132 lines
3.0 KiB
C++
132 lines
3.0 KiB
C++
// Billboard2D
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// 用于实现在3D场景中显示固定象素尺寸的2D内容，比如显示在3D场景中的血条、头顶名字等。
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#include"VulkanAppFramework.h"
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#include<hgl/filesystem/FileSystem.h>
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#include<hgl/graph/InlineGeometry.h>
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#include<hgl/graph/VKRenderResource.h>
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#include<hgl/graph/RenderList.h>
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#include<hgl/graph/Camera.h>
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#include<hgl/graph/mtl/Material3DCreateConfig.h>
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using namespace hgl;
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using namespace hgl::graph;
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class TestApp:public SceneAppFramework
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{
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private:
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Material * material =nullptr;
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Pipeline * pipeline =nullptr;
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Primitive * prim_plane_grid =nullptr;
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MaterialInstance * material_instance[3]{};
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private:
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bool InitMDP()
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{
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mtl::Material3DCreateConfig cfg(device->GetDeviceAttribute(),"VertexLuminance3D",Prim::Lines);
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cfg.local_to_world=true;
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cfg.position_format=VAT_VEC2;
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material=db->LoadMaterial("Std3D/VertexLum3D",&cfg);
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if(!material)return(false);
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Color4f GridColor;
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COLOR ce=COLOR::BlenderAxisRed;
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for(uint i=0;i<3;i++)
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{
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GridColor=GetColor4f(ce,1.0);
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material_instance[i]=db->CreateMaterialInstance(material,nullptr,&GridColor);
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ce=COLOR((int)ce+1);
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}
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pipeline=CreatePipeline(material,InlinePipeline::Solid3D,Prim::Lines);
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return pipeline;
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}
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bool CreateRenderObject()
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{
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using namespace inline_geometry;
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struct PlaneGridCreateInfo pgci;
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pgci.grid_size.Set(32,32);
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pgci.sub_count.Set(8,8);
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pgci.lum=0.75;
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pgci.sub_lum=1.0;
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PrimitiveCreater pc(device,material->GetDefaultVIL());
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prim_plane_grid=CreatePlaneGrid(&pc,&pgci);
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return prim_plane_grid;
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}
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Renderable *Add(MaterialInstance *mi,const Matrix4f &mat)
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{
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Renderable *ri=db->CreateRenderable(prim_plane_grid,mi,pipeline);
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if(!ri)
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return(nullptr);
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render_root.CreateSubNode(mat,ri);
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return ri;
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}
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bool InitScene()
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{
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Add(material_instance[0],Matrix4f(1.0f));
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Add(material_instance[1],rotate(HGL_RAD_90,0,1,0));
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Add(material_instance[2],rotate(HGL_RAD_90,1,0,0));
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camera->pos=Vector3f(32,32,32);
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camera_control->SetTarget(Vector3f(0,0,0));
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camera_control->Refresh();
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// camera_control->SetReserveDirection(true,true); //反转x,y
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render_root.RefreshMatrix();
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render_list->Expend(&render_root);
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return(true);
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}
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public:
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~TestApp()
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{
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SAFE_CLEAR(prim_plane_grid);
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}
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bool Init(uint width,uint height) override
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{
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if(!SceneAppFramework::Init(width,height))
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return(false);
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if(!InitMDP())
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return(false);
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if(!CreateRenderObject())
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return(false);
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if(!InitScene())
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return(false);
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return(true);
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}
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};//class TestApp:public CameraAppFramework
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int main(int,char **)
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{
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return RunApp<TestApp>(1280,720);
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}
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