151 lines
3.2 KiB
C++
151 lines
3.2 KiB
C++
// 0.triangle
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// 该范例主要演示直接绘制一个渐变色的三角形
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#include"VulkanAppFramework.h"
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#include<hgl/math/Math.h>
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#include<hgl/filesystem/FileSystem.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=1280;
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constexpr uint32_t SCREEN_HEIGHT=720;
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constexpr uint32_t VERTEX_COUNT=3;
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constexpr float vertex_data[VERTEX_COUNT][2]=
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{
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{SCREEN_WIDTH*0.5, SCREEN_HEIGHT*0.25},
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{SCREEN_WIDTH*0.75, SCREEN_HEIGHT*0.75},
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{SCREEN_WIDTH*0.25, SCREEN_HEIGHT*0.75}
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};
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constexpr float color_data[VERTEX_COUNT][3]=
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{ {1,0,0},
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{0,1,0},
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{0,0,1}
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};
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class TestApp:public VulkanApplicationFramework
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{
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private:
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Camera cam;
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vulkan::MaterialInstance * material_instance =nullptr;
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vulkan::Renderable * render_obj =nullptr;
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vulkan::Buffer * ubo_world_matrix =nullptr;
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vulkan::Pipeline * pipeline =nullptr;
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vulkan::VAB * vertex_buffer =nullptr;
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vulkan::VAB * color_buffer =nullptr;
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public:
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~TestApp()
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{
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SAFE_CLEAR(color_buffer);
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SAFE_CLEAR(vertex_buffer);
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}
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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/VertexColor2D"));
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if(!material_instance)
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return(false);
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render_obj=db->CreateRenderable(material_instance,VERTEX_COUNT);
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return(true);
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}
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bool InitUBO()
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{
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const VkExtent2D extent=sc_render_target->GetExtent();
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cam.width=extent.width;
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cam.height=extent.height;
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cam.Refresh();
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ubo_world_matrix=db->CreateUBO(sizeof(WorldMatrix),&cam.matrix);
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if(!ubo_world_matrix)
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return(false);
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material_instance->BindUBO("world",ubo_world_matrix);
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material_instance->Update();
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return(true);
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}
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bool InitVBO()
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{
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vertex_buffer =device->CreateVAB(FMT_RG32F, VERTEX_COUNT,vertex_data);
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color_buffer =device->CreateVAB(FMT_RGB32F, VERTEX_COUNT,color_data);
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if(!render_obj->Set(VAN::Position, vertex_buffer))return(false);
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if(!render_obj->Set(VAN::Color, color_buffer))return(false);
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return(true);
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}
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bool InitPipeline()
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{
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pipeline=db->CreatePipeline(material_instance,sc_render_target,OS_TEXT("res/pipeline/solid2d"));
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return pipeline;
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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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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(!InitVBO())
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return(false);
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if(!InitPipeline())
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return(false);
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BuildCommandBuffer(pipeline,material_instance,render_obj);
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return(true);
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}
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void Resize(int w,int h)override
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{
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cam.width=w;
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cam.height=h;
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cam.Refresh();
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ubo_world_matrix->Write(&cam.matrix);
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BuildCommandBuffer(pipeline,material_instance,render_obj);
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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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