104 lines
2.4 KiB
C++
104 lines
2.4 KiB
C++
// first_triangle
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// 该范例主要演示使用NDC坐标系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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#include<hgl/graph/SceneInfo.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 position_data[VERTEX_COUNT][2]=
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{
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{ 0.0, -0.5},
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{-0.5, 0.5},
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{ 0.5, 0.5}
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};
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constexpr float color_data[VERTEX_COUNT][4]=
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{ {1,0,0,1},
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{0,1,0,1},
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{0,0,1,1}
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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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MaterialInstance * material_instance =nullptr;
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Renderable *render_instance =nullptr;
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Pipeline * pipeline =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/VertexColor2DNDC"));
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if(!material_instance)
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return(false);
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// pipeline=db->CreatePipeline(material_instance,sc_render_target,OS_TEXT("res/pipeline/solid2d"));
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pipeline=CreatePipeline(material_instance,InlinePipeline::Solid2D,Prim::Triangles); //等同上一行，为Framework重载，默认使用swapchain的render target
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return pipeline;
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}
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bool InitVBO()
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{
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Primitive *primitive=db->CreatePrimitive(VERTEX_COUNT);
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if(!primitive)return(false);
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if(!primitive->Set(VAN::Position, db->CreateVBO(VF_V2F,VERTEX_COUNT,position_data)))return(false);
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if(!primitive->Set(VAN::Color, db->CreateVBO(VF_V4F,VERTEX_COUNT,color_data)))return(false);
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render_instance=db->CreateRenderable(primitive,material_instance,pipeline);
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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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if(!InitMaterial())
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return(false);
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if(!InitVBO())
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return(false);
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if(!BuildCommandBuffer(render_instance))
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return(false);
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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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VulkanApplicationFramework::Resize(w,h);
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BuildCommandBuffer(render_instance);
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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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