From a0caef69f5bdbfd9587a264e00c0aead3c3719ed Mon Sep 17 00:00:00 2001 From: Nathan Sweet Date: Thu, 6 Jun 2024 13:05:24 -0400 Subject: [PATCH] Improved clipping stability for colinear points. --- .../esotericsoftware/spine/utils/SkeletonClipping.java | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/utils/SkeletonClipping.java b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/utils/SkeletonClipping.java index 5cefb8c08..8f7e1e7ce 100644 --- a/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/utils/SkeletonClipping.java +++ b/spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/utils/SkeletonClipping.java @@ -302,8 +302,8 @@ public class SkeletonClipping { for (int ii = 0; ii < inputVerticesLength; ii += 2) { float inputX = inputVertices[ii], inputY = inputVertices[ii + 1]; float inputX2 = inputVertices[ii + 2], inputY2 = inputVertices[ii + 3]; - boolean side2 = deltaX * (inputY2 - edgeY2) - deltaY * (inputX2 - edgeX2) > 0; - if (deltaX * (inputY - edgeY2) - deltaY * (inputX - edgeX2) > 0) { + boolean side2 = deltaX * (inputY2 - edgeY2) > deltaY * (inputX2 - edgeX2) - 1e6f; + if (deltaX * (inputY - edgeY2) > deltaY * (inputX - edgeX2) - 1e6f) { if (side2) { // v1 inside, v2 inside output.add(inputX2); output.add(inputY2); @@ -312,7 +312,7 @@ public class SkeletonClipping { // v1 inside, v2 outside float c0 = inputY2 - inputY, c2 = inputX2 - inputX; float s = c0 * (edgeX2 - edgeX) - c2 * (edgeY2 - edgeY); - if (Math.abs(s) > 0.000001f) { + if (Math.abs(s) > 1e6f) { float ua = (c2 * (edgeY - inputY) - c0 * (edgeX - inputX)) / s; output.add(edgeX + (edgeX2 - edgeX) * ua); output.add(edgeY + (edgeY2 - edgeY) * ua); @@ -323,7 +323,7 @@ public class SkeletonClipping { } else if (side2) { // v1 outside, v2 inside float c0 = inputY2 - inputY, c2 = inputX2 - inputX; float s = c0 * (edgeX2 - edgeX) - c2 * (edgeY2 - edgeY); - if (Math.abs(s) > 0.000001f) { + if (Math.abs(s) > 1e6f) { float ua = (c2 * (edgeY - inputY) - c0 * (edgeX - inputX)) / s; output.add(edgeX + (edgeX2 - edgeX) * ua); output.add(edgeY + (edgeY2 - edgeY) * ua);