167 lines
4.4 KiB
C++
167 lines
4.4 KiB
C++
// 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"WorkObject.h"
|
||
#include<hgl/math/HalfFloat.h>
|
||
#include<hgl/graph/VKVertexInputConfig.h>
|
||
#include<hgl/graph/PrimitiveCreater.h>
|
||
#include<hgl/graph/mtl/Material2DCreateConfig.h>
|
||
#include<hgl/graph/VKMaterialInstance.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
|
||
};
|
||
|
||
constexpr VkFormat PositionFormat=VF_V2F;
|
||
|
||
#define position_data position_data_float
|
||
|
||
constexpr float color_data[VERTEX_COUNT*4]=
|
||
{ 1,0,0,1,
|
||
0,1,0,1,
|
||
0,0,1,1
|
||
};
|
||
|
||
constexpr VkFormat ColorFormat=VF_V4F;
|
||
|
||
class TestApp:public WorkObject
|
||
{
|
||
private:
|
||
|
||
Color4f clear_color =Color4f(0.2f,0.2f,0.2f,1.0f);
|
||
|
||
MaterialInstance * material_instance =nullptr;
|
||
Renderable * render_obj =nullptr;
|
||
|
||
Pipeline * pipeline =nullptr;
|
||
|
||
private:
|
||
|
||
bool InitAutoMaterial()
|
||
{
|
||
mtl::Material2DCreateConfig cfg(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);
|
||
|
||
return material_instance;
|
||
}
|
||
|
||
bool InitPipeline()
|
||
{
|
||
RenderPass *sc_render_pass=GetRenderFramework()->GetSwapchainModule()->GetRenderPass();
|
||
|
||
// pipeline=db->CreatePipeline(material_instance,sc_render_target,OS_TEXT("res/pipeline/solid2d"));
|
||
pipeline=sc_render_pass->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()
|
||
{
|
||
PrimitiveCreater rpc(GetDevice(),material_instance->GetVIL());
|
||
|
||
rpc.Init("Triangle",VERTEX_COUNT);
|
||
|
||
if(!rpc.WriteVAB(VAN::Position, PositionFormat, position_data))return(false);
|
||
if(!rpc.WriteVAB(VAN::Color, ColorFormat, color_data ))return(false);
|
||
|
||
render_obj=db->CreateRenderable(&rpc,material_instance,pipeline);
|
||
return(render_obj);
|
||
}
|
||
|
||
public:
|
||
|
||
TestApp(RenderFramework *rf):WorkObject(rf)
|
||
{}
|
||
|
||
bool Init()
|
||
{
|
||
if(!InitAutoMaterial())
|
||
return(false);
|
||
|
||
if(!InitPipeline())
|
||
return(false);
|
||
|
||
if(!InitVBO())
|
||
return(false);
|
||
|
||
return(true);
|
||
}
|
||
|
||
void Tick(double)override
|
||
{}
|
||
|
||
void Render(RenderCmdBuffer *cb,Renderable *ri)
|
||
{
|
||
if(!ri)return;
|
||
|
||
cb->BeginRenderPass();
|
||
cb->BindPipeline(ri->GetPipeline());
|
||
cb->BindDescriptorSets(ri->GetMaterial());
|
||
cb->BindDataBuffer(ri->GetDataBuffer());
|
||
cb->Draw(ri->GetDataBuffer(),ri->GetRenderData());
|
||
cb->EndRenderPass();
|
||
}
|
||
|
||
void Render(double)
|
||
{
|
||
//WorkObject是工作对象，不是渲染对象，所以不应该直接自动指定RenderTarget，更不能直接指定RenderCmdBuffer
|
||
|
||
//目前这里只是为了测试，所以这样写
|
||
|
||
RenderFramework *rf=GetRenderFramework();
|
||
SwapchainModule *sm=rf->GetSwapchainModule();
|
||
|
||
sm->BeginFrame(); //这里会有AcquireNextImage操作
|
||
|
||
//这个使用完全不合理，录制CMD和推送swapchain是两回事，需要分开操作。
|
||
//比如场景有的物件分静态和动态
|
||
|
||
//可能静态物件就全部一次性录制好，而动态物件则是每帧录制
|
||
|
||
RenderCmdBuffer *cb=sm->RecordCmdBuffer(); //这里会获取当前帧的RenderCmdBuffer、开启cmd录制、绑定FBO
|
||
|
||
if(cb)
|
||
{
|
||
cb->SetClearColor(0,clear_color);
|
||
|
||
Render(cb,render_obj);
|
||
|
||
cb->End(); //结束cmd录制
|
||
}
|
||
sm->EndFrame(); //这里会Submit和PresentBackbuffer
|
||
}
|
||
};//class TestApp:public VulkanApplicationFramework
|
||
|
||
int main(int,char **)
|
||
{
|
||
RenderFramework rf(OS_TEXT("RenderFramework Test"));
|
||
|
||
if(!rf.Init(SCREEN_WIDTH,SCREEN_HEIGHT))
|
||
return(-1);
|
||
|
||
WorkManager wm(&rf);
|
||
|
||
TestApp *test=new TestApp(&rf);
|
||
|
||
if(!test->Init())
|
||
return(-2);
|
||
|
||
wm.Start(test);
|
||
}
|