Improved jumpflood

orx-jumpflood/src/main/resources/shaders/gl3/jumpflood.frag

@@ -1,39 +1,39 @@
-#version 330 core
-in vec2 v_texCoord0;
-
-uniform sampler2D tex0;
-uniform int maxSteps;
-uniform int step;
-
-out vec4 o_color;
-void main() {
-
-    float stepwidth = 1.0 / pow(2.0, step+1);
-
-    float bestDistance = 9999.0;
-    vec2 bestCoord = vec2(-1.0);
-    vec2 bestColor = vec2(-1.0);
-
-    vec2 is = vec2(1.0) / textureSize(tex0, 0);
-
-    float found = 0.0;
-    for (int y = -1; y <= 1; ++y) {
-        for (int x = -1; x <= 1; ++x) {
-            vec2 sampleCoord = v_texCoord0 + vec2(stepwidth) * vec2(x,y);
-            vec4 data = texture( tex0, sampleCoord);
-            vec2 seedCoord = data.xy;
-            vec2 seedColor = data.zw;
-            float dist = length(seedCoord - v_texCoord0);
-            if ((seedCoord.x >= 0.0 || seedCoord.y >= 0.0) && dist < bestDistance)
-            {
-                found = 1.0;
-                bestDistance = dist;
-                bestCoord = seedCoord;
-                bestColor = seedColor;
-            }
-        }
-    }
-
-    o_color = vec4(bestCoord, found, 1.0);
-
+#version 330 core
+in vec2 v_texCoord0;
+
+uniform sampler2D tex0;
+uniform int maxSteps;
+uniform int step;
+
+out vec4 o_color;
+void main() {
+
+    float stepwidth = 1.0 / pow(2.0, step+1);
+
+    float bestDistance = 9999.0;
+    vec2 bestCoord = vec2(-1.0);
+    vec2 bestColor = vec2(-1.0);
+
+    vec2 is = vec2(1.0) / textureSize(tex0, 0);
+
+    float found = 0.0;
+    for (int y = -1; y <= 1; ++y) {
+        for (int x = -1; x <= 1; ++x) {
+            vec2 sampleCoord = v_texCoord0 + vec2(stepwidth) * vec2(x,y);
+            vec4 data = texture( tex0, sampleCoord);
+            vec2 seedCoord = data.xy;
+            vec2 seedColor = data.zw;
+            float dist = length(seedCoord - v_texCoord0);
+            if ((seedCoord.x >= 0.0 || seedCoord.y >= 0.0) && dist < bestDistance)
+            {
+                found = 1.0;
+                bestDistance = dist;
+                bestCoord = seedCoord;
+                bestColor = seedColor;
+            }
+        }
+    }
+
+    o_color = vec4(bestCoord, bestColor.r, 1.0);
+
 }