增加SceneTree范例测试节点矩阵变换
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242
example/Vulkan/SceneTree.cpp
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242
example/Vulkan/SceneTree.cpp
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// 5.SceneTree
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// <20><><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>еij<D0B5><C4B3><EFBFBD><EFBFBD>У<EFBFBD>ÿһ<C3BF><D2BB><EFBFBD>ڵ<EFBFBD><DAB5>Ա任<D4B1><E4BBBB><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD>ȷ
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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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#include<hgl/Time.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=256;
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constexpr uint32_t SCREEN_HEIGHT=256;
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class TestApp:public VulkanApplicationFramework
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{
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private:
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double start_time;
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uint swap_chain_count=0;
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SceneDB * db =nullptr;
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SceneNode render_root;
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RenderList render_list;
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Camera camera;
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vulkan::Material * material =nullptr;
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vulkan::DescriptorSets * descriptor_sets =nullptr;
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vulkan::Renderable * ro_cube =nullptr;
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vulkan::Buffer * ubo_world_matrix =nullptr;
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vulkan::Pipeline * pipeline_line =nullptr;
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vulkan::CommandBuffer ** cmd_buf =nullptr;
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public:
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TestApp()
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{
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start_time=GetDoubleTime();
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}
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~TestApp()
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{
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SAFE_CLEAR(db);
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SAFE_CLEAR_OBJECT_ARRAY(cmd_buf,swap_chain_count);
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}
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private:
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void InitCamera()
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{
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camera.type=CameraType::Perspective;
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camera.center.Set(0,0,0,1);
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camera.eye.Set(100,100,100,1);
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camera.width=SCREEN_WIDTH;
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camera.height=SCREEN_HEIGHT;
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camera.Refresh(); //<2F><><EFBFBD>¾<EFBFBD><C2BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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}
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bool InitMaterial()
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{
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material=shader_manage->CreateMaterial(OS_TEXT("OnlyPosition3D.vert.spv"),
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OS_TEXT("FlatColor.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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struct CubeCreateInfo cci;
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ro_cube=CreateCube(db,material,&cci);
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}
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bool InitUBO()
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{
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const VkExtent2D extent=device->GetExtent();
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ubo_world_matrix=db->CreateUBO(sizeof(WorldMatrix),&camera.matrix);
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if(!ubo_world_matrix)
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return(false);
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if(!descriptor_sets->BindUBO(material->GetUBO("world"),*ubo_world_matrix))
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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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constexpr os_char PIPELINE_FILENAME[]=OS_TEXT("2DSolid.pipeline");
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{
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vulkan::PipelineCreater *pipeline_creater=new vulkan::PipelineCreater(device,material,device->GetRenderPass(),device->GetExtent());
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pipeline_creater->SetDepthTest(true);
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pipeline_creater->SetDepthWrite(true);
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pipeline_creater->CloseCullFace();
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pipeline_creater->SetPolygonMode(VK_POLYGON_MODE_LINE);
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pipeline_creater->Set(PRIM_TRIANGLES);
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pipeline_line=pipeline_creater->Create();
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if(!pipeline_line)
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return(false);
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db->Add(pipeline_line);
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delete pipeline_creater;
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}
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return pipeline_line;
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}
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bool InitScene()
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{
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SceneNode *cur_node=&render_root;
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uint size=1;
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uint x=0;
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const Vector3f axis(0,0,1);
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for(uint i=0;i<360;i++)
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{
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render_root.Add(db->CreateRenderableInstance(pipeline_line,descriptor_sets,ro_cube),
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rotate(i/5.0f,axis)*
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translate(i/4.0f,0,0)*
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scale((i+1)/100.0f));
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}
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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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bool InitCommandBuffer()
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{
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cmd_buf=hgl_zero_new<vulkan::CommandBuffer *>(swap_chain_count);
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for(uint i=0;i<swap_chain_count;i++)
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{
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cmd_buf[i]=device->CreateCommandBuffer();
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BuildCommandBuffer(cmd_buf[i],device->GetFramebuffer(i));
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}
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return(true);
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}
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bool BuildCommandBuffer(vulkan::CommandBuffer *cb,vulkan::Framebuffer *fb)
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{
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if (!cb)
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return(false);
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cb->Begin();
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cb->BeginRenderPass(device->GetRenderPass(),fb);
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render_list.Render(cb);
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cb->EndRenderPass();
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cb->End();
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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(!VulkanApplicationFramework::Init(SCREEN_WIDTH,SCREEN_HEIGHT))
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return(false);
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swap_chain_count=device->GetSwapChainImageCount();
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db=new SceneDB(device);
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InitCamera();
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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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if(!InitCommandBuffer())
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return(false);
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return(true);
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}
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void Draw() override
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{
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const uint32_t frame_index=device->GetCurrentFrameIndices();
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vulkan::Framebuffer * fb=device->GetFramebuffer(frame_index);
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vulkan::CommandBuffer * cb=cmd_buf[frame_index];
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Submit(*cb);
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Matrix4f rot=rotate(GetDoubleTime()-start_time,camera.right_vector);
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render_root.RefreshMatrix(&rot);
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render_root.ExpendToList(&render_list);
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BuildCommandBuffer(cb,fb);
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}
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};//class TestApp:public VulkanApplicationFramework
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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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