Small clean-up for models with negative scales (#1083)

* consistent spaces

* delete obsolete note regarding cesium

3ds Max/Max2Babylon/Exporter/BabylonExporter.CustomAttributes.cs

@@ -37,7 +37,7 @@ partial class BabylonExporter
 #if MAX2022 || MAX2023
             ManagedServices.MaxscriptSDK.ExecuteMaxscriptCommand("obj = maxOps.getNodeByHandle " + gameNode.MaxNode.Handle + ";", ManagedServices.MaxscriptSDK.ScriptSource.NotSpecified);
 #else
-           ManagedServices.MaxscriptSDK.ExecuteMaxscriptCommand("obj = maxOps.getNodeByHandle " + gameNode.MaxNode.Handle + ";");
+            ManagedServices.MaxscriptSDK.ExecuteMaxscriptCommand("obj = maxOps.getNodeByHandle " + gameNode.MaxNode.Handle + ";");
 #endif
 
             return _ExportExtraAttributes(gameNode.IGameObject.IPropertyContainer, babylonScene, excludeAttributes);

3ds Max/Max2Babylon/Exporter/BabylonExporter.ExportItem.cs

@@ -113,7 +113,7 @@ public bool KeepPosition
             }
         }
 
-         const char s_PropertySeparator = ';';
+        const char s_PropertySeparator = ';';
         private const char s_ProperyLayerSeparator = '~';
         const string s_PropertyFormat = "{0};{1};{2};{3};{4}";
         const string s_PropertyNamePrefix = "babylonjs_ExportItem";
@@ -282,11 +282,9 @@ public void LoadFromData(string propertyName)
             {
                 throw new Exception("Invalid property name, can't deserialize.");
             }
-
 
             string itemGuidStr = propertyName.Remove(0, s_PropertyNamePrefix.Length);
 
-
             if (!Guid.TryParse(itemGuidStr, out itemGuid))
             {   
                 Loader.Core.PushPrompt("Error: Invalid ID, can't deserialize.");

3ds Max/Max2Babylon/Exporter/BabylonExporter.Material.Pbr.cs

@@ -45,7 +45,7 @@ public PbrMetalRoughDecorator(IIGameMaterial node) : base(node)
         public ITexmap MetalnessMap => _getTexMap(_node, "metalness_map");
         public float Roughness => Properties?.GetFloatProperty("roughness", 0) ?? 0;
         public ITexmap RoughnessMap => _getTexMap(_node, "roughness_map");
-     }
+    }
 
     public class PbrSpecGlossDecorator : PbrGameMaterialDecorator
     {
@@ -290,14 +290,14 @@ private void ExportPbrSpecGlossMaterial(IIGameMaterial materialNode, BabylonScen
             // the target material
             var babylonMaterial = new BabylonPBRSpecularGlossinessMaterial(maxDecorator.Id)
             {
-                 maxGameMaterial = materialNode,
-                 name = maxDecorator.Name,
-                 backFaceCulling = babylonDecorator.BackFaceCulling,
-                 doubleSided = !babylonDecorator.BackFaceCulling,
-                 separateCullingPass = babylonDecorator.SeparateCullingPass,
-                 isUnlit = babylonDecorator.IsUnlit,
-                 baseColor = maxDecorator.BaseColor.ToArray(),
-             };
+                maxGameMaterial = materialNode,
+                name = maxDecorator.Name,
+                backFaceCulling = babylonDecorator.BackFaceCulling,
+                doubleSided = !babylonDecorator.BackFaceCulling,
+                separateCullingPass = babylonDecorator.SeparateCullingPass,
+                isUnlit = babylonDecorator.IsUnlit,
+                baseColor = maxDecorator.BaseColor.ToArray(),
+            };
 
             // --- Global ---
             if (babylonMaterial.isUnlit)

3ds Max/Max2Babylon/Exporter/BabylonExporter.Material.cs

@@ -406,7 +406,7 @@ private void ExportStandardMaterial(IIGameMaterial materialNode, IIPropertyConta
                 {
                     babylonMaterial.opacityFresnelParameters = fresnelParameters;
                     if (babylonMaterial.alpha == 1 &&
-                         babylonMaterial.opacityTexture == null)
+                        babylonMaterial.opacityTexture == null)
                     {
                         babylonMaterial.alpha = 0;
                     }
@@ -589,7 +589,6 @@ private void ExportPhysicalMaterial(IIGameMaterial materialNode, IIPropertyConta
                     babylonMaterial.roughness = 1 - babylonMaterial.roughness;
                 }
 
-
                 // Self illumination is computed from emission color, luminance, temperature and weight
                 babylonMaterial.emissive = materialNode.MaxMaterial.GetSelfIllumColorOn(0, false)
                                                 ? materialNode.MaxMaterial.GetSelfIllumColor(0, false).Scale(selfIllumScale).ToArray()

3ds Max/Max2Babylon/Exporter/BabylonExporter.Mesh.cs

@@ -1021,11 +1021,6 @@ private void ExtractFace(IIGameSkin skin, IIGameMesh unskinnedMesh, BabylonAbstr
         {
             int a, b, c;
             // parity is TRUE, if determinant negative ( counter-intuitive convention of 3ds max, see docs... :/ )
-
-            // fix for cesium: currently, cesium does not expect a reversed winding order for negative scales
-            //if (false)
-
-            // for threejs and babylonjs (handle negative scales correctly (reversed winding order expected)
             if (invertedWorldMatrix.Parity)
             {
                 // flipped case: reverse winding order
@@ -1380,7 +1375,7 @@ private float GetW(IPoint3 normal, IPoint3 tangent, IPoint3 bitangent)
             {
                 return 1;
             }
- 
+
             float nx = MathUtilities.RoundToIfAlmostEqualTo(normal.X, 0, Tools.Epsilon);
             float ny = MathUtilities.RoundToIfAlmostEqualTo(normal.Y, 0, Tools.Epsilon);
             float nz = MathUtilities.RoundToIfAlmostEqualTo(normal.Z, 0, Tools.Epsilon);
@@ -1393,7 +1388,7 @@ private float GetW(IPoint3 normal, IPoint3 tangent, IPoint3 bitangent)
 
             // theorical bittangent
             MathUtilities.CrossProduct(nx, ny, nz, tx, ty, tz, out float x, out float y, out float z);
- 
+
             // Speaking in broadest terms, if the dot product of two non-zero vectors is positive, 
             // then the two vectors point in the same general direction, meaning less than 90 degrees. 
             // If the dot product is negative, then the two vectors point in opposite directions, 

3ds Max/Max2Babylon/Exporter/BabylonExporter.Texture.cs

@@ -546,7 +546,7 @@ private BabylonTexture ExportSpecularGlossinessTexture(float[] specularColor, IT
         {
             var specularTexture = _getBitmapTex(specularTexMap);
             var glossinessTexture = _getBitmapTex(glossinessTexMap);
-             
+
             // we are trying to get the best output format, function of source and policy.
             var paths = new IBitmapTex[] { specularTexture, glossinessTexture}.Where(t => t != null).Select(t => t.Map.FileName);
             var policy = exportParameters.textureFormatExportPolicy;
@@ -1217,8 +1217,6 @@ private IStdUVGen _exportUV(IStdUVGen uvGen, BabylonTexture babylonTexture)
             RaiseMessage(MaxTextureTransformToString(uvGen));
 #endif 
 
-
-
             var offset = new BabylonVector3(uvGen.GetUOffs(0), uvGen.GetVOffs(0), 0);
             var scale = new BabylonVector3(uvGen.GetUScl(0), uvGen.GetVScl(0), 1);
             //max rotation is horlogic, here we move using trigonometric, so anti - horlogic
@@ -1257,7 +1255,7 @@ private IStdUVGen _exportUV(IStdUVGen uvGen, BabylonTexture babylonTexture)
                 var translateBack = BabylonMatrix.Translation(center);
                 var t = translateToOrigin * scaling * rotate * translateBack ;
                 offset = origin * t;
-             }
+            }
 
             babylonTexture.uOffset = offset.X%1;
             babylonTexture.vOffset = (1 - offset.Y) % 1;

3ds Max/Max2Babylon/Exporter/BabylonExporter.cs

@@ -175,8 +175,8 @@ public void BakeAnimationsFrame(IINode node,BakeAnimationType bakeAnimationType)
                     tmp = Point()
                     --store anim to a point
                     for t = animationRange.start to animationRange.end do (
-                       with animate on at time t tmp.transform = obj.transform
-                       )
+                        with animate on at time t tmp.transform = obj.transform
+                        )
 
                     --remove constraint on original object
                     obj.pos.controller = Position_XYZ ()
@@ -186,11 +186,11 @@ public void BakeAnimationsFrame(IINode node,BakeAnimationType bakeAnimationType)
 
                     --copy back anim from point
                     for t = animationRange.start to animationRange.end do (
-                       with animate on at time t obj.transform = tmp.transform
-                       )
+                        with animate on at time t obj.transform = tmp.transform
+                        )
                     delete tmp
                 )
-             ");
+            ");
         }
 
         public void ExportClosedContainers()
@@ -333,7 +333,7 @@ public void Export(MaxExportParameters exportParameters)
 
             var rawScene = Loader.Core.RootNode;
 
-             string outputFormat = exportParameters.outputFormat;
+            string outputFormat = exportParameters.outputFormat;
             isBabylonExported = outputFormat == "babylon" || outputFormat == "binary babylon";
             isGltfExported = outputFormat == "gltf" || outputFormat == "glb";
 

3ds Max/Max2Babylon/Exporter/GlobalVertex.cs

@@ -37,7 +37,6 @@ public GlobalVertex(GlobalVertex other)
 
         public override int GetHashCode()
         {
-
             //return string.Format("{0}-{1}-{2}-{3}-{4}-{5}-{6}-{7}-{8}-{9}",
             //                        BaseIndex,
             //                        CurrentIndex,