Repo created

libs/shaders/GL/selection_line.fsh.glsl

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+#ifdef ENABLE_VTF
+layout (location = 0) in LOW_P vec4 v_color;
+#else
+layout (location = 1) in vec2 v_colorTexCoord;
+layout (binding = 1) uniform sampler2D u_colorTex;
+#endif
+layout (location = 2) in float v_lengthY;
+
+layout (location = 0) out vec4 v_FragColor;
+
+layout (binding = 0) uniform UBO
+{
+  mat4 u_modelView;
+  mat4 u_projection;
+  mat4 u_pivotTransform;
+  vec4 u_position;
+  vec2 u_lineParams;
+  float u_accuracy;
+  float u_zScale;
+  float u_opacity;
+  float u_azimut;
+};
+
+const float kAntialiasingThreshold = 0.92;
+
+void main()
+{
+#ifdef ENABLE_VTF
+  LOW_P vec4 color = v_color;
+#else
+  LOW_P vec4 color = texture(u_colorTex, v_colorTexCoord);
+#endif
+  color.a *= u_opacity;
+  color.a *= (1.0 - smoothstep(kAntialiasingThreshold, 1.0, abs(v_lengthY)));
+  v_FragColor = color;
+}