71 lines
1.8 KiB
C++
71 lines
1.8 KiB
C++
#ifndef HGL_GRAPH_VULKAN_RENDERABLE_INSTANCE_INCLUDE
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#define HGL_GRAPH_VULKAN_RENDERABLE_INSTANCE_INCLUDE
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#include<hgl/graph/vulkan/VKRenderable.h>
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#include<hgl/graph/vulkan/VKPipeline.h>
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#include<hgl/graph/vulkan/VKDescriptorSets.h>
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VK_NAMESPACE_BEGIN
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/**
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* 可渲染对象实例
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*/
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class RenderableInstance
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{
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Pipeline * pipeline;
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DescriptorSets * desc_sets;
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Renderable * render_obj;
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public:
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RenderableInstance(Pipeline *p,DescriptorSets *ds,Renderable *r):pipeline(p),desc_sets(ds),render_obj(r){}
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virtual ~RenderableInstance()
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{
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}
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Pipeline * GetPipeline (){return pipeline;}
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DescriptorSets *GetDescriptorSets (){return desc_sets;}
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Renderable * GetRenderable (){return render_obj;}
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const int Comp(const RenderableInstance *ri)const
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{
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//绘制顺序：
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// ARM Mali GPU : 不透明、AlphaTest、半透明
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// Adreno/NV/AMD: AlphaTest、不透明、半透明
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// PowerVR: 同Adreno/NV/AMD，但不透明部分可以不排序
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if(pipeline->IsAlphaBlend())
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{
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if(!ri->pipeline->IsAlphaBlend())
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return 1;
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}
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else
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{
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if(ri->pipeline->IsAlphaBlend())
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return -1;
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}
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if(pipeline->IsAlphaTest())
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{
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if(!ri->pipeline->IsAlphaTest())
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return 1;
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}
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else
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{
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if(ri->pipeline->IsAlphaTest())
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return -1;
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}
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if(pipeline!=ri->pipeline)
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return pipeline-ri->pipeline;
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if(desc_sets!=ri->desc_sets)
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return desc_sets-ri->desc_sets;
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return render_obj-ri->render_obj;
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}
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CompOperator(const RenderableInstance *,Comp)
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};//class RenderableInstance
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VK_NAMESPACE_END
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#endif//HGL_GRAPH_VULKAN_RENDERABLE_INSTANCE_INCLUDE
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