Fixed history reset on AutoExposure

Author: Chman

PostProcessing/Runtime/Effects/AutoExposure.cs

@@ -50,8 +50,6 @@ public sealed class AutoExposureRenderer : PostProcessEffectRenderer<AutoExposur
         int m_AutoExposurePingPong;
         RenderTexture m_CurrentAutoExposure;
 
-        bool m_FirstFrame = true;
-
         void CheckTexture(int id)
         {
             if (m_AutoExposurePool[id] == null || !m_AutoExposurePool[id].IsCreated())
@@ -93,7 +91,7 @@ public override void Render(PostProcessRenderContext context)
             sheet.properties.SetVector(ShaderIDs.ScaleOffsetRes, context.logHistogram.GetHistogramScaleOffsetRes(context));
             sheet.properties.SetFloat(ShaderIDs.ExposureCompensation, settings.keyValue.value);
 
-            if (m_FirstFrame || !Application.isPlaying)
+            if (m_ResetHistory || !Application.isPlaying)
             {
                 // We don't want eye adaptation when not in play mode because the GameView isn't
                 // animated, thus making it harder to tweak. Just use the final audo exposure value.
@@ -102,6 +100,8 @@ public override void Render(PostProcessRenderContext context)
 
                 // Copy current exposure to the other pingpong target to avoid adapting from black
                 RuntimeUtilities.CopyTexture(cmd, m_AutoExposurePool[0], m_AutoExposurePool[1]);
+
+                m_ResetHistory = false;
             }
             else
             {
@@ -117,7 +117,6 @@ public override void Render(PostProcessRenderContext context)
 
             context.autoExposureTexture = m_CurrentAutoExposure;
             context.autoExposure = settings;
-            m_FirstFrame = false;
         }
 
         public override void Release()