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QMultiSampleAntiAliasing Class

class Qt3DRender::QMultiSampleAntiAliasing

다중 샘플 앤티앨리어싱을 활성화합니다. 더 보기...

헤더: #include <QMultiSampleAntiAliasing>
CMake: find_package(Qt6 REQUIRED COMPONENTS 3drender)
target_link_libraries(mytarget PRIVATE Qt6::3drender)
qmake: QT += 3drender
QML에서: MultiSampleAntiAliasing
상속합니다: Qt3DRender::QRenderState
상태: Deprecated

공용 함수

QMultiSampleAntiAliasing(Qt3DCore::QNode *parent = nullptr)

상세 설명

Qt3DRender::QMultiSampleAntiAliasing 클래스는 멀티샘플 안티앨리어싱을 활성화합니다.

QRenderPass::addRenderState()을 호출하여 QRenderPass 에 추가할 수 있습니다:

QRenderPass *renderPass = new QRenderPass();

QMultiSampleAntiAliasing *msaa = new QMultiSampleAntiAliasing();
renderPass->addRenderState(msaa);

또는 QRenderStateSet::addRenderState()을 호출하여 QRenderStateSet 에 추가할 수 있습니다:

QRenderStateSet *renderStateSet = new QRenderStateSet();

QMultiSampleAntiAliasing *msaa = new QMultiSampleAntiAliasing();
renderStateSet->addRenderState(msaa);

멀티샘플링이 적용되려면 렌더 타깃이 멀티샘플링이 활성화된 상태로 할당되어 있어야 합니다:

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);

또한 셰이더 코드에서 멀티샘플링 샘플러 유형과 texture() 대신 texelFetch()를 사용해야 합니다.

예를 들어 다음과 같은 코드가 있는 경우

#version 150

uniform sampler2D colorTexture;
in vec2 texCoord;
out vec4 fragColor;

void main()
{
    fragColor = texture(colorTexture, texCoord);
}

와 같은 코드가 있다면 다음과 같이 다시 작성할 수 있습니다.

#version 150

uniform sampler2DMS colorTexture;
in vec2 texCoord;
out vec4 fragColor;

void main()
{
    ivec2 tc = ivec2(floor(textureSize(colorTexture) * texCoord));
    vec4 c = texelFetch(colorTexture, tc, 0) +
                texelFetch(colorTexture, tc, 1) +
                texelFetch(colorTexture, tc, 2) +
                texelFetch(colorTexture, tc, 3);
    fragColor = c / 4.0;
}

참고: 그래픽 API로 OpenGL을 사용하는 경우, 렌더링 상태에 QMultiSampleAntiAliasing이 추가된 경우 glEnable(GL_MULTISAMPLE)이 호출됩니다.

멤버 함수 문서

[explicit] QMultiSampleAntiAliasing::QMultiSampleAntiAliasing(Qt3DCore::QNode *parent = nullptr)

생성자는 지정된 parent 을 사용하여 새 QMultiSampleAntiAliasing::QMultiSampleAntiAliasing 인스턴스를 생성합니다.

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