110 lines
2.8 KiB
C++
110 lines
2.8 KiB
C++
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#include "OpenGLPart.h"
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#include <QDir>
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#include <cmath>
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#include "OpenGLRenderer.h"
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#include "OpenGLShaderProgram.h"
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#include "CameraDefinition.h"
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#include "AtmosphereDefinition.h"
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#include "AtmosphereRenderer.h"
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#include "WaterRenderer.h"
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#include "Scenery.h"
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OpenGLPart::OpenGLPart(OpenGLRenderer* renderer):
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renderer(renderer)
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{
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}
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OpenGLPart::~OpenGLPart()
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{
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QMapIterator<QString, OpenGLShaderProgram*> i(shaders);
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while (i.hasNext())
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{
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i.next();
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delete i.value();
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}
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}
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OpenGLShaderProgram* OpenGLPart::createShader(QString name)
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{
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OpenGLShaderProgram* program = new OpenGLShaderProgram(name, renderer->getOpenGlFunctions());
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if (!shaders.contains(name))
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{
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shaders[name] = program;
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return program;
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}
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else
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{
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return 0;
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}
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}
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void OpenGLPart::postInitialize()
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{
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QMapIterator<QString, OpenGLShaderProgram*> i(shaders);
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while (i.hasNext())
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{
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i.next();
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i.value()->compile();
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}
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}
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void OpenGLPart::updateCamera(CameraDefinition* camera)
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{
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// Get camera info
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Vector3 location = camera->getLocation();
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Vector3 target = camera->getTarget();
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Vector3 up = camera->getUpVector();
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CameraPerspective perspective = camera->getPerspective();
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QVector3D vlocation(location.x, location.y, location.z);
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// Compute matrix
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QMatrix4x4 transform;
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transform.setToIdentity();
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transform.lookAt(vlocation,
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QVector3D(target.x, target.y, target.z),
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QVector3D(up.x, up.y, up.z));
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QMatrix4x4 projection;
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projection.setToIdentity();
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projection.perspective(perspective.yfov * 180.0 / M_PI, perspective.xratio, perspective.znear, perspective.zfar);
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// Set in shaders
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QMapIterator<QString, OpenGLShaderProgram*> i(shaders);
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while (i.hasNext())
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{
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i.next();
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i.value()->updateCamera(vlocation, projection * transform);
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}
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}
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void OpenGLPart::updateScenery(bool onlyCommon)
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{
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Scenery* scenery = renderer->getScenery();
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// Collect common info
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double water_height = renderer->getWaterRenderer()->getHeightInfo().max_height;
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Vector3 orig_sun_direction = renderer->getAtmosphereRenderer()->getSunDirection();
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QVector3D sun_direction = QVector3D(orig_sun_direction.x, orig_sun_direction.y, orig_sun_direction.z);
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Color orig_sun_color = scenery->getAtmosphere()->sun_color;
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QColor sun_color = QColor(orig_sun_color.r, orig_sun_color.g, orig_sun_color.b);
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// Update shaders
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QMapIterator<QString, OpenGLShaderProgram*> i(shaders);
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while (i.hasNext())
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{
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i.next();
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i.value()->updateWaterHeight(water_height);
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i.value()->updateSun(sun_direction, sun_color);
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}
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// Let subclass do its own collecting
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if (not onlyCommon)
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{
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update();
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}
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}
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