190 lines
4.4 KiB
C++
190 lines
4.4 KiB
C++
// 18.RayPicking
|
|
|
|
#include"VulkanAppFramework.h"
|
|
#include<hgl/filesystem/FileSystem.h>
|
|
#include<hgl/graph/InlineGeometry.h>
|
|
#include<hgl/graph/VKRenderResource.h>
|
|
#include<hgl/graph/RenderList.h>
|
|
#include<hgl/graph/Camera.h>
|
|
#include<hgl/graph/Ray.h>
|
|
#include<hgl/graph/VKVertexAttribBuffer.h>
|
|
|
|
using namespace hgl;
|
|
using namespace hgl::graph;
|
|
|
|
constexpr uint32_t SCREEN_WIDTH=1280;
|
|
constexpr uint32_t SCREEN_HEIGHT=720;
|
|
|
|
static float position_data[2][3]=
|
|
{
|
|
{100,100,100},
|
|
{0,0,0}
|
|
};
|
|
|
|
static float color_data[2][4]=
|
|
{
|
|
{1,1,0,1},
|
|
{1,1,0,1}
|
|
};
|
|
|
|
class TestApp:public CameraAppFramework
|
|
{
|
|
Color4f color;
|
|
|
|
GPUBuffer *ubo_color=nullptr;
|
|
|
|
private:
|
|
|
|
SceneNode render_root;
|
|
RenderList * render_list =nullptr;
|
|
|
|
Material * material =nullptr;
|
|
MaterialInstance * material_instance =nullptr;
|
|
Pipeline * pipeline =nullptr;
|
|
|
|
Primitive * ro_plane_grid =nullptr;
|
|
|
|
Primitive * ro_line =nullptr;
|
|
|
|
VBO * vbo_pos =nullptr;
|
|
|
|
Ray ray;
|
|
|
|
private:
|
|
|
|
bool InitMDP()
|
|
{
|
|
material=db->CreateMaterial(OS_TEXT("res/material/VertexColor3D"));
|
|
if(!material)return(false);
|
|
|
|
material_instance=db->CreateMaterialInstance(material);
|
|
if(!material_instance)return(false);
|
|
|
|
pipeline=CreatePipeline(material_instance,InlinePipeline::Solid3D,Prim::Lines);
|
|
if(!pipeline)
|
|
return(false);
|
|
|
|
return(true);
|
|
}
|
|
|
|
RenderableInstance *Add(Primitive *r,const Matrix4f &mat)
|
|
{
|
|
RenderableInstance *ri=db->CreateRenderableInstance(r,material_instance,pipeline);
|
|
|
|
render_root.CreateSubNode(mat,ri);
|
|
|
|
return ri;
|
|
}
|
|
|
|
bool CreateRenderObject()
|
|
{
|
|
{
|
|
struct PlaneGridCreateInfo pgci;
|
|
|
|
pgci.coord[0]=Vector3f(-100,-100,0);
|
|
pgci.coord[1]=Vector3f( 100,-100,0);
|
|
pgci.coord[2]=Vector3f( 100, 100,0);
|
|
pgci.coord[3]=Vector3f(-100, 100,0);
|
|
|
|
pgci.step.x=32;
|
|
pgci.step.y=32;
|
|
|
|
pgci.side_step.x=8;
|
|
pgci.side_step.y=8;
|
|
|
|
pgci.color.Set(0.25,0,0,1);
|
|
pgci.side_color.Set(1,0,0,1);
|
|
|
|
const VAB *vab=material_instance->GetVAB();
|
|
|
|
ro_plane_grid=CreateRenderablePlaneGrid(db,vab,&pgci);
|
|
}
|
|
|
|
{
|
|
ro_line=db->CreatePrimitive(2);
|
|
if(!ro_line)return(false);
|
|
|
|
if(!ro_line->Set(VAN::Position, vbo_pos=db->CreateVBO(VF_V3F,2,position_data)))return(false);
|
|
if(!ro_line->Set(VAN::Color, db->CreateVBO(VF_V4F,2,color_data)))return(false);
|
|
}
|
|
|
|
return(true);
|
|
}
|
|
|
|
bool InitScene()
|
|
{
|
|
Add(ro_plane_grid,Matrix4f(1.0f));
|
|
Add(ro_line,Matrix4f(1.0f));
|
|
|
|
camera->pos=Vector3f(100,100,50);
|
|
camera_control->SetTarget(Vector3f(0,0,0));
|
|
camera_control->Refresh();
|
|
|
|
render_root.RefreshMatrix();
|
|
render_list->Expend(camera->info,&render_root);
|
|
|
|
return(true);
|
|
}
|
|
|
|
public:
|
|
|
|
~TestApp()
|
|
{
|
|
SAFE_CLEAR(render_list);
|
|
}
|
|
|
|
bool Init()
|
|
{
|
|
if(!CameraAppFramework::Init(SCREEN_WIDTH,SCREEN_HEIGHT))
|
|
return(false);
|
|
|
|
render_list=new RenderList(device);
|
|
|
|
if(!InitMDP())
|
|
return(false);
|
|
|
|
if(!CreateRenderObject())
|
|
return(false);
|
|
|
|
if(!InitScene())
|
|
return(false);
|
|
|
|
return(true);
|
|
}
|
|
|
|
void BuildCommandBuffer(uint32 index)
|
|
{
|
|
const CameraInfo &ci=GetCameraInfo();
|
|
|
|
ray.Set(GetMouseCoord(),&ci); //设置射线查询的屏幕坐标点
|
|
|
|
const Vector3f pos=ray.ClosestPoint(Vector3f(0,0,0)); //求射线上与点(0,0,0)最近的点的坐标
|
|
|
|
vbo_pos->Write(&pos,3*sizeof(float)); //更新VBO上这个点的位置
|
|
|
|
render_root.RefreshMatrix();
|
|
render_list->Expend(ci,&render_root);
|
|
|
|
VulkanApplicationFramework::BuildCommandBuffer(index,render_list);
|
|
}
|
|
|
|
void Resize(int w,int h)override
|
|
{
|
|
CameraAppFramework::Resize(w,h);
|
|
|
|
VulkanApplicationFramework::BuildCommandBuffer(render_list);
|
|
}
|
|
};//class TestApp:public CameraAppFramework
|
|
|
|
int main(int,char **)
|
|
{
|
|
TestApp app;
|
|
|
|
if(!app.Init())
|
|
return(-1);
|
|
|
|
while(app.Run());
|
|
|
|
return 0;
|
|
}
|