added PureTexture2D material and test.

example/Vulkan/texture_quad.cpp

@@ -49,8 +49,8 @@ class TestApp:public VulkanApplicationFramework
 {
 private:
 
-//    Texture2D *         texture             =nullptr;
+    Texture2D *         texture             =nullptr;
-//    Sampler *           sampler             =nullptr;
+    Sampler *           sampler             =nullptr;
     MaterialInstance *  material_instance   =nullptr;
     Renderable *        render_obj          =nullptr;
     Pipeline *          pipeline            =nullptr;
@@ -59,12 +59,12 @@ private:
 
     bool InitMaterial()
     {
-        mtl::Material2DCreateConfig cfg(device->GetDeviceAttribute(),"VertexColor2d");
+        mtl::Material2DCreateConfig cfg(device->GetDeviceAttribute(),"PureTexture2d");
 
         cfg.coordinate_system=CoordinateSystem2D::NDC;
         cfg.local_to_world=false;
 
-        AutoDelete<mtl::MaterialCreateInfo> mci=mtl::CreateVertexColor2D(&cfg);
+        AutoDelete<mtl::MaterialCreateInfo> mci=mtl::CreatePureTexture2D(&cfg);
 
         material_instance=db->CreateMaterialInstance(mci);
 
@@ -77,12 +77,16 @@ private:
         if(!pipeline)
             return(false);
 
-        //texture=db->LoadTexture2D(OS_TEXT("res/image/lena.Tex2D"),true);
+        texture=db->LoadTexture2D(OS_TEXT("res/image/lena.Tex2D"),true);
-        //if(!texture)return(false);
+        if(!texture)return(false);
 
-        //sampler=db->CreateSampler();
+        sampler=db->CreateSampler();
 
-        //if(!material_instance->BindImageSampler(DescriptorSetType::Value,"tex",texture,sampler))return(false);
+        if(!material_instance->BindImageSampler(DescriptorSetType::PerMaterial,     ///<描述符合集
+                                                mtl::SamplerName::Color,            ///<采样器名称
+                                                texture,                            ///<纹理
+                                                sampler))                           ///<采样器
+            return(false);
 
         return(true);
     }
@@ -92,7 +96,7 @@ private:
         RenderablePrimitiveCreater rpc(db,VERTEX_COUNT);
 
         if(!rpc.SetVBO(VAN::Position,   VF_V2F, position_data))return(false);
-        if(!rpc.SetVBO(VAN::Color,      VF_V4F, color_data   ))return(false);
+        if(!rpc.SetVBO(VAN::TexCoord,   VF_V2F, tex_coord_data))return(false);
 
         render_obj=rpc.Create(material_instance,pipeline);
         return(render_obj);

inc/hgl/graph/mtl/2d/Material2DCreateConfig.h

@@ -24,7 +24,13 @@ public:
     }
 };//struct Material2DCreateConfig:public MaterialCreateConfig
 
+namespace SamplerName
+{
+    constexpr const char Color[]="TextureColor";
+}
+
 MaterialCreateInfo *CreateVertexColor2D(const Material2DCreateConfig *);
 MaterialCreateInfo *CreatePureColor2D(const Material2DCreateConfig *);
+MaterialCreateInfo *CreatePureTexture2D(const Material2DCreateConfig *);
 STD_MTL_NAMESPACE_END
 #endif//HGL_GRAPH_MTL_2D_CREATE_CONFIG_INCLUDE

src/ShaderGen/2d/PureTexture2D.cpp

@@ -0,0 +1,63 @@
+#include"Std2DMaterial.h"
+#include<hgl/shadergen/MaterialCreateInfo.h>
+#include<hgl/graph/mtl/2d/Material2DCreateConfig.h>
+
+STD_MTL_NAMESPACE_BEGIN
+namespace
+{
+    constexpr const char vs_main[]=R"(
+void main()
+{
+    Output.TexCoord=TexCoord;
+
+    gl_Position=GetPosition2D();
+})";
+
+    //一个shader中输出的所有数据，会被定义在一个名为Output的结构中。所以编写时要用Output.XXXX来使用。
+    //而同时，这个结构在下一个Shader中以Input名称出现，使用时以Input.XXX的形式使用。
+
+    constexpr const char fs_main[]=R"(
+void main()
+{
+    Color=texture(TextureColor,Input.TexCoord);
+})";
+
+    class MaterialPureTexture2D:public Std2DMaterial
+    {
+    public:
+
+        using Std2DMaterial::Std2DMaterial;
+        ~MaterialPureTexture2D()=default;
+
+        bool CustomVertexShader(ShaderCreateInfoVertex *vsc) override
+        {
+            if(!Std2DMaterial::CustomVertexShader(vsc))
+                return(false);
+
+            vsc->AddInput(VAT_VEC2,VAN::TexCoord);
+
+            vsc->AddOutput(VAT_VEC2,"TexCoord");
+
+            vsc->SetMain(vs_main);
+            return(true);
+        }
+
+        bool CustomFragmentShader(ShaderCreateInfoFragment *fsc) override
+        {
+            mci->AddSampler(VK_SHADER_STAGE_FRAGMENT_BIT,DescriptorSetType::PerMaterial,SamplerType::Sampler2D,mtl::SamplerName::Color);
+
+            fsc->AddOutput(VAT_VEC4,"Color");       //Fragment shader的输出等于最终的RT了，所以这个名称其实随便起。
+
+            fsc->SetMain(fs_main);
+            return(true);
+        }
+    };//class MaterialPureTexture2D:public Std2DMaterial
+}//namespace
+
+MaterialCreateInfo *CreatePureTexture2D(const mtl::Material2DCreateConfig *cfg)
+{
+    MaterialPureTexture2D mvc2d(cfg);
+
+    return mvc2d.Create();
+}
+STD_MTL_NAMESPACE_END

src/ShaderGen/CMakeLists.txt

@@ -50,7 +50,8 @@ SET(STD_MTL_2D_SOURCE_FILES	${STD_MTL_2D_HEADER_PATH}/Material2DCreateConfig.h
                             2d/Std2DMaterial.h
                             2d/Std2DMaterial.cpp
                             2d/VertexColor2D.cpp
-                            2d/PureColor2D.cpp)
+                            2d/PureColor2D.cpp
+                            2d/PureTexture2D.cpp)
 
 SET(STD_MTL_SOURCE  ${STD_MTL_HEADER_PATH}/MaterialConfig.h
                     ${STD_MTL_HEADER_PATH}/StdMaterial.h