Add option to control hover text fade distance and range.

No UI yet.

indra/newview/llhudtext.cpp

@@ -89,8 +89,8 @@ LLHUDText::LLHUDText(const U8 type) :
 {
 	mColor = LLColor4(1.f, 1.f, 1.f, 1.f);
 	mDoFade = TRUE;
-	mFadeDistance = 8.f;
-	mFadeRange = 4.f;
+	mFadeDistance = gSavedSettings.getF32("AlchemyHudTextFadeDistance");
+	mFadeRange = gSavedSettings.getF32("AlchemyHudTextFadeRange");
 	mZCompare = TRUE;
 	mOffscreen = FALSE;
 	mRadius = 0.1f;
@@ -129,7 +129,7 @@ void LLHUDText::renderText()
 	LLColor4 text_color = mColor;
 	if (mDoFade)
 	{
-		if (mLastDistance > mFadeDistance)
+		if (mLastDistance > mFadeDistance && mFadeRange > 0.f)
 		{
 			alpha_factor = llmax(0.f, 1.f - (mLastDistance - mFadeDistance)/mFadeRange);
 			text_color.mV[3] = text_color.mV[3]*alpha_factor;
@@ -690,3 +690,15 @@ void LLHUDText::refreshAllObjectText(EObjectTextFilter eObjFilter)
 	}
 }
 // [/RLVa:KB]
+
+void LLHUDText::onFadeSettingsChanged()
+{
+	for (LLHUDText* text : sTextObjects)
+	{
+		if (text)
+		{
+			text->mFadeDistance = gSavedSettings.getF32("AlchemyHudTextFadeDistance");
+			text->mFadeRange = gSavedSettings.getF32("AlchemyHudTextFadeRange");
+		}
+	}
+}
\ No newline at end of file