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wg_engine: fix artifacts with zero length segmants on path

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Fixed cases, if path have equals neighbors points on the path
This commit is contained in:
Sergii Liebodkin 2024-10-28 09:33:13 +00:00 • committed by Hermet Park
parent a855666e41
commit 1d78835609
1 changed files with 4 additions and 0 deletions
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4
src/renderer/wg_engine/tvgWgGeometry.h
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@ -321,6 +321,7 @@ struct WgVertexBufferInd
void appendLine(const Point& v0, const Point& v1, float dist, float halfWidth)
{
if(tvg::zero(dist)) return;
Point sub = v1 - v0;
Point nrm = { +sub.y / dist * halfWidth, -sub.x / dist * halfWidth };
appendQuad(v0 - nrm, v0 + nrm, v1 - nrm, v1 + nrm);
@ -328,6 +329,7 @@ struct WgVertexBufferInd
void appendBevel(const Point& v0, const Point& v1, const Point& v2, float dist1, float dist2, float halfWidth)
{
if(tvg::zero(dist1) || tvg::zero(dist2)) return;
Point sub1 = v1 - v0;
Point sub2 = v2 - v1;
Point nrm1 { +sub1.y / dist1 * halfWidth, -sub1.x / dist1 * halfWidth };
@ -337,6 +339,7 @@ struct WgVertexBufferInd
void appendMiter(const Point& v0, const Point& v1, const Point& v2, float dist1, float dist2, float halfWidth, float miterLimit)
{
if(tvg::zero(dist1) || tvg::zero(dist2)) return;
auto sub1 = v1 - v0;
auto sub2 = v2 - v1;
auto nrm1 = Point{+sub1.y / dist1, -sub1.x / dist1};
@ -360,6 +363,7 @@ struct WgVertexBufferInd
void appendSquare(Point v0, Point v1, float dist, float halfWidth)
{
if(tvg::zero(dist)) return;
Point sub = v1 - v0;
Point offset = sub / dist * halfWidth;
Point nrm = { +offset.y, -offset.x };