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Add utility to make spline curve linear or smooth

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This commit is contained in:
Wojtek Figat
2021-01-26 09:32:41 +01:00
parent fe78fa7575
commit 023cdced0a
5 changed files with 206 additions and 20 deletions
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14
Source/Engine/Debug/DebugDraw.cpp
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@@ -650,16 +650,6 @@ void DebugDraw::DrawLines(const Span<Vector3>& lines, const Matrix& transform, c
}
}
static Vector3 GetPoint(Vector3 p0, Vector3 p1, Vector3 p2, Vector3 p3, float t)
{
const float oneMinusT = 1.0f - t;
return
oneMinusT * oneMinusT * oneMinusT * p0 +
3.0f * oneMinusT * oneMinusT * t * p1 +
3.0f * oneMinusT * t * t * p2 +
t * t * t * p3;
}
void DebugDraw::DrawBezier(const Vector3& p1, const Vector3& p2, const Vector3& p3, const Vector3& p4, const Color& color, float duration, bool depthTest)
{
// Create draw call entry
@@ -676,13 +666,13 @@ void DebugDraw::DrawBezier(const Vector3& p1, const Vector3& p2, const Vector3&
const Vector3 d3 = p4 - p3;
const float len = d1.Length() + d2.Length() + d3.Length();
const int32 segmentCount = Math::Clamp(Math::CeilToInt(len * 0.05f), 1, 100);
const float segmentCountInv = 1.0f / segmentCount;
const float segmentCountInv = 1.0f / (float)segmentCount;
list->EnsureCapacity(list->Count() + segmentCount + 2);
// Draw segmented curve
for (int32 i = 0; i <= segmentCount; i++)
{
const float t = i * segmentCountInv;
const float t = (float)i * segmentCountInv;
AnimationUtils::Bezier(p1, p2, p3, p4, t, l.End);
list->Add(l);
l.Start = l.End;