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[UI][FIX] Fix thumbnail camera position

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Linloir 2022-12-20 08:48:39 +08:00
parent 281c424b87
commit c2c11c689f
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1 changed files with 13 additions and 1 deletions
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14
FinalProject/modelthumbnailwidget.cpp
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@ -1,5 +1,6 @@
#include <qfile.h>
#include <qdir.h>
#include <algorithm>
#include "modelthumbnailwidget.h"
@ -56,7 +57,18 @@ void ModelThumbnailWidget::initializeGL() {
fragmentShader.dispose();
_object.setModel(_model->copyToCurrentContext());
_camera.setPosition(glm::vec3(0.0f, 0.0f, 7.0f));
_object.updateBoundary();
// Move the camera to the right position
float viewportWidth = width();
float viewportHeight = height();
float fovy = _camera.fovy();
float fovx = 2.0f * atanf(tanf(fovy / 2.0f) * viewportWidth / viewportHeight);
float objectHeight = _object.boundary().topControlPoint().y - _object.boundary().bottomControlPoint().y;
float objectWidth = _object.boundary().topControlPoint().x - _object.boundary().bottomControlPoint().x;
float distance = std::max(objectHeight / (2 * tan(fovy / 2)), objectWidth / (2 * tan(fovx / 2)));
glm::vec2 center = _object.boundary().centerPoint();
_camera.setPosition(glm::vec3(center, _object.boundary().topControlPoint().z + distance + 3.0f));
}
void ModelThumbnailWidget::paintGL() {