Mirrors/overte
3
0
Fork 0
mirror of https://github.com/overte-org/overte.git synced 2025-04-21 06:44:06 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 2

Increase the rate at which we increase detail and put a limit on the LOD

Browse source 
multiplier so that it never takes more than about five seconds to return to
default detail.  Also, since there seems to be a weird issue where OS X
throttles the frame rate to 30 fps (independent of our own throttling), use
that as the lower adjustment range.
This commit is contained in:
Andrzej Kapolka 2014-04-04 14:31:30 -07:00
parent a57002038b
commit 3a125db1f8
1 changed files with 7 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
interface/src/Menu.cpp
View file

@ -1260,20 +1260,22 @@ void Menu::autoAdjustLOD(float currentFPS) {
quint64 now = usecTimestampNow();
const float ADJUST_AVATAR_LOD_DOWN_FPS = 30.0f;
const quint64 ADJUST_AVATAR_LOD_DOWN_DELAY = 1000 * 1000;
if (_fastFPSAverage.getAverage() < ADJUST_LOD_DOWN_FPS) {
if (_fastFPSAverage.getAverage() < ADJUST_AVATAR_LOD_DOWN_FPS) {
if (now - _lastAvatarDetailDrop > ADJUST_AVATAR_LOD_DOWN_DELAY) {
// attempt to lower the detail in proportion to the fps difference
float targetFps = (ADJUST_LOD_DOWN_FPS + ADJUST_LOD_UP_FPS) * 0.5f;
float targetFps = (ADJUST_AVATAR_LOD_DOWN_FPS + ADJUST_LOD_UP_FPS) * 0.5f;
float averageFps = _fastFPSAverage.getAverage();
const float MAXIMUM_MULTIPLIER_SCALE = 2.0f;
_avatarLODDistanceMultiplier *= (averageFps < EPSILON) ? MAXIMUM_MULTIPLIER_SCALE :
qMin(MAXIMUM_MULTIPLIER_SCALE, targetFps / averageFps);
const float MAXIMUM_DISTANCE_MULTIPLIER = 15.0f;
_avatarLODDistanceMultiplier = qMin(MAXIMUM_DISTANCE_MULTIPLIER, _avatarLODDistanceMultiplier *
(averageFps < EPSILON ? MAXIMUM_MULTIPLIER_SCALE : qMin(MAXIMUM_MULTIPLIER_SCALE, targetFps / averageFps)));
_lastAvatarDetailDrop = now;
}
} else if (_fastFPSAverage.getAverage() > ADJUST_LOD_UP_FPS) {
// let the detail level creep slowly upwards
const float DISTANCE_DECREASE_RATE = 0.02f;
const float DISTANCE_DECREASE_RATE = 0.05f;
const float MINIMUM_DISTANCE_MULTIPLIER = 0.1f;
_avatarLODDistanceMultiplier = qMax(MINIMUM_DISTANCE_MULTIPLIER,
_avatarLODDistanceMultiplier - DISTANCE_DECREASE_RATE);