Fix corrupted text rendering

Fix text corruption when rendering text right after a scene change by delaying it by a single frame in OnLoad

Source/ConformalDecals/ModuleConformalText.cs

@@ -1,3 +1,4 @@
+using System.Collections;
 using ConformalDecals.MaterialProperties;
 using ConformalDecals.Text;
 using ConformalDecals.UI;
@@ -99,7 +100,15 @@ namespace ConformalDecals {
             base.OnLoad(node);
             OnAfterDeserialize();
 
-            UpdateTextRecursive();
+            if (HighLogic.LoadedSceneIsGame) {
+                // For some reason, rendering doesnt work right on the first frame a scene is loaded
+                // So delay any rendering until the next frame when called in OnLoad
+                // This is probably a problem with Unity, not KSP
+                StartCoroutine(UpdateTextLate());
+            }
+            else {
+                UpdateText();
+            }
         }
 
         public override void OnSave(ConfigNode node) {
@@ -107,12 +116,6 @@ namespace ConformalDecals {
             base.OnSave(node);
         }
 
-        public override void OnStart(StartState state) {
-            base.OnStart(state);
-
-            UpdateTextRecursive();
-        }
-
         public override void OnAwake() {
             base.OnAwake();
 
@@ -210,7 +213,7 @@ namespace ConformalDecals {
         public void OnAfterDeserialize() {
             _font = DecalConfig.GetFont(fontName);
             _style = new DecalTextStyle((FontStyles) style, vertical, lineSpacing, charSpacing);
-            
+
             if (!ParseUtil.TryParseColor32(fillColor, out _fillColor)) {
                 Logging.LogWarning($"Improperly formatted color value for fill: '{fillColor}'");
                 _fillColor = Color.magenta;
@@ -252,6 +255,11 @@ namespace ConformalDecals {
             }
         }
 
+        private IEnumerator UpdateTextLate() {
+            yield return null;
+            UpdateText();
+        }
+
         private void UpdateText() {
             // Render text
             var newText = new DecalText(text, _font, _style);

Source/ConformalDecals/Text/TextRenderer.cs

@@ -257,6 +257,7 @@ namespace ConformalDecals.Text {
             Graphics.SetRenderTarget(renderTex);
             GL.PushMatrix();
             GL.LoadProjectionMatrix(matrix);
+            GL.LoadIdentity();
             GL.Clear(false, true, Color.black);
 
             for (var i = 0; i < meshes.Length; i++) {