added MIData at Material

inc/hgl/graph/VKMaterialInstance.h

@@ -5,48 +5,53 @@
 
 VK_NAMESPACE_BEGIN
 
-/*
-    layout(location=0) in vec4 Position;
-    layout(location=1) in vec3 Normal;
- 
-    layout(location=?) in uint MaterialID
-
-    #define MI_MAX_COUNT ???                //该值由引擎根据 UBORange/sizeof(MaterialInstance) 计算出来
-
-    struct MaterialInstance                 //这部分数据，即为材质实例的具体数据，每一个材质实例类负责提供具体数据。由RenderList合并成一整个UBO
-    {
-        vec4 BaseColor;
-        vec4 Emissive;
-        vec4 ARM;
-    };
-
-    layout(set=?,binding=?) uniform Material
-    {
-        MaterialInstance mi[MI_MAX_COUNT]
-    }mtl;
-
-    void main()
-    {
-        MaterialInstance mi=mtl.mi[(MaterialID>=MI_MAX_COUNT)?:0:MaterialID];   //如果超出范围则使用0号材质实例数据
-
-        vec4 BaseColor  =mi.BaseColor;
-        vec4 Emissive   =mi.Emissive;
-
-        float AO        =mi.ARM.x;
-        float Roughness =mi.ARM.y;
-        float Metallic  =mi.ARM.z;
-
+/**
+* <summary>
+* 
+*    layout(location=?) in uint MaterialID
+*
+*    #define MI_MAX_COUNT ???                //该值由引擎根据 UBORange/sizeof(MaterialInstance) 计算出来
+*
+*    struct MaterialInstance                 //这部分数据，即为材质实例的具体数据，每一个材质实例类负责提供具体数据。由RenderList合并成一整个UBO
+*    {                                       //该类数据，由DescriptorSetType为PerMaterial的参数构成
+*        vec4 BaseColor;
+*        vec4 Emissive;
+*        vec4 ARM;
+*    };
+*
+*    layout(set=?,binding=?) uniform Material
+*    {
+*        MaterialInstance mi[MI_MAX_COUNT]
+*    }mtl;
+*
+*    void main()
+*    {
+*        MaterialInstance mi=mtl.mi[(MaterialID>=MI_MAX_COUNT)?:0:MaterialID];   //如果超出范围则使用0号材质实例数据
+*
+*        vec4 BaseColor  =mi.BaseColor;
+*        vec4 Emissive   =mi.Emissive;
+*
+*        float AO        =mi.ARM.x;
+*        float Roughness =mi.ARM.y;
+*        float Metallic  =mi.ARM.z;
+*
+* </summary>
 */
 
 /**
-* 材质实例类
+* 材质实例类<br>
+* 材质实例类本质只是提供一个数据区，供RenderList合并成一个大UBO。
 */
 class MaterialInstance
 {
+protected:
+
     Material *material;
 
     VIL *vil;
 
+    uint8 mi_id;        //材质实例ID
+
 private:
 
     friend class GPUDevice;
@@ -59,6 +64,14 @@ public:
 
     Material *GetMaterial(){return material;}
 
+    const uint8_t GetID()const{return mi_id;}                                                       ///<获取材质实例ID
+
+    template<typename T>
+    T *GetData(){return material->GetMIData<T>(mi_id);}                                             ///<获取材质实例数据
+
+    template<typename T>
+    bool WriteData(const T *data){return material->WriteMIData(mi_id,data);}                        ///<写入材质实例数据
+
     const VIL *GetVIL()const{return vil;}
     MaterialParameters *GetMP(const DescriptorSetType &type){return material->GetMP(type);}