qt-everywhere-src-5.15.1/qtbase/tests/manual/rhi/msaarenderbuffer/msaarenderbuffer.cpp - orbit - Git at Google

 /****************************************************************************
 **
 ** Copyright (C) 2018 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the examples of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:BSD$
 ** Commercial License Usage
 ** Licensees holding valid commercial Qt licenses may use this file in
 ** accordance with the commercial license agreement provided with the
 ** Software or, alternatively, in accordance with the terms contained in
 ** a written agreement between you and The Qt Company. For licensing terms
 ** and conditions see https://www.qt.io/terms-conditions. For further
 ** information use the contact form at https://www.qt.io/contact-us.
 **
 ** BSD License Usage
 ** Alternatively, you may use this file under the terms of the BSD license
 ** as follows:
 **
 ** "Redistribution and use in source and binary forms, with or without
 ** modification, are permitted provided that the following conditions are
 ** met:
 **   * Redistributions of source code must retain the above copyright
 **     notice, this list of conditions and the following disclaimer.
 **   * Redistributions in binary form must reproduce the above copyright
 **     notice, this list of conditions and the following disclaimer in
 **     the documentation and/or other materials provided with the
 **     distribution.
 **   * Neither the name of The Qt Company Ltd nor the names of its
 **     contributors may be used to endorse or promote products derived
 **     from this software without specific prior written permission.
 **
 **
 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
 **
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/

 #include "../shared/examplefw.h"

 // Uses a multisample renderbuffer (whatever that may be on a given backend) to
 // render to and then resolves the samples into a non-multisample texture.

 static float vertexData[] =
 { // Y up, CCW
   -0.5f,   0.5f,   0.0f, 0.0f,
   -0.5f,  -0.5f,   0.0f, 1.0f,
   0.5f,   -0.5f,   1.0f, 1.0f,
   0.5f,   0.5f,    1.0f, 0.0f
 };

 static quint16 indexData[] =
 {
     0, 1, 2, 0, 2, 3
 };

 static float triangleData[] =
 { // Y up, CCW
      0.0f,   0.5f,   1.0f, 0.0f, 0.0f,
     -0.5f,  -0.5f,   0.0f, 1.0f, 0.0f,
      0.5f,  -0.5f,   0.0f, 0.0f, 1.0f,
 };

 struct {
     QVector<QRhiResource *> releasePool;
     QRhiBuffer *vbuf = nullptr;
     QRhiBuffer *ibuf = nullptr;
     QRhiBuffer *ubuf = nullptr;
     QRhiRenderBuffer *rb = nullptr;
     QRhiTextureRenderTarget *rt = nullptr;
     QRhiRenderPassDescriptor *rtRp = nullptr;
     QRhiTexture *tex = nullptr;
     QRhiSampler *sampler = nullptr;
     QRhiBuffer *triUbuf = nullptr;
     QRhiShaderResourceBindings *triSrb = nullptr;
     QRhiGraphicsPipeline *triPs = nullptr;
     QRhiShaderResourceBindings *srb = nullptr;
     QRhiGraphicsPipeline *ps = nullptr;
     QRhiResourceUpdateBatch *initialUpdates = nullptr;
     QMatrix4x4 triBaseMvp;
     float triRot = 0;
     QMatrix4x4 winProj;
 } d;

 void Window::customInit()
 {
     d.vbuf = m_r->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer, sizeof(vertexData) + sizeof(triangleData));
     d.vbuf->build();
     d.releasePool << d.vbuf;

     d.ibuf = m_r->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::IndexBuffer, sizeof(indexData));
     d.ibuf->build();
     d.releasePool << d.ibuf;

     d.ubuf = m_r->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::UniformBuffer, 68);
     d.ubuf->build();
     d.releasePool << d.ubuf;

     d.rb = m_r->newRenderBuffer(QRhiRenderBuffer::Color, QSize(512, 512), 4); // 4x MSAA
     d.rb->build();
     d.releasePool << d.rb;

     // the non-msaa texture that will be the destination in the resolve
     d.tex = m_r->newTexture(QRhiTexture::RGBA8, d.rb->pixelSize(), 1, QRhiTexture::RenderTarget);
     d.releasePool << d.tex;
     d.tex->build();

     // rb is multisample, instead of writing out the msaa data into it,
     // resolve into d.tex at the end of each render pass
     QRhiTextureRenderTargetDescription rtDesc;
     QRhiColorAttachment rtAtt(d.rb);
     rtAtt.setResolveTexture(d.tex);
     rtDesc.setColorAttachments({ rtAtt });

     d.rt = m_r->newTextureRenderTarget(rtDesc);
     d.releasePool << d.rt;
     d.rtRp = d.rt->newCompatibleRenderPassDescriptor();
     d.releasePool << d.rtRp;
     d.rt->setRenderPassDescriptor(d.rtRp);
     d.rt->build();

     d.triUbuf = m_r->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::UniformBuffer, 68);
     d.releasePool << d.triUbuf;
     d.triUbuf->build();

     d.triSrb = m_r->newShaderResourceBindings();
     d.releasePool << d.triSrb;
     d.triSrb->setBindings({
         QRhiShaderResourceBinding::uniformBuffer(0, QRhiShaderResourceBinding::VertexStage | QRhiShaderResourceBinding::FragmentStage, d.triUbuf)
     });
     d.triSrb->build();

     d.triPs = m_r->newGraphicsPipeline();
     d.releasePool << d.triPs;
     d.triPs->setSampleCount(4); // must match the render target
     d.triPs->setShaderStages({
         { QRhiShaderStage::Vertex, getShader(QLatin1String(":/color.vert.qsb")) },
         { QRhiShaderStage::Fragment, getShader(QLatin1String(":/color.frag.qsb")) }
     });
     QRhiVertexInputLayout inputLayout;
     inputLayout.setBindings({
         { 5 * sizeof(float) }
     });
     inputLayout.setAttributes({
         { 0, 0, QRhiVertexInputAttribute::Float2, 0 },
         { 0, 1, QRhiVertexInputAttribute::Float3, 2 * sizeof(float) }
     });
     d.triPs->setVertexInputLayout(inputLayout);
     d.triPs->setShaderResourceBindings(d.triSrb);
     d.triPs->setRenderPassDescriptor(d.rtRp);
     d.triPs->build();

     d.sampler = m_r->newSampler(QRhiSampler::Linear, QRhiSampler::Linear, QRhiSampler::None,
                                 QRhiSampler::ClampToEdge, QRhiSampler::ClampToEdge);
     d.releasePool << d.sampler;
     d.sampler->build();

     d.srb = m_r->newShaderResourceBindings();
     d.releasePool << d.srb;
     d.srb->setBindings({
         QRhiShaderResourceBinding::uniformBuffer(0, QRhiShaderResourceBinding::VertexStage | QRhiShaderResourceBinding::FragmentStage, d.ubuf),
         QRhiShaderResourceBinding::sampledTexture(1, QRhiShaderResourceBinding::FragmentStage, d.tex, d.sampler)
     });
     d.srb->build();

     d.ps = m_r->newGraphicsPipeline();
     d.releasePool << d.ps;
     d.ps->setShaderStages({
         { QRhiShaderStage::Vertex, getShader(QLatin1String(":/texture.vert.qsb")) },
         { QRhiShaderStage::Fragment, getShader(QLatin1String(":/texture.frag.qsb")) }
     });
     inputLayout.setBindings({
         { 4 * sizeof(float) }
     });
     inputLayout.setAttributes({
         { 0, 0, QRhiVertexInputAttribute::Float2, 0 },
         { 0, 1, QRhiVertexInputAttribute::Float2, 2 * sizeof(float) }
     });
     d.ps->setVertexInputLayout(inputLayout);
     d.ps->setShaderResourceBindings(d.srb);
     d.ps->setRenderPassDescriptor(m_rp);
     d.ps->build();

     d.initialUpdates = m_r->nextResourceUpdateBatch();
     d.initialUpdates->uploadStaticBuffer(d.vbuf, 0, sizeof(vertexData), vertexData);
     d.initialUpdates->uploadStaticBuffer(d.vbuf, sizeof(vertexData), sizeof(triangleData), triangleData);
     d.initialUpdates->uploadStaticBuffer(d.ibuf, indexData);

     d.triBaseMvp = m_r->clipSpaceCorrMatrix();
     d.triBaseMvp.perspective(45.0f, d.rb->pixelSize().width() / float(d.rb->pixelSize().height()), 0.01f, 1000.0f);
     d.triBaseMvp.translate(0, 0, -2);
     float opacity = 1.0f;
     d.initialUpdates->updateDynamicBuffer(d.triUbuf, 64, 4, &opacity);

     qint32 flip = m_r->isYUpInFramebuffer() ? 1 : 0;
     d.initialUpdates->updateDynamicBuffer(d.ubuf, 64, 4, &flip);
 }

 void Window::customRelease()
 {
     qDeleteAll(d.releasePool);
     d.releasePool.clear();
 }

 void Window::customRender()
 {
     QRhiCommandBuffer *cb = m_sc->currentFrameCommandBuffer();
     QRhiResourceUpdateBatch *u = m_r->nextResourceUpdateBatch();
     if (d.initialUpdates) {
         u->merge(d.initialUpdates);
         d.initialUpdates->release();
         d.initialUpdates = nullptr;
     }

     QMatrix4x4 triMvp = d.triBaseMvp;
     triMvp.rotate(d.triRot, 0, 1, 0);
     d.triRot += 1;
     u->updateDynamicBuffer(d.triUbuf, 0, 64, triMvp.constData());

     if (d.winProj != m_proj) {
         d.winProj = m_proj;
         QMatrix4x4 mvp = m_proj;
         mvp.scale(2.5f);
         u->updateDynamicBuffer(d.ubuf, 0, 64, mvp.constData());
     }

     // offscreen (triangle, msaa)
     cb->beginPass(d.rt, QColor::fromRgbF(0.5f, 0.2f, 0.0f, 1.0f), { 1.0f, 0 }, u);
     cb->setGraphicsPipeline(d.triPs);
     cb->setViewport({ 0, 0, float(d.rb->pixelSize().width()), float(d.rb->pixelSize().height()) });
     cb->setShaderResources();
     QRhiCommandBuffer::VertexInput vbufBinding(d.vbuf, sizeof(vertexData));
     cb->setVertexInput(0, 1, &vbufBinding);
     cb->draw(3);
     cb->endPass();

     // onscreen (quad)
     const QSize outputSizeInPixels = m_sc->currentPixelSize();
     cb->beginPass(m_sc->currentFrameRenderTarget(), m_clearColor, { 1.0f, 0 });
     cb->setGraphicsPipeline(d.ps);
     cb->setViewport({ 0, 0, float(outputSizeInPixels.width()), float(outputSizeInPixels.height()) });
     cb->setShaderResources();
     vbufBinding.second = 0;
     cb->setVertexInput(0, 1, &vbufBinding, d.ibuf, 0, QRhiCommandBuffer::IndexUInt16);
     cb->drawIndexed(6);
     cb->endPass();
 }
	/****************************************************************************
	**
	** Copyright (C) 2018 The Qt Company Ltd.
	** Contact: https://www.qt.io/licensing/
	**
	** This file is part of the examples of the Qt Toolkit.
	**
	** $QT_BEGIN_LICENSE:BSD$
	** Commercial License Usage
	** Licensees holding valid commercial Qt licenses may use this file in
	** accordance with the commercial license agreement provided with the
	** Software or, alternatively, in accordance with the terms contained in
	** a written agreement between you and The Qt Company. For licensing terms
	** and conditions see https://www.qt.io/terms-conditions. For further
	** information use the contact form at https://www.qt.io/contact-us.
	**
	** BSD License Usage
	** Alternatively, you may use this file under the terms of the BSD license
	** as follows:
	**
	** "Redistribution and use in source and binary forms, with or without
	** modification, are permitted provided that the following conditions are
	** met:
	** * Redistributions of source code must retain the above copyright
	** notice, this list of conditions and the following disclaimer.
	** * Redistributions in binary form must reproduce the above copyright
	** notice, this list of conditions and the following disclaimer in
	** the documentation and/or other materials provided with the
	** distribution.
	** * Neither the name of The Qt Company Ltd nor the names of its
	** contributors may be used to endorse or promote products derived
	** from this software without specific prior written permission.
	**
	**
	** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
	** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
	**
	** $QT_END_LICENSE$
	**
	****************************************************************************/

	#include "../shared/examplefw.h"

	// Uses a multisample renderbuffer (whatever that may be on a given backend) to
	// render to and then resolves the samples into a non-multisample texture.

	static float vertexData[] =
	{ // Y up, CCW
	-0.5f, 0.5f, 0.0f, 0.0f,
	-0.5f, -0.5f, 0.0f, 1.0f,
	0.5f, -0.5f, 1.0f, 1.0f,
	0.5f, 0.5f, 1.0f, 0.0f
	};

	static quint16 indexData[] =
	{
	0, 1, 2, 0, 2, 3
	};

	static float triangleData[] =
	{ // Y up, CCW
	0.0f, 0.5f, 1.0f, 0.0f, 0.0f,
	-0.5f, -0.5f, 0.0f, 1.0f, 0.0f,
	0.5f, -0.5f, 0.0f, 0.0f, 1.0f,
	};

	struct {
	QVector<QRhiResource *> releasePool;
	QRhiBuffer *vbuf = nullptr;
	QRhiBuffer *ibuf = nullptr;
	QRhiBuffer *ubuf = nullptr;
	QRhiRenderBuffer *rb = nullptr;
	QRhiTextureRenderTarget *rt = nullptr;
	QRhiRenderPassDescriptor *rtRp = nullptr;
	QRhiTexture *tex = nullptr;
	QRhiSampler *sampler = nullptr;
	QRhiBuffer *triUbuf = nullptr;
	QRhiShaderResourceBindings *triSrb = nullptr;
	QRhiGraphicsPipeline *triPs = nullptr;
	QRhiShaderResourceBindings *srb = nullptr;
	QRhiGraphicsPipeline *ps = nullptr;
	QRhiResourceUpdateBatch *initialUpdates = nullptr;
	QMatrix4x4 triBaseMvp;
	float triRot = 0;
	QMatrix4x4 winProj;
	} d;

	void Window::customInit()
	{
	d.vbuf = m_r->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer, sizeof(vertexData) + sizeof(triangleData));
	d.vbuf->build();
	d.releasePool << d.vbuf;

	d.ibuf = m_r->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::IndexBuffer, sizeof(indexData));
	d.ibuf->build();
	d.releasePool << d.ibuf;

	d.ubuf = m_r->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::UniformBuffer, 68);
	d.ubuf->build();
	d.releasePool << d.ubuf;

	d.rb = m_r->newRenderBuffer(QRhiRenderBuffer::Color, QSize(512, 512), 4); // 4x MSAA
	d.rb->build();
	d.releasePool << d.rb;

	// the non-msaa texture that will be the destination in the resolve
	d.tex = m_r->newTexture(QRhiTexture::RGBA8, d.rb->pixelSize(), 1, QRhiTexture::RenderTarget);
	d.releasePool << d.tex;
	d.tex->build();

	// rb is multisample, instead of writing out the msaa data into it,
	// resolve into d.tex at the end of each render pass
	QRhiTextureRenderTargetDescription rtDesc;
	QRhiColorAttachment rtAtt(d.rb);
	rtAtt.setResolveTexture(d.tex);
	rtDesc.setColorAttachments({ rtAtt });

	d.rt = m_r->newTextureRenderTarget(rtDesc);
	d.releasePool << d.rt;
	d.rtRp = d.rt->newCompatibleRenderPassDescriptor();
	d.releasePool << d.rtRp;
	d.rt->setRenderPassDescriptor(d.rtRp);
	d.rt->build();

	d.triUbuf = m_r->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::UniformBuffer, 68);
	d.releasePool << d.triUbuf;
	d.triUbuf->build();

	d.triSrb = m_r->newShaderResourceBindings();
	d.releasePool << d.triSrb;
	d.triSrb->setBindings({
	QRhiShaderResourceBinding::uniformBuffer(0, QRhiShaderResourceBinding::VertexStage \| QRhiShaderResourceBinding::FragmentStage, d.triUbuf)
	});
	d.triSrb->build();

	d.triPs = m_r->newGraphicsPipeline();
	d.releasePool << d.triPs;
	d.triPs->setSampleCount(4); // must match the render target
	d.triPs->setShaderStages({
	{ QRhiShaderStage::Vertex, getShader(QLatin1String(":/color.vert.qsb")) },
	{ QRhiShaderStage::Fragment, getShader(QLatin1String(":/color.frag.qsb")) }
	});
	QRhiVertexInputLayout inputLayout;
	inputLayout.setBindings({
	{ 5 * sizeof(float) }
	});
	inputLayout.setAttributes({
	{ 0, 0, QRhiVertexInputAttribute::Float2, 0 },
	{ 0, 1, QRhiVertexInputAttribute::Float3, 2 * sizeof(float) }
	});
	d.triPs->setVertexInputLayout(inputLayout);
	d.triPs->setShaderResourceBindings(d.triSrb);
	d.triPs->setRenderPassDescriptor(d.rtRp);
	d.triPs->build();

	d.sampler = m_r->newSampler(QRhiSampler::Linear, QRhiSampler::Linear, QRhiSampler::None,
	QRhiSampler::ClampToEdge, QRhiSampler::ClampToEdge);
	d.releasePool << d.sampler;
	d.sampler->build();

	d.srb = m_r->newShaderResourceBindings();
	d.releasePool << d.srb;
	d.srb->setBindings({
	QRhiShaderResourceBinding::uniformBuffer(0, QRhiShaderResourceBinding::VertexStage \| QRhiShaderResourceBinding::FragmentStage, d.ubuf),
	QRhiShaderResourceBinding::sampledTexture(1, QRhiShaderResourceBinding::FragmentStage, d.tex, d.sampler)
	});
	d.srb->build();

	d.ps = m_r->newGraphicsPipeline();
	d.releasePool << d.ps;
	d.ps->setShaderStages({
	{ QRhiShaderStage::Vertex, getShader(QLatin1String(":/texture.vert.qsb")) },
	{ QRhiShaderStage::Fragment, getShader(QLatin1String(":/texture.frag.qsb")) }
	});
	inputLayout.setBindings({
	{ 4 * sizeof(float) }
	});
	inputLayout.setAttributes({
	{ 0, 0, QRhiVertexInputAttribute::Float2, 0 },
	{ 0, 1, QRhiVertexInputAttribute::Float2, 2 * sizeof(float) }
	});
	d.ps->setVertexInputLayout(inputLayout);
	d.ps->setShaderResourceBindings(d.srb);
	d.ps->setRenderPassDescriptor(m_rp);
	d.ps->build();

	d.initialUpdates = m_r->nextResourceUpdateBatch();
	d.initialUpdates->uploadStaticBuffer(d.vbuf, 0, sizeof(vertexData), vertexData);
	d.initialUpdates->uploadStaticBuffer(d.vbuf, sizeof(vertexData), sizeof(triangleData), triangleData);
	d.initialUpdates->uploadStaticBuffer(d.ibuf, indexData);

	d.triBaseMvp = m_r->clipSpaceCorrMatrix();
	d.triBaseMvp.perspective(45.0f, d.rb->pixelSize().width() / float(d.rb->pixelSize().height()), 0.01f, 1000.0f);
	d.triBaseMvp.translate(0, 0, -2);
	float opacity = 1.0f;
	d.initialUpdates->updateDynamicBuffer(d.triUbuf, 64, 4, &opacity);

	qint32 flip = m_r->isYUpInFramebuffer() ? 1 : 0;
	d.initialUpdates->updateDynamicBuffer(d.ubuf, 64, 4, &flip);
	}

	void Window::customRelease()
	{
	qDeleteAll(d.releasePool);
	d.releasePool.clear();
	}

	void Window::customRender()
	{
	QRhiCommandBuffer *cb = m_sc->currentFrameCommandBuffer();
	QRhiResourceUpdateBatch *u = m_r->nextResourceUpdateBatch();
	if (d.initialUpdates) {
	u->merge(d.initialUpdates);
	d.initialUpdates->release();
	d.initialUpdates = nullptr;
	}

	QMatrix4x4 triMvp = d.triBaseMvp;
	triMvp.rotate(d.triRot, 0, 1, 0);
	d.triRot += 1;
	u->updateDynamicBuffer(d.triUbuf, 0, 64, triMvp.constData());

	if (d.winProj != m_proj) {
	d.winProj = m_proj;
	QMatrix4x4 mvp = m_proj;
	mvp.scale(2.5f);
	u->updateDynamicBuffer(d.ubuf, 0, 64, mvp.constData());
	}

	// offscreen (triangle, msaa)
	cb->beginPass(d.rt, QColor::fromRgbF(0.5f, 0.2f, 0.0f, 1.0f), { 1.0f, 0 }, u);
	cb->setGraphicsPipeline(d.triPs);
	cb->setViewport({ 0, 0, float(d.rb->pixelSize().width()), float(d.rb->pixelSize().height()) });
	cb->setShaderResources();
	QRhiCommandBuffer::VertexInput vbufBinding(d.vbuf, sizeof(vertexData));
	cb->setVertexInput(0, 1, &vbufBinding);
	cb->draw(3);
	cb->endPass();

	// onscreen (quad)
	const QSize outputSizeInPixels = m_sc->currentPixelSize();
	cb->beginPass(m_sc->currentFrameRenderTarget(), m_clearColor, { 1.0f, 0 });
	cb->setGraphicsPipeline(d.ps);
	cb->setViewport({ 0, 0, float(outputSizeInPixels.width()), float(outputSizeInPixels.height()) });
	cb->setShaderResources();
	vbufBinding.second = 0;
	cb->setVertexInput(0, 1, &vbufBinding, d.ibuf, 0, QRhiCommandBuffer::IndexUInt16);
	cb->drawIndexed(6);
	cb->endPass();
	}