From: Jean-Philippe Bruyère <jp_bruyere@hotmail.com>
Date: Sat, 20 Nov 2021 06:46:37 +0000 (+0100)
Subject: _get_arc_steps = asinf (1.0f / radius) * 1.5f * sqrtf(radius)
X-Git-Tag: v0.2.0~56
X-Git-Url: https://git.osiis.dedyn.io/?a=commitdiff_plain;h=7b1d631f64770b0a67cf9f3636c0fa78aa771ed9;p=jp%2Fvkvg.git

_get_arc_steps = asinf (1.0f / radius) * 1.5f * sqrtf(radius)
---

diff --git a/src/vkvg_context_internal.c b/src/vkvg_context_internal.c
index e182a24..b813944 100644
--- a/src/vkvg_context_internal.c
+++ b/src/vkvg_context_internal.c
@@ -223,9 +223,9 @@ float _normalizeAngle(float a)
     return res;
 }
 float _get_arc_step (VkvgContext ctx, float radius) {
-	float dx = 1, dy = 1;
-	vkvg_matrix_transform_distance (&ctx->pushConsts.mat, &dx, &dy);
-	return M_PIF/sqrtf(radius)*0.35f/fmaxf(dx,dy);
+	if (radius < 3.0f)
+		return asinf (1.0f / radius) * 0.25f;
+	return asinf (1.0f / radius) * 1.5f * sqrtf(radius);
 }
 void _create_gradient_buff (VkvgContext ctx){
 	vkvg_buffer_create (ctx->pSurf->dev,