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ezEngine Release 26.3
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ezEngine Release 26.3
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Describes a spline consisting of cubic Bezier curves segments. Each control point defines the position, rotation, and scale at that point. The parameter fT to evaluate the spline is a combination of the control point index and the zero to one parameter in the fractional part to interpolate within that segment. More...
#include <Spline.h>
Classes | |
| struct | ControlPoint |
Public Member Functions | |
| ezResult | Serialize (ezStreamWriter &ref_writer) const |
| ezResult | Deserialize (ezStreamReader &ref_reader) |
| ezUInt32 | GetNumControlPoints () const |
| ezUInt32 | GetNumSegments () const |
| void | CalculateUpDirAndAutoTangents (const ezSimdVec4f &vGlobalUpDir=ezSimdVec4f(0, 0, 1), const ezSimdVec4f &vGlobalForwardDir=ezSimdVec4f(1, 0, 0)) |
| Calculates tangents for all control points with a tangent mode other than 'Custom'. | |
| ezSimdVec4f | EvaluatePosition (float fT) const |
| Returns the position of the spline at the given parameter fT. | |
| ezSimdVec4f | EvaluatePosition (ezUInt32 uiCp0, const ezSimdFloat &fT) const |
| ezSimdVec4f | EvaluateDerivative (float fT) const |
| Returns the derivative, aka the tangent of the spline at the given parameter fT. This also equals to the unnormalized forward direction. | |
| ezSimdVec4f | EvaluateDerivative (ezUInt32 uiCp0, const ezSimdFloat &fT) const |
| ezSimdVec4f | EvaluateUpDirection (float fT) const |
| Returns the up direction of the spline at the given parameter fT. | |
| ezSimdVec4f | EvaluateScale (float fT) const |
| Returns the scale of the spline at the given parameter fT. | |
| ezSimdTransform | EvaluateTransform (float fT) const |
| Returns the full transform (consisting of position, scale, and orientation) of the spline at the given parameter fT. | |
| ezResult | CalculateSegmentBounds (ezUInt32 uiSegmentIndex, ezSimdBBoxSphere &out_bounds) const |
| Calculates the bounding volume of a single segment of the spline. | |
| ezResult | CalculateBounds (ezSimdBBoxSphere &out_bounds) const |
| Calculates the bounding volume of the entire spline. | |
| ezSimdVec4f | FindClosestPointOnSegment (ezUInt32 uiSegmentIndex, const ezSimdVec4f &vPoint, float &out_fT, float &out_fDistanceSquared, float fMaxError=0.1f) const |
| Finds the closest point on a single segment of the spline to the given point. Returns the position on the spline, the parameter fT, and the squared distance. | |
| ezSimdVec4f | FindClosestPoint (const ezSimdVec4f &vPoint, float &out_fT, float &out_fDistanceSquared, float fMaxError=0.1f) const |
| Finds the closest point on the entire spline to the given point. Returns the position on the spline, the parameter fT, and the squared distance. | |
Public Attributes | |
| ezDynamicArray< ControlPoint, ezAlignedAllocatorWrapper > | m_ControlPoints |
| bool | m_bClosed = false |
| ezUInt32 | m_uiChangeCounter = 0 |
Describes a spline consisting of cubic Bezier curves segments. Each control point defines the position, rotation, and scale at that point. The parameter fT to evaluate the spline is a combination of the control point index and the zero to one parameter in the fractional part to interpolate within that segment.
1.9.8