1// Copyright (C) 2008-2012 NVIDIA Corporation.
2// Copyright (C) 2019 The Qt Company Ltd.
3// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
4
5#include "qssgrenderableobjects_p.h"
6#include "qssglayerrenderdata_p.h"
7
8#include <QtQuick3DRuntimeRender/private/qssgrenderer_p.h>
9#include <QtQuick3DRuntimeRender/private/qssgrhicustommaterialsystem_p.h>
10#include <QtQuick3DRuntimeRender/private/qssgrenderlight_p.h>
11#include <QtQuick3DRuntimeRender/private/qssgrenderdefaultmaterialshadergenerator_p.h>
12
13QT_BEGIN_NAMESPACE
14struct QSSGRenderableImage;
15class QSSGSubsetRenderable;
16
17QSSGModelContext::QSSGModelContext(const QSSGRenderModel &inModel,
18 const QMatrix4x4 &inGlobalTransform,
19 const QMatrix3x3 &inNormalMatrix,
20 const QSSGRenderMvpArray &inModelViewProjections)
21 : model(inModel)
22 , globalTransform(inGlobalTransform)
23 , normalMatrix(inNormalMatrix)
24 , modelViewProjections(inModelViewProjections)
25{
26
27}
28
29QSSGSubsetRenderable::QSSGSubsetRenderable(Type type,
30 QSSGRenderableObjectFlags inFlags,
31 const QVector3D &inWorldCenterPt,
32 QSSGRenderer *rendr,
33 const QSSGRenderSubset &inSubset,
34 const QSSGModelContext &inModelContext,
35 float inOpacity,
36 quint32 inSubsetLevelOfDetail,
37 const QSSGRenderGraphObject &mat,
38 QSSGRenderableImage *inFirstImage,
39 QSSGShaderDefaultMaterialKey inShaderKey,
40 const QSSGShaderLightListView &inLights,
41 bool anyLightHasShadows)
42 : QSSGRenderableObject(type,
43 inFlags,
44 inWorldCenterPt,
45 inSubset.bounds,
46 inModelContext.model.m_depthBiasSq,
47 inModelContext.model.instancingLodMin,
48 inModelContext.model.instancingLodMax)
49 , subsetLevelOfDetail(inSubsetLevelOfDetail)
50 , renderer(rendr)
51 , modelContext(inModelContext)
52 , subset(inSubset)
53 , opacity(inOpacity)
54 , material(mat)
55 , firstImage(inFirstImage)
56 , shaderDescription(inShaderKey)
57 , lights(inLights)
58{
59 if (mat.type == QSSGRenderGraphObject::Type::CustomMaterial)
60 depthWriteMode = static_cast<const QSSGRenderCustomMaterial *>(&mat)->m_depthDrawMode;
61 else
62 depthWriteMode = static_cast<const QSSGRenderDefaultMaterial *>(&mat)->depthDrawMode;
63
64 const bool modelBlendParticle = (inModelContext.model.particleBuffer != nullptr
65 && inModelContext.model.particleBuffer->particleCount());
66 if (modelBlendParticle)
67 globalBounds = inModelContext.model.particleBuffer->bounds();
68 else
69 globalBounds.transform(inMatrix: inModelContext.globalTransform);
70
71 // Do we need instanced bounds
72 const QSSGRenderInstanceTable *instanceTable = inModelContext.model.instanceTable;
73 if (!instanceTable || !anyLightHasShadows || !(inFlags.castsShadows() || inFlags.receivesShadows()))
74 return;
75
76 // Check for specified instancing shadow bounds
77 QSSGBounds3 bounds = QSSGBounds3(instanceTable->getShadowBoundsMinimum(), instanceTable->getShadowBoundsMaximum());
78 if (!bounds.isEmpty() && bounds.isFinite()) {
79 globalBoundsInstancing = bounds;
80 return;
81 }
82
83 // Calculate instancing shadow bounds
84 const auto points = globalBounds.toQSSGBoxPointsNoEmptyCheck();
85 for (int i = 0; i < instanceTable->count(); ++i) {
86 const QMatrix4x4 transform = instanceTable->getTransform(index: i);
87 for (const QVector3D &point : points) {
88 globalBoundsInstancing.include(v: transform.map(point));
89 }
90 }
91}
92
93QSSGParticlesRenderable::QSSGParticlesRenderable(QSSGRenderableObjectFlags inFlags,
94 const QVector3D &inWorldCenterPt,
95 QSSGRenderer *rendr,
96 const QMatrix4x4 &inGlobalTransform,
97 const QSSGRenderParticles &inParticles,
98 QSSGRenderableImage *inFirstImage,
99 QSSGRenderableImage *inColorTable,
100 const QSSGShaderLightListView &inLights,
101 float inOpacity)
102 : QSSGRenderableObject(Type::Particles,
103 inFlags,
104 inWorldCenterPt,
105 inParticles.m_particleBuffer.bounds(),
106 inParticles.m_depthBiasSq)
107 , renderer(rendr)
108 , particles(inParticles)
109 , firstImage(inFirstImage)
110 , colorTable(inColorTable)
111 , lights(inLights)
112 , globalTransform(inGlobalTransform)
113 , opacity(inOpacity)
114{
115 // Bounds are in global space for _model blend_ particles
116 globalBounds = inParticles.m_particleBuffer.bounds();
117 if (inParticles.type != QSSGRenderParticles::Type::ModelBlendParticle)
118 globalBounds.transform(inMatrix: inGlobalTransform);
119}
120
121QT_END_NAMESPACE
122

source code of qtquick3d/src/runtimerender/rendererimpl/qssgrenderableobjects.cpp