diff options
author | Thomas Szepe <HG1_public@gmx.net> | 2015-05-14 10:40:03 +0300 |
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committer | Thomas Szepe <HG1_public@gmx.net> | 2015-05-14 10:40:03 +0300 |
commit | 687f6a9752fd2009f67dd0b66208777cd203bde1 (patch) | |
tree | 235aeebe087aac4668d70b6a5d13d2f632f4586a /source/gameengine/Ketsji/KX_GameObject.cpp | |
parent | 434086dc53aa03205714bb0415550bb158edcf43 (diff) |
BGE: Code Cleanup: LOD hysteresis calculation
* Cleanup duplicated code.
* Remove unnecessary "this->"
Reviewers: kupoman, lordloki
Reviewed By: kupoman, lordloki
Differential Revision: https://developer.blender.org/D1293
Diffstat (limited to 'source/gameengine/Ketsji/KX_GameObject.cpp')
-rw-r--r-- | source/gameengine/Ketsji/KX_GameObject.cpp | 90 |
1 files changed, 48 insertions, 42 deletions
diff --git a/source/gameengine/Ketsji/KX_GameObject.cpp b/source/gameengine/Ketsji/KX_GameObject.cpp index 44d9bfa0cf4..14a7324d2b9 100644 --- a/source/gameengine/Ketsji/KX_GameObject.cpp +++ b/source/gameengine/Ketsji/KX_GameObject.cpp @@ -806,68 +806,74 @@ void KX_GameObject::AddLodMesh(RAS_MeshObject* mesh) m_lodmeshes.push_back(mesh); } + +static float calcHysteresis(KX_Scene *kxscene, LodLevel *lod) +{ + float hystvariance = 0.0f; + + if (!kxscene->IsActivedLodHysteresis()) + return hystvariance; + + short hysteresis = 0; + // if exists, LoD level hysteresis will override scene hysteresis + if (lod->next->flags & OB_LOD_USE_HYST) + hysteresis = lod->next->obhysteresis; + else + hysteresis = kxscene->GetLodHysteresisValue(); + + return hystvariance = MT_abs(lod->next->distance - lod->distance) * hysteresis / 100; +} + void KX_GameObject::UpdateLod(MT_Vector3 &cam_pos) { // Handle dupligroups - if (this->m_pInstanceObjects) { - KX_GameObject * instob; - int count = this->m_pInstanceObjects->GetCount(); + if (m_pInstanceObjects) { + KX_GameObject *instob; + int count = m_pInstanceObjects->GetCount(); for (int i = 0; i < count; i++) { - instob = (KX_GameObject*)this->m_pInstanceObjects->GetValue(i); + instob = (KX_GameObject*)m_pInstanceObjects->GetValue(i); instob->UpdateLod(cam_pos); } } - if (this->m_lodmeshes.empty()) return; + if (m_lodmeshes.empty()) + return; - MT_Vector3 delta = this->NodeGetWorldPosition() - cam_pos; + MT_Vector3 delta = NodeGetWorldPosition() - cam_pos; float distance2 = delta.length2(); int level = 0; - Object *bob = this->GetBlenderObject(); - LodLevel *lod = (LodLevel*) bob->lodlevels.first; - KX_Scene *kxscene = this->GetScene(); + float hystvariance = 0.0f; + Object *bob = GetBlenderObject(); + LodLevel *lod = (LodLevel *)bob->lodlevels.first; + KX_Scene *kxscene = GetScene(); for (; lod; lod = lod->next, level++) { - if (!lod->source || lod->source->type != OB_MESH) level--; - if (!lod->next) break; - if (level == (this->m_previousLodLevel) || (level == (this->m_previousLodLevel + 1))) { - short hysteresis = 0; - if (kxscene->IsActivedLodHysteresis()) { - // if exists, LoD level hysteresis will override scene hysteresis - if (lod->next->flags & OB_LOD_USE_HYST) { - hysteresis = lod->next->obhysteresis; - } - else { - hysteresis = kxscene->GetLodHysteresisValue(); - } - } - float hystvariance = MT_abs(lod->next->distance - lod->distance) * hysteresis / 100; - if ((lod->next->distance + hystvariance) * (lod->next->distance + hystvariance) > distance2) + if (!lod->source || lod->source->type != OB_MESH) + level--; + + if (!lod->next) + break; + + if (level == m_previousLodLevel || level == (m_previousLodLevel + 1)) { + hystvariance = calcHysteresis(kxscene, lod); + float newdistance = lod->next->distance + hystvariance; + if (newdistance * newdistance > distance2) break; } - else if (level == (this->m_previousLodLevel - 1)) { - short hysteresis = 0; - if (kxscene->IsActivedLodHysteresis()) { - // if exists, LoD level hysteresis will override scene hysteresis - if (lod->next->flags & OB_LOD_USE_HYST) { - hysteresis = lod->next->obhysteresis; - } - else { - hysteresis = kxscene->GetLodHysteresisValue(); - } - } - float hystvariance = MT_abs(lod->next->distance - lod->distance) * hysteresis / 100; - if ((lod->next->distance - hystvariance) * (lod->next->distance - hystvariance) > distance2) + else if (level == (m_previousLodLevel - 1)) { + hystvariance = calcHysteresis(kxscene, lod); + float newdistance = lod->next->distance - hystvariance; + if (newdistance * newdistance > distance2) break; } } - RAS_MeshObject *mesh = this->m_lodmeshes[level]; - this->m_currentLodLevel = level; - if (mesh != this->m_meshes[0]) { - this->m_previousLodLevel = level; - this->GetScene()->ReplaceMesh(this, mesh, true, false); + RAS_MeshObject *mesh = m_lodmeshes[level]; + m_currentLodLevel = level; + if (mesh != m_meshes[0]) { + m_previousLodLevel = level; + GetScene()->ReplaceMesh(this, mesh, true, false); } } |