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朱子楚\zhuzi
2024-05-13 18:28:28 +08:00
parent 2367c6978a
commit 876b230141
6 changed files with 22 additions and 17 deletions
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4
example/src/component/OpenGLItem.cpp
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@ -2,6 +2,7 @@
#include <QOpenGLFramebufferObjectFormat>
#include <QOpenGLShaderProgram>
#include <QQuickWindow>
class FBORenderer : public QQuickFramebufferObject::Renderer, protected QOpenGLFunctions {
public:
@ -47,6 +48,7 @@ QOpenGLFramebufferObject *FBORenderer::createFramebufferObject(const QSize &size
}
void FBORenderer::render() {
auto pixelRatio = item->window()->devicePixelRatio();
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glEnable(GL_DEPTH_TEST);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
@ -61,7 +63,7 @@ void FBORenderer::render() {
glBindBuffer(GL_ARRAY_BUFFER, 0);
program.setAttributeArray(0, GL_FLOAT, values, 2);
program.setUniformValue("t", (float) item->t());
glViewport(0, 0, qRound(item->width()), qRound(item->height()));
glViewport(0, 0, qRound(item->width()*pixelRatio), qRound(item->height()*pixelRatio));
glDisable(GL_DEPTH_TEST);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE);