemu@hecknology.net>
parents: 150
diff changeset
152 if (true
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Teemu Piippo <teemu@hecknology.net>
parents: 150
diff changeset
153 and this->renderPreferences.lineAntiAliasing
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Teemu Piippo <teemu@hecknology.net>
parents: 150
diff changeset
154 and this->renderPreferences.style != gl::RenderStyle::PickScene
815fbaae9cb2 cleanup, gl::Compiler changed to gl::ModelShaders
Teemu Piippo <teemu@hecknology.net>
parents: 150
diff changeset
155 ) {
45
272c84c7c87e added configurable line anti-aliasing
Teemu Piippo <teemu@hecknology.net>
parents: 44
diff changeset
156 glEnable(GL_LINE_SMOOTH);
272c84c7c87e added configurable line anti-aliasing
Teemu Piippo <teemu@hecknology.net>
parents: 44
diff changeset
157 glHint(GL_LINE_SMOOTH_HINT, GL_NICEST);
272c84c7c87e added configurable line anti-aliasing
Teemu Piippo <teemu@hecknology.net>
parents: 44
diff changeset
158 }
272c84c7c87e added configurable line anti-aliasing
Teemu Piippo <teemu@hecknology.net>
parents: 44
diff changeset
159 else {
272c84c7c87e added configurable line anti-aliasing
Teemu Piippo <teemu@hecknology.net>
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diff changeset
160 glDisable(GL_LINE_SMOOTH);
272c84c7c87e added configurable line anti-aliasing
Teemu Piippo <teemu@hecknology.net>
parents: 44
diff changeset
161 }
46
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diff changeset
162 if (this->renderPreferences.style != gl::RenderStyle::PickScene)
98645c8e7704 added the pick scene
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parents: 45
diff changeset
163 {
47
cd6704009eb9 picking works now
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diff changeset
164 const QColor& backgroundColor = this->renderPreferences.backgroundColor;
46
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Teemu Piippo <teemu@hecknology.net>
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diff changeset
165 glClearColor(
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diff changeset
166 static_cast<float>(backgroundColor.redF()),
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Teemu Piippo <teemu@hecknology.net>
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diff changeset
167 static_cast<float>(backgroundColor.greenF()),
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diff changeset
168 static_cast<float>(backgroundColor.blueF()),
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parents: 45
diff changeset
169 1.0f);
189
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diff changeset
170 gl::setShaderUniform(&this->shaders, "useLighting", GL_TRUE);
46
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diff changeset
171 }
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diff changeset
172 else
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parents: 45
diff changeset
173 {
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diff changeset
174 glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
189
815fbaae9cb2 cleanup, gl::Compiler changed to gl::ModelShaders
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diff changeset
175 gl::setShaderUniform(&this->shaders, "useLighting", GL_FALSE);
46
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diff changeset
176 }
53
3af627f7a40f added grid program
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diff changeset
177 this->checkForGLErrors();
189
815fbaae9cb2 cleanup, gl::Compiler changed to gl::ModelShaders
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diff changeset
178 const QVector3D color = calcQVector3DFromQColor(this->renderPreferences.selectedColor);
815fbaae9cb2 cleanup, gl::Compiler changed to gl::ModelShaders
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parents: 150
diff changeset
179 gl::setShaderUniform(&this->shaders, "selectedColor", color);
815fbaae9cb2 cleanup, gl::Compiler changed to gl::ModelShaders
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parents: 150
diff changeset
180 gl::setShaderUniform(&this->shaders, "highlighted", this->highlighted.value);
51
1a9eac27698d selection works now
Teemu Piippo <teemu@hecknology.net>
parents: 48
diff changeset
181 this->checkForGLErrors();
26
3a9e761e4faa at least VAOs work now
Teemu Piippo <teemu@hecknology.net>
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diff changeset
182 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
3a9e761e4faa at least VAOs work now
Teemu Piippo <teemu@hecknology.net>
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diff changeset
183 glEnable(GL_DEPTH_TEST);
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Teemu Piippo <teemu@hecknology.net>
parents: 24
diff changeset
184 glEnable(GL_POLYGON_OFFSET_FILL);
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Teemu Piippo <teemu@hecknology.net>
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diff changeset
185 glPolygonOffset(1.0f, 1.0f);
44
c6114b3af3a6 added configurable line thickness
Teemu Piippo <teemu@hecknology.net>
parents: 40
diff changeset
186 glLineWidth(this->renderPreferences.lineThickness);
189
815fbaae9cb2 cleanup, gl::Compiler changed to gl::ModelShaders
Teemu Piippo <teemu@hecknology.net>
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diff changeset
187 const auto renderAllArrays = [this](){
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Teemu Piippo <teemu@hecknology.net>
parents: 150
diff changeset
188 // Lines need to be rendered last so that anti-aliasing does not interfere with polygon rendering.
815fbaae9cb2 cleanup, gl::Compiler changed to gl::ModelShaders
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parents: 150
diff changeset
189 this->renderVao(gl::ArrayClass::Triangles);
815fbaae9cb2 cleanup, gl::Compiler changed to gl::ModelShaders
Teemu Piippo <teemu@hecknology.net>
parents: 150
diff changeset
190 this->renderVao(gl::ArrayClass::Quads);
815fbaae9cb2 cleanup, gl::Compiler changed to gl::ModelShaders
Teemu Piippo <teemu@hecknology.net>
parents: 150
diff changeset
191 this->renderVao(gl::ArrayClass::Lines);
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Teemu Piippo <teemu@hecknology.net>
parents: 150
diff changeset
192 };
231
a9bf6bab5ea2 Add wireframe button
Teemu Piippo <teemu.s.piippo@gmail.com>
parents: 217
diff changeset
193 if (this->renderPreferences.wireframe and this->renderPreferences.style != gl::RenderStyle::PickScene) {
a9bf6bab5ea2 Add wireframe button
Teemu Piippo <teemu.s.piippo@gmail.com>
parents: 217
diff changeset
194 glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
a9bf6bab5ea2 Add wireframe button
Teemu Piippo <teemu.s.piippo@gmail.com>
parents: 217
diff changeset
195 }
39
caac957e9834 Main color is now configurable
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parents: 37
diff changeset
196 switch (this->renderPreferences.style)
18
Teemu Piippo <teemu@hecknology.net>
parents: 17
diff changeset
197 {
Teemu Piippo <teemu@hecknology.net>
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diff changeset
198 case gl::RenderStyle::Normal:
37
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diff changeset
199 this->setFragmentStyle(gl::FragmentStyle::Normal);
189
815fbaae9cb2 cleanup, gl::Compiler changed to gl::ModelShaders
Teemu Piippo <teemu@hecknology.net>
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diff changeset
200 renderAllArrays();
37
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diff changeset
201 break;
18
Teemu Piippo <teemu@hecknology.net>
parents: 17
diff changeset
202 case gl::RenderStyle::BfcRedGreen:
37
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Teemu Piippo <teemu@hecknology.net>
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diff changeset
203 glEnable(GL_CULL_FACE);
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diff changeset
204 glCullFace(GL_BACK);
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Teemu Piippo <teemu@hecknology.net>
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diff changeset
205 this->setFragmentStyle(gl::FragmentStyle::BfcGreen);
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Teemu Piippo <teemu@hecknology.net>
parents: 35
diff changeset
206 renderVao(gl::ArrayClass::Triangles);
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Teemu Piippo <teemu@hecknology.net>
parents: 35
diff changeset
207 renderVao(gl::ArrayClass::Quads);
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Teemu Piippo <teemu@hecknology.net>
parents: 35
diff changeset
208 glCullFace(GL_FRONT);
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parents: 35
diff changeset
209 this->setFragmentStyle(gl::FragmentStyle::BfcRed);
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Teemu Piippo <teemu@hecknology.net>
parents: 35
diff changeset
210 renderVao(gl::ArrayClass::Triangles);
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Teemu Piippo <teemu@hecknology.net>
parents: 35
diff changeset
211 renderVao(gl::ArrayClass::Quads);
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parents: 35
diff changeset
212 glDisable(GL_CULL_FACE);
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parents: 35
diff changeset
213 this->setFragmentStyle(gl::FragmentStyle::Normal);
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parents: 35
diff changeset
214 renderVao(gl::ArrayClass::Lines);
189
815fbaae9cb2 cleanup, gl::Compiler changed to gl::ModelShaders
Teemu Piippo <teemu@hecknology.net>
parents: 150
diff changeset
215 break;
18
Teemu Piippo <teemu@hecknology.net>
parents: 17
diff changeset
216 case gl::RenderStyle::RandomColors:
37
90443fb328ea wired renderstyle up
Teemu Piippo <teemu@hecknology.net>
parents: 35
diff changeset
217 this->setFragmentStyle(gl::FragmentStyle::RandomColors);
189
815fbaae9cb2 cleanup, gl::Compiler changed to gl::ModelShaders
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parents: 150
diff changeset
218 renderAllArrays();
18
Teemu Piippo <teemu@hecknology.net>
parents: 17
diff changeset
219 break;
46
98645c8e7704 added the pick scene
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parents: 45
diff changeset
220 case gl::RenderStyle::PickScene:
98645c8e7704 added the pick scene
Teemu Piippo <teemu@hecknology.net>
parents: 45
diff changeset
221 glLineWidth(3.0f);
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diff changeset
222 this->setFragmentStyle(gl::FragmentStyle::Id);
189
815fbaae9cb2 cleanup, gl::Compiler changed to gl::ModelShaders
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parents: 150
diff changeset
223 renderAllArrays();
46
98645c8e7704 added the pick scene
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parents: 45
diff changeset
224 break;
119
Teemu Piippo <teemu@hecknology.net>
parents: 112
diff changeset
225 case gl::RenderStyle::VertexPickScene:
Teemu Piippo <teemu@hecknology.net>
parents: 112
diff changeset
226 glLineWidth(1.0f);
Teemu Piippo <teemu@hecknology.net>
parents: 112
diff changeset
227 this->setFragmentStyle(gl::FragmentStyle::Black);
189
815fbaae9cb2 cleanup, gl::Compiler changed to gl::ModelShaders
Teemu Piippo <teemu@hecknology.net>
parents: 150
diff changeset
228 renderAllArrays();
119
Teemu Piippo <teemu@hecknology.net>
parents: 112
diff changeset
229 break;
18
Teemu Piippo <teemu@hecknology.net>
parents: 17
diff changeset
230 }
37
90443fb328ea wired renderstyle up
Teemu Piippo <teemu@hecknology.net>
parents: 35
diff changeset
231 glDisable(GL_POLYGON_OFFSET_FILL);
231
a9bf6bab5ea2 Add wireframe button
Teemu Piippo <teemu.s.piippo@gmail.com>
parents: 217
diff changeset
232 glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
37
90443fb328ea wired renderstyle up
Teemu Piippo <teemu@hecknology.net>
parents: 35
diff changeset
233 }
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parents: 35
diff changeset
234
90443fb328ea wired renderstyle up
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diff changeset
235
31
b6df269a2c6b fix remaining rendering control issues
Teemu Piippo <teemu@hecknology.net>
parents: 30
diff changeset
236 void PartRenderer::updateViewMatrix()
b6df269a2c6b fix remaining rendering control issues
Teemu Piippo <teemu@hecknology.net>
parents: 30
diff changeset
237 {
b6df269a2c6b fix remaining rendering control issues
Teemu Piippo <teemu@hecknology.net>
parents: 30
diff changeset
238 // I'm not quite sure why using the exponent function on the zoom factor causes linear zoom behavior
189
815fbaae9cb2 cleanup, gl::Compiler changed to gl::ModelShaders
Teemu Piippo <teemu@hecknology.net>
parents: 150
diff changeset
239 const float modelDistance = longestMeasure(this->boundingBox);
815fbaae9cb2 cleanup, gl::Compiler changed to gl::ModelShaders
Teemu Piippo <teemu@hecknology.net>
parents: 150
diff changeset
240 const double z = 2.0 * std::exp(this->zoom) * (1 + static_cast<double>(modelDistance));
31
b6df269a2c6b fix remaining rendering control issues
Teemu Piippo <teemu@hecknology.net>
parents: 30
diff changeset
241 this->viewMatrix = glm::lookAt(glm::vec3{0, 0, z}, {0, 0, 0}, {0, -1, 0});
189
815fbaae9cb2 cleanup, gl::Compiler changed to gl::ModelShaders
Teemu Piippo <teemu@hecknology.net>
parents: 150
diff changeset
242 gl::setShaderUniformMatrix(&this->shaders, "viewMatrix", this->viewMatrix);
112
5760cbb32bc0 use QT_NO_KEYWORDS
Teemu Piippo <teemu@hecknology.net>
parents: 111
diff changeset
243 Q_EMIT this->viewMatrixChanged(this->viewMatrix);
31
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Teemu Piippo <teemu@hecknology.net>
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diff changeset
244 }
b6df269a2c6b fix remaining rendering control issues
Teemu Piippo <teemu@hecknology.net>
parents: 30
diff changeset
245
55
cb81ecb5fb23 grid stuff
Teemu Piippo <teemu@hecknology.net>
parents: 53
diff changeset
246 void PartRenderer::updateModelMatrix()
cb81ecb5fb23 grid stuff
Teemu Piippo <teemu@hecknology.net>
parents: 53
diff changeset
247 {
61
4585d8d7a7ec moved GridProgram to Canvas
Teemu Piippo <teemu@hecknology.net>
parents: 60
diff changeset
248 this->modelMatrix = glm::mat4_cast(this->modelQuaternion);
189
815fbaae9cb2 cleanup, gl::Compiler changed to gl::ModelShaders
Teemu Piippo <teemu@hecknology.net>
parents: 150
diff changeset
249 gl::setShaderUniformMatrix(&this->shaders, "modelMatrix", modelMatrix);
112
5760cbb32bc0 use QT_NO_KEYWORDS
Teemu Piippo <teemu@hecknology.net>
parents: 111
diff changeset
250 Q_EMIT this->modelMatrixChanged(this->modelMatrix);
55
cb81ecb5fb23 grid stuff
Teemu Piippo <teemu@hecknology.net>
parents: 53
diff changeset
251 this->update();
cb81ecb5fb23 grid stuff
Teemu Piippo <teemu@hecknology.net>
parents: 53
diff changeset
252 }
cb81ecb5fb23 grid stuff
Teemu Piippo <teemu@hecknology.net>
parents: 53
diff changeset
253
86
4bec0525ef1b PolygonObjectEditor can now modify the object properly
Teemu Piippo <teemu@hecknology.net>
parents: 78
diff changeset
254 void PartRenderer::build()
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Teemu Piippo <teemu@hecknology.net>
parents: 78
diff changeset
255 {
4bec0525ef1b PolygonObjectEditor can now modify the object properly
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parents: 78
diff changeset
256 this->needBuild = true;
4bec0525ef1b PolygonObjectEditor can now modify the object properly
Teemu Piippo <teemu@hecknology.net>
parents: 78
diff changeset
257 }
4bec0525ef1b PolygonObjectEditor can now modify the object properly
Teemu Piippo <teemu@hecknology.net>
parents: 78
diff changeset
258
27
c57fb7a5ffa3 commit work done on plugging vao to the gl renderer, renders nonsense for now
Teemu Piippo <teemu@hecknology.net>
parents: 26
diff changeset
259 void PartRenderer::renderVao(const gl::ArrayClass arrayClass)
26
3a9e761e4faa at least VAOs work now
Teemu Piippo <teemu@hecknology.net>
parents: 24
diff changeset
260 {
189
815fbaae9cb2 cleanup, gl::Compiler changed to gl::ModelShaders
Teemu Piippo <teemu@hecknology.net>
parents: 150
diff changeset
261 gl::bindModelShaderVertexArray(&this->shaders, arrayClass);
815fbaae9cb2 cleanup, gl::Compiler changed to gl::ModelShaders
Teemu Piippo <teemu@hecknology.net>
parents: 150
diff changeset
262 const std::size_t vertexCount = gl::vertexCount(&this->shaders, arrayClass);
51
1a9eac27698d selection works now
Teemu Piippo <teemu@hecknology.net>
parents: 48
diff changeset
263 this->checkForGLErrors();
26
3a9e761e4faa at least VAOs work now
Teemu Piippo <teemu@hecknology.net>
parents: 24
diff changeset
264 glDrawArrays(getGlTypeForArrayClass(arrayClass), 0, static_cast<GLsizei>(vertexCount));
51
1a9eac27698d selection works now
Teemu Piippo <teemu@hecknology.net>
parents: 48
diff changeset
265 this->checkForGLErrors();
189
815fbaae9cb2 cleanup, gl::Compiler changed to gl::ModelShaders
Teemu Piippo <teemu@hecknology.net>
parents: 150
diff changeset
266 gl::releaseModelShaderVertexArray(&this->shaders, arrayClass);
26
3a9e761e4faa at least VAOs work now
Teemu Piippo <teemu@hecknology.net>
parents: 24
diff changeset
267 this->checkForGLErrors();
3a9e761e4faa at least VAOs work now
Teemu Piippo <teemu@hecknology.net>
parents: 24
diff changeset
268 }
3a9e761e4faa at least VAOs work now
Teemu Piippo <teemu@hecknology.net>
parents: 24
diff changeset
269
3a9e761e4faa at least VAOs work now
Teemu Piippo <teemu@hecknology.net>
parents: 24
diff changeset
270 void PartRenderer::checkForGLErrors()
3a9e761e4faa at least VAOs work now
Teemu Piippo <teemu@hecknology.net>
parents: 24
diff changeset
271 {
53
3af627f7a40f added grid program
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parents: 51
diff changeset
272 gl::checkForGLErrors(this);
3af627f7a40f added grid program
Teemu Piippo <teemu@hecknology.net>
parents: 51
diff changeset
273 }
3af627f7a40f added grid program
Teemu Piippo <teemu@hecknology.net>
parents: 51
diff changeset
274
3af627f7a40f added grid program
Teemu Piippo <teemu@hecknology.net>
parents: 51
diff changeset
275 void gl::checkForGLErrors(QWidget* parent)
3af627f7a40f added grid program
Teemu Piippo <teemu@hecknology.net>
parents: 51
diff changeset
276 {
26
3a9e761e4faa at least VAOs work now
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parents: 24
diff changeset
277 GLenum glError;
3a9e761e4faa at least VAOs work now
Teemu Piippo <teemu@hecknology.net>
parents: 24
diff changeset
278 QStringList errors;
3a9e761e4faa at least VAOs work now
Teemu Piippo <teemu@hecknology.net>
parents: 24
diff changeset
279 while ((glError = glGetError()) != GL_NO_ERROR)
21
Teemu Piippo <teemu@hecknology.net>
parents: 18
diff changeset
280 {
100
43ce3672648a fix build
Teemu Piippo <teemu@hecknology.net>
parents: 92
diff changeset
281 const QString glErrorString = QString::fromLatin1(reinterpret_cast<const char*>(gluErrorString(glError)));
26
3a9e761e4faa at least VAOs work now
Teemu Piippo <teemu@hecknology.net>
parents: 24
diff changeset
282 errors.append(glErrorString);
3a9e761e4faa at least VAOs work now
Teemu Piippo <teemu@hecknology.net>
parents: 24
diff changeset
283 }
3a9e761e4faa at least VAOs work now
Teemu Piippo <teemu@hecknology.net>
parents: 24
diff changeset
284 if (not errors.isEmpty())
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285 {
53
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286 QMessageBox box{parent};
47
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287 box.setIcon(QMessageBox::Critical);
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288 box.setText(QObject::tr("OpenGL error: %1").arg(errors.join("\n")));
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289 box.setWindowTitle(QObject::tr("OpenGL error"));
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290 box.setStandardButtons(QMessageBox::Close);
53
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291 box.button(QMessageBox::Close)->setText(QObject::tr("Damn it"));
47
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292 box.exec();
21
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293 }
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294 }
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295
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296 void PartRenderer::mouseMoveEvent(QMouseEvent* event)
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297 {
232
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298 if (not this->frozen) {
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299 const bool left = event->buttons() & Qt::LeftButton;
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300 const QPoint move = event->pos() - this->lastMousePosition;
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301 this->totalMouseMove += move.manhattanLength();
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302 if (left and not move.isNull())
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303 {
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304 // q_x is the rotation of the brick along the vertical y-axis, because turning the
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305 // vertical axis causes horizontal (=x) rotation. Likewise q_y is the rotation of the
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306 // brick along the horizontal x-axis, which causes vertical rotation.
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307 const auto scalar = 0.006f;
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308 const float move_x = static_cast<float>(move.x());
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309 const float move_y = static_cast<float>(move.y());
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310 const glm::quat q_x = glm::angleAxis(scalar * move_x, glm::vec3{0, -1, 0});
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311 const glm::quat q_y = glm::angleAxis(scalar * move_y, glm::vec3{-1, 0, 0});
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312 this->modelQuaternion = q_x * q_y * this->modelQuaternion;
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313 this->updateModelMatrix();
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314 }
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315 this->lastMousePosition = event->pos();
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316 for (RenderLayer* layer : this->activeRenderLayers) {
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317 layer->mouseMoved(event);
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318 }
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319 this->update();
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320 }
217
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321 }
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322
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323 void PartRenderer::mousePressEvent(QMouseEvent* event)
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324 {
232
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325 if (not this->frozen) {
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326 this->totalMouseMove = 0;
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327 this->lastMousePosition = event->pos();
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328 }
217
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329 }
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330
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331 void PartRenderer::mouseReleaseEvent(QMouseEvent* event)
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332 {
232
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333 if (not frozen and this->totalMouseMove < (2.0 / sqrt(2)) * 5.0)
217
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334 {
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335 for (RenderLayer* layer : this->activeRenderLayers) {
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336 layer->mouseClick(event);
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337 }
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338 this->update();
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339 }
17
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340 }
18
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341
232
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342 void PartRenderer::keyReleaseEvent(QKeyEvent* event)
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343 {
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344 if (event->key() == Qt::Key_Pause) {
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345 this->frozen = not this->frozen;
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346 }
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347 }
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348
31
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349 void PartRenderer::wheelEvent(QWheelEvent* event)
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350 {
232
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351 if (not this->frozen) {
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352 static constexpr double WHEEL_STEP = 1 / 1000.0;
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353 const double move = (-event->angleDelta().y()) * WHEEL_STEP;
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354 this->zoom = std::clamp(this->zoom + move, MIN_ZOOM, MAX_ZOOM);
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355 this->updateViewMatrix();
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356 this->update();
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357 }
31
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358 }
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359
215
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diff changeset
360 void PartRenderer::addRenderLayer(RenderLayer* layer)
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diff changeset
361 {
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diff changeset
362 this->activeRenderLayers.push_back(layer);
217
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diff changeset
363 layer->setRendererPointer(this);
215
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diff changeset
364 this->update();
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365 }
34c6e7bc4ee1 Reimplement the axes program as a layer that can be added to PartRenderer
Teemu Piippo <teemu.s.piippo@gmail.com>
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diff changeset
366
34c6e7bc4ee1 Reimplement the axes program as a layer that can be added to PartRenderer
Teemu Piippo <teemu.s.piippo@gmail.com>
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diff changeset
367 void PartRenderer::setLayerEnabled(RenderLayer* layer, bool enabled)
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diff changeset
368 {
34c6e7bc4ee1 Reimplement the axes program as a layer that can be added to PartRenderer
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diff changeset
369 auto& from = enabled ? this->inactiveRenderLayers : this->activeRenderLayers;
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Teemu Piippo <teemu.s.piippo@gmail.com>
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diff changeset
370 auto& to = enabled ? this->activeRenderLayers : this->inactiveRenderLayers;
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parents: 206
diff changeset
371 auto it = std::find(from.begin(), from.end(), layer);
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Teemu Piippo <teemu.s.piippo@gmail.com>
parents: 206
diff changeset
372 if (it != from.end()) {
34c6e7bc4ee1 Reimplement the axes program as a layer that can be added to PartRenderer
Teemu Piippo <teemu.s.piippo@gmail.com>
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diff changeset
373 from.erase(it);
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Teemu Piippo <teemu.s.piippo@gmail.com>
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diff changeset
374 to.push_back(layer);
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diff changeset
375 }
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Teemu Piippo <teemu.s.piippo@gmail.com>
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diff changeset
376 }
34c6e7bc4ee1 Reimplement the axes program as a layer that can be added to PartRenderer
Teemu Piippo <teemu.s.piippo@gmail.com>
parents: 206
diff changeset
377
58
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Teemu Piippo <teemu@hecknology.net>
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diff changeset
378 /**
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379 * @brief Converts the specified on the screen into the 3D world. The point is unprojected twice into 3D and the
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diff changeset
380 * intersection of the resulting line with the specified plane is returned. If the intersection point lies behind
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diff changeset
381 * the camera, no value is returned.
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diff changeset
382 * @param point 2D window co-ordinates to convert.
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diff changeset
383 * @param plane Plane to raycast against
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diff changeset
384 * @return world co-ordinates, or no value if the point is behind the camera.
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Teemu Piippo <teemu@hecknology.net>
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diff changeset
385 */
206
654661eab7f3 More refactor, merged main.h, basics.h and utility.h into one header file basics.h and removed plenty of unused code
Teemu Piippo <teemu@hecknology.net>
parents: 205
diff changeset
386 std::optional<glm::vec3> PartRenderer::screenToModelCoordinates(const QPointF& point, const Plane& plane) const
55
cb81ecb5fb23 grid stuff
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diff changeset
387 {
201
5d201ee4a9c3 Continue giant refactor
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diff changeset
388 const Line line = this->cameraLine(point);
58
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diff changeset
389 std::optional<glm::vec3> result;
201
5d201ee4a9c3 Continue giant refactor
Teemu Piippo <teemu@hecknology.net>
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diff changeset
390 result = linePlaneIntersection(line, plane, 0.01f);
59
60650929dc82 fixed testing of whether screenToModelCoordinates's result value is behind the camera
Teemu Piippo <teemu@hecknology.net>
parents: 58
diff changeset
391 // If the point lies behind the camera, do not return a result.
66
77c819262b7a added a method to find out if the view is perpendicular to grid
Teemu Piippo <teemu@hecknology.net>
parents: 61
diff changeset
392 if (result.has_value() and glm::dot(line.direction, *result - line.anchor) < 0)
58
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Teemu Piippo <teemu@hecknology.net>
parents: 57
diff changeset
393 {
59
60650929dc82 fixed testing of whether screenToModelCoordinates's result value is behind the camera
Teemu Piippo <teemu@hecknology.net>
parents: 58
diff changeset
394 result.reset();
58
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diff changeset
395 }
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Teemu Piippo <teemu@hecknology.net>
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diff changeset
396 return result;
55
cb81ecb5fb23 grid stuff
Teemu Piippo <teemu@hecknology.net>
parents: 53
diff changeset
397 }
cb81ecb5fb23 grid stuff
Teemu Piippo <teemu@hecknology.net>
parents: 53
diff changeset
398
58
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Teemu Piippo <teemu@hecknology.net>
parents: 57
diff changeset
399 /**
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Teemu Piippo <teemu@hecknology.net>
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diff changeset
400 * @brief Converts the specified point to 2D window coordinates, with Y-coordinate inverted for Qt
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Teemu Piippo <teemu@hecknology.net>
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diff changeset
401 * @param point Point to unproject
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Teemu Piippo <teemu@hecknology.net>
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diff changeset
402 * @return screen coordinates
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Teemu Piippo <teemu@hecknology.net>
parents: 57
diff changeset
403 */
66
77c819262b7a added a method to find out if the view is perpendicular to grid
Teemu Piippo <teemu@hecknology.net>
parents: 61
diff changeset
404 QPointF PartRenderer::modelToScreenCoordinates(const glm::vec3& point) const
55
cb81ecb5fb23 grid stuff
Teemu Piippo <teemu@hecknology.net>
parents: 53
diff changeset
405 {
58
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diff changeset
406 const glm::vec3 projected = glm::project(
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Teemu Piippo <teemu@hecknology.net>
parents: 57
diff changeset
407 point,
217
6d95c1a41e6e reimplement EditTools as a render layer
Teemu Piippo <teemu.s.piippo@gmail.com>
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diff changeset
408 this->viewMatrix * this->modelMatrix,
58
b7841cd31fb7 use glm::project instead of figuring out the conversion manually...
Teemu Piippo <teemu@hecknology.net>
parents: 57
diff changeset
409 this->projectionMatrix,
b7841cd31fb7 use glm::project instead of figuring out the conversion manually...
Teemu Piippo <teemu@hecknology.net>
parents: 57
diff changeset
410 this->viewportVector);
60
0f221121849b fixed warning
Teemu Piippo <teemu@hecknology.net>
parents: 59
diff changeset
411 return toQPointF(glm::vec2{projected.x, this->height() - projected.y});
55
cb81ecb5fb23 grid stuff
Teemu Piippo <teemu@hecknology.net>
parents: 53
diff changeset
412 }
cb81ecb5fb23 grid stuff
Teemu Piippo <teemu@hecknology.net>
parents: 53
diff changeset
413
217
6d95c1a41e6e reimplement EditTools as a render layer
Teemu Piippo <teemu.s.piippo@gmail.com>
parents: 215
diff changeset
414 bool PartRenderer::isDark() const
6d95c1a41e6e reimplement EditTools as a render layer
Teemu Piippo <teemu.s.piippo@gmail.com>
parents: 215
diff changeset
415 {
6d95c1a41e6e reimplement EditTools as a render layer
Teemu Piippo <teemu.s.piippo@gmail.com>
parents: 215
diff changeset
416 return luma(this->renderPreferences.backgroundColor) < 0.25;
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417 }
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418
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419 Line<3> PartRenderer::cameraLine(const QPointF& point) const
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420 {
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421 const glm::vec3 p1 = this->unproject({point.x(), point.y(), 0});
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422 const glm::vec3 p2 = this->unproject({point.x(), point.y(), 1});
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423 return lineFromPoints(p1, p2);
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424 }
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425
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426 /**
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427 * @brief Unprojects the specified window coordinates to model coordinates
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428 * @param win Window coordinates to project. Z-coordinate indicates depth
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429 * @return model coordinates
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430 */
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431 glm::vec3 PartRenderer::unproject(const glm::vec3& win) const
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432 {
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433 return glm::unProject(
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434 glm::vec3{win.x, this->height() - win.y, win.z},
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435 this->viewMatrix * this->modelMatrix,
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436 this->projectionMatrix,
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437 viewportVector);
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438 }
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439
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440 ModelId PartRenderer::pick(QPoint where)
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441 {
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442 // y is flipped, take that into account
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443 where.setY(this->height() - where.y());
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444 // Since we are dealing with pixel data right from the framebuffer, its size
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445 // will be affected by High DPI scaling. We need to take this into account
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446 // and multiply the pixel positions by the screen pixel scaling factor.
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447 where *= this->devicePixelRatioF();
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448 const gl::RenderStyle oldRenderStyle = this->renderPreferences.style;
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449 this->renderPreferences.style = gl::RenderStyle::PickScene;
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450 this->makeCurrent();
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451 this->renderScene();
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452 std::array<GLubyte, 3> data;
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453 this->checkForGLErrors();
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454 glfunc.glReadPixels(where.x(), where.y(), 1, 1, GL_RGB, GL_UNSIGNED_BYTE, &data[0]);
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455 this->checkForGLErrors();
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456 this->renderPreferences.style = oldRenderStyle;
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457 this->update();
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458 return gl::idFromColor(data);
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459 }
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460
37
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461 /**
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462 * @brief Changes the color of rendered fragments
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463 * @param newFragmentStyle new fragment style to use
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464 */
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465 void PartRenderer::setFragmentStyle(gl::FragmentStyle newFragmentStyle)
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466 {
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467 gl::setShaderUniform(&this->shaders, "fragmentStyle", static_cast<int>(newFragmentStyle));
37
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468 }
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469
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470 /**
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471 * @brief Changes the way the scene is rendered
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472 * @param newStyle new render style to use
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473 */
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474 void PartRenderer::setRenderPreferences(const gl::RenderPreferences& newPreferences)
18
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475 {
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476 bool mainColorChanged = this->renderPreferences.mainColor != newPreferences.mainColor;
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477 bool backgroundColorChanged = this->renderPreferences.backgroundColor != newPreferences.backgroundColor;
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478 this->renderPreferences = newPreferences;
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479 if (mainColorChanged or backgroundColorChanged)
39
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480 {
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4bec0525ef1b PolygonObjectEditor can now modify the object properly
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481 this->build();
39
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482 }
112
5760cbb32bc0 use QT_NO_KEYWORDS
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483 Q_EMIT this->renderPreferencesChanged();
18
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484 this->update();
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485 }
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486
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487 /**
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488 * @return the currently highlighted object
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489 */
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490 ModelId PartRenderer::getHighlightedObject() const
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491 {
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492 return this->highlighted;
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493 }
217
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494
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495 void PartRenderer::setSelection(const QSet<ModelId>& selection)
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496 {
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497 Q_ASSERT(not selection.contains({0}));
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498 gl::setModelShaderSelectedObjects(&this->shaders, selection);
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499 this->update();
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500 }

mercurial