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Merge pull request #2603 from ey6es/master

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Increase the rate at which we increase detail and put a limit on the LOD
This commit is contained in:
Andrzej Kapolka 2014-04-04 14:41:17 -07:00
commit 468a4b79fd
1 changed files with 7 additions and 5 deletions
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12
interface/src/Menu.cpp
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@ -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);