161 lines
3.8 KiB
C++
161 lines
3.8 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/SceneDB.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 AtomsphereData
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{
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alignas(16) Vector3f position;
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float intensity;
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float scattering_direction;
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};//
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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::Material * material =nullptr;
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vulkan::DescriptorSets * descriptor_sets =nullptr;
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vulkan::Renderable *ro_sphere;
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vulkan::Pipeline *pipeline_solid =nullptr;
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vulkan::Buffer * ubo_atomsphere =nullptr;
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AtomsphereData atomsphere_data;
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private:
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bool InitMaterial()
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{
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material=shader_manage->CreateMaterial(OS_TEXT("Atomsphere.vert.spv"),
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OS_TEXT("Atomsphere.frag.spv"));
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if(!material)
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return(false);
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descriptor_sets=material->CreateDescriptorSets();
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db->Add(material);
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db->Add(descriptor_sets);
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return(true);
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}
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void CreateRenderObject()
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{
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ro_sphere=CreateRenderableSphere(db,material,128);
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}
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bool InitAtomsphereUBO(vulkan::DescriptorSets *desc_set,uint bindpoint)
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{
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atomsphere_data.position.Set(0,0.1f,-1.0f);
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atomsphere_data.intensity=22.0f;
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atomsphere_data.scattering_direction=0.758f;
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ubo_atomsphere=db->CreateUBO(sizeof(AtomsphereData),&atomsphere_data);
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if(!ubo_atomsphere)
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return(false);
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return desc_set->BindUBO(bindpoint,*ubo_atomsphere);
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}
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bool InitUBO()
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{
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if(!InitCameraUBO(descriptor_sets,material->GetUBO("world")))
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return(false);
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if(!InitAtomsphereUBO(descriptor_sets,material->GetUBO("sun")))
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return(false);
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descriptor_sets->Update();
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return(true);
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}
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bool InitPipeline()
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{
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vulkan::PipelineCreater *pipeline_creater=new vulkan::PipelineCreater(device,material,device->GetMainRenderPass(),device->GetExtent());
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pipeline_creater->SetDepthTest(true);
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pipeline_creater->SetDepthWrite(true);
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pipeline_creater->SetCullMode(VK_CULL_MODE_NONE);
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pipeline_creater->Set(PRIM_TRIANGLES);
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pipeline_solid=pipeline_creater->Create();
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if(!pipeline_solid)
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return(false);
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db->Add(pipeline_solid);
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delete pipeline_creater;
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return(true);
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}
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bool InitScene()
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{
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render_root.Add(db->CreateRenderableInstance(pipeline_solid,descriptor_sets,ro_sphere),scale(1000));
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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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CreateRenderObject();
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if(!InitUBO())
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return(false);
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if(!InitPipeline())
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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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