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Fix zero-divide.

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This commit is contained in:
Nissim Hadar 2017-10-26 08:39:22 -07:00
parent 2ec62ecc9b
commit b820f397fc
1 changed files with 17 additions and 2 deletions
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19
libraries/model/src/model/Haze.h
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@ -30,10 +30,25 @@ namespace model {
-LOG_P_005 / hazeRange_m.z);
}
inline float convertHazeRangeToHazeRangeFactor(const float hazeRange_m) { return (-LOG_P_005 / hazeRange_m); }
inline float convertHazeRangeToHazeRangeFactor(const float hazeRange_m) {
// limit range to no less than 1.0 metres
if (hazeRange_m < 1.0f) {
return -LOG_P_005;
}
else {
return -LOG_P_005 / hazeRange_m;
}
}
inline float convertHazeAltitudeToHazeAltitudeFactor(const float hazeAltitude_m) {
return -LOG_P_005 / hazeAltitude_m;
// limit altitude to no less than 1.0 metres
if (hazeAltitude_m < 1.0) {
return -LOG_P_005;
}
else {
return -LOG_P_005 / hazeAltitude_m;
}
}
// Derivation (s is the proportion of sun blend, a is the angle at which the blend is 50%, solve for m = 0.5