first commit

project/fm_viewer/fav/shaders/dual.fsh

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+uniform sampler2D u_Texture0;
+uniform sampler2D u_Texture1;
+uniform sampler2D u_Texture2;
+
+// https://gist.github.com/dinhnhat0401/12910a5fee2e380051c55e5db752b279
+
+varying vec2 v_TexCoords0;
+varying vec2 v_TexCoords1;
+varying vec2 v_TexCoords2;
+
+#define v_TexCoords1 v_TexCoords0
+#define v_TexCoords2 v_TexCoords0
+#define v_TexCoords3 v_TexCoords0
+
+uniform float u_opacity;
+uniform mat4 u_colorMatrix;
+
+// DEFISH
+float PI = 3.14159265358979;
+float _THETA_S_Y_SCALE = 640.0/720.0;//(1080.0 / 1920.0);
+
+float radius    = 1.0;
+//uniform vec4 uvOffset;
+//uniform vec2 radiusOffset;
+uniform mat4 tune360;   // [0] = left [wzr], [1] right [yxr]
+uniform int resolution;     // 0:FHD, 1:HD, 2:SD
+
+void main(void)
+{
+    vec2 st = v_TexCoords0.st;
+    bool front = (tune360[0][0] > 0.5);
+
+    vec2 fc;
+    if (front)
+    {
+        fc = vec2(st.x,min(st.y*0.5,0.499));    // 이거 왜하는거지???
+    }
+    else
+    {
+        fc = vec2(st.x,0.5001+st.y*0.5);
+    }
+
+    // CLIP LEFT 1PX
+    if(resolution == 2)
+    {
+        //fc.x = clamp(fc.x,0.0,0.90);
+        //gl_FragColor = vec4(1.0,0.0,0.0,1.0);
+        //return;
+    }
+
+    gl_FragColor = clamp(u_colorMatrix
+                             * vec4(texture2D(u_Texture0, fc).r,
+                                    texture2D(u_Texture1, fc).r,
+                                    texture2D(u_Texture2, fc).r,
+                                    1.0), 0.0, 1.0);
+}