vertex shader

stat

URasterizer/Assets/Samples/Scenes/URasterizerScene.unity

@@ -316,6 +316,7 @@ GameObject:
   - component: {fileID: 264331600}
   - component: {fileID: 264331599}
   - component: {fileID: 264331601}
+  - component: {fileID: 264331598}
   m_Layer: 0
   m_Name: Main Camera
   m_TagString: MainCamera
@@ -323,6 +324,20 @@ GameObject:
   m_NavMeshLayer: 0
   m_StaticEditorFlags: 0
   m_IsActive: 1
+--- !u!114 &264331598
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 264331597}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: 6521a9dfaf0764545a74885d9b664e06, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
+  TrianglesStat: {fileID: 1899433435}
+  VerticesStat: {fileID: 1292409240}
 --- !u!20 &264331599
 Camera:
   m_ObjectHideFlags: 0
@@ -354,7 +369,7 @@ Camera:
   m_Depth: -1
   m_CullingMask:
     serializedVersion: 2
-    m_Bits: 4294967295
+    m_Bits: 0
   m_RenderingPath: -1
   m_TargetTexture: {fileID: 0}
   m_TargetDisplay: 0
@@ -667,7 +682,7 @@ Animator:
   m_PrefabInstance: {fileID: 0}
   m_PrefabAsset: {fileID: 0}
   m_GameObject: {fileID: 963210794}
-  m_Enabled: 1
+  m_Enabled: 0
   m_Avatar: {fileID: 0}
   m_Controller: {fileID: 9100000, guid: a5d59b3801cddbb458d4c0acecdf77ed, type: 2}
   m_CullingMode: 0
@@ -678,6 +693,85 @@ Animator:
   m_HasTransformHierarchy: 1
   m_AllowConstantClipSamplingOptimization: 1
   m_KeepAnimatorControllerStateOnDisable: 0
+--- !u!1 &1145256121
+GameObject:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  serializedVersion: 6
+  m_Component:
+  - component: {fileID: 1145256122}
+  - component: {fileID: 1145256124}
+  - component: {fileID: 1145256123}
+  m_Layer: 5
+  m_Name: Text
+  m_TagString: Untagged
+  m_Icon: {fileID: 0}
+  m_NavMeshLayer: 0
+  m_StaticEditorFlags: 0
+  m_IsActive: 1
+--- !u!224 &1145256122
+RectTransform:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 1145256121}
+  m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
+  m_LocalPosition: {x: 0, y: 0, z: 0}
+  m_LocalScale: {x: 1, y: 1, z: 1}
+  m_Children: []
+  m_Father: {fileID: 1958761793}
+  m_RootOrder: 0
+  m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
+  m_AnchorMin: {x: 0, y: 0}
+  m_AnchorMax: {x: 0, y: 0}
+  m_AnchoredPosition: {x: 0, y: 0}
+  m_SizeDelta: {x: 0, y: 30}
+  m_Pivot: {x: 0.5, y: 0.5}
+--- !u!114 &1145256123
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 1145256121}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: 5f7201a12d95ffc409449d95f23cf332, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
+  m_Material: {fileID: 0}
+  m_Color: {r: 0, g: 0.9811321, b: 0.030918626, a: 1}
+  m_RaycastTarget: 1
+  m_RaycastPadding: {x: 0, y: 0, z: 0, w: 0}
+  m_Maskable: 1
+  m_OnCullStateChanged:
+    m_PersistentCalls:
+      m_Calls: []
+  m_FontData:
+    m_Font: {fileID: 10102, guid: 0000000000000000e000000000000000, type: 0}
+    m_FontSize: 22
+    m_FontStyle: 0
+    m_BestFit: 0
+    m_MinSize: 2
+    m_MaxSize: 40
+    m_Alignment: 4
+    m_AlignByGeometry: 0
+    m_RichText: 1
+    m_HorizontalOverflow: 0
+    m_VerticalOverflow: 0
+    m_LineSpacing: 1
+  m_Text: URasterizer
+--- !u!222 &1145256124
+CanvasRenderer:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 1145256121}
+  m_CullTransparentMesh: 1
 --- !u!1 &1292409238
 GameObject:
   m_ObjectHideFlags: 0
@@ -708,12 +802,12 @@ RectTransform:
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children: []
   m_Father: {fileID: 1958761793}
-  m_RootOrder: 1
+  m_RootOrder: 2
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 0, y: 0}
   m_AnchoredPosition: {x: 0, y: 0}
-  m_SizeDelta: {x: 160, y: 26.1044}
+  m_SizeDelta: {x: 0, y: 26.1044}
   m_Pivot: {x: 0.5, y: 0.5}
 --- !u!114 &1292409240
 MonoBehaviour:
@@ -739,10 +833,10 @@ MonoBehaviour:
     m_Font: {fileID: 10102, guid: 0000000000000000e000000000000000, type: 0}
     m_FontSize: 20
     m_FontStyle: 0
-    m_BestFit: 0
-    m_MinSize: 2
-    m_MaxSize: 40
-    m_Alignment: 0
+    m_BestFit: 1
+    m_MinSize: 10
+    m_MaxSize: 20
+    m_Alignment: 3
     m_AlignByGeometry: 0
     m_RichText: 1
     m_HorizontalOverflow: 0
@@ -964,7 +1058,7 @@ Transform:
   m_PrefabAsset: {fileID: 0}
   m_GameObject: {fileID: 1825649040}
   m_LocalRotation: {x: -0, y: -0, z: -0, w: 1}
-  m_LocalPosition: {x: 2, y: 0, z: 0}
+  m_LocalPosition: {x: -2.43, y: 0, z: 0}
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children: []
   m_Father: {fileID: 963210798}
@@ -1014,12 +1108,12 @@ RectTransform:
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children: []
   m_Father: {fileID: 1958761793}
-  m_RootOrder: 0
+  m_RootOrder: 1
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 0, y: 0}
   m_AnchoredPosition: {x: 0, y: 0}
-  m_SizeDelta: {x: 160, y: 30}
+  m_SizeDelta: {x: 0, y: 30}
   m_Pivot: {x: 0.5, y: 0.5}
 --- !u!114 &1899433435
 MonoBehaviour:
@@ -1045,10 +1139,10 @@ MonoBehaviour:
     m_Font: {fileID: 10102, guid: 0000000000000000e000000000000000, type: 0}
     m_FontSize: 20
     m_FontStyle: 0
-    m_BestFit: 0
-    m_MinSize: 2
-    m_MaxSize: 40
-    m_Alignment: 0
+    m_BestFit: 1
+    m_MinSize: 10
+    m_MaxSize: 20
+    m_Alignment: 3
     m_AlignByGeometry: 0
     m_RichText: 1
     m_HorizontalOverflow: 0
@@ -1186,6 +1280,7 @@ RectTransform:
   m_LocalPosition: {x: 0, y: 0, z: 0}
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children:
+  - {fileID: 1145256122}
   - {fileID: 1899433434}
   - {fileID: 1292409239}
   m_Father: {fileID: 900208196}
@@ -1193,8 +1288,8 @@ RectTransform:
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 1, y: 1}
   m_AnchorMax: {x: 1, y: 1}
-  m_AnchoredPosition: {x: -119.32251, y: -73.23816}
-  m_SizeDelta: {x: 203.4912, y: 115.5237}
+  m_AnchoredPosition: {x: -129.33313, y: -69.1431}
+  m_SizeDelta: {x: 223.5125, y: 107.3335}
   m_Pivot: {x: 0.5, y: 0.5}
 --- !u!114 &1958761794
 MonoBehaviour:
@@ -1217,7 +1312,7 @@ MonoBehaviour:
   m_Spacing: 5
   m_ChildForceExpandWidth: 1
   m_ChildForceExpandHeight: 0
-  m_ChildControlWidth: 0
+  m_ChildControlWidth: 1
   m_ChildControlHeight: 0
   m_ChildScaleWidth: 0
   m_ChildScaleHeight: 0

URasterizer/Assets/URasterizer/Codes/CameraRenderer.cs

@@ -65,7 +65,12 @@ namespace URasterizer
             Debug.Log($"screen size: {w}x{h}");
 
             _rasterizer = new Rasterizer(w, h, _config);
-            rawImg.texture = _rasterizer.texture;            
+            rawImg.texture = _rasterizer.texture;
+
+            var statPanel = this.GetComponent<StatsPanel>();
+            if (statPanel != null) {
+                _rasterizer.StatDelegate += statPanel.StatDelegate;
+            }
         }
 
 

URasterizer/Assets/URasterizer/Codes/Rasterizer.cs

@@ -10,6 +10,8 @@ namespace URasterizer
         Depth = 2
     }
 
+    public delegate void OnRasterizerStatUpdate(int verticesAll, int trianglesAll, int trianglesRendered);
+
     public class Rasterizer
     {
         int _width;
@@ -45,8 +47,11 @@ namespace URasterizer
         public Texture2D texture;        
 
         //Stats
-        public int Stats_Triangles;
-        public int Stats_Vertices;
+        int _trianglesAll, _trianglesRendered;
+        int _verticesAll;
+
+        public OnRasterizerStatUpdate StatDelegate;
+
 
         public Rasterizer(int w, int h, RenderingConfig config)
         {
@@ -104,6 +109,9 @@ namespace URasterizer
             {
                 FillArray(depth_buf, float.MaxValue);
             }
+
+            _trianglesAll = _trianglesRendered = 0;
+            _verticesAll = 0;
         }
 
         public void SetupViewProjectionMatrix(Camera camera)
@@ -135,28 +143,37 @@ namespace URasterizer
 
             Matrix4x4 mvp = _matProjection * _matView * _matModel;
 
+            _verticesAll += mesh.vertexCount;
+            _trianglesAll += mesh.triangles.Length / 3;
+
+            //Unity模型本地坐标系也是左手系，需要转成我们使用的右手系
+            //1. z轴反转
+            //2. 三角形顶点环绕方向从顺时针改成逆时针
+
+
+            //vertex shader
+            Vector4[] csVertices = new Vector4[mesh.vertexCount]; //clip space vertices
+            for(int i=0; i<mesh.vertexCount; ++i)
+            {                
+                var vert = mesh.vertices[i];                
+                csVertices[i] = mvp * new Vector4(vert.x, vert.y, -vert.z, 1); //注意这儿反转了z坐标
+            }
+
 
             var indices = mesh.triangles;
             for(int i=0; i< indices.Length; i+=3)
-            {
-                //Unity模型本地坐标系也是左手系，需要转成我们使用的右手系
-                //1. z轴反转
-                //2. 三角形顶点环绕方向从顺时针改成逆时针
-
+            {                
                 //注意这儿对调了v0和v1的索引，因为原来的 0,1,2是顺时针的，对调后是 1,0,2是逆时针的
                 //Unity Quard模型的两个三角形索引分别是 0,3,1,3,0,2 转换后为 3,0,1,0,3,2
                 int idx0 = indices[i+1];
                 int idx1 = indices[i]; 
                 int idx2 = indices[i+2];
-                                
-                //vertex shader
-
-                //world to clip space
+                             
                 Vector4[] v =
                 {
-                    mvp * new Vector4(mesh.vertices[idx0].x, mesh.vertices[idx0].y, -mesh.vertices[idx0].z, 1), //注意这儿反转了z坐标
-                    mvp * new Vector4(mesh.vertices[idx1].x, mesh.vertices[idx1].y, -mesh.vertices[idx1].z, 1),
-                    mvp * new Vector4(mesh.vertices[idx2].x, mesh.vertices[idx2].y, -mesh.vertices[idx2].z, 1),
+                    csVertices[idx0],
+                    csVertices[idx1],
+                    csVertices[idx2]                   
                 };
                 
 
@@ -189,6 +206,8 @@ namespace URasterizer
                     }
                 }
 
+                ++_trianglesRendered;
+
 
                 //NDC to screen space, viewport transform
                 for (int k = 0; k < 3; k++)
@@ -517,6 +536,11 @@ namespace URasterizer
         {
             texture.SetPixels(frame_buf);
             texture.Apply();
+
+            if (StatDelegate != null)
+            {
+                StatDelegate(_verticesAll, _trianglesAll, _trianglesRendered);
+            }
         }
 
 

URasterizer/Assets/URasterizer/Codes/StatsPanel.cs

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
+using UnityEngine.UI;
 
 public class StatsPanel : MonoBehaviour
 {
-    // Start is called before the first frame update
-    void Start()
-    {
-        
-    }
+    public Text TrianglesStat;
+    public Text VerticesStat;
 
-    // Update is called once per frame
-    void Update()
+    public void StatDelegate(int vertices, int triangles, int trianglesRendered)
     {
-        
+        TrianglesStat.text = $"Triangles: {trianglesRendered} / {triangles}";
+        VerticesStat.text = $"Vertices: {vertices}";
     }
 }