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create BillboardSceneNode, but isn't final design.

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This commit is contained in:
hyzboy 2024-08-08 01:43:20 +08:00
parent 3589376b79
commit 0a5fb750fa
7 changed files with 91 additions and 45 deletions
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2
CMCore

@ -1 +1 @@
Subproject commit 1bc9a625da6689e95a106e838b81dd82e2eb69e8
Subproject commit cc4183ca55158efa3e4321cc3dbfbd3703eca1d6

2
CMSceneGraph

@ -1 +1 @@
Subproject commit d79ee130efcc4e4df9a5e0185e41908639490fe4
Subproject commit 079becd267447676ced6678bd8406208d73169ee

2
example/Gizmo/Gizmo3DRotate.cpp
View File

@ -42,7 +42,7 @@ bool InitGizmoRotateStaticMesh()
{
Transform tm;
tm.SetScale(10.0f);
tm.SetScale(5.0f);
root_node->CreateSubNode(tm,torus[0]);

97
example/Gizmo/GizmoTest.cpp
View File

@ -8,21 +8,56 @@ using namespace hgl::graph;
const Vector3f GizmoPosition(0,0,0);
/**
* 求一个世界坐标在屏幕上的位置
* 一种永远转向正面的场景节点
*/
Vector2f WorldToScreen(const Vector3f &world_pos,const CameraInfo &ci,const ViewportInfo &vi)
class BillboardSceneNode:public SceneNode
{
Vector4f pos=ci.vp*Vector4f(world_pos,1);
CameraInfo *camera_info=nullptr;
bool face_to_camera=false;
pos/=pos.w;
ViewportInfo *viewport_info=nullptr;
float fixed_scale=1.0;
return Vector2f((pos.x+1)*vi.GetViewportWidth()/2,(1-pos.y)*vi.GetViewportHeight()/2);
}
public:
using SceneNode::SceneNode;
virtual ~BillboardSceneNode()=default;
virtual void SetCameraInfo (CameraInfo * ci ){camera_info =ci;}
virtual void SetViewportInfo(ViewportInfo * vi ){viewport_info =vi;}
virtual void SetFaceToCamera(bool ftc ){face_to_camera=ftc;}
virtual void SetFixedScale (const float size){fixed_scale =size;}
virtual bool RefreshTransform(const Transform &tf=IdentityTransform) override
{
if(!camera_info)
{
return SceneNode::RefreshTransform(tf);
}
if(face_to_camera)
{
LocalTransform.SetRotation(CalculateFacingRotationQuat(GetWorldPosition(),camera_info->view,AxisVector::X));
}
if(viewport_info)
{
const float screen_height=viewport_info->GetViewportHeight();
const Vector4f pos=camera_info->Project(GetWorldPosition());
LocalTransform.SetScale(pos.w*fixed_scale/screen_height);
}
return SceneNode::RefreshTransform(tf);
}
};//class BillboardSceneNode:public SceneNode
class TestApp:public SceneAppFramework
{
SceneNode root;
SceneNode *rotate_white_torus=nullptr;
BillboardSceneNode *rotate_white_torus=nullptr;
StaticMesh *sm_move=nullptr;
StaticMesh *sm_rotate=nullptr;
@ -47,22 +82,33 @@ private:
void InitGizmoSceneTree()
{
camera_control->Refresh();
const CameraInfo &ci=camera_control->GetCameraInfo();
CameraInfo *ci=camera_control->GetCameraInfo();
root.Clear();
root.CreateSubNode(sm_move->GetScene());
root.CreateSubNode(sm_rotate->GetScene());
rotate_white_torus=root.CreateSubNode(face_torus);
{
Transform tm;
tm.SetScale(7.5);
rotate_white_torus=new BillboardSceneNode(tm,face_torus);
rotate_white_torus->SetCameraInfo(ci);
rotate_white_torus->SetFaceToCamera(true);
root.AddSubNode(rotate_white_torus);
}
root.RefreshTransform();
render_list->SetCamera(&(camera_control->GetCameraInfo()));
render_list->SetCamera(ci);
render_list->Expend(&root);
}
public:
bool Init(uint w,uint h)
{
if(!SceneAppFramework::Init(w,h))
@ -71,7 +117,7 @@ public:
if(!InitGizmo())
return(false);
InitGizmoSceneTree();
InitGizmoSceneTree();
camera->pos=Vector3f(32,32,32);
camera_control->SetTarget(Vector3f(0,0,0));
@ -88,29 +134,20 @@ public:
{
camera_control->Refresh();
const CameraInfo &ci=camera_control->GetCameraInfo();
const ViewportInfo &vi=GetViewportInfo();
const CameraInfo *ci=camera_control->GetCameraInfo();
const ViewportInfo *vi=GetViewportInfo();
const float screen_height=vi.GetViewportHeight();
const float screen_height=vi->GetViewportHeight();
const Vector4f pos=ci.Project(GizmoPosition);
const Vector4f pos=ci->Project(GizmoPosition);
{
Transform tm;
//{
// Transform tm;
tm.SetRotation(CalculateFacingRotationQuat(GizmoPosition,ci.view,AxisVector::X));
tm.SetScale(15);
// tm.SetScale(pos.w*16.0f/screen_height);
rotate_white_torus->SetLocalTransform(tm);
}
{
Transform tm;
tm.SetScale(pos.w*16.0f/screen_height);
root.SetLocalTransform(tm);
}
// root.SetLocalTransform(tm);
//}
root.RefreshTransform();
render_list->UpdateTransform();

10
example/Gizmo/RayPicking.cpp
View File

@ -55,7 +55,7 @@ private:
cfg.local_to_world=true;
{
{
cfg.mtl_name="VertexLuminance2D"; //注意必须用不同名字，未来改名材质文件名+cfg hash名
cfg.position_format=VAT_VEC2;
@ -69,7 +69,7 @@ private:
mi_plane_grid=db->CreateMaterialInstance(mtl_plane_grid,&vil_config,&white_color);
if(!mi_plane_grid)return(false);
pipeline_plane_grid=CreatePipeline(mi_plane_grid,InlinePipeline::Solid3D,Prim::Lines);
pipeline_plane_grid=CreatePipeline(mi_plane_grid,InlinePipeline::Solid3D,Prim::Lines);
if(!pipeline_plane_grid)return(false);
}
@ -184,10 +184,10 @@ public:
void BuildCommandBuffer(uint32 index) override
{
const CameraInfo &ci=GetCameraInfo();
const ViewportInfo &vi=GetViewportInfo();
const CameraInfo *ci=GetCameraInfo();
const ViewportInfo *vi=GetViewportInfo();
ray.Set(GetMouseCoord(),&ci,&vi); //设置射线查询的屏幕坐标点
ray.Set(GetMouseCoord(),ci,vi); //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

14
example/common/VulkanAppFramework.h
View File

@ -173,9 +173,9 @@ public:
ubo_vp_info->Write(&vp_info);
}
ViewportInfo &GetViewportInfo()
ViewportInfo *GetViewportInfo()
{
return vp_info;
return &vp_info;
}
DeviceBuffer *GetViewportInfoBuffer()
@ -532,9 +532,9 @@ public:
win->Join(ckc);
win->Join(cmc);
RefreshCameraInfo(&camera_control->GetCameraInfo(),&vp_info,camera);
RefreshCameraInfo(camera_control->GetCameraInfo(),&vp_info,camera);
ubo_camera_info=db->CreateUBO("CameraInfo",sizeof(CameraInfo),&camera_control->GetCameraInfo());
ubo_camera_info=db->CreateUBO("CameraInfo",sizeof(CameraInfo),camera_control->GetCameraInfo());
}
void Resize(uint w,uint h)override
@ -543,10 +543,10 @@ public:
camera_control->Refresh();
ubo_camera_info->Write(&camera_control->GetCameraInfo());
ubo_camera_info->Write(camera_control->GetCameraInfo());
}
CameraInfo &GetCameraInfo()
CameraInfo *GetCameraInfo()
{
return camera_control->GetCameraInfo();
}
@ -562,7 +562,7 @@ public:
{
camera_control->Refresh(); //更新相机矩阵
ubo_camera_info->Write(&camera_control->GetCameraInfo()); //写入缓冲区
ubo_camera_info->Write(camera_control->GetCameraInfo()); //写入缓冲区
const uint32_t index=AcquireNextImage();

9
inc/hgl/graph/SceneNode.h
View File

@ -55,6 +55,15 @@ namespace hgl
Renderable *GetRenderable(){return render_obj;}
void SetRenderable(Renderable *);
SceneNode *AddSubNode(SceneNode *sn)
{
if(!sn)
return(nullptr);
SubNode.Add(sn);
return sn;
}
SceneNode *CreateSubNode()
{
SceneNode *sn=new SceneNode();