Pipeline创建增加对多ColorAttachment支持

inc/hgl/graph/vulkan/VKRenderPass.h

@@ -42,6 +42,7 @@ public:
 
     operator VkRenderPass(){return render_pass;}
 
+    const uint              GetColorCount()const{return color_formats.GetCount();}
     const List<VkFormat> &  GetColorFormat()const{return color_formats;}
     const VkFormat          GetDepthFormat()const{return depth_format;}
 };//class RenderPass

src/RenderDevice/Vulkan/VKPipeline.cpp

@@ -145,7 +145,7 @@ PipelineCreater::PipelineCreater(Device *dev,const Material *material,RenderPass
     cba.srcAlphaBlendFactor = VK_BLEND_FACTOR_ZERO;
     cba.dstAlphaBlendFactor = VK_BLEND_FACTOR_ZERO;
 
-    colorBlendAttachments.Add(cba);
+    colorBlendAttachments.Add(cba,rp->GetColorCount());     //这个需要和subpass中的color attachment数量相等，所以添加多份
 
     alpha_blend=false;