140 lines
3.3 KiB
C++
140 lines
3.3 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/VKRenderResource.h>
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#include<hgl/graph/VKRenderable.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=512;
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constexpr uint32_t SCREEN_HEIGHT=512;
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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=Vector3f(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=nullptr;
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MaterialInstance * material_instance =nullptr;
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Pipeline * pipeline_solid =nullptr;
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DeviceBuffer * ubo_atomsphere =nullptr;
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AtmosphereData atomsphere_data;
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Primitive * 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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pipeline_solid=CreatePipeline(material_instance,InlinePipeline::Sky,Prim::Triangles); //等同上一行，为Framework重载，默认使用swapchain的render target
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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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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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{
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MaterialParameters *mp=material_instance->GetMP(DescriptorSetType::Value);
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if(!mp)return(false);
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if(!mp->BindUBO("sun",ubo_atomsphere))
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return(false);
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mp->Update();
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}
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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=inline_geometry::CreateSphere(db,material_instance->GetVIL(),128);
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render_root.CreateSubNode(scale(100),db->CreateRenderable(ro_sphere,material_instance,pipeline_solid));
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render_root.RefreshMatrix();
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render_list->Expend(GetCameraInfo(),&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(render_list);
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}
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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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render_list=new RenderList(device);
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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->Expend(GetCameraInfo(),&render_root);
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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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