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Diffstat (limited to 'indra/llmath/llcamera.cpp')
-rwxr-xr-xindra/llmath/llcamera.cpp86
1 files changed, 44 insertions, 42 deletions
diff --git a/indra/llmath/llcamera.cpp b/indra/llmath/llcamera.cpp
index 22ba26f99b..33cf185196 100755
--- a/indra/llmath/llcamera.cpp
+++ b/indra/llmath/llcamera.cpp
@@ -42,6 +42,11 @@ LLCamera::LLCamera() :
mPlaneCount(6),
mFrustumCornerDist(0.f)
{
+ for (U32 i = 0; i < PLANE_MASK_NUM; i++)
+ {
+ mPlaneMask[i] = PLANE_MASK_NONE;
+ }
+
calculateFrustumPlanes();
}
@@ -52,6 +57,11 @@ LLCamera::LLCamera(F32 vertical_fov_rads, F32 aspect_ratio, S32 view_height_in_p
mPlaneCount(6),
mFrustumCornerDist(0.f)
{
+ for (U32 i = 0; i < PLANE_MASK_NUM; i++)
+ {
+ mPlaneMask[i] = PLANE_MASK_NONE;
+ }
+
mAspect = llclamp(aspect_ratio, MIN_ASPECT_RATIO, MAX_ASPECT_RATIO);
mNearPlane = llclamp(near_plane, MIN_NEAR_PLANE, MAX_NEAR_PLANE);
if(far_plane < 0) far_plane = DEFAULT_FAR_PLANE;
@@ -87,14 +97,14 @@ F32 LLCamera::getMaxView() const
void LLCamera::setUserClipPlane(LLPlane& plane)
{
- mPlaneCount = 7;
- mAgentPlanes[6] = plane;
- mPlaneMask[6] = plane.calcPlaneMask();
+ mPlaneCount = AGENT_PLANE_USER_CLIP_NUM;
+ mAgentPlanes[AGENT_PLANE_USER_CLIP] = plane;
+ mPlaneMask[AGENT_PLANE_USER_CLIP] = plane.calcPlaneMask();
}
void LLCamera::disableUserClipPlane()
{
- mPlaneCount = 6;
+ mPlaneCount = AGENT_PLANE_NO_USER_CLIP_NUM;
}
void LLCamera::setView(F32 vertical_fov_rads)
@@ -161,31 +171,33 @@ size_t LLCamera::readFrustumFromBuffer(const char *buffer)
// ---------------- test methods ----------------
-S32 LLCamera::AABBInFrustum(const LLVector4a &center, const LLVector4a& radius)
+static const LLVector4a sFrustumScaler[] =
{
- 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)
- };
+ 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) // 8 entries
+};
+S32 LLCamera::AABBInFrustum(const LLVector4a &center, const LLVector4a& radius)
+{
U8 mask = 0;
bool result = false;
LLVector4a rscale, maxp, minp;
LLSimdScalar d;
- for (U32 i = 0; i < mPlaneCount; i++)
+ U32 max_planes = llmin(mPlaneCount, (U32) AGENT_PLANE_USER_CLIP_NUM); // mAgentPlanes[] size is 7
+ for (U32 i = 0; i < max_planes; i++)
{
mask = mPlaneMask[i];
- if (mask != 0xff)
+ if (mask < PLANE_MASK_NUM)
{
const LLPlane& p(mAgentPlanes[i]);
p.getAt<3>(d);
- rscale.setMul(radius, scaler[mask]);
+ rscale.setMul(radius, sFrustumScaler[mask]);
minp.setSub(center, rscale);
d = -d;
if (p.dot3(minp).getF32() > d)
@@ -207,29 +219,19 @@ S32 LLCamera::AABBInFrustum(const LLVector4a &center, const LLVector4a& radius)
S32 LLCamera::AABBInFrustumNoFarClip(const LLVector4a& center, const LLVector4a& radius)
{
- 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;
bool result = false;
LLVector4a rscale, maxp, minp;
LLSimdScalar d;
- for (U32 i = 0; i < mPlaneCount; i++)
+ U32 max_planes = llmin(mPlaneCount, (U32) AGENT_PLANE_USER_CLIP_NUM); // mAgentPlanes[] size is 7
+ for (U32 i = 0; i < max_planes; i++)
{
mask = mPlaneMask[i];
- if ((i != 5) && (mask != 0xff))
+ if ((i != 5) && (mask < PLANE_MASK_NUM))
{
const LLPlane& p(mAgentPlanes[i]);
p.getAt<3>(d);
- rscale.setMul(radius, scaler[mask]);
+ rscale.setMul(radius, sFrustumScaler[mask]);
minp.setSub(center, rscale);
d = -d;
if (p.dot3(minp).getF32() > d)
@@ -369,7 +371,7 @@ int LLCamera::sphereInFrustum(const LLVector3 &sphere_center, const F32 radius)
bool res = false;
for (int i = 0; i < 6; i++)
{
- if (mPlaneMask[i] != 0xff)
+ if (mPlaneMask[i] != PLANE_MASK_NONE)
{
float d = mAgentPlanes[i].dist(sphere_center);
@@ -541,14 +543,14 @@ void LLCamera::ignoreAgentFrustumPlane(S32 idx)
return;
}
- mPlaneMask[idx] = 0xff;
+ mPlaneMask[idx] = PLANE_MASK_NONE;
mAgentPlanes[idx].clear();
}
void LLCamera::calcAgentFrustumPlanes(LLVector3* frust)
{
- for (int i = 0; i < 8; i++)
+ for (int i = 0; i < AGENT_FRUSTRUM_NUM; i++)
{
mAgentFrustum[i] = frust[i];
}
@@ -560,22 +562,22 @@ 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] = planeFromPoints(frust[0], frust[1], frust[2]);
+ mAgentPlanes[AGENT_PLANE_NEAR] = planeFromPoints(frust[0], frust[1], frust[2]);
//far
- mAgentPlanes[5] = planeFromPoints(frust[5], frust[4], frust[6]);
+ mAgentPlanes[AGENT_PLANE_FAR] = planeFromPoints(frust[5], frust[4], frust[6]);
//left
- mAgentPlanes[0] = planeFromPoints(frust[4], frust[0], frust[7]);
+ mAgentPlanes[AGENT_PLANE_LEFT] = planeFromPoints(frust[4], frust[0], frust[7]);
//right
- mAgentPlanes[1] = planeFromPoints(frust[1], frust[5], frust[6]);
+ mAgentPlanes[AGENT_PLANE_RIGHT] = planeFromPoints(frust[1], frust[5], frust[6]);
//top
- mAgentPlanes[4] = planeFromPoints(frust[3], frust[2], frust[6]);
+ mAgentPlanes[AGENT_PLANE_TOP] = planeFromPoints(frust[3], frust[2], frust[6]);
//bottom
- mAgentPlanes[3] = planeFromPoints(frust[1], frust[0], frust[4]);
+ mAgentPlanes[AGENT_PLANE_BOTTOM] = planeFromPoints(frust[1], frust[0], frust[4]);
//cache plane octant facing mask for use in AABBInFrustum
for (U32 i = 0; i < mPlaneCount; i++)
@@ -635,7 +637,7 @@ void LLCamera::calculateWorldFrustumPlanes()
LLVector3 center = mOrigin - mXAxis*mNearPlane;
mWorldPlanePos = center;
LLVector3 pnorm;
- for (int p=0; p<4; p++)
+ for (int p = 0; p < PLANE_NUM; p++)
{
mLocalPlanes[p].getVector3(pnorm);
LLVector3 norm = rotateToAbsolute(pnorm);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-04 18:00:22 +0000