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Reduce the glitches of far away animating avatars

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Currently, the avatars that are further then 10 meters away have a
very aggressive 15 degree rotation threshold, used to reduce the
amount of rotation joint changes sent over the network.

This PR tunes both the distances and rotation thresholds used for
this LOD culling.
This commit is contained in:
Anthony Thibault 2018-10-05 17:29:25 -07:00
parent 4d4a67cba0
commit 335c60e6b8
2 changed files with 17 additions and 12 deletions
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8
libraries/avatars/src/AvatarData.cpp
View file

@ -206,11 +206,13 @@ float AvatarData::getDistanceBasedMinRotationDOT(glm::vec3 viewerPosition) const
if (distance < AVATAR_DISTANCE_LEVEL_1) {
result = AVATAR_MIN_ROTATION_DOT;
} else if (distance < AVATAR_DISTANCE_LEVEL_2) {
result = ROTATION_CHANGE_15D;
result = ROTATION_CHANGE_2D;
} else if (distance < AVATAR_DISTANCE_LEVEL_3) {
result = ROTATION_CHANGE_45D;
result = ROTATION_CHANGE_4D;
} else if (distance < AVATAR_DISTANCE_LEVEL_4) {
result = ROTATION_CHANGE_90D;
result = ROTATION_CHANGE_6D;
} else if (distance < AVATAR_DISTANCE_LEVEL_5) {
result = ROTATION_CHANGE_15D;
}
return result;
}

21
libraries/avatars/src/AvatarData.h
View file

@ -309,16 +309,19 @@ const float AVATAR_SEND_FULL_UPDATE_RATIO = 0.02f;
const float AVATAR_MIN_ROTATION_DOT = 0.9999999f;
const float AVATAR_MIN_TRANSLATION = 0.0001f;
const float ROTATION_CHANGE_15D = 0.9914449f;
const float ROTATION_CHANGE_45D = 0.9238795f;
const float ROTATION_CHANGE_90D = 0.7071068f;
const float ROTATION_CHANGE_179D = 0.0087266f;
const float AVATAR_DISTANCE_LEVEL_1 = 10.0f;
const float AVATAR_DISTANCE_LEVEL_2 = 100.0f;
const float AVATAR_DISTANCE_LEVEL_3 = 1000.0f;
const float AVATAR_DISTANCE_LEVEL_4 = 10000.0f;
// quaternion dot products
const float ROTATION_CHANGE_2D = 0.99984770f; // 2 degrees
const float ROTATION_CHANGE_4D = 0.99939083f; // 4 degrees
const float ROTATION_CHANGE_6D = 0.99862953f; // 6 degrees
const float ROTATION_CHANGE_15D = 0.99144486f; // 15 degrees
const float ROTATION_CHANGE_179D = 0.00872653f; // 179 degrees
// rotation culling distance thresholds
const float AVATAR_DISTANCE_LEVEL_1 = 12.5f; // meters
const float AVATAR_DISTANCE_LEVEL_2 = 16.6f; // meters
const float AVATAR_DISTANCE_LEVEL_3 = 25.0f; // meters
const float AVATAR_DISTANCE_LEVEL_4 = 50.0f; // meters
const float AVATAR_DISTANCE_LEVEL_5 = 200.0f; // meters
// Where one's own Avatar begins in the world (will be overwritten if avatar data file is found).
// This is the start location in the Sandbox (xyz: 6270, 211, 6000).