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50
51#include "gbuffer.h"
52
53GBuffer::GBuffer(Qt3DCore::QNode *parent)
54 : Qt3DRender::QRenderTarget(parent)
55{
56 const Qt3DRender::QAbstractTexture::TextureFormat formats[AttachmentsCount] = {
57 Qt3DRender::QAbstractTexture::RGBA32F,
58 // We use RGBA32F for the following two instead of a more fitting format because
59 // OpenGL vendors might not support other formats
60 Qt3DRender::QAbstractTexture::RGBA32F,
61 Qt3DRender::QAbstractTexture::RGBA32F,
62 Qt3DRender::QAbstractTexture::D32F
63 };
64
65 const Qt3DRender::QRenderTargetOutput::AttachmentPoint attachmentPoints[AttachmentsCount] = {
66 Qt3DRender::QRenderTargetOutput::Color0,
67 Qt3DRender::QRenderTargetOutput::Color1,
68 Qt3DRender::QRenderTargetOutput::Color2,
69 Qt3DRender::QRenderTargetOutput::Depth
70 };
71
72 for (int i = 0; i < AttachmentsCount; i++) {
73 Qt3DRender::QRenderTargetOutput *output = new Qt3DRender::QRenderTargetOutput(this);
74
75 m_textures[i] = new Qt3DRender::QTexture2D();
76 m_textures[i]->setFormat(formats[i]);
77 m_textures[i]->setWidth(1024);
78 m_textures[i]->setHeight(1024);
79 m_textures[i]->setGenerateMipMaps(false);
80 m_textures[i]->setWrapMode(Qt3DRender::QTextureWrapMode(Qt3DRender::QTextureWrapMode::ClampToEdge));
81 m_textures[i]->setMinificationFilter(Qt3DRender::QAbstractTexture::Linear);
82 m_textures[i]->setMagnificationFilter(Qt3DRender::QAbstractTexture::Linear);
83
84 output->setTexture(m_textures[i]);
85 output->setAttachmentPoint(attachmentPoints[i]);
86 addOutput(output);
87 }
88}
89
90Qt3DRender::QAbstractTexture *GBuffer::colorTexture() const
91{
92 return m_textures[Color];
93}
94
95Qt3DRender::QAbstractTexture *GBuffer::positionTexture() const
96{
97 return m_textures[Position];
98}
99
100Qt3DRender::QAbstractTexture *GBuffer::normalTexture() const
101{
102 return m_textures[Normal];
103}
104
105Qt3DRender::QAbstractTexture *GBuffer::depthTexture() const
106{
107 return m_textures[Depth];
108}
109

source code of qt3d/tests/manual/deferred-renderer-cpp/gbuffer.cpp