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[rshapes] Fix auto segment rounded-corner math and rounding #5883

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Merged
raysan5 merged 1 commit into from
May 24, 2026
Merged

[rshapes] Fix auto segment rounded-corner math and rounding #5883

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12 changes: 6 additions & 6 deletions src/rshapes.c
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Original file line number Diff line number Diff line change
Expand Up @@ -361,7 +361,7 @@ void DrawCircleSector(Vector2 center, float radius, float startAngle, float endA
{
// Calculate the maximum angle between segments based on the error rate (usually 0.5f)
float th = acosf(2*powf(1 - SMOOTH_CIRCLE_ERROR_RATE/radius, 2) - 1);
segments = (int)((endAngle - startAngle)*ceilf(2*PI/th)/360);
segments = (int)ceilf((endAngle - startAngle)*(2*PI/th)/360.0f);

if (segments <= 0) segments = minSegments;
}
Expand Down Expand Up @@ -453,7 +453,7 @@ void DrawCircleSectorLines(Vector2 center, float radius, float startAngle, float
{
// Calculate the maximum angle between segments based on the error rate (usually 0.5f)
float th = acosf(2*powf(1 - SMOOTH_CIRCLE_ERROR_RATE/radius, 2) - 1);
segments = (int)((endAngle - startAngle)*ceilf(2*PI/th)/360);
segments = (int)ceilf((endAngle - startAngle)*(2*PI/th)/360.0f);

if (segments <= 0) segments = minSegments;
}
Expand Down Expand Up @@ -579,7 +579,7 @@ void DrawRing(Vector2 center, float innerRadius, float outerRadius, float startA
{
// Calculate the maximum angle between segments based on the error rate (usually 0.5f)
float th = acosf(2*powf(1 - SMOOTH_CIRCLE_ERROR_RATE/outerRadius, 2) - 1);
segments = (int)((endAngle - startAngle)*ceilf(2*PI/th)/360);
segments = (int)ceilf((endAngle - startAngle)*(2*PI/th)/360.0f);

if (segments <= 0) segments = minSegments;
}
Expand Down Expand Up @@ -670,7 +670,7 @@ void DrawRingLines(Vector2 center, float innerRadius, float outerRadius, float s
{
// Calculate the maximum angle between segments based on the error rate (usually 0.5f)
float th = acosf(2*powf(1 - SMOOTH_CIRCLE_ERROR_RATE/outerRadius, 2) - 1);
segments = (int)((endAngle - startAngle)*ceilf(2*PI/th)/360);
segments = (int)ceilf((endAngle - startAngle)*(2*PI/th)/360.0f);

if (segments <= 0) segments = minSegments;
}
Expand Down Expand Up @@ -960,7 +960,7 @@ void DrawRectangleRounded(Rectangle rec, float roundness, int segments, Color co
{
// Calculate the maximum angle between segments based on the error rate (usually 0.5f)
float th = acosf(2*powf(1 - SMOOTH_CIRCLE_ERROR_RATE/radius, 2) - 1);
segments = (int)(ceilf(2*PI/th)/2.0f);
segments = (int)ceilf((2*PI/th)/4.0f);
if (segments <= 0) segments = 4;
}

Expand Down Expand Up @@ -1195,7 +1195,7 @@ void DrawRectangleRoundedLinesEx(Rectangle rec, float roundness, int segments, f
{
// Calculate the maximum angle between segments based on the error rate (usually 0.5f)
float th = acosf(2*powf(1 - SMOOTH_CIRCLE_ERROR_RATE/radius, 2) - 1);
segments = (int)(ceilf(2*PI/th)/2.0f);
segments = (int)ceilf((2*PI/th)/4.0f);
if (segments <= 0) segments = 4;
}

Expand Down
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