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REVIEWED: Spline cubic bezier example

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Ray
2024-06-16 10:41:47 +02:00
parent 4119b6dd66
commit 715633e0de
2 changed files with 39 additions and 28 deletions
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30
src/rshapes.c
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@@ -1759,7 +1759,8 @@ void DrawSplineBasis(const Vector2 *points, int pointCount, float thick, Color c
DrawTriangleStrip(vertices, 2*SPLINE_SEGMENT_DIVISIONS + 2, color);
}
DrawCircleV(currentPoint, thick/2.0f, color); // Draw end line circle-cap
// Cap circle drawing at the end of every segment
DrawCircleV(currentPoint, thick/2.0f, color);
}
// Draw spline: Catmull-Rom, minimum 4 points
@@ -1825,34 +1826,31 @@ void DrawSplineCatmullRom(const Vector2 *points, int pointCount, float thick, Co
DrawTriangleStrip(vertices, 2*SPLINE_SEGMENT_DIVISIONS + 2, color);
}
DrawCircleV(currentPoint, thick/2.0f, color); // Draw end line circle-cap
// Cap circle drawing at the end of every segment
DrawCircleV(currentPoint, thick/2.0f, color);
}
// Draw spline: Quadratic Bezier, minimum 3 points (1 control point): [p1, c2, p3, c4...]
void DrawSplineBezierQuadratic(const Vector2 *points, int pointCount, float thick, Color color)
{
if (pointCount < 3) return;
for (int i = 2; i < pointCount - 2; i += 2)
if (pointCount >= 3)
{
DrawCircleV(points[i], thick/2.0f, color);
}
for (int i = 0; i < pointCount - 2; i += 2)
{
DrawSplineSegmentBezierQuadratic(points[i], points[i + 1], points[i + 2], thick, color);
for (int i = 0; i < pointCount - 2; i += 2) DrawSplineSegmentBezierQuadratic(points[i], points[i + 1], points[i + 2], thick, color);
// Cap circle drawing at the end of every segment
//for (int i = 2; i < pointCount - 2; i += 2) DrawCircleV(points[i], thick/2.0f, color);
}
}
// Draw spline: Cubic Bezier, minimum 4 points (2 control points): [p1, c2, c3, p4, c5, c6...]
void DrawSplineBezierCubic(const Vector2 *points, int pointCount, float thick, Color color)
{
if (pointCount < 4) return;
for (int i = 3; i < pointCount - 3; i += 3)
if (pointCount >= 4)
{
DrawCircleV(points[i], thick/2.0f, color);
}
for (int i = 0; i < pointCount - 3; i += 3)
{
DrawSplineSegmentBezierCubic(points[i], points[i + 1], points[i + 2], points[i + 3], thick, color);
for (int i = 0; i < pointCount - 3; i += 3) DrawSplineSegmentBezierCubic(points[i], points[i + 1], points[i + 2], points[i + 3], thick, color);
// Cap circle drawing at the end of every segment
//for (int i = 3; i < pointCount - 3; i += 3) DrawCircleV(points[i], thick/2.0f, color);
}
}