| 1 | // Copyright (C) 2023 The Qt Company Ltd. |
|---|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only |
| 3 | |
| 4 | #include "scatterinstancing_p.h" |
| 5 | |
| 6 | QT_BEGIN_NAMESPACE |
| 7 | |
| 8 | ScatterInstancing::ScatterInstancing() {} |
| 9 | |
| 10 | QByteArray ScatterInstancing::getInstanceBuffer(int *instanceCount) |
| 11 | { |
| 12 | if (m_dirty) { |
| 13 | m_instanceData.resize(size: 0); |
| 14 | int instanceNumber = 0; |
| 15 | |
| 16 | for (int i = 0; i < m_dataArray.size(); ++i) { |
| 17 | auto item = m_dataArray.at(i); |
| 18 | float x = item.position.x(); |
| 19 | float y = item.position.y(); |
| 20 | float z = item.position.z(); |
| 21 | QVector4D customData{}; |
| 22 | if (m_rangeGradient) |
| 23 | customData.setX(m_customData.at(i)); |
| 24 | |
| 25 | if (item.hide) { |
| 26 | // Setting the scale to zero breaks instanced picking. |
| 27 | item.scale = {0.001f, 0.001f, 0.001f}; |
| 28 | } |
| 29 | auto entry = calculateTableEntryFromQuaternion(position: {x, y, z}, |
| 30 | scale: item.scale, |
| 31 | rotation: item.rotation, |
| 32 | color: QColor(Qt::white), |
| 33 | customData); |
| 34 | m_instanceData.append(s: reinterpret_cast<char *>(&entry), len: sizeof(entry)); |
| 35 | instanceNumber++; |
| 36 | } |
| 37 | m_instanceCount = instanceNumber; |
| 38 | m_dirty = false; |
| 39 | } |
| 40 | |
| 41 | if (instanceCount) |
| 42 | *instanceCount = m_instanceCount; |
| 43 | |
| 44 | return m_instanceData; |
| 45 | } |
| 46 | |
| 47 | bool ScatterInstancing::rangeGradient() const |
| 48 | { |
| 49 | return m_rangeGradient; |
| 50 | } |
| 51 | |
| 52 | void ScatterInstancing::setRangeGradient(bool newRangeGradient) |
| 53 | { |
| 54 | m_rangeGradient = newRangeGradient; |
| 55 | } |
| 56 | |
| 57 | void ScatterInstancing::setTransparency(bool transparency) |
| 58 | { |
| 59 | setDepthSortingEnabled(transparency); |
| 60 | } |
| 61 | |
| 62 | const QList<float> &ScatterInstancing::customData() const |
| 63 | { |
| 64 | return m_customData; |
| 65 | } |
| 66 | |
| 67 | void ScatterInstancing::setCustomData(const QList<float> &newCustomData) |
| 68 | { |
| 69 | m_customData = newCustomData; |
| 70 | markDataDirty(); |
| 71 | } |
| 72 | |
| 73 | void ScatterInstancing::markDataDirty() |
| 74 | { |
| 75 | m_dirty = true; |
| 76 | markDirty(); |
| 77 | } |
| 78 | |
| 79 | const QList<DataItemHolder> &ScatterInstancing::dataArray() const |
| 80 | { |
| 81 | return m_dataArray; |
| 82 | } |
| 83 | |
| 84 | void ScatterInstancing::setDataArray(const QList<DataItemHolder> &newDataArray) |
| 85 | { |
| 86 | m_dataArray = newDataArray; |
| 87 | markDataDirty(); |
| 88 | } |
| 89 | |
| 90 | void ScatterInstancing::hideDataItem(qsizetype index) |
| 91 | { |
| 92 | unhidePreviousDataItem(); |
| 93 | Q_ASSERT(index < m_dataArray.size()); |
| 94 | m_dataArray[index].hide = true; |
| 95 | m_previousHideIndex = index; |
| 96 | } |
| 97 | |
| 98 | void ScatterInstancing::unhidePreviousDataItem() |
| 99 | { |
| 100 | if (m_previousHideIndex >= 0) { |
| 101 | m_dataArray[m_previousHideIndex].hide = false; |
| 102 | markDataDirty(); |
| 103 | } |
| 104 | } |
| 105 | |
| 106 | void ScatterInstancing::resetVisibilty() |
| 107 | { |
| 108 | for (auto &dih : m_dataArray) |
| 109 | dih.hide = false; |
| 110 | markDataDirty(); |
| 111 | } |
| 112 | |
| 113 | QT_END_NAMESPACE |
| 114 |