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Add CalcWorldBoundingVolumes (#651)

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This commit is contained in:
Christian Semmler
2024-03-10 10:29:16 -04:00
committed by GitHub
parent 660c1e1170
commit d090b449d1
9 changed files with 40 additions and 3 deletions
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26
LEGO1/realtime/orientableroi.cpp
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@@ -131,6 +131,32 @@ void OrientableROI::UpdateWorldVelocity()
{
}
// FUNCTION: LEGO1 0x100a5a60
void CalcWorldBoundingVolumes(
const BoundingSphere& modelling_sphere,
const Matrix4& local2world,
BoundingBox& world_bounding_box,
BoundingSphere& world_bounding_sphere
)
{
// calculate world bounding volumes given a bounding sphere in modelling
// space and local2world transform
// ??? we need to transform the radius too... if scaling...
V3XM4(world_bounding_sphere.Center(), modelling_sphere.Center(), local2world);
world_bounding_sphere.Radius() = modelling_sphere.Radius();
// update world_bounding_box
world_bounding_box.Min()[0] = world_bounding_sphere.Center()[0] - world_bounding_sphere.Radius();
world_bounding_box.Min()[1] = world_bounding_sphere.Center()[1] - world_bounding_sphere.Radius();
world_bounding_box.Min()[2] = world_bounding_sphere.Center()[2] - world_bounding_sphere.Radius();
world_bounding_box.Max()[0] = world_bounding_sphere.Center()[0] + world_bounding_sphere.Radius();
world_bounding_box.Max()[1] = world_bounding_sphere.Center()[1] + world_bounding_sphere.Radius();
world_bounding_box.Max()[2] = world_bounding_sphere.Center()[2] + world_bounding_sphere.Radius();
}
// FUNCTION: LEGO1 0x100a5d80
const float* OrientableROI::GetWorldVelocity() const
{

5
LEGO1/realtime/realtime.h
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@@ -2,6 +2,7 @@
#define REALTIME_H
#include "matrix.h"
#include "roi.h"
#define NORMVEC3(dst, src) \
{ \
@@ -11,4 +12,8 @@
void CalcLocalTransform(const Vector3& p_posVec, const Vector3& p_dirVec, const Vector3& p_upVec, Matrix4& p_outMatrix);
// utility to help derived ROI classes implement
// update_world_bounding_volumes() using a modelling sphere
void CalcWorldBoundingVolumes(const BoundingSphere& modelling_sphere, const Matrix4& local2world, BoundingBox&, BoundingSphere&);
#endif // REALTIME_H

2
LEGO1/realtime/roi.h
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@@ -4,10 +4,10 @@
// ROI stands for Real-time Object Instance.
#include "compat.h"
#include "decomp.h"
#include "lodlist.h"
#include "mxgeometry/mxgeometry3d.h"
#include "mxstl/stlcompat.h"
#include "realtime/realtime.h"
/*
* A simple bounding box object with Min and Max accessor methods.