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//
// Generated by dtk
// Translation Unit: J3DUClipper.cpp
//
#include "JSystem/JSystem.h" // IWYU pragma: keep
#include "JSystem/J3DU/J3DUClipper.h"
#include "JSystem/J3DGraphAnimator/J3DModel.h"
#include "JSystem/J3DGraphAnimator/J3DModelData.h"
#include "math.h"
#include "weak_bss_3569.h" // IWYU pragma: keep
static const f32 Deg2Rad = (M_PI / 180.0f); // 0.017453292f
/* 802566B8-802566CC .text init__11J3DUClipperFv */
void J3DUClipper::init() {
setNear(1.0f);
setFar(100000.0f);
}
static inline void J3DVecCrossProduct(Vec* pA, Vec* pB, Vec *dst) {
dst->x = pA->y * pB->z - pA->z * pB->y;
dst->y = pA->z * pB->x - pA->x * pB->z;
dst->z = pA->x * pB->y - pA->y * pB->x;
}
/* 802566CC-80256888 .text calcViewFrustum__11J3DUClipperFv */
void J3DUClipper::calcViewFrustum() {
f32 tanFovY = tan(mFovY * 0.5f * Deg2Rad);
f32 nearY = mNear * tanFovY;
f32 nearX = mAspect * nearY;
Vec corner0 = { -nearX, -nearY, -mNear };
Vec corner1 = { -nearX, nearY, -mNear };
Vec corner2 = { nearX, nearY, -mNear };
Vec corner3 = { nearX, -nearY, -mNear };
J3DVecCrossProduct(&corner1, &corner0, &mPlane[0]);
J3DVecCrossProduct(&corner2, &corner1, &mPlane[1]);
J3DVecCrossProduct(&corner3, &corner2, &mPlane[2]);
J3DVecCrossProduct(&corner0, &corner3, &mPlane[3]);
VECNormalize(&mPlane[0], &mPlane[0]);
VECNormalize(&mPlane[1], &mPlane[1]);
VECNormalize(&mPlane[2], &mPlane[2]);
VECNormalize(&mPlane[3], &mPlane[3]);
}
/* 80256888-802569D0 .text clip__11J3DUClipperFPA4_Cf3Vecf */
BOOL J3DUClipper::clip(const Mtx mtx, Vec pos, float radius) {
Vec p;
MTXMultVec(mtx, &pos, &p);
if (-p.z < (mNear - radius))
return TRUE;
if (-p.z > mFar + radius)
return TRUE;
if (p.x * mPlane[0].x + p.y * mPlane[0].y + p.z * mPlane[0].z > radius)
return TRUE;
if (p.x * mPlane[1].x + p.y * mPlane[1].y + p.z * mPlane[1].z > radius)
return TRUE;
if (p.x * mPlane[2].x + p.y * mPlane[2].y + p.z * mPlane[2].z > radius)
return TRUE;
if (p.x * mPlane[3].x + p.y * mPlane[3].y + p.z * mPlane[3].z > radius)
return TRUE;
return FALSE;
}
/* 802569D0-80256CB8 .text clip__11J3DUClipperFPA4_CfP3VecP3Vec */
BOOL J3DUClipper::clip(const Mtx mtx, Vec* pMin, Vec* pMax) {
s32 clip[6];
for (u32 i = 0; i < ARRAY_SIZE(clip); i++)
clip[i] = 0;
Vec corner[8];
corner[0].x = pMax->x;
corner[0].y = pMax->y;
corner[0].z = pMin->z;
corner[1].x = pMax->x;
corner[1].y = pMax->y;
corner[1].z = pMax->z;
corner[2].x = pMin->x;
corner[2].y = pMax->y;
corner[2].z = pMax->z;
corner[3].x = pMin->x;
corner[3].y = pMax->y;
corner[3].z = pMin->z;
corner[4].x = pMax->x;
corner[4].y = pMin->y;
corner[4].z = pMin->z;
corner[5].x = pMax->x;
corner[5].y = pMin->y;
corner[5].z = pMax->z;
corner[6].x = pMin->x;
corner[6].y = pMin->y;
corner[6].z = pMax->z;
corner[7].x = pMin->x;
corner[7].y = pMin->y;
corner[7].z = pMin->z;
for (u32 i = 0; i < ARRAY_SIZE(corner); i++) {
Vec p;
MTXMultVec(mtx, &corner[i], &p);
s32 any = false;
if (-p.z < mNear)
clip[4]++, any++;
if (-p.z > mFar)
clip[5]++, any++;
if (p.x * mPlane[0].x + p.y * mPlane[0].y + p.z * mPlane[0].z > 0.0f)
clip[0]++, any++;
if (p.x * mPlane[1].x + p.y * mPlane[1].y + p.z * mPlane[1].z > 0.0f)
clip[1]++, any++;
if (p.x * mPlane[2].x + p.y * mPlane[2].y + p.z * mPlane[2].z > 0.0f)
clip[2]++, any++;
if (p.x * mPlane[3].x + p.y * mPlane[3].y + p.z * mPlane[3].z > 0.0f)
clip[3]++, any++;
if (!any)
return FALSE;
}
if (clip[0] == 8)
return TRUE;
if (clip[2] == 8)
return TRUE;
if (clip[1] == 8)
return TRUE;
if (clip[3] == 8)
return TRUE;
if (clip[4] == 8)
return TRUE;
if (clip[5] == 8)
return TRUE;
return FALSE;
}
/* 80256CB8-80256DBC .text clipByBox__11J3DUClipperFP8J3DModel */
u32 J3DUClipper::clipByBox(J3DModel* pModel) {
u32 hideJointNum = 0;
J3DModelData * pModelData = pModel->getModelData();
for (u16 i = 0; i < pModelData->getJointNum(); i++) {
J3DJoint * pJoint = pModelData->getJointNodePointer(i);
if (pJoint->getKind() == 0) {
Mtx mtx;
MTXConcat(j3dSys.getViewMtx(), pModel->getAnmMtx(i), mtx);
BOOL ret = clip(mtx, pJoint->getMax(), pJoint->getMin());
J3DMaterial * pMaterial = pModelData->getJointNodePointer(i)->getMesh();
if (ret) {
for (; pMaterial != NULL; pMaterial = pMaterial->getNext()) {
pMaterial->getShape()->hide();
hideJointNum++;
}
} else {
for (; pMaterial != NULL; pMaterial = pMaterial->getNext())
pMaterial->getShape()->show();
}
}
}
return hideJointNum;
}
// Needed for the .rodata section to match.
static const char* const dummy4 = " J3DUClipper::mFovy = %f";
static const char* const dummy5 = " J3DUClipper::mAspect = %f";
static const char* const dummy6 = " J3DUClipper::mNear = %f";
static const char* const dummy7 = " J3DUClipper::mFar = %f";
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