diff options
Diffstat (limited to 'Opcode/OPC_PlanesTriOverlap.h')
| -rw-r--r-- | Opcode/OPC_PlanesTriOverlap.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/Opcode/OPC_PlanesTriOverlap.h b/Opcode/OPC_PlanesTriOverlap.h new file mode 100644 index 0000000..7667cbc --- /dev/null +++ b/Opcode/OPC_PlanesTriOverlap.h @@ -0,0 +1,40 @@ +///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+/**
+ * Planes-triangle overlap test.
+ * \param in_clip_mask [in] bitmask for active planes
+ * \return TRUE if triangle overlap planes
+ * \warning THIS IS A CONSERVATIVE TEST !! Some triangles will be returned as intersecting, while they're not!
+ */
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+inline_ BOOL PlanesCollider::PlanesTriOverlap(udword in_clip_mask)
+{
+ // Stats
+ mNbVolumePrimTests++;
+
+ const Plane* p = mPlanes;
+ udword Mask = 1;
+
+ while(Mask<=in_clip_mask)
+ {
+ if(in_clip_mask & Mask)
+ {
+ float d0 = p->Distance(*mVP.Vertex[0]);
+ float d1 = p->Distance(*mVP.Vertex[1]);
+ float d2 = p->Distance(*mVP.Vertex[2]);
+ if(d0>0.0f && d1>0.0f && d2>0.0f) return FALSE;
+// if(!(IR(d0)&SIGN_BITMASK) && !(IR(d1)&SIGN_BITMASK) && !(IR(d2)&SIGN_BITMASK)) return FALSE;
+ }
+ Mask+=Mask;
+ p++;
+ }
+/*
+ for(udword i=0;i<6;i++)
+ {
+ float d0 = p[i].Distance(mLeafVerts[0]);
+ float d1 = p[i].Distance(mLeafVerts[1]);
+ float d2 = p[i].Distance(mLeafVerts[2]);
+ if(d0>0.0f && d1>0.0f && d2>0.0f) return false;
+ }
+*/
+ return TRUE;
+}
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