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-rwxr-xr-xindra/llmath/llcamera.cpp86
-rwxr-xr-xindra/llmath/llcamera.h37
-rwxr-xr-xindra/llmath/llvolume.cpp225
3 files changed, 175 insertions, 173 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);
diff --git a/indra/llmath/llcamera.h b/indra/llmath/llcamera.h
index 0b591be622..1283cfb16b 100755
--- a/indra/llmath/llcamera.h
+++ b/indra/llmath/llcamera.h
@@ -76,26 +76,39 @@ public:
PLANE_RIGHT = 1,
PLANE_BOTTOM = 2,
PLANE_TOP = 3,
- PLANE_NUM = 4
+ PLANE_NUM = 4,
+ PLANE_MASK_NONE = 0xff // Disable this plane
};
enum {
PLANE_LEFT_MASK = (1<<PLANE_LEFT),
PLANE_RIGHT_MASK = (1<<PLANE_RIGHT),
PLANE_BOTTOM_MASK = (1<<PLANE_BOTTOM),
PLANE_TOP_MASK = (1<<PLANE_TOP),
- PLANE_ALL_MASK = 0xf
+ PLANE_ALL_MASK = 0xf,
};
enum
- {
+ { // Indexes to mAgentPlanes[] and mPlaneMask[]
AGENT_PLANE_LEFT = 0,
- AGENT_PLANE_RIGHT,
- AGENT_PLANE_NEAR,
- AGENT_PLANE_BOTTOM,
- AGENT_PLANE_TOP,
- AGENT_PLANE_FAR,
+ AGENT_PLANE_RIGHT = 1,
+ AGENT_PLANE_NEAR = 2,
+ AGENT_PLANE_BOTTOM = 3,
+ AGENT_PLANE_TOP = 4,
+ AGENT_PLANE_FAR = 5,
+ AGENT_PLANE_USER_CLIP = 6
+ };
+ enum
+ { // Sizes for mAgentPlanes[]. 7th entry is special case for user clip
+ AGENT_PLANE_NO_USER_CLIP_NUM = 6,
+ AGENT_PLANE_USER_CLIP_NUM = 7,
+ PLANE_MASK_NUM = 8 // 7 actually used, 8 is for alignment
};
+ enum
+ {
+ AGENT_FRUSTRUM_NUM = 8
+ };
+
enum {
HORIZ_PLANE_LEFT = 0,
HORIZ_PLANE_RIGHT = 1,
@@ -108,15 +121,15 @@ public:
};
private:
- LL_ALIGN_16(LLPlane mAgentPlanes[7]); //frustum planes in agent space a la gluUnproject (I'm a bastard, I know) - DaveP
- U8 mPlaneMask[8]; // 8 for alignment
+ LL_ALIGN_16(LLPlane mAgentPlanes[AGENT_PLANE_USER_CLIP_NUM]); //frustum planes in agent space a la gluUnproject (I'm a bastard, I know) - DaveP
+ U8 mPlaneMask[PLANE_MASK_NUM]; // 8 for alignment
F32 mView; // angle between top and bottom frustum planes in radians.
F32 mAspect; // width/height
S32 mViewHeightInPixels; // for ViewHeightInPixels() only
F32 mNearPlane;
F32 mFarPlane;
- LL_ALIGN_16(LLPlane mLocalPlanes[4]);
+ LL_ALIGN_16(LLPlane mLocalPlanes[PLANE_NUM]);
F32 mFixedDistance; // Always return this distance, unless < 0
LLVector3 mFrustCenter; // center of frustum and radius squared for ultra-quick exclusion test
F32 mFrustRadiusSquared;
@@ -128,7 +141,7 @@ private:
LLVector3 mWorldPlanePos; // Position of World Planes (may be offset from camera)
public:
- LLVector3 mAgentFrustum[8]; //8 corners of 6-plane frustum
+ LLVector3 mAgentFrustum[AGENT_FRUSTRUM_NUM]; //8 corners of 6-plane frustum
F32 mFrustumCornerDist; //distance to corner of frustum against far clip plane
LLPlane& getAgentPlane(U32 idx) { return mAgentPlanes[idx]; }
diff --git a/indra/llmath/llvolume.cpp b/indra/llmath/llvolume.cpp
index b90830ddd8..a030d889af 100755
--- a/indra/llmath/llvolume.cpp
+++ b/indra/llmath/llvolume.cpp
@@ -94,16 +94,6 @@ const S32 SCULPT_MIN_AREA_DETAIL = 1;
extern BOOL gDebugGL;
-void calc_tangent_from_triangle(
- LLVector4a& normal,
- LLVector4a& tangent_out,
- const LLVector4a& v1,
- const LLVector2& w1,
- const LLVector4a& v2,
- const LLVector2& w2,
- const LLVector4a& v3,
- const LLVector2& w3);
-
BOOL check_same_clock_dir( const LLVector3& pt1, const LLVector3& pt2, const LLVector3& pt3, const LLVector3& norm)
{
LLVector3 test = (pt2-pt1)%(pt3-pt2);
@@ -146,6 +136,82 @@ BOOL LLLineSegmentBoxIntersect(const F32* start, const F32* end, const F32* cent
return true;
}
+// Finds tangent vec based on three vertices with texture coordinates.
+// Fills in dummy values if the triangle has degenerate texture coordinates.
+void calc_tangent_from_triangle(
+ LLVector4a& normal,
+ LLVector4a& tangent_out,
+ const LLVector4a& v1,
+ const LLVector2& w1,
+ const LLVector4a& v2,
+ const LLVector2& w2,
+ const LLVector4a& v3,
+ const LLVector2& w3)
+{
+ const F32* v1ptr = v1.getF32ptr();
+ const F32* v2ptr = v2.getF32ptr();
+ const F32* v3ptr = v3.getF32ptr();
+
+ float x1 = v2ptr[0] - v1ptr[0];
+ float x2 = v3ptr[0] - v1ptr[0];
+ float y1 = v2ptr[1] - v1ptr[1];
+ float y2 = v3ptr[1] - v1ptr[1];
+ float z1 = v2ptr[2] - v1ptr[2];
+ float z2 = v3ptr[2] - v1ptr[2];
+
+ float s1 = w2.mV[0] - w1.mV[0];
+ float s2 = w3.mV[0] - w1.mV[0];
+ float t1 = w2.mV[1] - w1.mV[1];
+ float t2 = w3.mV[1] - w1.mV[1];
+
+ F32 rd = s1*t2-s2*t1;
+
+ float r = ((rd*rd) > FLT_EPSILON) ? 1.0F / rd : 1024.f; //some made up large ratio for division by zero
+
+ llassert(llfinite(r));
+ llassert(!llisnan(r));
+
+ LLVector4a sdir(
+ (t2 * x1 - t1 * x2) * r,
+ (t2 * y1 - t1 * y2) * r,
+ (t2 * z1 - t1 * z2) * r);
+
+ LLVector4a tdir(
+ (s1 * x2 - s2 * x1) * r,
+ (s1 * y2 - s2 * y1) * r,
+ (s1 * z2 - s2 * z1) * r);
+
+ LLVector4a n = normal;
+ LLVector4a t = sdir;
+
+ LLVector4a ncrosst;
+ ncrosst.setCross3(n,t);
+
+ // Gram-Schmidt orthogonalize
+ n.mul(n.dot3(t).getF32());
+
+ LLVector4a tsubn;
+ tsubn.setSub(t,n);
+
+ if (tsubn.dot3(tsubn).getF32() > F_APPROXIMATELY_ZERO)
+ {
+ tsubn.normalize3fast_checked();
+
+ // Calculate handedness
+ F32 handedness = ncrosst.dot3(tdir).getF32() < 0.f ? -1.f : 1.f;
+
+ tsubn.getF32ptr()[3] = handedness;
+
+ tangent_out = tsubn;
+ }
+ else
+ {
+ // degenerate, make up a value
+ //
+ tangent_out.set(0,0,1,1);
+ }
+
+}
// intersect test between triangle vert0, vert1, vert2 and a ray from orig in direction dir.
@@ -1604,7 +1670,7 @@ BOOL LLPath::generate(const LLPathParams& params, F32 detail, S32 split,
S32 sides = (S32)llfloor(llfloor((MIN_DETAIL_FACES * detail + twist_mag * 3.5f * (detail-0.5f))) * params.getRevolutions());
if (is_sculpted)
- sides = llmax(sculpt_size,1);
+ sides = llmax(sculpt_size, 1);
genNGon(params, sides);
}
@@ -2072,7 +2138,7 @@ LLVolume::LLVolume(const LLVolumeParams &params, const F32 detail, const BOOL ge
generate();
- if (mParams.getSculptID().isNull() && ((mParams.getSculptType() == LL_SCULPT_TYPE_NONE) || (mParams.getSculptType() == LL_SCULPT_TYPE_MESH)))
+ if (mParams.getSculptID().isNull() && mParams.getSculptType() == LL_SCULPT_TYPE_NONE || mParams.getSculptType() == LL_SCULPT_TYPE_MESH)
{
createVolumeFaces();
}
@@ -5289,7 +5355,6 @@ LLVolumeFace& LLVolumeFace::operator=(const LLVolumeFace& src)
if (src.mTangents)
{
allocateTangents(src.mNumVertices);
- llassert(mTangents);
LLVector4a::memcpyNonAliased16((F32*) mTangents, (F32*) src.mTangents, vert_size);
}
else
@@ -5301,7 +5366,6 @@ LLVolumeFace& LLVolumeFace::operator=(const LLVolumeFace& src)
if (src.mWeights)
{
allocateWeights(src.mNumVertices);
- llassert(mWeights);
LLVector4a::memcpyNonAliased16((F32*) mWeights, (F32*) src.mWeights, vert_size);
}
else
@@ -5317,14 +5381,14 @@ LLVolumeFace& LLVolumeFace::operator=(const LLVolumeFace& src)
LLVector4a::memcpyNonAliased16((F32*) mIndices, (F32*) src.mIndices, idx_size);
}
-
+
//delete
return *this;
}
LLVolumeFace::~LLVolumeFace()
{
- ll_aligned_free_16(mExtents);
+ ll_aligned_free_16(mExtents);
mExtents = NULL;
freeData();
@@ -5334,7 +5398,7 @@ void LLVolumeFace::freeData()
{
ll_aligned_free_16(mPositions);
mPositions = NULL;
- ll_aligned_free_16(mNormals);
+ ll_aligned_free_16( mNormals);
mNormals = NULL;
ll_aligned_free_16(mTexCoords);
mTexCoords = NULL;
@@ -6120,7 +6184,7 @@ BOOL LLVolumeFace::createUnCutCubeCap(LLVolume* volume, BOOL partial_build)
lhs.setSub(corners[1].getPosition(), corners[0].getPosition());
LLVector4a rhs;
rhs.setSub(corners[2].getPosition(), corners[1].getPosition());
- baseVert.getNormal().setCross3(lhs, rhs);
+ baseVert.getNormal().setCross3(lhs, rhs);
baseVert.getNormal().normalize3fast();
}
@@ -6366,7 +6430,7 @@ BOOL LLVolumeFace::createCap(LLVolume* volume, BOOL partial_build)
num_vertices++;
}
-
+
allocateTangents(num_vertices);
for (S32 i = 0; i < num_vertices; i++)
@@ -6719,7 +6783,7 @@ void LLVolumeFace::pushVertex(const LLVector4a& pos, const LLVector4a& norm, con
void LLVolumeFace::allocateTangents(S32 num_verts)
{
- ll_aligned_free_16(mTangents);
+ ll_aligned_free_16(mTangents);
mTangents = (LLVector4a*) ll_aligned_malloc_16(sizeof(LLVector4a)*num_verts);
}
@@ -7289,122 +7353,45 @@ void calc_binormal_from_triangle(LLVector4a& binormal,
}
}
-// Finds binormal based on three vertices with texture coordinates.
-// Fills in dummy values if the triangle has degenerate texture coordinates.
-void calc_tangent_from_triangle(
- LLVector4a& normal,
- LLVector4a& tangent_out,
- const LLVector4a& v1,
- const LLVector2& w1,
- const LLVector4a& v2,
- const LLVector2& w2,
- const LLVector4a& v3,
- const LLVector2& w3)
-{
- const F32* v1ptr = v1.getF32ptr();
- const F32* v2ptr = v2.getF32ptr();
- const F32* v3ptr = v3.getF32ptr();
-
- float x1 = v2ptr[0] - v1ptr[0];
- float x2 = v3ptr[0] - v1ptr[0];
- float y1 = v2ptr[1] - v1ptr[1];
- float y2 = v3ptr[1] - v1ptr[1];
- float z1 = v2ptr[2] - v1ptr[2];
- float z2 = v3ptr[2] - v1ptr[2];
-
- float s1 = w2.mV[0] - w1.mV[0];
- float s2 = w3.mV[0] - w1.mV[0];
- float t1 = w2.mV[1] - w1.mV[1];
- float t2 = w3.mV[1] - w1.mV[1];
-
- F32 rd = s1*t2-s2*t1;
-
- float r = ((rd*rd) > FLT_EPSILON) ? 1.0F / rd : 1024.f; //some made up large ratio for division by zero
-
- llassert(llfinite(r));
- llassert(!llisnan(r));
-
- LLVector4a sdir(
- (t2 * x1 - t1 * x2) * r,
- (t2 * y1 - t1 * y2) * r,
- (t2 * z1 - t1 * z2) * r);
-
- LLVector4a tdir(
- (s1 * x2 - s2 * x1) * r,
- (s1 * y2 - s2 * y1) * r,
- (s1 * z2 - s2 * z1) * r);
-
- LLVector4a n = normal;
- LLVector4a t = sdir;
-
- LLVector4a ncrosst;
- ncrosst.setCross3(n,t);
-
- // Gram-Schmidt orthogonalize
- n.mul(n.dot3(t).getF32());
-
- LLVector4a tsubn;
- tsubn.setSub(t,n);
-
- if (tsubn.dot3(tsubn).getF32() > F_APPROXIMATELY_ZERO)
- {
- tsubn.normalize3fast_checked();
-
- // Calculate handedness
- F32 handedness = ncrosst.dot3(tdir).getF32() < 0.f ? -1.f : 1.f;
-
- tsubn.getF32ptr()[3] = handedness;
-
- tangent_out = tsubn;
- }
- else
- {
- // degenerate, make up a value
- //
- tangent_out.set(0,0,1,1);
- }
-
-}
-
//adapted from Lengyel, Eric. “Computing Tangent Space Basis Vectors for an Arbitrary Mesh”. Terathon Software 3D Graphics Library, 2001. http://www.terathon.com/code/tangent.html
void CalculateTangentArray(U32 vertexCount, const LLVector4a *vertex, const LLVector4a *normal,
const LLVector2 *texcoord, U32 triangleCount, const U16* index_array, LLVector4a *tangent)
{
LLVector4a* tan1 = (LLVector4a*) ll_aligned_malloc_16(vertexCount*2*sizeof(LLVector4a));
- LLVector4a* tan2 = tan1 + vertexCount;
+ LLVector4a* tan2 = tan1 + vertexCount;
memset(tan1, 0, vertexCount*2*sizeof(LLVector4a));
- for (U32 a = 0; a < triangleCount; a++)
- {
- U32 i1 = *index_array++;
- U32 i2 = *index_array++;
- U32 i3 = *index_array++;
+ for (U32 a = 0; a < triangleCount; a++)
+ {
+ U32 i1 = *index_array++;
+ U32 i2 = *index_array++;
+ U32 i3 = *index_array++;
- const LLVector4a& v1 = vertex[i1];
- const LLVector4a& v2 = vertex[i2];
- const LLVector4a& v3 = vertex[i3];
+ const LLVector4a& v1 = vertex[i1];
+ const LLVector4a& v2 = vertex[i2];
+ const LLVector4a& v3 = vertex[i3];
- const LLVector2& w1 = texcoord[i1];
- const LLVector2& w2 = texcoord[i2];
- const LLVector2& w3 = texcoord[i3];
+ const LLVector2& w1 = texcoord[i1];
+ const LLVector2& w2 = texcoord[i2];
+ const LLVector2& w3 = texcoord[i3];
const F32* v1ptr = v1.getF32ptr();
const F32* v2ptr = v2.getF32ptr();
const F32* v3ptr = v3.getF32ptr();
- float x1 = v2ptr[0] - v1ptr[0];
- float x2 = v3ptr[0] - v1ptr[0];
- float y1 = v2ptr[1] - v1ptr[1];
- float y2 = v3ptr[1] - v1ptr[1];
- float z1 = v2ptr[2] - v1ptr[2];
- float z2 = v3ptr[2] - v1ptr[2];
+ float x1 = v2ptr[0] - v1ptr[0];
+ float x2 = v3ptr[0] - v1ptr[0];
+ float y1 = v2ptr[1] - v1ptr[1];
+ float y2 = v3ptr[1] - v1ptr[1];
+ float z1 = v2ptr[2] - v1ptr[2];
+ float z2 = v3ptr[2] - v1ptr[2];
- float s1 = w2.mV[0] - w1.mV[0];
- float s2 = w3.mV[0] - w1.mV[0];
- float t1 = w2.mV[1] - w1.mV[1];
- float t2 = w3.mV[1] - w1.mV[1];
+ float s1 = w2.mV[0] - w1.mV[0];
+ float s2 = w3.mV[0] - w1.mV[0];
+ float t1 = w2.mV[1] - w1.mV[1];
+ float t2 = w3.mV[1] - w1.mV[1];
F32 rd = s1*t2-s2*t1;