added third_triangle example

example/Vulkan/CMakeLists.txt

@@ -12,6 +12,7 @@ endmacro()
 
 CreateProject("Basic" 1st_triangle          first_triangle.cpp)
 CreateProject("Basic" 2nd_triangle          second_triangle.cpp)
+CreateProject("Basic" 3rd_triangle          third_triangle.cpp)
 CreateProject("Basic" FragCoord             FragCoordTest.cpp)
 CreateProject("Basic" indices_rect          indices_rect.cpp)
 CreateProject("Basic" FullScreenTriangle    FullScreenTriangle.cpp)
@@ -29,7 +30,7 @@ CreateProject("Tile" DrawText              DrawText.cpp)
 CreateProject("Geometry3D " Geometry3D            Geometry3D.cpp)
 
 CreateProject("Scene" SceneTree             SceneTree.cpp)
-#CreateProject(09.LoadStaticMesh LoadStaticMesh.cpp LoadScene.cpp)
+#CreateProject("Scene" LoadStaticMesh        LoadStaticMesh.cpp LoadScene.cpp)
 CreateProject("Scene" InlineGeometryScene   InlineGeometryScene.cpp)
 
 CreateProject("Scene/Sky" SkyColor              SkyColor.cpp)

example/Vulkan/first_triangle.cpp

@@ -1,5 +1,5 @@
 // first_triangle
-// 该范例主要演示直接绘制一个渐变色的三角形
+// 该范例主要演示使用NDC坐标系直接绘制一个渐变色的三角形
 
 #include"VulkanAppFramework.h"
 #include<hgl/math/Math.h>
@@ -16,9 +16,9 @@ constexpr uint32_t VERTEX_COUNT=3;
 
 constexpr float position_data[VERTEX_COUNT][2]=
 {
-    {SCREEN_WIDTH*0.5,   SCREEN_HEIGHT*0.25},
+    { 0.0, -0.5},
-    {SCREEN_WIDTH*0.75,  SCREEN_HEIGHT*0.75},
+    {-0.5,  0.5},
-    {SCREEN_WIDTH*0.25,  SCREEN_HEIGHT*0.75}
+    { 0.5,  0.5}
 };
 
 constexpr float color_data[VERTEX_COUNT][4]=
@@ -40,13 +40,11 @@ private:
 
     bool InitMaterial()
     {
-        material_instance=db->CreateMaterialInstance(OS_TEXT("res/material/VertexColor2D"));
+        material_instance=db->CreateMaterialInstance(OS_TEXT("res/material/VertexColor2DNDC"));
 
         if(!material_instance)
             return(false);
             
-        BindCameraUBO(material_instance);
-            
 //        pipeline=db->CreatePipeline(material_instance,sc_render_target,OS_TEXT("res/pipeline/solid2d"));
         pipeline=CreatePipeline(material_instance,InlinePipeline::Solid2D,Prim::Triangles);     //等同上一行，为Framework重载，默认使用swapchain的render target
 

example/Vulkan/second_triangle.cpp

@@ -1,9 +1,10 @@
-// second_triangle
+// third_triangle
-// 该范例主要演示使用场景树系统绘制三角形
+// 该范例主要演示使用2D坐系统直接绘制一个渐变色的三角形
 
 #include"VulkanAppFramework.h"
 #include<hgl/math/Math.h>
 #include<hgl/filesystem/FileSystem.h>
+#include<hgl/graph/SceneInfo.h>
 
 using namespace hgl;
 using namespace hgl::graph;
@@ -30,9 +31,6 @@ class TestApp:public VulkanApplicationFramework
 {
 private:
 
-    SceneNode           render_root;
-    RenderList *        render_list         =nullptr;
-
     MaterialInstance *  material_instance   =nullptr;
     RenderableInstance *render_instance     =nullptr;
 
@@ -64,37 +62,24 @@ private:
         if(!render_obj->Set(VAN::Color,     db->CreateVBO(VF_V4F,VERTEX_COUNT,color_data)))return(false);
         
         render_instance=db->CreateRenderableInstance(render_obj,material_instance,pipeline);
-
-        render_root.CreateSubNode(scale(0.5,0.5),render_instance);
-
-        render_root.RefreshMatrix();
-
-        render_list->Expend(GetCameraInfo(),&render_root);
-
         return(true);
     }
 
 public:
 
-    ~TestApp()
-    {
-        SAFE_CLEAR(render_list);
-    }
-
     bool Init()
     {
         if(!VulkanApplicationFramework::Init(SCREEN_WIDTH,SCREEN_HEIGHT))
             return(false);
 
-        render_list=new RenderList(device);
-
         if(!InitMaterial())
             return(false);
 
         if(!InitVBO())
             return(false);
 
-        BuildCommandBuffer(render_list);
+        if(!BuildCommandBuffer(render_instance))
+            return(false);
 
         return(true);
     }
@@ -103,7 +88,7 @@ public:
     {
         VulkanApplicationFramework::Resize(w,h);
 
-        BuildCommandBuffer(render_list);
+        BuildCommandBuffer(render_instance);
     }
 };//class TestApp:public VulkanApplicationFramework
 

example/Vulkan/third_triangle.cpp

@@ -0,0 +1,120 @@
+// second_triangle
+// 该范例主要演示使用场景树系统绘制三角形
+
+#include"VulkanAppFramework.h"
+#include<hgl/math/Math.h>
+#include<hgl/filesystem/FileSystem.h>
+
+using namespace hgl;
+using namespace hgl::graph;
+
+constexpr uint32_t SCREEN_WIDTH=1280;
+constexpr uint32_t SCREEN_HEIGHT=720;
+
+constexpr uint32_t VERTEX_COUNT=3;
+
+constexpr float position_data[VERTEX_COUNT][2]=
+{
+    {SCREEN_WIDTH*0.5,   SCREEN_HEIGHT*0.25},
+    {SCREEN_WIDTH*0.25,  SCREEN_HEIGHT*0.75},
+    {SCREEN_WIDTH*0.75,  SCREEN_HEIGHT*0.75}
+};
+
+constexpr float color_data[VERTEX_COUNT][4]=
+{   {1,0,0,1},
+    {0,1,0,1},
+    {0,0,1,1}
+};
+
+class TestApp:public VulkanApplicationFramework
+{
+private:
+
+    SceneNode           render_root;
+    RenderList *        render_list         =nullptr;
+
+    MaterialInstance *  material_instance   =nullptr;
+    RenderableInstance *render_instance     =nullptr;
+
+    Pipeline *          pipeline            =nullptr;
+
+private:
+
+    bool InitMaterial()
+    {
+        material_instance=db->CreateMaterialInstance(OS_TEXT("res/material/VertexColor2D"));
+
+        if(!material_instance)
+            return(false);
+
+        BindCameraUBO(material_instance);
+            
+//        pipeline=db->CreatePipeline(material_instance,sc_render_target,OS_TEXT("res/pipeline/solid2d"));
+        pipeline=CreatePipeline(material_instance,InlinePipeline::Solid2D,Prim::Triangles);     //等同上一行，为Framework重载，默认使用swapchain的render target
+        
+        return pipeline;
+    }
+
+    bool InitVBO()
+    {
+        Renderable *render_obj=db->CreateRenderable(VERTEX_COUNT);
+        if(!render_obj)return(false);
+
+        if(!render_obj->Set(VAN::Position,  db->CreateVBO(VF_V2F,VERTEX_COUNT,position_data)))return(false);
+        if(!render_obj->Set(VAN::Color,     db->CreateVBO(VF_V4F,VERTEX_COUNT,color_data)))return(false);
+        
+        render_instance=db->CreateRenderableInstance(render_obj,material_instance,pipeline);
+
+        render_root.CreateSubNode(render_instance);
+
+        render_root.RefreshMatrix();
+
+        render_list->Expend(GetCameraInfo(),&render_root);
+
+        return(true);
+    }
+
+public:
+
+    ~TestApp()
+    {
+        SAFE_CLEAR(render_list);
+    }
+
+    bool Init()
+    {
+        if(!VulkanApplicationFramework::Init(SCREEN_WIDTH,SCREEN_HEIGHT))
+            return(false);
+
+        render_list=new RenderList(device);
+
+        if(!InitMaterial())
+            return(false);
+
+        if(!InitVBO())
+            return(false);
+
+        BuildCommandBuffer(render_list);
+
+        return(true);
+    }
+
+    void Resize(int w,int h)override
+    {
+        VulkanApplicationFramework::Resize(w,h);
+
+        BuildCommandBuffer(render_list);
+    }
+};//class TestApp:public VulkanApplicationFramework
+
+int main(int,char **)
+{
+    TestApp app;
+
+    if(!app.Init())
+        return(-1);
+
+    while(app.Run());
+
+    return 0;
+}