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| 1 | // Make note of what scenery falls outside of our view frustum. | |
| 2 | void HK_CALL cull_scenery( hkpWorld* world, | |
| 3 | tbb::concurrent_vector<Physics_Scenery*> vec_scenery, | |
| 4 | std::vector<hkUint32>* ids_in_frustum ){
| |
| 5 | ||
| 6 | Camera_Alt const* pcam = World_Manager::GetPlayereCamera(); | |
| 7 | glm::vec3 look_from = World_Manager::player->get_lookFrom(); | |
| 8 | glm::vec3 look_to = World_Manager::player->get_lookTo(); | |
| 9 | hkVector4 transFrom(look_from.x,look_from.y,look_from.z,0); | |
| 10 | hkVector4 transTo(look_to.x,look_to.y,look_to.z,0); | |
| 11 | ||
| 12 | // Lock the world and get the tree broad-phase. | |
| 13 | world->lock(); | |
| 14 | hkpTreeBroadPhase* broadphase = static_cast<hkpTreeBroadPhase*>(world->getBroadPhase()); | |
| 15 | //broadphase->fullOptimize(); | |
| 16 | ||
| 17 | ||
| 18 | glm::vec3 f_r = -pcam->getXAxis(); | |
| 19 | glm::vec3 f_u = -pcam->getYAxis(); | |
| 20 | glm::vec3 f_f = -pcam->getZAxis(); | |
| 21 | ||
| 22 | // organize our axes................................... | |
| 23 | float sc = 50.0f; | |
| 24 | hkVector4 start_fu( f_u.x, f_u.y, f_u.z, 1 ); | |
| 25 | hkVector4 end_fu( f_u.x*sc, f_u.y*sc, f_u.z*sc, 1 ); | |
| 26 | hkVector4 start_fr( f_r.x, f_r.y, f_r.z, 1 ); | |
| 27 | hkVector4 end_fr( f_r.x*sc, f_r.y*sc, f_r.z*sc, 1 ); | |
| 28 | hkVector4 start_ff( f_f.x, f_f.y, f_f.z, 1 ); | |
| 29 | hkVector4 end_ff( f_f.x*sc, f_f.y*sc, f_f.z*sc, 1 ); | |
| 30 | start_fu.add(transFrom); | |
| 31 | end_fu.add(transFrom); | |
| 32 | start_fr.add(transFrom); | |
| 33 | end_fr.add(transFrom); | |
| 34 | start_ff.add(transFrom); | |
| 35 | end_ff.add(transFrom); | |
| 36 | //..................................................... | |
| 37 | if( VISUALIZE_AXES ){
| |
| 38 | // Visualize the axes in the vdb........................ | |
| 39 | HK_DISPLAY_LINE( start_fu, end_fu ,hkColor::RED); | |
| 40 | HK_DISPLAY_LINE( start_fr, end_fr ,hkColor::AZURE); | |
| 41 | HK_DISPLAY_LINE( start_ff, end_ff ,hkColor::GREEN); | |
| 42 | } | |
| 43 | //........................................................ | |
| 44 | ||
| 45 | // Create frustum vertices. | |
| 46 | hkVector4 nearPlaneQuad[4]; | |
| 47 | ||
| 48 | // Find corners according to our direction. | |
| 49 | float s1=10.0f; | |
| 50 | glm::vec3 bl( f_r*-s1 + f_u*-s1 ); | |
| 51 | glm::vec3 br( f_r*s1 + f_u*-s1 ); | |
| 52 | glm::vec3 tr( f_r*s1 + f_u*s1 ); | |
| 53 | glm::vec3 tl( f_r*-s1 + f_u*s1 ); | |
| 54 | ||
| 55 | nearPlaneQuad[0].set( bl.x, bl.y, bl.z ); | |
| 56 | nearPlaneQuad[1].set( br.x, br.y, br.z ); | |
| 57 | nearPlaneQuad[2].set( tr.x, tr.y, tr.z ); | |
| 58 | nearPlaneQuad[3].set( tl.x, tl.y, tl.z ); | |
| 59 | ||
| 60 | hkVector4 farPlaneQuad[4]; | |
| 61 | hkSimdReal fovFactor = pcam->getFov() * 6.5f; | |
| 62 | hkReal farOffset = pcam->getZFar(); | |
| 63 | for(int i=0; i<4; ++i) | |
| 64 | {
| |
| 65 | farPlaneQuad[i].setMul4(fovFactor, nearPlaneQuad[i]); | |
| 66 | ||
| 67 | - | /*hkVector4 dist; |
| 67 | + | |
| 68 | - | dist.setMul4( farOffset, hkVector4(f_f.x,f_f.y,f_f.z,0) ); |
| 68 | + | |
| 69 | - | farPlaneQuad[i].add( dist );*/ |
| 69 | + | |
| 70 | } | |
| 71 | ||
| 72 | ||
| 73 | ||
| 74 | // Draw frustum. | |
| 75 | if( VISUALIZE_FRUSTUM ){
| |
| 76 | HK_DISPLAY_LINE(nearPlaneQuad[0], nearPlaneQuad[1], hkColor::YELLOW); | |
| 77 | HK_DISPLAY_LINE(nearPlaneQuad[1], nearPlaneQuad[2], hkColor::YELLOW); | |
| 78 | HK_DISPLAY_LINE(nearPlaneQuad[2], nearPlaneQuad[3], hkColor::YELLOW); | |
| 79 | HK_DISPLAY_LINE(nearPlaneQuad[3], nearPlaneQuad[0], hkColor::YELLOW); | |
| 80 | ||
| 81 | HK_DISPLAY_LINE(farPlaneQuad[0], farPlaneQuad[1], hkColor::YELLOW); | |
| 82 | HK_DISPLAY_LINE(farPlaneQuad[1], farPlaneQuad[2], hkColor::YELLOW); | |
| 83 | HK_DISPLAY_LINE(farPlaneQuad[2], farPlaneQuad[3], hkColor::YELLOW); | |
| 84 | HK_DISPLAY_LINE(farPlaneQuad[3], farPlaneQuad[0], hkColor::YELLOW); | |
| 85 | ||
| 86 | HK_DISPLAY_LINE(farPlaneQuad[0], nearPlaneQuad[0], hkColor::YELLOW); | |
| 87 | HK_DISPLAY_LINE(farPlaneQuad[1], nearPlaneQuad[1], hkColor::YELLOW); | |
| 88 | HK_DISPLAY_LINE(farPlaneQuad[2], nearPlaneQuad[2], hkColor::YELLOW); | |
| 89 | HK_DISPLAY_LINE(farPlaneQuad[3], nearPlaneQuad[3], hkColor::YELLOW); | |
| 90 | } | |
| 91 | ||
| 92 | // Compute frustum planes. | |
| 93 | hkVector4 planes[6]; | |
| 94 | ||
| 95 | // Side planes | |
| 96 | planes[0] = computePlaneFromTriangle(nearPlaneQuad[0], farPlaneQuad[0], nearPlaneQuad[1]); | |
| 97 | planes[1] = computePlaneFromTriangle(nearPlaneQuad[1], farPlaneQuad[1], nearPlaneQuad[2]); | |
| 98 | planes[2] = computePlaneFromTriangle(nearPlaneQuad[2], farPlaneQuad[2], nearPlaneQuad[3]); | |
| 99 | planes[3] = computePlaneFromTriangle(nearPlaneQuad[3], farPlaneQuad[3], nearPlaneQuad[0]); | |
| 100 | ||
| 101 | // Near plane | |
| 102 | planes[4] = computePlaneFromTriangle(nearPlaneQuad[0], nearPlaneQuad[1], nearPlaneQuad[2]); | |
| 103 | ||
| 104 | // Far plane | |
| 105 | planes[5] = computePlaneFromTriangle(farPlaneQuad[0], farPlaneQuad[2], farPlaneQuad[1]); | |
| 106 | ||
| 107 | ||
| 108 | broadphase->lock(); | |
| 109 | // Cull using frustum. | |
| 110 | hkArray<const hkpBroadPhaseHandle*> handles; | |
| 111 | {
| |
| 112 | HK_TIME_CODE_BLOCK("Culling",this);
| |
| 113 | handles.reserve(4096 / sizeof(const hkpBroadPhaseHandle*)); | |
| 114 | broadphase->queryConvex(planes, 6, handles); | |
| 115 | } | |
| 116 | ||
| 117 | // Get out objects visible from the frustum. | |
| 118 | for(int i=0; i<handles.getSize(); ++i) | |
| 119 | {
| |
| 120 | ids_in_frustum->push_back( handles[i]->m_id ); | |
| 121 | } | |
| 122 | ||
| 123 | broadphase->unlock(); | |
| 124 | world->unlock(); | |
| 125 | } |
