updated PureColor2D material codes

CMCore

@@ -1 +1 @@
-Subproject commit fbe4815c748346fae03d08bed7d228f45f02ac79
+Subproject commit 462f0792835cc5022771a3594e312efa365a5fae

CMSceneGraph

@@ -1 +1 @@
-Subproject commit f5cfe02eed045d84ee03a9e32d62029c71fec530
+Subproject commit 95ed7ae08b3c50055d2a162e22585c7c1cefc763

example/Vulkan/CMakeLists.txt

@@ -13,38 +13,40 @@ endmacro()
 CreateProject("Basic" 1st_draw_triangle_in_NDC          first_triangle.cpp)
 CreateProject("Basic" 2nd_draw_triangle_use_UBO         second_triangle.cpp)
 CreateProject("Basic" 3rd_draw_triangle_use_RenderList  third_triangle.cpp)
-CreateProject("Basic" FragCoord             FragCoordTest.cpp)
-CreateProject("Basic" indices_rect          indices_rect.cpp)
-CreateProject("Basic" FullScreenTriangle    FullScreenTriangle.cpp)
-CreateProject("Basic" InstanceTriangle      InstanceTriangle.cpp)
+CreateProject("Basic" 4th_draw_triangle_use_MaterialInstance  fourth_triangle.cpp)
+
+#CreateProject("Basic" FragCoord             FragCoordTest.cpp)
+#CreateProject("Basic" indices_rect          indices_rect.cpp)
+#CreateProject("Basic" FullScreenTriangle    FullScreenTriangle.cpp)
+#CreateProject("Basic" InstanceTriangle      InstanceTriangle.cpp)
 
 CreateProject("Texture" TextureFormat       TextureFormat.cpp)
-CreateProject("Texture" texture_rect        texture_rect.cpp)
+#CreateProject("Texture" texture_rect        texture_rect.cpp)
 #CreateProject("Texture" HQFilterTexture HQFilterTexture.cpp)
 #CreateProject(06.Geometry2D Geometry2D.cpp)
 
-CreateProject("Geometry2D" RectanglePrimitive    RectanglePrimitive.cpp)
-CreateProject("Tile" DrawTile              DrawTile.cpp)
-CreateProject("Tile" DrawText              DrawText.cpp)
+#CreateProject("Geometry2D" RectanglePrimitive    RectanglePrimitive.cpp)
+#CreateProject("Tile" DrawTile              DrawTile.cpp)
+#CreateProject("Tile" DrawText              DrawText.cpp)
 
-CreateProject("Geometry3D " Geometry3D            Geometry3D.cpp)
+#CreateProject("Geometry3D " Geometry3D            Geometry3D.cpp)
 
-CreateProject("Scene" SceneTree             SceneTree.cpp)
+#CreateProject("Scene" SceneTree             SceneTree.cpp)
 #CreateProject("Scene" LoadStaticMesh        LoadStaticMesh.cpp LoadScene.cpp)
-CreateProject("Scene" InlineGeometryScene   InlineGeometryScene.cpp)
+#CreateProject("Scene" InlineGeometryScene   InlineGeometryScene.cpp)
 
-CreateProject("Scene/Sky" SkyColor              SkyColor.cpp)
-CreateProject("Scene/Sky" Atmosphere            Atmosphere.cpp)
+#CreateProject("Scene/Sky" SkyColor              SkyColor.cpp)
+#CreateProject("Scene/Sky" Atmosphere            Atmosphere.cpp)
 
-CreateProject("Advanced Rendering" OffscreenRender       OffscreenRender.cpp)
+#CreateProject("Advanced Rendering" OffscreenRender       OffscreenRender.cpp)
 
 #CreateProject(12.PBRBasic PBRBasic.cpp)
 #CreateProject(12.Deferred Deferred.cpp)
-CreateProject("Advanced Rendering" DeferredRender        DeferredRender.cpp)
+#CreateProject("Advanced Rendering" DeferredRender        DeferredRender.cpp)
 #CreateProject(14.AutoMaterial auto_material.cpp)
 
-CreateProject("Texture" Cubemap               Cubemap.cpp)
-CreateProject("Texture" EquirectangularMap    EquirectangularMap.cpp)
-CreateProject("Picking" RayPicking            RayPicking.cpp)
+#CreateProject("Texture" Cubemap               Cubemap.cpp)
+#CreateProject("Texture" EquirectangularMap    EquirectangularMap.cpp)
+#CreateProject("Picking" RayPicking            RayPicking.cpp)
 
-CreateProject("Landscape" TerrainSimple         TerrainSimple.cpp)
+#CreateProject("Landscape" TerrainSimple         TerrainSimple.cpp)

example/Vulkan/second_triangle.cpp

@@ -1,5 +1,5 @@
-// third_triangle
-// 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
+// second_triangle
+// 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,使用UBO传递Viewport信息
 
 #include"VulkanAppFramework.h"
 #include<hgl/math/Math.h>

example/Vulkan/third_triangle.cpp

@@ -1,4 +1,4 @@
-// second_triangle
+// third_triangle
 // 该范例主要演示使用场景树系统绘制三角形
 
 #include"VulkanAppFramework.h"

inc/hgl/graph/mtl/2d/Material2DConfig.h

@@ -25,5 +25,6 @@ public:
 };//struct Material2DConfig:public MaterialConfig
 
 MaterialCreateInfo *CreateVertexColor2D(const Material2DConfig *);
+MaterialCreateInfo *CreatePureColor2D(const Material2DConfig *);
 STD_MTL_NAMESPACE_END
 #endif//HGL_GRAPH_MTL_2D_CONFIG_INCLUDE

src/ShaderGen/2d/PureColor2D.cpp

@@ -1,9 +1,13 @@
 #include"Std2DMaterial.h"
 #include<hgl/shadergen/MaterialCreateInfo.h>
+#include<hgl/math/Vector.h>
 
 STD_MTL_NAMESPACE_BEGIN
 namespace
 {
+    constexpr const char mi_codes[]="vec4 Color;";          //材质实例代码
+    constexpr const uint32_t mi_bytes=sizeof(Vector4f);     //材质实例数据大小
+
     constexpr const char vs_main[]=R"(
 void main()
 {
@@ -13,20 +17,26 @@ void main()
 })";
 
     constexpr const char fs_main[]=R"(
-
-
 void main()
 {
     MaterialInstance mi=GetMI();
 
     Color=mi.Color;
-})";
+})";// ^       ^
+    // |       |
+    // |       +--ps:这里的mi.Color是材质实例中的数据，MaterialInstance结构对应上面C++代码中的mi_codes
+    // +--ps:这里的Color就是最终的RT
 
     class MaterialPureColor2D:public Std2DMaterial
     {
     public:
 
-        using Std2DMaterial::Std2DMaterial;
+        MaterialPureColor2D(const Material2DConfig *c):Std2DMaterial(c)
+        {
+            mci->SetMaterialInstance(   mi_codes,                       //材质实例glsl代码
+                                        mi_bytes,                       //材质实例数据大小
+                                        VK_SHADER_STAGE_FRAGMENT_BIT);  //只在Fragment Shader中使用材质实例最终数据
+        }
         ~MaterialPureColor2D()=default;
 
         bool CreateVertexShader(ShaderCreateInfoVertex *vsc) override

src/ShaderGen/2d/VertexColor2D.cpp

@@ -19,7 +19,10 @@ void main()
 void main()
 {
     Color=Input.Color;
-})";
+})";// ^       ^
+    // |       |
+    // |       +--ps:这里的Input.Color就是上一个Shader中的Output.Color
+    // +--ps:这里的Color就是最终的RT
 
     class MaterialVertexColor2D:public Std2DMaterial
     {