From 5845bc3fca6908b9f2d679a90c5c3e819d461231 Mon Sep 17 00:00:00 2001
From: "W2.Wizard" <leon.delahamette@hotmail.de>
Date: Mon, 25 Jan 2021 22:03:30 +0100
Subject: [PATCH 1/2] Added Spheremask node

---
 Source/Editor/Surface/Archetypes/Material.cs  | 29 +++++++++++++++++++
 .../MaterialGenerator.Material.cpp            | 21 ++++++++++++++
 2 files changed, 50 insertions(+)

diff --git a/Source/Editor/Surface/Archetypes/Material.cs b/Source/Editor/Surface/Archetypes/Material.cs
index ee70c2b5e..43110a9de 100644
--- a/Source/Editor/Surface/Archetypes/Material.cs
+++ b/Source/Editor/Surface/Archetypes/Material.cs
@@ -672,6 +672,35 @@ namespace FlaxEditor.Surface.Archetypes
                     NodeElementArchetype.Factory.Output(0, string.Empty, typeof(Vector2), 3),
                 }
             },
+            new NodeArchetype
+            {
+                TypeID = 28,
+                Title = "Sphere Mask",
+                Description = "Creates a sphere mask",
+                Flags = NodeFlags.MaterialGraph,
+                Size = new Vector2(150, 100),
+                ConnectionsHints = ConnectionsHint.Vector,
+                IndependentBoxes = new[]
+                {
+                    0,
+                    1
+                },
+                DefaultValues = new object[]
+                {
+                    0.3f,
+                    0.5f,
+                    false
+                },
+                Elements = new[]
+                {
+                    NodeElementArchetype.Factory.Input(0, "A", true, null, 0),
+                    NodeElementArchetype.Factory.Input(1, "B", true, null, 1),
+                    NodeElementArchetype.Factory.Input(2, "Radius", true, typeof(float), 2, 0),
+                    NodeElementArchetype.Factory.Input(3, "Hardness", true, typeof(float), 3, 1),
+                    NodeElementArchetype.Factory.Input(4, "Invert", true, typeof(bool), 4, 2),
+                    NodeElementArchetype.Factory.Output(0, string.Empty, typeof(float), 5),
+                }
+            },
         };
     }
 }
diff --git a/Source/Engine/Tools/MaterialGenerator/MaterialGenerator.Material.cpp b/Source/Engine/Tools/MaterialGenerator/MaterialGenerator.Material.cpp
index c4d7c39e5..44b465ad7 100644
--- a/Source/Engine/Tools/MaterialGenerator/MaterialGenerator.Material.cpp
+++ b/Source/Engine/Tools/MaterialGenerator/MaterialGenerator.Material.cpp
@@ -364,6 +364,27 @@ void MaterialGenerator::ProcessGroupMaterial(Box* box, Node* node, Value& value)
         value = writeLocal(ValueType::Vector2, String::Format(TEXT("{3} + float2(dot({0},{1}), dot({0},{2}))"), x1.Value, dotB1.Value, dotB2.Value, center.Value), node);
         break;
     }
+        // SphereMask
+    case 28:
+    {
+
+        Value a = tryGetValue(node->GetBox(0), 0, Value::Zero);
+        Value b = tryGetValue(node->GetBox(1), 1, Value::Zero).Cast(a.Type);
+
+        Value radius = tryGetValue(node->GetBox(2), node->Values[0]).AsFloat();
+        Value hardness = tryGetValue(node->GetBox(3), node->Values[1]).AsFloat();
+        Value invert = tryGetValue(node->GetBox(4), node->Values[2]).AsBool();
+
+        // Get distance and apply radius
+        auto x1 = writeLocal(ValueType::Float, String::Format(TEXT("distance({0},{1}) * (1 / {2})"), a.Value, b.Value, radius.Value), node);
+
+        // Apply hardness, use 0.991 since any value above will result in harsh aliasing
+        auto x2 = writeLocal(ValueType::Float, String::Format(TEXT("saturate((1 - {0}) * (1 / (1 - clamp({1}, 0, 0.991f))))"), x1.Value, hardness.Value), node);
+        
+        value = writeLocal(ValueType::Float, String::Format(TEXT("{0} ? (1 - {1}) : {1}"), invert.Value, x2.Value), node);
+
+        break;
+    }
     default:
         break;
     }

From 602fb44a23134e13c1b03738b48d597948225127 Mon Sep 17 00:00:00 2001
From: "W2.Wizard" <leon.delahamette@hotmail.de>
Date: Mon, 25 Jan 2021 22:30:55 +0100
Subject: [PATCH 2/2] Formatting

---
 .../Tools/MaterialGenerator/MaterialGenerator.Material.cpp | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/Source/Engine/Tools/MaterialGenerator/MaterialGenerator.Material.cpp b/Source/Engine/Tools/MaterialGenerator/MaterialGenerator.Material.cpp
index 44b465ad7..79a18bde4 100644
--- a/Source/Engine/Tools/MaterialGenerator/MaterialGenerator.Material.cpp
+++ b/Source/Engine/Tools/MaterialGenerator/MaterialGenerator.Material.cpp
@@ -367,10 +367,8 @@ void MaterialGenerator::ProcessGroupMaterial(Box* box, Node* node, Value& value)
         // SphereMask
     case 28:
     {
-
         Value a = tryGetValue(node->GetBox(0), 0, Value::Zero);
         Value b = tryGetValue(node->GetBox(1), 1, Value::Zero).Cast(a.Type);
-
         Value radius = tryGetValue(node->GetBox(2), node->Values[0]).AsFloat();
         Value hardness = tryGetValue(node->GetBox(3), node->Values[1]).AsFloat();
         Value invert = tryGetValue(node->GetBox(4), node->Values[2]).AsBool();
@@ -378,11 +376,10 @@ void MaterialGenerator::ProcessGroupMaterial(Box* box, Node* node, Value& value)
         // Get distance and apply radius
         auto x1 = writeLocal(ValueType::Float, String::Format(TEXT("distance({0},{1}) * (1 / {2})"), a.Value, b.Value, radius.Value), node);
 
-        // Apply hardness, use 0.991 since any value above will result in harsh aliasing
+        // Apply hardness, use 0.991 as max since any value above will result in harsh aliasing
         auto x2 = writeLocal(ValueType::Float, String::Format(TEXT("saturate((1 - {0}) * (1 / (1 - clamp({1}, 0, 0.991f))))"), x1.Value, hardness.Value), node);
-        
+  
         value = writeLocal(ValueType::Float, String::Format(TEXT("{0} ? (1 - {1}) : {1}"), invert.Value, x2.Value), node);
-
         break;
     }
     default: