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| |
| #include "../shared/renderexample.h" |
| #include "../shared/renderexampletools.h" |
| #include <QtGui/QVector4D> |
| #include <QtGui/QMatrix4x4> |
| #include <QtQuick3DRender/private/qssgrendercontext_p.h> |
| #include <QtQuick3DRender/private/qssgrendershaderprogram_p.h> |
| #include <QtQuick3DRender/private/qssgrenderindexbuffer_p.h> |
| #include <QtQuick3DRender/private/qssgrendervertexbuffer_p.h> |
| #include <QtGui/QGuiApplication> |
| |
| struct ShaderArguments |
| { |
| QMatrix4x4 mMatrix; |
| }; |
| |
| class SpinningCube : public QSSGRenderExample |
| { |
| public: |
| SpinningCube() |
| { |
| |
| } |
| ~SpinningCube() override |
| { |
| } |
| |
| void initialize() override |
| { |
| m_context = QSSGRenderContext::createGl(format()); |
| m_inputAssembler = QSSGRenderExampleTools::createBox(m_context, m_vertexBuffer, m_indexBuffer); |
| m_shader = QSSGRenderExampleTools::createSimpleShader(m_context); |
| if (m_shader) { |
| m_context->setActiveShader(m_shader); |
| } |
| m_context->setDepthTestEnabled(true); |
| m_context->setDepthWriteEnabled(true); |
| frus.frustum(-1, 1, -1, 1, 1, 10); |
| model.translate(0, 0, -4); |
| } |
| |
| virtual void drawFrame(qint64 delta) override |
| { |
| m_elapsedTime += delta; |
| QMatrix4x4 rot; |
| rot.rotate((float)m_elapsedTime * 0.1f, .707f, .707f, 0); |
| QMatrix4x4 mvp; |
| mvp *= frus; |
| mvp *= model; |
| mvp *= rot;; |
| |
| if (m_viewportDirty) { |
| m_context->setViewport(QRect(0, 0, this->width(), this->height())); |
| m_viewportDirty = false; |
| } |
| |
| m_context->clear( |
| QSSGRenderClearFlags(QSSGRenderClearValues::Color | QSSGRenderClearValues::Depth)); |
| m_context->setInputAssembler(m_inputAssembler); |
| |
| m_shader->setPropertyValue("mat_mvp", mvp); |
| m_context->draw(QSSGRenderDrawMode::Triangles, m_indexBuffer->numIndices(), 0); |
| } |
| private: |
| QSSGRef<QSSGRenderContext> m_context; |
| QSSGRef<QSSGRenderVertexBuffer> m_vertexBuffer; |
| QSSGRef<QSSGRenderIndexBuffer> m_indexBuffer; |
| QSSGRef<QSSGRenderInputAssembler> m_inputAssembler; |
| QSSGRef<QSSGRenderShaderProgram> m_shader; |
| QMatrix4x4 frus; |
| QMatrix4x4 model; |
| qint64 m_elapsedTime = 0; |
| bool m_viewportDirty = true; |
| |
| |
| // QWindow interface |
| protected: |
| void resizeEvent(QResizeEvent *) |
| { |
| m_viewportDirty = true; |
| } |
| }; |
| |
| int main(int argc, char *argv[]) |
| { |
| QGuiApplication app(argc, argv); |
| |
| QSurfaceFormat fmt; |
| fmt.setProfile(QSurfaceFormat::CoreProfile); |
| |
| // Advanced: Try 4.3 core (so we get compute shaders for instance) |
| fmt.setVersion(4, 3); |
| fmt.setSwapBehavior(QSurfaceFormat::DoubleBuffer); |
| |
| SpinningCube spinningCube; |
| spinningCube.setFormat(fmt); |
| spinningCube.show(); |
| |
| return app.exec(); |
| } |