Added a white ring outside gizmo_rotate

CMCore

@@ -1 +1 @@
-Subproject commit 7165984d2270c61f19653a3a256c05786ec478fa
+Subproject commit 7589d62732b68b99de1bec561b1703dd2b043c03

CMSceneGraph

@@ -1 +1 @@
-Subproject commit f11e49363bed867c5fb5584277718983e6b6b697
+Subproject commit 53f0c618567a0e85aca2de4e9e06e08f587c1f7e

example/Gizmo/Gizmo.h

@@ -33,6 +33,8 @@ enum class GizmoShape:uint
 bool InitGizmoResource(RenderResource *);
 void FreeGizmoResource();
 
+Renderable *GetGizmoRenderable(const GizmoShape &shape,const GizmoColor &color);
+
 StaticMesh *GetGizmoMoveStaticMesh();
 StaticMesh *GetGizmoScaleStaticMesh();
 StaticMesh *GetGizmoRotateStaticMesh();

example/Gizmo/GizmoTest.cpp

@@ -1,9 +1,22 @@
 #include"VulkanAppFramework.h"
 #include"Gizmo.h"
+#include<hgl/graph/Ray.h>
 
 using namespace hgl;
 using namespace hgl::graph;
 
+/**
+* 求一个世界坐标在屏幕上的位置
+*/
+Vector2f WorldToScreen(const Vector3f &world_pos,const CameraInfo &ci,const ViewportInfo &vi)
+{
+    Vector4f pos=ci.vp*Vector4f(world_pos,1);
+
+    pos/=pos.w;
+
+    return Vector2f((pos.x+1)*vi.GetViewportWidth()/2,(1-pos.y)*vi.GetViewportHeight()/2);
+}
+
 class TestApp:public SceneAppFramework
 {
     SceneNode root;
@@ -11,6 +24,8 @@ class TestApp:public SceneAppFramework
     StaticMesh *sm_move=nullptr;
     StaticMesh *sm_rotate=nullptr;
 
+    Renderable *face_torus=nullptr;
+
 private:
 
     bool InitGizmo()
@@ -21,6 +36,8 @@ private:
         sm_move     =GetGizmoMoveStaticMesh();
         sm_rotate   =GetGizmoRotateStaticMesh();
 
+        face_torus  =GetGizmoRenderable(GizmoShape::Torus,GizmoColor::White);
+
         return(true);
     }
 
@@ -36,13 +53,6 @@ public:
         
         camera->pos=Vector3f(32,32,32);
         camera_control->SetTarget(Vector3f(0,0,0));
-        camera_control->Refresh();
-
-        root.CreateSubNode(sm_move->GetScene());
-        root.CreateSubNode(sm_rotate->GetScene());
-
-        root.RefreshMatrix();
-        render_list->Expend(&root);
 
         return(true);
     }
@@ -51,6 +61,41 @@ public:
     {
         FreeGizmoResource();
     }
+    
+    void BuildCommandBuffer(uint32 index) override
+    {
+        camera_control->Refresh();
+        
+        const CameraInfo &ci=camera_control->GetCameraInfo();
+        const ViewportInfo &vi=GetViewportInfo();
+
+        const float screen_height=vi.GetViewportHeight();
+
+        root.Clear();
+
+        const Vector3f GizmoPosition(0,0,0);
+
+        const Vector4f pos=ci.Project(GizmoPosition);
+
+        root.SetLocalMatrix(scale(pos.w*16.0f/screen_height));
+
+        root.CreateSubNode(sm_move->GetScene());
+        root.CreateSubNode(sm_rotate->GetScene());
+
+        {
+            Transform tm;
+
+            tm.SetRotation(CalculateFacingRotationQuat(GizmoPosition,ci.view,AxisVector::X));
+            tm.SetScale(15);
+
+            root.CreateSubNode(tm,face_torus);
+        }
+
+        root.RefreshMatrix();
+        render_list->Expend(&root);
+
+        SceneAppFramework::BuildCommandBuffer(index);
+    }
 };//class TestApp:public SceneAppFramework
 
 int main(int,char **)