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| #include "qmultisampleantialiasing.h" |
| #include "qrenderstate_p.h" |
| #include <private/qnode_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| namespace Qt3DRender { |
| |
| /*! |
| \class Qt3DRender::QMultiSampleAntiAliasing |
| \brief Enable multisample antialiasing. |
| \since 5.7 |
| \ingroup renderstates |
| \inmodule Qt3DRender |
| |
| A Qt3DRender::QMultiSampleAntiAliasing class enables multisample antialiasing. |
| |
| It can be added to a QRenderPass by calling QRenderPass::addRenderState(): |
| |
| \code |
| QRenderPass *renderPass = new QRenderPass(); |
| |
| QMultiSampleAntiAliasing *msaa = new QMultiSampleAntiAliasing(); |
| renderPass->addRenderState(msaa); |
| \endcode |
| |
| Or a QRenderStateSet by calling QRenderStateSet::addRenderState(): |
| |
| \code |
| QRenderStateSet *renderStateSet = new QRenderStateSet(); |
| |
| QMultiSampleAntiAliasing *msaa = new QMultiSampleAntiAliasing(); |
| renderStateSet->addRenderState(msaa); |
| \endcode |
| |
| For multisampling to take effect, the render target must have been allocated |
| with multisampling enabled: |
| |
| \code |
| QTexture2DMultisample *colorTex = new QTexture2DMultisample; |
| colorTex->setFormat(QAbstractTexture::RGBA8_UNorm); |
| colorTex->setWidth(1024); |
| colorTex->setHeight(1024); |
| |
| QRenderTargetOutput *color = new QRenderTargetOutput; |
| color->setAttachmentPoint(QRenderTargetOutput::Color0); |
| color->setTexture(colorTex); |
| |
| QTexture2DMultisample *depthStencilTex = new QTexture2DMultisample; |
| depthStencilTex->setFormat(QAbstractTexture::RGBA8_UNorm); |
| depthStencilTex->setWidth(1024); |
| depthStencilTex->setHeight(1024); |
| |
| QRenderTargetOutput *depthStencil = new QRenderTargetOutput; |
| depthStencil->setAttachmentPoint(QRenderTargetOutput::DepthStencil); |
| depthStencil->setTexture(depthStencilTex); |
| |
| Qt3DRender::QRenderTarget *renderTarget = new Qt3DRender::QRenderTarget; |
| renderTarget->addOutput(color); |
| renderTarget->addOutput(depthStencil); |
| \endcode |
| |
| \include code/src_render_renderstates_qmultisampleantialiasing.qdocinc |
| |
| \note When using OpenGL as the graphics API, glEnable(GL_MULTISAMPLE) will be called if |
| QMultiSampleAntiAliasing has been added to the render states. |
| */ |
| |
| /*! |
| \qmltype MultiSampleAntiAliasing |
| \brief Enable multisample antialiasing. |
| \since 5.7 |
| \ingroup renderstates |
| \inqmlmodule Qt3D.Render |
| \inherits RenderState |
| \instantiates Qt3DRender::QMultiSampleAntiAliasing |
| |
| A MultiSampleAntiAliasing type enables multisample antialiasing. |
| |
| It can be added to a RenderPass: |
| |
| \qml |
| RenderPass { |
| shaderProgram: ShaderProgram { |
| // ... |
| } |
| renderStates: [ |
| MultiSampleAntiAliasing {} |
| ] |
| } |
| \endqml |
| |
| Or a RenderStateSet: |
| |
| \qml |
| RenderStateSet { |
| renderStates: [ |
| MultiSampleAntiAliasing {} |
| ] |
| } |
| \endqml |
| |
| For multisampling to take effect, the render target must have been allocated |
| with multisampling enabled: |
| |
| \qml |
| RenderTarget { |
| attachments: [ |
| RenderTargetOutput { |
| attachmentPoint: RenderTargetOutput.Color0 |
| texture: Texture2DMultisample { |
| width: 1024 |
| height: 1024 |
| format: Texture.RGBA8_UNorm |
| } |
| }, |
| RenderTargetOutput { |
| attachmentPoint: RenderTargetOutput.DepthStencil |
| texture: Texture2DMultisample{ |
| width: 1024 |
| height: 1024 |
| format: Texture.D24S8 |
| } |
| } |
| ] |
| } |
| \endqml |
| |
| Further, the shader code must use multisampling sampler types and texelFetch() instead |
| of texture(). |
| |
| \include code/src_render_renderstates_qmultisampleantialiasing.qdocinc |
| |
| \note When using OpenGL as the graphics API, glEnable(GL_MULTISAMPLE) will be called if |
| MultiSampleAntiAliasing has been added to the render states. |
| */ |
| |
| class QMultiSampleAntiAliasingPrivate : public QRenderStatePrivate |
| { |
| public: |
| QMultiSampleAntiAliasingPrivate() |
| : QRenderStatePrivate(Render::MSAAEnabledStateMask) |
| { |
| } |
| |
| Q_DECLARE_PUBLIC(QMultiSampleAntiAliasing) |
| }; |
| |
| /*! |
| The constructor creates a new QMultiSampleAntiAliasing::QMultiSampleAntiAliasing |
| instance with the specified \a parent. |
| */ |
| QMultiSampleAntiAliasing::QMultiSampleAntiAliasing(QNode *parent) |
| : QRenderState(*new QMultiSampleAntiAliasingPrivate, parent) |
| { |
| } |
| |
| /*! \internal */ |
| QMultiSampleAntiAliasing::~QMultiSampleAntiAliasing() |
| { |
| } |
| |
| } // namespace Qt3DRender |
| |
| QT_END_NAMESPACE |
| |