From 102c83d5b94cc6e8580de56913cfe4b38edd0ea8 Mon Sep 17 00:00:00 2001
From: imterah <me@terah.dev>
Date: Sat, 28 Jun 2025 19:49:12 -0400
Subject: [PATCH] fix: Adds look vector correction code

This is needed for the Xreal line of devices as the reverse engineered
driver works, but has... issues. One of them being normal sensor drift,
the other being ~2330 units in any direction for some reason.

This is a hack but I can't think of a normal person that can spin their
head around fast enough to trigger anything past 7 units/pull cycle,
especially considering our already high pulling rate (basically as
fast as we can)
---
 app/renderer/renderer.go | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/app/renderer/renderer.go b/app/renderer/renderer.go
index 79cda44..6bac3a0 100644
--- a/app/renderer/renderer.go
+++ b/app/renderer/renderer.go
@@ -235,6 +235,24 @@ func EnterRenderLoop(config *libconfig.Config, displayMetadata *edidtools.Displa
 					lookVector.Z = (currentRoll - previousRoll) * 6.5
 				}
 
+				// evil look hacks to not randomly explode
+				maxTrustedSize := float64(7)
+
+				if math.Abs(float64(lookVector.X)) > maxTrustedSize {
+					log.Errorf("WOAH. Ignoring extreme camera movement for vector X: %.02f", lookVector.X)
+					lookVector.X = 0
+				}
+
+				if math.Abs(float64(lookVector.Y)) > maxTrustedSize {
+					log.Errorf("WOAH. Ignoring extreme camera movement for vector Y: %.02f", lookVector.Y)
+					lookVector.Y = 0
+				}
+
+				if !hasZVectorDisabledQuirk && math.Abs(float64(lookVector.Z)) > maxTrustedSize {
+					log.Errorf("WOAH. Ignoring extreme camera movement for vector Z: %.02f", lookVector.Z)
+					lookVector.Z = 0
+				}
+
 				rl.UpdateCameraPro(&camera, movementVector, lookVector, 0)
 			}
 		} else {