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other/FrameworkShadersES/FragShaderSrcSetupMask.frag

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+#version 100
+precision mediump float;
+
+varying vec2 v_texCoord;
+varying vec4 v_myPos;
+uniform sampler2D s_texture0;
+uniform vec4 u_channelFlag;
+uniform vec4 u_baseColor;
+
+void main()
+{
+    float isInside =
+    step(u_baseColor.x, v_myPos.x / v_myPos.w)
+    * step(u_baseColor.y, v_myPos.y / v_myPos.w)
+    * step(v_myPos.x / v_myPos.w, u_baseColor.z)
+    * step(v_myPos.y / v_myPos.w, u_baseColor.w);
+    gl_FragColor = u_channelFlag * texture2D(s_texture0, v_texCoord).a * isInside;
+}