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// Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include "gbuffer.h"
GBuffer::GBuffer(Qt3DCore::QNode *parent)
: Qt3DRender::QRenderTarget(parent)
{
const Qt3DRender::QAbstractTexture::TextureFormat formats[AttachmentsCount] = {
Qt3DRender::QAbstractTexture::RGBA32F,
// We use RGBA32F for the following two instead of a more fitting format because
// OpenGL vendors might not support other formats
Qt3DRender::QAbstractTexture::RGBA32F,
Qt3DRender::QAbstractTexture::RGBA32F,
Qt3DRender::QAbstractTexture::D32F
};
const Qt3DRender::QRenderTargetOutput::AttachmentPoint attachmentPoints[AttachmentsCount] = {
Qt3DRender::QRenderTargetOutput::Color0,
Qt3DRender::QRenderTargetOutput::Color1,
Qt3DRender::QRenderTargetOutput::Color2,
Qt3DRender::QRenderTargetOutput::Depth
};
for (int i = 0; i < AttachmentsCount; i++) {
Qt3DRender::QRenderTargetOutput *output = new Qt3DRender::QRenderTargetOutput(this);
m_textures[i] = new Qt3DRender::QTexture2D();
m_textures[i]->setFormat(formats[i]);
m_textures[i]->setWidth(1024);
m_textures[i]->setHeight(1024);
m_textures[i]->setGenerateMipMaps(false);
m_textures[i]->setWrapMode(Qt3DRender::QTextureWrapMode(Qt3DRender::QTextureWrapMode::ClampToEdge));
m_textures[i]->setMinificationFilter(Qt3DRender::QAbstractTexture::Linear);
m_textures[i]->setMagnificationFilter(Qt3DRender::QAbstractTexture::Linear);
output->setTexture(m_textures[i]);
output->setAttachmentPoint(attachmentPoints[i]);
addOutput(output);
}
}
Qt3DRender::QAbstractTexture *GBuffer::colorTexture() const
{
return m_textures[Color];
}
Qt3DRender::QAbstractTexture *GBuffer::positionTexture() const
{
return m_textures[Position];
}
Qt3DRender::QAbstractTexture *GBuffer::normalTexture() const
{
return m_textures[Normal];
}
Qt3DRender::QAbstractTexture *GBuffer::depthTexture() const
{
return m_textures[Depth];
}
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