| 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 | ScatterInstancing::ScatterInstancing() |
| 7 | { |
| 8 | |
| 9 | } |
| 10 | |
| 11 | QByteArray ScatterInstancing::getInstanceBuffer(int *instanceCount) { |
| 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}, scale: item.scale, rotation: item.rotation, color: QColor(Qt::white), customData); |
| 30 | m_instanceData.append(s: reinterpret_cast<char *>(&entry), len: sizeof(entry)); |
| 31 | instanceNumber++; |
| 32 | } |
| 33 | m_instanceCount = instanceNumber; |
| 34 | m_dirty = false; |
| 35 | } |
| 36 | |
| 37 | if (instanceCount) |
| 38 | *instanceCount = m_instanceCount; |
| 39 | |
| 40 | return m_instanceData; |
| 41 | } |
| 42 | |
| 43 | bool ScatterInstancing::rangeGradient() const |
| 44 | { |
| 45 | return m_rangeGradient; |
| 46 | } |
| 47 | |
| 48 | void ScatterInstancing::setRangeGradient(bool newRangeGradient) |
| 49 | { |
| 50 | m_rangeGradient = newRangeGradient; |
| 51 | } |
| 52 | |
| 53 | QList<float> &ScatterInstancing::customData() |
| 54 | { |
| 55 | return m_customData; |
| 56 | } |
| 57 | |
| 58 | void ScatterInstancing::setCustomData(const QList<float> &newCustomData) |
| 59 | { |
| 60 | m_customData = newCustomData; |
| 61 | markDataDirty(); |
| 62 | } |
| 63 | |
| 64 | void ScatterInstancing::markDataDirty() |
| 65 | { |
| 66 | m_dirty = true; |
| 67 | markDirty(); |
| 68 | } |
| 69 | |
| 70 | const QList<DataItemHolder> &ScatterInstancing::dataArray() const |
| 71 | { |
| 72 | return m_dataArray; |
| 73 | } |
| 74 | |
| 75 | void ScatterInstancing::setDataArray(const QList<DataItemHolder> &newDataArray) |
| 76 | { |
| 77 | m_dataArray = newDataArray; |
| 78 | markDataDirty(); |
| 79 | } |
| 80 | |
| 81 | void ScatterInstancing::hideDataItem(int index) |
| 82 | { |
| 83 | m_dataArray[index].hide = true; |
| 84 | } |
| 85 | |
| 86 | void ScatterInstancing::resetVisibilty() |
| 87 | { |
| 88 | for (auto &dih : m_dataArray) |
| 89 | dih.hide = false; |
| 90 | markDataDirty(); |
| 91 | } |
| 92 |