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-rw-r--r--indra/llmath/llcamera.cpp275
1 files changed, 91 insertions, 184 deletions
diff --git a/indra/llmath/llcamera.cpp b/indra/llmath/llcamera.cpp
index 687c1a7d45..22ba26f99b 100644
--- a/indra/llmath/llcamera.cpp
+++ b/indra/llmath/llcamera.cpp
@@ -45,7 +45,6 @@ LLCamera::LLCamera() :
calculateFrustumPlanes();
}
-
LLCamera::LLCamera(F32 vertical_fov_rads, F32 aspect_ratio, S32 view_height_in_pixels, F32 near_plane, F32 far_plane) :
LLCoordFrame(),
mViewHeightInPixels(view_height_in_pixels),
@@ -61,6 +60,10 @@ LLCamera::LLCamera(F32 vertical_fov_rads, F32 aspect_ratio, S32 view_height_in_p
setView(vertical_fov_rads);
}
+LLCamera::~LLCamera()
+{
+
+}
// ---------------- LLCamera::getFoo() member functions ----------------
@@ -82,11 +85,11 @@ F32 LLCamera::getMaxView() const
// ---------------- LLCamera::setFoo() member functions ----------------
-void LLCamera::setUserClipPlane(LLPlane plane)
+void LLCamera::setUserClipPlane(LLPlane& plane)
{
mPlaneCount = 7;
- mAgentPlanes[6].p = plane;
- mAgentPlanes[6].mask = calcPlaneMask(plane);
+ mAgentPlanes[6] = plane;
+ mPlaneMask[6] = plane.calcPlaneMask();
}
void LLCamera::disableUserClipPlane()
@@ -158,166 +161,91 @@ size_t LLCamera::readFrustumFromBuffer(const char *buffer)
// ---------------- test methods ----------------
-S32 LLCamera::AABBInFrustum(const LLVector3 &center, const LLVector3& radius)
+S32 LLCamera::AABBInFrustum(const LLVector4a &center, const LLVector4a& radius)
{
- static const LLVector3 scaler[] = {
- LLVector3(-1,-1,-1),
- LLVector3( 1,-1,-1),
- LLVector3(-1, 1,-1),
- LLVector3( 1, 1,-1),
- LLVector3(-1,-1, 1),
- LLVector3( 1,-1, 1),
- LLVector3(-1, 1, 1),
- LLVector3( 1, 1, 1)
+ static const LLVector4a scaler[] = {
+ LLVector4a(-1,-1,-1),
+ LLVector4a( 1,-1,-1),
+ LLVector4a(-1, 1,-1),
+ LLVector4a( 1, 1,-1),
+ LLVector4a(-1,-1, 1),
+ LLVector4a( 1,-1, 1),
+ LLVector4a(-1, 1, 1),
+ LLVector4a( 1, 1, 1)
};
U8 mask = 0;
- S32 result = 2;
-
- /*if (mFrustumCornerDist > 0.f && radius.magVecSquared() > mFrustumCornerDist * mFrustumCornerDist)
- { //box is larger than frustum, check frustum quads against box planes
-
- static const LLVector3 dir[] =
- {
- LLVector3(1, 0, 0),
- LLVector3(-1, 0, 0),
- LLVector3(0, 1, 0),
- LLVector3(0, -1, 0),
- LLVector3(0, 0, 1),
- LLVector3(0, 0, -1)
- };
-
- U32 quads[] =
- {
- 0, 1, 2, 3,
- 0, 1, 5, 4,
- 2, 3, 7, 6,
- 3, 0, 7, 4,
- 1, 2, 6, 4,
- 4, 5, 6, 7
- };
-
- result = 0;
-
- BOOL total_inside = TRUE;
- for (U32 i = 0; i < 6; i++)
- {
- LLVector3 p = center + radius.scaledVec(dir[i]);
- F32 d = -p*dir[i];
-
- for (U32 j = 0; j < 6; j++)
- { //for each quad
- F32 dist = mAgentFrustum[quads[j*4+0]]*dir[i] + d;
- if (dist > 0)
- { //at least one frustum point is outside the AABB
- total_inside = FALSE;
- for (U32 k = 1; k < 4; k++)
- { //for each other point on quad
- if ( mAgentFrustum[quads[j*4+k]]*dir[i]+d <= 0.f)
- { //quad is straddling some plane of AABB
- return 1;
- }
- }
- }
- else
- {
- for (U32 k = 1; k < 4; k++)
- {
- if (mAgentFrustum[quads[j*4+k]]*dir[i]+d > 0.f)
- {
- return 1;
- }
- }
- }
- }
- }
-
- if (total_inside)
- {
- result = 1;
- }
- }
- else*/
+ bool result = false;
+ LLVector4a rscale, maxp, minp;
+ LLSimdScalar d;
+ for (U32 i = 0; i < mPlaneCount; i++)
{
- for (U32 i = 0; i < mPlaneCount; i++)
+ mask = mPlaneMask[i];
+ if (mask != 0xff)
{
- mask = mAgentPlanes[i].mask;
- if (mask == 0xff)
- {
- continue;
- }
- LLPlane p = mAgentPlanes[i].p;
- LLVector3 n = LLVector3(p);
- float d = p.mV[3];
- LLVector3 rscale = radius.scaledVec(scaler[mask]);
-
- LLVector3 minp = center - rscale;
- LLVector3 maxp = center + rscale;
-
- if (n * minp > -d)
+ const LLPlane& p(mAgentPlanes[i]);
+ p.getAt<3>(d);
+ rscale.setMul(radius, scaler[mask]);
+ minp.setSub(center, rscale);
+ d = -d;
+ if (p.dot3(minp).getF32() > d)
{
return 0;
}
-
- if (n * maxp > -d)
+
+ if(!result)
{
- result = 1;
+ maxp.setAdd(center, rscale);
+ result = (p.dot3(maxp).getF32() > d);
}
}
}
-
- return result;
+ return result?1:2;
}
-S32 LLCamera::AABBInFrustumNoFarClip(const LLVector3 &center, const LLVector3& radius)
+
+S32 LLCamera::AABBInFrustumNoFarClip(const LLVector4a& center, const LLVector4a& radius)
{
- static const LLVector3 scaler[] = {
- LLVector3(-1,-1,-1),
- LLVector3( 1,-1,-1),
- LLVector3(-1, 1,-1),
- LLVector3( 1, 1,-1),
- LLVector3(-1,-1, 1),
- LLVector3( 1,-1, 1),
- LLVector3(-1, 1, 1),
- LLVector3( 1, 1, 1)
+ static const LLVector4a scaler[] = {
+ LLVector4a(-1,-1,-1),
+ LLVector4a( 1,-1,-1),
+ LLVector4a(-1, 1,-1),
+ LLVector4a( 1, 1,-1),
+ LLVector4a(-1,-1, 1),
+ LLVector4a( 1,-1, 1),
+ LLVector4a(-1, 1, 1),
+ LLVector4a( 1, 1, 1)
};
U8 mask = 0;
- S32 result = 2;
-
+ bool result = false;
+ LLVector4a rscale, maxp, minp;
+ LLSimdScalar d;
for (U32 i = 0; i < mPlaneCount; i++)
{
- if (i == 5)
- {
- continue;
- }
-
- mask = mAgentPlanes[i].mask;
- if (mask == 0xff)
- {
- continue;
- }
- LLPlane p = mAgentPlanes[i].p;
- LLVector3 n = LLVector3(p);
- float d = p.mV[3];
- LLVector3 rscale = radius.scaledVec(scaler[mask]);
-
- LLVector3 minp = center - rscale;
- LLVector3 maxp = center + rscale;
-
- if (n * minp > -d)
+ mask = mPlaneMask[i];
+ if ((i != 5) && (mask != 0xff))
{
- return 0;
- }
-
- if (n * maxp > -d)
- {
- result = 1;
+ const LLPlane& p(mAgentPlanes[i]);
+ p.getAt<3>(d);
+ rscale.setMul(radius, scaler[mask]);
+ minp.setSub(center, rscale);
+ d = -d;
+ if (p.dot3(minp).getF32() > d)
+ {
+ return 0;
+ }
+
+ if(!result)
+ {
+ maxp.setAdd(center, rscale);
+ result = (p.dot3(maxp).getF32() > d);
+ }
}
}
- return result;
+ return result?1:2;
}
int LLCamera::sphereInFrustumQuick(const LLVector3 &sphere_center, const F32 radius)
@@ -438,28 +366,22 @@ int LLCamera::sphereInFrustumOld(const LLVector3 &sphere_center, const F32 radiu
int LLCamera::sphereInFrustum(const LLVector3 &sphere_center, const F32 radius) const
{
// Returns 1 if sphere is in frustum, 0 if not.
- int res = 2;
+ bool res = false;
for (int i = 0; i < 6; i++)
{
- if (mAgentPlanes[i].mask == 0xff)
+ if (mPlaneMask[i] != 0xff)
{
- continue;
- }
-
- float d = mAgentPlanes[i].p.dist(sphere_center);
+ float d = mAgentPlanes[i].dist(sphere_center);
- if (d > radius)
- {
- return 0;
- }
-
- if (d > -radius)
- {
- res = 1;
+ if (d > radius)
+ {
+ return 0;
+ }
+ res = res || (d > -radius);
}
}
- return res;
+ return res?1:2;
}
@@ -611,25 +533,6 @@ LLPlane planeFromPoints(LLVector3 p1, LLVector3 p2, LLVector3 p3)
return LLPlane(p1, n);
}
-U8 LLCamera::calcPlaneMask(const LLPlane& plane)
-{
- U8 mask = 0;
-
- if (plane.mV[0] >= 0)
- {
- mask |= 1;
- }
- if (plane.mV[1] >= 0)
- {
- mask |= 2;
- }
- if (plane.mV[2] >= 0)
- {
- mask |= 4;
- }
-
- return mask;
-}
void LLCamera::ignoreAgentFrustumPlane(S32 idx)
{
@@ -638,12 +541,13 @@ void LLCamera::ignoreAgentFrustumPlane(S32 idx)
return;
}
- mAgentPlanes[idx].mask = 0xff;
- mAgentPlanes[idx].p.clearVec();
+ mPlaneMask[idx] = 0xff;
+ mAgentPlanes[idx].clear();
}
void LLCamera::calcAgentFrustumPlanes(LLVector3* frust)
{
+
for (int i = 0; i < 8; i++)
{
mAgentFrustum[i] = frust[i];
@@ -656,27 +560,27 @@ void LLCamera::calcAgentFrustumPlanes(LLVector3* frust)
//order of planes is important, keep most likely to fail in the front of the list
//near - frust[0], frust[1], frust[2]
- mAgentPlanes[2].p = planeFromPoints(frust[0], frust[1], frust[2]);
+ mAgentPlanes[2] = planeFromPoints(frust[0], frust[1], frust[2]);
//far
- mAgentPlanes[5].p = planeFromPoints(frust[5], frust[4], frust[6]);
+ mAgentPlanes[5] = planeFromPoints(frust[5], frust[4], frust[6]);
//left
- mAgentPlanes[0].p = planeFromPoints(frust[4], frust[0], frust[7]);
+ mAgentPlanes[0] = planeFromPoints(frust[4], frust[0], frust[7]);
//right
- mAgentPlanes[1].p = planeFromPoints(frust[1], frust[5], frust[6]);
+ mAgentPlanes[1] = planeFromPoints(frust[1], frust[5], frust[6]);
//top
- mAgentPlanes[4].p = planeFromPoints(frust[3], frust[2], frust[6]);
+ mAgentPlanes[4] = planeFromPoints(frust[3], frust[2], frust[6]);
//bottom
- mAgentPlanes[3].p = planeFromPoints(frust[1], frust[0], frust[4]);
+ mAgentPlanes[3] = planeFromPoints(frust[1], frust[0], frust[4]);
//cache plane octant facing mask for use in AABBInFrustum
for (U32 i = 0; i < mPlaneCount; i++)
{
- mAgentPlanes[i].mask = calcPlaneMask(mAgentPlanes[i].p);
+ mPlaneMask[i] = mAgentPlanes[i].calcPlaneMask();
}
}
@@ -730,9 +634,10 @@ void LLCamera::calculateWorldFrustumPlanes()
F32 d;
LLVector3 center = mOrigin - mXAxis*mNearPlane;
mWorldPlanePos = center;
+ LLVector3 pnorm;
for (int p=0; p<4; p++)
{
- LLVector3 pnorm = LLVector3(mLocalPlanes[p]);
+ mLocalPlanes[p].getVector3(pnorm);
LLVector3 norm = rotateToAbsolute(pnorm);
norm.normVec();
d = -(center * norm);
@@ -742,13 +647,15 @@ void LLCamera::calculateWorldFrustumPlanes()
LLVector3 zaxis(0, 0, 1.0f);
F32 yaw = getYaw();
{
- LLVector3 tnorm = LLVector3(mLocalPlanes[PLANE_LEFT]);
+ LLVector3 tnorm;
+ mLocalPlanes[PLANE_LEFT].getVector3(tnorm);
tnorm.rotVec(yaw, zaxis);
d = -(mOrigin * tnorm);
mHorizPlanes[HORIZ_PLANE_LEFT] = LLPlane(tnorm, d);
}
{
- LLVector3 tnorm = LLVector3(mLocalPlanes[PLANE_RIGHT]);
+ LLVector3 tnorm;
+ mLocalPlanes[PLANE_RIGHT].getVector3(tnorm);
tnorm.rotVec(yaw, zaxis);
d = -(mOrigin * tnorm);
mHorizPlanes[HORIZ_PLANE_RIGHT] = LLPlane(tnorm, d);
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-07 10:21:58 +0000