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画torus包围盒正确

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This commit is contained in:
hyzboy
2025-07-08 23:47:22 +08:00
parent 75dd6a6bc3
commit 6772ccd4ac
1 changed files with 42 additions and 15 deletions
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55
example/Basic/RenderBoundBox.cpp
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@@ -25,6 +25,7 @@ constexpr const COLOR TestColor[]=
COLOR::BlenderAxisBlue, COLOR::BlenderAxisBlue,
COLOR::BananaYellow, COLOR::BananaYellow,
COLOR::CherryBlossomPink
}; };
constexpr const size_t COLOR_COUNT=sizeof(TestColor)/sizeof(COLOR); constexpr const size_t COLOR_COUNT=sizeof(TestColor)/sizeof(COLOR);
@@ -54,7 +55,7 @@ private:
MeshComponentData *data; MeshComponentData *data;
ComponentDataPtr cdp; ComponentDataPtr cdp;
MeshComponent *component; MeshComponent *component[7];
public: public:
@@ -233,14 +234,16 @@ private:
{ {
cci.mat=ScaleMatrix(10,10,1); cci.mat=ScaleMatrix(10,10,1);
rm_plane->component=CreateComponent<MeshComponent>(&cci,rm_plane->cdp); //rm_plane->component=CreateComponent<MeshComponent>(&cci,rm_plane->cdp);
} }
{ {
cci.mat=AxisYRotate(deg2rad(90)); for(int i=0;i<6;i++)
{
rm_torus->component=CreateComponent<MeshComponent>(&cci,rm_torus->cdp); cci.mat=AxisYRotate(deg2rad(i*30.0f));
rm_torus->component->SetOverrideMaterial(solid.mi[1]); rm_torus->component[i]=CreateComponent<MeshComponent>(&cci,rm_torus->cdp);
rm_torus->component[i]->SetOverrideMaterial(solid.mi[i]);
}
} }
return(true); return(true);
@@ -250,22 +253,44 @@ private:
{ {
CreateComponentInfo cci(GetSceneRoot()); CreateComponentInfo cci(GetSceneRoot());
ParsePrimitiveType AABB aabb;
OBB obb; // OBB obb;
rm_torus->component->GetWorldOBB(obb);
cci.mat=TranslateMatrix(obb.GetCenter()) * for(int i=0;i<6;i++)
obb.GetRotationMatrix() * {
ScaleMatrix(obb.GetHalfExtend()*2.0f); //*2.0f并不是因为OBB尺寸不对，是因为CUBE的原始尺寸就是1 PrimitiveComponent *component=rm_torus->component[i];
component->GetLocalAABB(aabb);
//Matrix4f translate_matrix=obb.GetRotationMatrix();
//Matrix4f rotate_matrix=obb.GetRotationMatrix();
//Matrix4f scale_matrix=ScaleMatrix(obb.GetHalfExtend()*2.0f);
Matrix3f rotate_scale_matrix=component->GetLocalToWorldMatrix();
rotate_scale_matrix[0]=glm::normalize(rotate_scale_matrix[0]);
rotate_scale_matrix[1]=glm::normalize(rotate_scale_matrix[1]);
rotate_scale_matrix[2]=glm::normalize(rotate_scale_matrix[2]);
Matrix4f rotate_matrix=rotate_scale_matrix;
Matrix4f translate_matrix=TranslateMatrix(aabb.GetCenter());
Matrix4f scale_matrix=ScaleMatrix(aabb.GetLength());
cci.mat=translate_matrix*rotate_matrix*scale_matrix;
CreateComponent<MeshComponent>(&cci,rm_box->cdp); CreateComponent<MeshComponent>(&cci,rm_box->cdp);
}
return(true);
}
void SetCamera()
{
CameraControl *camera_control=GetCameraControl(); CameraControl *camera_control=GetCameraControl();
camera_control->SetPosition(Vector3f(8,8,8)); camera_control->SetPosition(Vector3f(8,8,8));
camera_control->SetTarget(Vector3f(0,0,0)); camera_control->SetTarget(Vector3f(0,0,0));
return(true);
} }
public: public:
@@ -308,6 +333,8 @@ public:
if(!InitBoundingBoxScene()) if(!InitBoundingBoxScene())
return(false); return(false);
SetCamera();
return(true); return(true);
} }
};//class TestApp:public CameraAppFramework };//class TestApp:public CameraAppFramework