ULRE/example/Basic/auto_instance.cpp
2024-04-24 01:44:01 +08:00

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// 该范例主要演示使用RenderList系统绘制多个三角形并利用RenderList进行排序以及自动合并进行Instance渲染
#include"VulkanAppFramework.h"
#include<hgl/math/Math.h>
#include<hgl/filesystem/FileSystem.h>
#include<hgl/graph/VKRenderablePrimitiveCreater.h>
#include<hgl/graph/VKVertexInputConfig.h>
#include<hgl/graph/mtl/Material2DCreateConfig.h>
#include<hgl/graph/RenderList.h>
using namespace hgl;
using namespace hgl::graph;
constexpr uint32_t SCREEN_WIDTH=1024;
constexpr uint32_t SCREEN_HEIGHT=1024;
constexpr uint32_t VERTEX_COUNT=3;
constexpr float position_data[VERTEX_COUNT*2]=
{
0.0, 0.0,
-0.1, 0.9,
0.1, 0.9
};
constexpr uint8 color_data[VERTEX_COUNT][4]=
{
{255,0,0,255},
{0,255,0,255},
{0,0,255,255}
};
class TestApp:public VulkanApplicationFramework
{
private:
SceneNode render_root;
RenderList * render_list =nullptr;
MaterialInstance * material_instance =nullptr;
Renderable * render_obj =nullptr;
Pipeline * pipeline =nullptr;
private:
bool InitMaterial()
{
{
mtl::Material2DCreateConfig cfg(device->GetDeviceAttribute(),"VertexColor2D",Prim::Triangles);
cfg.coordinate_system=CoordinateSystem2D::NDC;
cfg.local_to_world=true;
AutoDelete<mtl::MaterialCreateInfo> mci=mtl::CreateVertexColor2D(&cfg);
VILConfig vil_config;
vil_config.Add(VAN::Color,VF_V4UN8);
material_instance=db->CreateMaterialInstance(mci,&vil_config);
}
if(!material_instance)
return(false);
// pipeline=db->CreatePipeline(material_instance,sc_render_target,OS_TEXT("res/pipeline/solid2d"));
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
return pipeline;
}
bool InitVBO()
{
RenderablePrimitiveCreater rpc(db,"Triangle",VERTEX_COUNT);
if(!rpc.SetVAB(VAN::Position, VF_V2F, position_data))return(false);
if(!rpc.SetVAB(VAN::Color, VF_V4UN8, color_data ))return(false);
render_obj=rpc.Create(material_instance,pipeline);
if(!render_obj)
return(false);
for(uint i=0;i<12;i++)
render_root.CreateSubNode(rotate(deg2rad(30*i),Vector3f(0,0,1)),render_obj);
render_root.RefreshMatrix();
render_list->Expend(&render_root);
return(true);
}
public:
~TestApp()
{
SAFE_CLEAR(render_list);
}
bool Init()
{
if(!VulkanApplicationFramework::Init(SCREEN_WIDTH,SCREEN_HEIGHT))
return(false);
render_list=new RenderList(device);
if(!InitMaterial())
return(false);
if(!InitVBO())
return(false);
BuildCommandBuffer(render_list);
return(true);
}
void Resize(uint w,uint h)override
{
VulkanApplicationFramework::Resize(w,h);
BuildCommandBuffer(render_list);
}
};//class TestApp:public VulkanApplicationFramework
int main(int,char **)
{
TestApp app;
if(!app.Init())
return(-1);
while(app.Run());
return 0;
}