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fix: Correct OpenGL viewport scaling on high-DPI displays

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Co-authored-by: aider (gemini/gemini-2.5-pro) <aider@aider.chat>
This commit is contained in:
Tanner Collin
2026-02-17 16:42:01 -07:00
parent d43b49a12f
commit 7010d221d0
1 changed files with 5 additions and 3 deletions
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8
src/ViewportWidget.cpp
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@@ -114,8 +114,10 @@ void ViewportWidget::initializeGL()
void ViewportWidget::paintGL() void ViewportWidget::paintGL()
{ {
const qreal retinaScale = devicePixelRatio();
// Main scene rendering // Main scene rendering
glViewport(0, 0, width(), height()); glViewport(0, 0, width() * retinaScale, height() * retinaScale);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
if (!m_shaderProgram || !m_shaderProgram->isLinked()) { if (!m_shaderProgram || !m_shaderProgram->isLinked()) {
@@ -189,9 +191,9 @@ void ViewportWidget::paintGL()
QMatrix4x4 viewCubeModel; QMatrix4x4 viewCubeModel;
viewCubeModel.rotate(m_camera->xRotation() / 16.0f, 1, 0, 0); viewCubeModel.rotate(m_camera->xRotation() / 16.0f, 1, 0, 0);
viewCubeModel.rotate(m_camera->yRotation() / 16.0f, 0, 1, 0); viewCubeModel.rotate(m_camera->yRotation() / 16.0f, 0, 1, 0);
m_viewCube->paintGL(m_shaderProgram, m_colorLoc, viewCubeModel, width(), height()); m_viewCube->paintGL(m_shaderProgram, m_colorLoc, viewCubeModel, width() * retinaScale, height() * retinaScale);
glViewport(0, 0, width(), height()); glViewport(0, 0, width() * retinaScale, height() * retinaScale);
glDisable(GL_DEPTH_TEST); glDisable(GL_DEPTH_TEST);
glDisable(GL_CULL_FACE); glDisable(GL_CULL_FACE);