mirror of
https://github.com/HifiExperiments/overte.git
synced 2025-07-23 12:34:48 +02:00
5d1ba857c5
- Changed View frstum orientaton to be a quaternion - Implemented packing formats for Orientation Quats, Ratios, and Clipping values - Changed wire format for View Frustum details to be more efficient 28 bytes vs 64 bytes
76 lines
2.2 KiB
C++
76 lines
2.2 KiB
C++
//
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// VoxelAgentData.cpp
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// hifi
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//
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// Created by Stephen Birarda on 3/21/13.
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//
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//
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#include "PacketHeaders.h"
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#include "VoxelAgentData.h"
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#include <cstring>
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#include <cstdio>
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VoxelAgentData::VoxelAgentData(Agent* owningAgent) :
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AvatarData(owningAgent),
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_viewSent(false),
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_voxelPacketAvailableBytes(MAX_VOXEL_PACKET_SIZE),
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_maxSearchLevel(1),
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_maxLevelReachedInLastSearch(1)
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{
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_voxelPacket = new unsigned char[MAX_VOXEL_PACKET_SIZE];
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_voxelPacketAt = _voxelPacket;
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resetVoxelPacket();
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}
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void VoxelAgentData::resetVoxelPacket() {
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_voxelPacket[0] = getWantColor() ? PACKET_HEADER_VOXEL_DATA : PACKET_HEADER_VOXEL_DATA_MONOCHROME;
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_voxelPacketAt = &_voxelPacket[1];
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_voxelPacketAvailableBytes = MAX_VOXEL_PACKET_SIZE - 1;
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_voxelPacketWaiting = false;
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}
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void VoxelAgentData::writeToPacket(unsigned char* buffer, int bytes) {
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memcpy(_voxelPacketAt, buffer, bytes);
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_voxelPacketAvailableBytes -= bytes;
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_voxelPacketAt += bytes;
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_voxelPacketWaiting = true;
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}
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VoxelAgentData::~VoxelAgentData() {
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delete[] _voxelPacket;
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}
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bool VoxelAgentData::updateCurrentViewFrustum() {
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bool currentViewFrustumChanged = false;
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ViewFrustum newestViewFrustum;
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// get position and orientation details from the camera
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newestViewFrustum.setPosition(getCameraPosition());
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newestViewFrustum.setOrientation(getCameraOrientation());
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// Also make sure it's got the correct lens details from the camera
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newestViewFrustum.setFieldOfView(getCameraFov());
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newestViewFrustum.setAspectRatio(getCameraAspectRatio());
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newestViewFrustum.setNearClip(getCameraNearClip());
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newestViewFrustum.setFarClip(getCameraFarClip());
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// if there has been a change, then recalculate
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if (!newestViewFrustum.matches(_currentViewFrustum)) {
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_currentViewFrustum = newestViewFrustum;
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_currentViewFrustum.calculate();
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currentViewFrustumChanged = true;
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}
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return currentViewFrustumChanged;
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}
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void VoxelAgentData::updateLastKnownViewFrustum() {
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bool frustumChanges = !_lastKnownViewFrustum.matches(_currentViewFrustum);
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if (frustumChanges) {
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// save our currentViewFrustum into our lastKnownViewFrustum
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_lastKnownViewFrustum = _currentViewFrustum;
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}
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}
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