168 lines
3.9 KiB
C++
168 lines
3.9 KiB
C++
// first_triangle
|
||
// 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
|
||
|
||
#include"VulkanAppFramework.h"
|
||
#include<hgl/math/Math.h>
|
||
#include<hgl/math/HalfFloat.h>
|
||
#include<hgl/filesystem/FileSystem.h>
|
||
#include<hgl/graph/SceneInfo.h>
|
||
#include<hgl/graph/VKVertexInputConfig.h>
|
||
#include<hgl/graph/VKRenderablePrimitiveCreater.h>
|
||
#include<hgl/graph/mtl/2d/Material2DCreateConfig.h>
|
||
|
||
using namespace hgl;
|
||
using namespace hgl::graph;
|
||
|
||
constexpr uint32_t SCREEN_WIDTH=1280;
|
||
constexpr uint32_t SCREEN_HEIGHT=720;
|
||
|
||
constexpr uint32_t VERTEX_COUNT=3;
|
||
|
||
constexpr float position_data_float[VERTEX_COUNT*2]=
|
||
{
|
||
0.0, -0.5,
|
||
-0.5, 0.5,
|
||
0.5, 0.5
|
||
};
|
||
|
||
#define USE_HALF_FLOAT_POSITION
|
||
|
||
#ifdef USE_HALF_FLOAT_POSITION
|
||
constexpr VkFormat PositionFormat=VF_V2HF;
|
||
|
||
half_float position_data_hf[VERTEX_COUNT*2];
|
||
|
||
#define position_data position_data_hf
|
||
#else
|
||
constexpr VkFormat PositionFormat=VF_V2F;
|
||
|
||
#define position_data position_data_float
|
||
#endif//USE_HALF_FLOAT_POSITION
|
||
|
||
#define USE_UNORM8_COLOR
|
||
|
||
#ifdef USE_UNORM8_COLOR
|
||
constexpr uint8 color_data[VERTEX_COUNT*4]=
|
||
{ 255,0,0,255,
|
||
0,255,0,255,
|
||
0,0,255,255
|
||
};
|
||
|
||
constexpr VkFormat ColorFormat=VF_V4UN8;
|
||
#else
|
||
constexpr float color_data[VERTEX_COUNT*4]=
|
||
{ 1,0,0,1,
|
||
0,1,0,1,
|
||
0,0,1,1
|
||
};
|
||
|
||
constexpr VkFormat ColorFormat=VF_V4F;
|
||
#endif//USE_UNORM8_COLOR
|
||
|
||
class TestApp:public VulkanApplicationFramework
|
||
{
|
||
private:
|
||
|
||
#if defined(USE_HALF_FLOAT_POSITION)||defined(USE_UNORM8_COLOR)
|
||
VILConfig vil_config;
|
||
#endif
|
||
|
||
MaterialInstance * material_instance =nullptr;
|
||
Renderable * render_obj =nullptr;
|
||
|
||
Pipeline * pipeline =nullptr;
|
||
|
||
private:
|
||
|
||
void InitVIL()
|
||
{
|
||
#ifdef USE_HALF_FLOAT_POSITION
|
||
vil_config.Add(VAN::Position,PositionFormat);
|
||
#endif//USE_HALF_FLOAT_POSITION
|
||
|
||
#ifdef USE_UNORM8_COLOR
|
||
vil_config.Add(VAN::Color,ColorFormat);
|
||
#endif//USE_HALF_FLOAT_POSITION
|
||
}
|
||
|
||
bool InitAutoMaterial()
|
||
{
|
||
mtl::Material2DCreateConfig cfg(device->GetDeviceAttribute(),"VertexColor2d",Prim::Triangles);
|
||
|
||
cfg.coordinate_system=CoordinateSystem2D::NDC;
|
||
cfg.local_to_world=false;
|
||
|
||
AutoDelete<mtl::MaterialCreateInfo> mci=mtl::CreateVertexColor2D(&cfg);
|
||
|
||
material_instance=db->CreateMaterialInstance(mci,&vil_config);
|
||
|
||
return material_instance;
|
||
}
|
||
|
||
bool InitPipeline()
|
||
{
|
||
// 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,VERTEX_COUNT);
|
||
|
||
#ifdef USE_HALF_FLOAT_POSITION
|
||
Float32toFloat16(position_data_hf,position_data_float,VERTEX_COUNT*2);
|
||
#endif//USE_HALF_FLOAT_POSITION
|
||
|
||
if(!rpc.SetVBO(VAN::Position, PositionFormat, position_data))return(false);
|
||
if(!rpc.SetVBO(VAN::Color, ColorFormat, color_data ))return(false);
|
||
|
||
render_obj=rpc.Create(material_instance,pipeline);
|
||
return(render_obj);
|
||
}
|
||
|
||
public:
|
||
|
||
bool Init()
|
||
{
|
||
if(!VulkanApplicationFramework::Init(SCREEN_WIDTH,SCREEN_HEIGHT))
|
||
return(false);
|
||
|
||
InitVIL();
|
||
|
||
if(!InitAutoMaterial())
|
||
return(false);
|
||
|
||
if(!InitPipeline())
|
||
return(false);
|
||
|
||
if(!InitVBO())
|
||
return(false);
|
||
|
||
if(!BuildCommandBuffer(render_obj))
|
||
return(false);
|
||
|
||
return(true);
|
||
}
|
||
|
||
void Resize(int w,int h)override
|
||
{
|
||
VulkanApplicationFramework::Resize(w,h);
|
||
|
||
BuildCommandBuffer(render_obj);
|
||
}
|
||
};//class TestApp:public VulkanApplicationFramework
|
||
|
||
int main(int,char **)
|
||
{
|
||
TestApp app;
|
||
|
||
if(!app.Init())
|
||
return(-1);
|
||
|
||
while(app.Run());
|
||
|
||
return 0;
|
||
}
|