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实现Gizmo3DMove三个轴都可以选

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This commit is contained in:
hyzboy
2025-07-29 01:09:53 +08:00
parent 3c611be712
commit 24569ea36f
2 changed files with 30 additions and 19 deletions
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47
example/Gizmo/Gizmo3DMove.cpp
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@@ -44,11 +44,13 @@ namespace
{ {
struct GizmoMoveAxis struct GizmoMoveAxis
{ {
MaterialInstance *mi; //材质实例
MeshComponent *cylinder; //圆柱 MeshComponent *cylinder; //圆柱
MeshComponent *cone; //圆锥 MeshComponent *cone; //圆锥
MeshComponent *square; //双轴调节正方形 MeshComponent *square; //双轴调节正方形
}; };
MaterialInstance *pick_mi;
MeshComponent *sphere=nullptr; MeshComponent *sphere=nullptr;
GizmoMoveAxis axis[3]{}; //X,Y,Z 三个轴 GizmoMoveAxis axis[3]{}; //X,Y,Z 三个轴
@@ -69,9 +71,12 @@ namespace
void DuplicationComponents(SceneNode *node) const override void DuplicationComponents(SceneNode *node) const override
{ {
GizmoMoveNode *gmn=(GizmoMoveNode *)node; GizmoMoveNode *gmn=(GizmoMoveNode *)node;
if(!gmn) if(!gmn)
return; return;
gmn->pick_mi=pick_mi;
#define DUPLICATION_COMPONENT(c) gmn->c=(MeshComponent *)(c->Duplication()); \ #define DUPLICATION_COMPONENT(c) gmn->c=(MeshComponent *)(c->Duplication()); \
gmn->AttachComponent(gmn->c); gmn->AttachComponent(gmn->c);
@@ -79,6 +84,7 @@ namespace
for(size_t i=0;i<3;i++) for(size_t i=0;i<3;i++)
{ {
gmn->axis[i].mi=axis[i].mi; // 复制材质实例
DUPLICATION_COMPONENT(axis[i].cylinder); DUPLICATION_COMPONENT(axis[i].cylinder);
DUPLICATION_COMPONENT(axis[i].cone); DUPLICATION_COMPONENT(axis[i].cone);
DUPLICATION_COMPONENT(axis[i].square); DUPLICATION_COMPONENT(axis[i].square);
@@ -101,13 +107,14 @@ namespace
CreateComponentInfo cci(this); CreateComponentInfo cci(this);
pick_mi=GetGizmoMI3D(GizmoColor::Yellow); //获取拾取材质实例
sphere=render_framework->CreateComponent<MeshComponent>(&cci,SpherePtr); //中心球 sphere=render_framework->CreateComponent<MeshComponent>(&cci,SpherePtr); //中心球
sphere->SetOverrideMaterial(GetGizmoMI3D(GizmoColor::White)); //白色 sphere->SetOverrideMaterial(GetGizmoMI3D(GizmoColor::White)); //白色
{ {
Transform tm; Transform tm;
GizmoMoveAxis *gma; GizmoMoveAxis *gma;
MaterialInstance *mi=nullptr;
const Vector3f one_scale(1); const Vector3f one_scale(1);
const Vector3f square_scale(2); const Vector3f square_scale(2);
@@ -115,73 +122,73 @@ namespace
{ {
gma=axis+size_t(AXIS::Z); gma=axis+size_t(AXIS::Z);
mi=GetGizmoMI3D(GizmoColor::Blue); gma->mi=GetGizmoMI3D(GizmoColor::Blue);
tm.SetScale(cylinder_scale); tm.SetScale(cylinder_scale);
tm.SetTranslation(0,0,GIZMO_CYLINDER_OFFSET); tm.SetTranslation(0,0,GIZMO_CYLINDER_OFFSET);
cci.mat=tm; cci.mat=tm;
gma->cylinder=render_framework->CreateComponent<MeshComponent>(&cci,CylinderPtr); //Z 向上圆柱 gma->cylinder=render_framework->CreateComponent<MeshComponent>(&cci,CylinderPtr); //Z 向上圆柱
gma->cylinder->SetOverrideMaterial(mi); gma->cylinder->SetOverrideMaterial(gma->mi);
tm.SetScale(one_scale); tm.SetScale(one_scale);
tm.SetTranslation(0,0,GIZMO_CONE_OFFSET); tm.SetTranslation(0,0,GIZMO_CONE_OFFSET);
cci.mat=tm; cci.mat=tm;
gma->cone=render_framework->CreateComponent<MeshComponent>(&cci,ConePtr); //Z 向上圆锥 gma->cone=render_framework->CreateComponent<MeshComponent>(&cci,ConePtr); //Z 向上圆锥
gma->cone->SetOverrideMaterial(mi); gma->cone->SetOverrideMaterial(gma->mi);
tm.SetScale(square_scale); tm.SetScale(square_scale);
tm.SetTranslation(GIZMO_TWO_AXIS_OFFSET,GIZMO_TWO_AXIS_OFFSET,0); tm.SetTranslation(GIZMO_TWO_AXIS_OFFSET,GIZMO_TWO_AXIS_OFFSET,0);
cci.mat=tm; cci.mat=tm;
gma->square=render_framework->CreateComponent<MeshComponent>(&cci,SquarePtr); gma->square=render_framework->CreateComponent<MeshComponent>(&cci,SquarePtr);
gma->square->SetOverrideMaterial(mi); gma->square->SetOverrideMaterial(gma->mi);
} }
{ {
gma=axis+size_t(AXIS::X); gma=axis+size_t(AXIS::X);
mi=GetGizmoMI3D(GizmoColor::Red); gma->mi=GetGizmoMI3D(GizmoColor::Red);
tm.SetScale(cylinder_scale); tm.SetScale(cylinder_scale);
tm.SetRotation(AxisVector::Y,90); tm.SetRotation(AxisVector::Y,90);
tm.SetTranslation(GIZMO_CYLINDER_OFFSET,0,0); tm.SetTranslation(GIZMO_CYLINDER_OFFSET,0,0);
cci.mat=tm; cci.mat=tm;
gma->cylinder=render_framework->CreateComponent<MeshComponent>(&cci,CylinderPtr); //X 向右圆柱 gma->cylinder=render_framework->CreateComponent<MeshComponent>(&cci,CylinderPtr); //X 向右圆柱
gma->cylinder->SetOverrideMaterial(mi); gma->cylinder->SetOverrideMaterial(gma->mi);
tm.SetScale(one_scale); tm.SetScale(one_scale);
tm.SetTranslation(GIZMO_CONE_OFFSET,0,0); tm.SetTranslation(GIZMO_CONE_OFFSET,0,0);
cci.mat=tm; cci.mat=tm;
gma->cone=render_framework->CreateComponent<MeshComponent>(&cci,ConePtr); //Z 向上圆锥 gma->cone=render_framework->CreateComponent<MeshComponent>(&cci,ConePtr); //Z 向上圆锥
gma->cone->SetOverrideMaterial(mi); gma->cone->SetOverrideMaterial(gma->mi);
tm.SetScale(square_scale); tm.SetScale(square_scale);
tm.SetTranslation(0,GIZMO_TWO_AXIS_OFFSET,GIZMO_TWO_AXIS_OFFSET); tm.SetTranslation(0,GIZMO_TWO_AXIS_OFFSET,GIZMO_TWO_AXIS_OFFSET);
cci.mat=tm; cci.mat=tm;
gma->square=render_framework->CreateComponent<MeshComponent>(&cci,SquarePtr); gma->square=render_framework->CreateComponent<MeshComponent>(&cci,SquarePtr);
gma->square->SetOverrideMaterial(mi); gma->square->SetOverrideMaterial(gma->mi);
} }
{ {
gma=axis+size_t(AXIS::Y); gma=axis+size_t(AXIS::Y);
mi=GetGizmoMI3D(GizmoColor::Green); gma->mi=GetGizmoMI3D(GizmoColor::Green);
tm.SetScale(cylinder_scale); tm.SetScale(cylinder_scale);
tm.SetRotation(AxisVector::X,-90); tm.SetRotation(AxisVector::X,-90);
tm.SetTranslation(0,GIZMO_CYLINDER_OFFSET,0); tm.SetTranslation(0,GIZMO_CYLINDER_OFFSET,0);
cci.mat=tm; cci.mat=tm;
gma->cylinder=render_framework->CreateComponent<MeshComponent>(&cci,CylinderPtr); //X 向右圆柱 gma->cylinder=render_framework->CreateComponent<MeshComponent>(&cci,CylinderPtr); //X 向右圆柱
gma->cylinder->SetOverrideMaterial(mi); gma->cylinder->SetOverrideMaterial(gma->mi);
tm.SetScale(one_scale); tm.SetScale(one_scale);
tm.SetTranslation(0,GIZMO_CONE_OFFSET,0); tm.SetTranslation(0,GIZMO_CONE_OFFSET,0);
cci.mat=tm; cci.mat=tm;
gma->cone=render_framework->CreateComponent<MeshComponent>(&cci,ConePtr); //Z 向上圆锥 gma->cone=render_framework->CreateComponent<MeshComponent>(&cci,ConePtr); //Z 向上圆锥
gma->cone->SetOverrideMaterial(mi); gma->cone->SetOverrideMaterial(gma->mi);
tm.SetScale(square_scale); tm.SetScale(square_scale);
tm.SetTranslation(GIZMO_TWO_AXIS_OFFSET,0,GIZMO_TWO_AXIS_OFFSET); tm.SetTranslation(GIZMO_TWO_AXIS_OFFSET,0,GIZMO_TWO_AXIS_OFFSET);
cci.mat=tm; cci.mat=tm;
gma->square=render_framework->CreateComponent<MeshComponent>(&cci,SquarePtr); gma->square=render_framework->CreateComponent<MeshComponent>(&cci,SquarePtr);
gma->square->SetOverrideMaterial(mi); gma->square->SetOverrideMaterial(gma->mi);
} }
} }
@@ -200,16 +207,20 @@ namespace
cc->SetMouseRay(&ray,mouse_coord); cc->SetMouseRay(&ray,mouse_coord);
Matrix4f l2w=GetLocalToWorldMatrix(); Matrix4f l2w=GetLocalToWorldMatrix();
Vector3f center=TransformPosition(l2w,Vector3f(0,0,0));
Vector3f start; Vector3f start;
Vector3f end; Vector3f end;
Vector3f p_ray,p_ls; Vector3f p_ray,p_ls;
float dist; float dist;
float pixel_per_unit; float pixel_per_unit;
float center_ppu;
start=TransformPosition(l2w,Vector3f(0,0,0)); //将原点转换到世界坐标 center_ppu=cc->GetPixelPerUnit(center); //求原点坐标相对屏幕空间象素的缩放比
for(int i=0;i<3;i++)
{ {
end=TransformPosition(l2w,Vector3f((GIZMO_CONE_LENGTH+GIZMO_CYLINDER_HALF_LENGTH)*20,0,0)); start=TransformPosition(l2w,GetAxisVector(AXIS(i))*GIZMO_CENTER_SPHERE_RADIUS*center_ppu); //将轴的起点转换到世界坐标
end=TransformPosition(l2w,GetAxisVector(AXIS(i))*(GIZMO_CENTER_SPHERE_RADIUS+GIZMO_CONE_LENGTH+GIZMO_CYLINDER_HALF_LENGTH)*center_ppu);
//求射线与线段的最近点 //求射线与线段的最近点
ray.ClosestPoint(p_ray, //射线上的点 ray.ClosestPoint(p_ray, //射线上的点
@@ -221,10 +232,10 @@ namespace
//求p_ls坐标相对屏幕空间象素的缩放比 //求p_ls坐标相对屏幕空间象素的缩放比
pixel_per_unit=cc->GetPixelPerUnit(p_ls); pixel_per_unit=cc->GetPixelPerUnit(p_ls);
MaterialInstance *mi=GetGizmoMI3D(dist<GIZMO_CYLINDER_RADIUS*pixel_per_unit?GizmoColor::Yellow:GizmoColor::Red); MaterialInstance *mi=dist<GIZMO_CYLINDER_RADIUS*pixel_per_unit?pick_mi:axis[i].mi;
axis[size_t(AXIS::X)].cylinder->SetOverrideMaterial(mi); axis[i].cylinder->SetOverrideMaterial(mi);
axis[size_t(AXIS::X)].cone->SetOverrideMaterial(mi); axis[i].cone->SetOverrideMaterial(mi);
//std::cout<<"Mouse: "<<mouse_coord.x<<","<<mouse_coord.y<<std::endl; //std::cout<<"Mouse: "<<mouse_coord.x<<","<<mouse_coord.y<<std::endl;
//std::cout<<"Ray(Ori): "<<ray.origin.x<<","<<ray.origin.y<<","<<ray.origin.z<<")"<<std::endl; //std::cout<<"Ray(Ori): "<<ray.origin.x<<","<<ray.origin.y<<","<<ray.origin.z<<")"<<std::endl;

2
example/Gizmo/GizmoResource.h
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@@ -18,7 +18,7 @@ constexpr const COLOR gizmo_color[size_t(GizmoColor::RANGE_SIZE)]=
COLOR::BlenderAxisGreen, COLOR::BlenderAxisGreen,
COLOR::BlenderAxisBlue, COLOR::BlenderAxisBlue,
COLOR::BlenderYellow, COLOR::GoldenYellow,
}; };
constexpr const float GIZMO_ARROW_LENGTH =10.0f; ///<箭头整体长度 constexpr const float GIZMO_ARROW_LENGTH =10.0f; ///<箭头整体长度