130 lines
3.0 KiB
C++
130 lines
3.0 KiB
C++
// 8.大气渲染
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// 画一个球，纯粹使用shader计算出颜色
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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/vulkan/VKDatabase.h>
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#include<hgl/graph/RenderableInstance.h>
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#include<hgl/graph/RenderList.h>
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using namespace hgl;
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using namespace hgl::graph;
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constexpr uint32_t SCREEN_WIDTH=128;
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constexpr uint32_t SCREEN_HEIGHT=128;
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struct AtmosphereData
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{
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Vector3f position;
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float intensity;
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float scattering_direction;
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public:
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AtmosphereData()
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{
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position.Set(0,0.1f,-1.0f);
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intensity=22.0f;
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scattering_direction=0.758f;
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}
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};//struct AtmosphereData
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class TestApp:public CameraAppFramework
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{
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private:
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SceneNode render_root;
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RenderList render_list;
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vulkan::MaterialInstance * material_instance =nullptr;
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vulkan::Pipeline * pipeline_solid =nullptr;
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vulkan::Buffer * ubo_atomsphere =nullptr;
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AtmosphereData atomsphere_data;
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vulkan::Renderable * ro_sphere =nullptr;
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private:
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bool InitMaterial()
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{
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material_instance=db->CreateMaterialInstance(OS_TEXT("res/material/Atmosphere")); //不需要优先创建Material，也不需要写扩展名
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if(!material_instance)return(false);
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pipeline_solid=db->CreatePipeline(material_instance,sc_render_target,OS_TEXT("res/pipeline/sky"));
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if(!pipeline_solid)return(false);
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return(true);
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}
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bool InitUBO()
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{
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if(!material_instance->BindUBO("world",GetCameraMatrixBuffer()))
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return(false);
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ubo_atomsphere=db->CreateUBO(sizeof(AtmosphereData),&atomsphere_data);
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if(!ubo_atomsphere)
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return(false);
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if(!material_instance->BindUBO("sun",ubo_atomsphere))
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return(false);
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material_instance->Update();
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return(true);
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}
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bool InitScene()
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{
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ro_sphere=CreateRenderableSphere(db,material_instance->GetMaterial(),128);
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render_root.Add(db->CreateRenderableInstance(pipeline_solid,material_instance,ro_sphere),scale(100));
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render_root.RefreshMatrix();
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render_root.ExpendToList(&render_list);
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return(true);
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}
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public:
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bool Init()
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{
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if(!CameraAppFramework::Init(SCREEN_WIDTH,SCREEN_HEIGHT))
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return(false);
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if(!InitMaterial())
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return(false);
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if(!InitUBO())
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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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void BuildCommandBuffer(uint32_t index) override
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{
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render_root.RefreshMatrix();
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render_list.Clear();
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render_root.ExpendToList(&render_list);
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VulkanApplicationFramework::BuildCommandBuffer(index,&render_list);
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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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TestApp app;
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if(!app.Init())
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return(-1);
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while(app.Run());
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return 0;
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}
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