Refractor, make RenderingObject a component.

URasterizer/Assembly-CSharp.csproj

 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
-    <LangVersion>latest</LangVersion>
+    <LangVersion>8.0</LangVersion>
   </PropertyGroup>
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
@@ -52,13 +52,16 @@
     <UnityBuildTarget>StandaloneWindows64:19</UnityBuildTarget>
     <UnityVersion>2020.3.25f1c1</UnityVersion>
   </PropertyGroup>
+  <ItemGroup>
+    <Analyzer Include="C:\Program Files (x86)\Microsoft Visual Studio Tools for Unity\16.0\Analyzers\Microsoft.Unity.Analyzers.dll" />
+  </ItemGroup>
   <ItemGroup>
     <Compile Include="Assets\URasterizer\Codes\RenderingObject.cs" />
+    <Compile Include="Assets\URasterizer\Codes\StatsPanel.cs" />
     <Compile Include="Assets\URasterizer\Codes\CameraRenderer.cs" />
     <Compile Include="Assets\URasterizer\Codes\Triangle.cs" />
     <Compile Include="Assets\URasterizer\Codes\Rasterizer.cs" />
     <Compile Include="Assets\URasterizer\Codes\TransformTool.cs" />
-    <Compile Include="Assets\URasterizer\Codes\StatsPanel.cs" />
   </ItemGroup>
   <ItemGroup>
     <Reference Include="UnityEngine">

URasterizer/Assets/URasterizer/Codes/CameraRenderer.cs

@@ -12,9 +12,8 @@ namespace URasterizer
         public RawImage rawImg;
 
         public Color ClearColor = Color.black;
-
-        public Transform[] objNodes;
-        private RenderingObject[] renderingObjects;
+        
+        private List<RenderingObject> renderingObjects = new List<RenderingObject>();
         
         private Camera _camera;        
         public bool WireframeMode;
@@ -33,23 +32,31 @@ namespace URasterizer
         {
             _camera = GetComponent<Camera>();
 
-            //collect render objects
-            renderingObjects = new RenderingObject[objNodes.Length];
-            for (int i = 0; i < objNodes.Length; ++i)
+            var rootObjs = this.gameObject.scene.GetRootGameObjects();
+            renderingObjects.Clear();
+            foreach(var o in rootObjs)
             {
-                renderingObjects[i] = new RenderingObject(objNodes[i]);
+                renderingObjects.AddRange(o.GetComponentsInChildren<RenderingObject>());
             }
+            
+            Debug.Log($"Find rendering objs count:{renderingObjects.Count}");
+            
 
-            if (objNodes.Length == 0)
-            {
-                renderingObjects = new RenderingObject[1];
+            //ֶõmesh
+            {                
                 var _mesh = new Mesh
                 {
                     vertices = new Vector3[] { new Vector3(1f, 0f, -2f), new Vector3(0f, 2f, -2f), new Vector3(-1f, 0f, -2f),
                             new Vector3(1.5f, 0.5f, -1.5f), new Vector3(0.5f, 2.5f, -1.5f), new Vector3(-0.5f, 0.5f, -1.5f)},
                     triangles = new int[] { 0, 1, 2, 3, 4, 5 }
                 };
-                renderingObjects[0] = new RenderingObject(_mesh);
+                var go = new GameObject("_handmake_mesh_");
+                var ro = go.AddComponent<RenderingObject>();
+                ro.mesh = _mesh;
+                go.AddComponent<MeshFilter>().mesh = _mesh;
+                go.AddComponent<MeshRenderer>();
+
+                renderingObjects.Add(ro);
             }
 
             RectTransform rect = rawImg.GetComponent<RectTransform>();
@@ -69,9 +76,12 @@ namespace URasterizer
             var r = _rasterizer;
             r.Clear(BufferMask.Color | BufferMask.Depth);
 
-            for(int i=0; i<renderingObjects.Length; ++i)
+            for(int i=0; i<renderingObjects.Count; ++i)
             {
-                r.Draw(renderingObjects[i], _camera, WireframeMode);
+                if (renderingObjects[i].gameObject.activeInHierarchy)
+                {
+                    r.Draw(renderingObjects[i], _camera, WireframeMode);
+                }
             }                                 
 
             r.UpdateFrame();

URasterizer/Assets/URasterizer/Codes/Rasterizer.cs

@@ -168,15 +168,18 @@ namespace URasterizer
                 }
 
                 //backface culling
-                Vector3 v0 = new Vector3(v[0].x, v[0].y, v[0].z);
-                Vector3 v1 = new Vector3(v[1].x, v[1].y, v[1].z);
-                Vector3 v2 = new Vector3(v[2].x, v[2].y, v[2].z);
-                Vector3 e01 = v1 - v0;
-                Vector3 e02 = v2 - v0;
-                Vector3 cross = Vector3.Cross(e01, e02);
-                if(cross.z <= 0)
+                if (!ro.DoubleSideRendering)
                 {
-                    continue;
+                    Vector3 v0 = new Vector3(v[0].x, v[0].y, v[0].z);
+                    Vector3 v1 = new Vector3(v[1].x, v[1].y, v[1].z);
+                    Vector3 v2 = new Vector3(v[2].x, v[2].y, v[2].z);
+                    Vector3 e01 = v1 - v0;
+                    Vector3 e02 = v2 - v0;
+                    Vector3 cross = Vector3.Cross(e01, e02);
+                    if (cross.z <= 0)
+                    {
+                        continue;
+                    }
                 }
 
 
@@ -200,9 +203,9 @@ namespace URasterizer
                 {
                     t.SetPosition(k, v[k]);
                 }
-                t.SetColor(0, Color.red);
-                t.SetColor(1, Color.green);
-                t.SetColor(2, Color.blue);
+                t.SetColor(0, ro.Color0);
+                t.SetColor(1, ro.Color1);
+                t.SetColor(2, ro.Color2);
 
                 //Rasterization
                 if (wireframeMode)

URasterizer/Assets/URasterizer/Codes/RenderingObject.cs

@@ -3,22 +3,22 @@ using UnityEngine;
 
 namespace URasterizer
 {
-    public class RenderingObject
-    {
-        public Transform transform;
+    public class RenderingObject: MonoBehaviour
+    {        
         public Mesh mesh;
+        public bool DoubleSideRendering;
+        public Color Color0 = Color.red;
+        public Color Color1 = Color.green;
+        public Color Color2 = Color.blue;
 
-
-        public RenderingObject(Transform node)
-        {
-            transform = node;
-            mesh = node.GetComponent<MeshFilter>().mesh;
-        }
-
-        public RenderingObject(Mesh mesh)
+        private void Awake()
         {
-            this.mesh = mesh;            
-        }
+            var meshFilter = GetComponent<MeshFilter>();
+            if(meshFilter != null)
+            {
+                mesh = meshFilter.mesh;
+            }
+        }    
 
         // TRS
         public Matrix4x4 GetModelMatrix()

URasterizer/Assets/URasterizer/URasterizerScene.unity

@@ -207,13 +207,14 @@ GameObject:
   - component: {fileID: 256726194}
   - component: {fileID: 256726193}
   - component: {fileID: 256726192}
+  - component: {fileID: 256726196}
   m_Layer: 0
   m_Name: Cube
   m_TagString: Untagged
   m_Icon: {fileID: 0}
   m_NavMeshLayer: 0
   m_StaticEditorFlags: 0
-  m_IsActive: 1
+  m_IsActive: 0
 --- !u!65 &256726192
 BoxCollider:
   m_ObjectHideFlags: 0
@@ -290,6 +291,23 @@ Transform:
   m_Father: {fileID: 0}
   m_RootOrder: 4
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
+--- !u!114 &256726196
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 256726191}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: 275ec1cd091f7d54cb532cf4c552b27a, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
+  mesh: {fileID: 0}
+  DoubleSideRendering: 0
+  Color0: {r: 1, g: 0, b: 0, a: 1}
+  Color1: {r: 0, g: 1, b: 0, a: 1}
+  Color2: {r: 0, g: 0, b: 1, a: 1}
 --- !u!1 &264331597
 GameObject:
   m_ObjectHideFlags: 0
@@ -379,7 +397,6 @@ MonoBehaviour:
   m_EditorClassIdentifier: 
   rawImg: {fileID: 129304943}
   ClearColor: {r: 0, g: 0, b: 0, a: 0.5019608}
-  objNodes: []
   WireframeMode: 0
 --- !u!1 &870169031
 GameObject:
@@ -560,6 +577,7 @@ GameObject:
   - component: {fileID: 963210797}
   - component: {fileID: 963210796}
   - component: {fileID: 963210795}
+  - component: {fileID: 963210799}
   m_Layer: 0
   m_Name: Sphere
   m_TagString: Untagged
@@ -644,6 +662,23 @@ Transform:
   m_Father: {fileID: 0}
   m_RootOrder: 6
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
+--- !u!114 &963210799
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 963210794}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: 275ec1cd091f7d54cb532cf4c552b27a, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
+  mesh: {fileID: 0}
+  DoubleSideRendering: 0
+  Color0: {r: 1, g: 0, b: 0, a: 1}
+  Color1: {r: 0, g: 1, b: 0, a: 1}
+  Color2: {r: 0, g: 0, b: 1, a: 1}
 --- !u!1 &1292409238
 GameObject:
   m_ObjectHideFlags: 0
@@ -735,6 +770,7 @@ GameObject:
   - component: {fileID: 1297680262}
   - component: {fileID: 1297680261}
   - component: {fileID: 1297680260}
+  - component: {fileID: 1297680264}
   m_Layer: 0
   m_Name: Quad
   m_TagString: Untagged
@@ -819,6 +855,23 @@ Transform:
   m_Father: {fileID: 0}
   m_RootOrder: 5
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
+--- !u!114 &1297680264
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 1297680259}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: 275ec1cd091f7d54cb532cf4c552b27a, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
+  mesh: {fileID: 0}
+  DoubleSideRendering: 1
+  Color0: {r: 1, g: 0, b: 0, a: 1}
+  Color1: {r: 0, g: 1, b: 0, a: 1}
+  Color2: {r: 0, g: 0, b: 1, a: 1}
 --- !u!1 &1825649040
 GameObject:
   m_ObjectHideFlags: 0
@@ -831,13 +884,14 @@ GameObject:
   - component: {fileID: 1825649043}
   - component: {fileID: 1825649042}
   - component: {fileID: 1825649041}
+  - component: {fileID: 1825649045}
   m_Layer: 0
   m_Name: Capsule
   m_TagString: Untagged
   m_Icon: {fileID: 0}
   m_NavMeshLayer: 0
   m_StaticEditorFlags: 0
-  m_IsActive: 1
+  m_IsActive: 0
 --- !u!136 &1825649041
 CapsuleCollider:
   m_ObjectHideFlags: 0
@@ -915,6 +969,23 @@ Transform:
   m_Father: {fileID: 963210798}
   m_RootOrder: 0
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
+--- !u!114 &1825649045
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 1825649040}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: 275ec1cd091f7d54cb532cf4c552b27a, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
+  mesh: {fileID: 0}
+  DoubleSideRendering: 0
+  Color0: {r: 1, g: 0, b: 0, a: 1}
+  Color1: {r: 0, g: 1, b: 0, a: 1}
+  Color2: {r: 0, g: 0, b: 1, a: 1}
 --- !u!1 &1899433433
 GameObject:
   m_ObjectHideFlags: 0