Initial work on background visualization

XIONControlPanel/Shaders/FinalRender.fsh

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+//
+//  FinalRender.fsh
+//  XIONControlPanel
+//
+//  Created by Charles Magahern on 12/29/15.
+//  Copyright © 2015 XION. All rights reserved.
+//
+
+uniform sampler2D   u_colorSampler;
+uniform sampler2D   u_blurmapSampler;
+varying vec2        v_uv;
+
+float saturate(float v)
+{
+    return clamp(v, 0.0, 1.0);
+}
+
+void main()
+{
+    vec4 color = texture2D(u_colorSampler, v_uv) + texture2D(u_blurmapSampler, v_uv);
+    float dist = length(v_uv - vec2(0.5));
+    gl_FragColor = saturate(1.0 / (8.0 * (dist + 0.1))) * color;
+}

XIONControlPanel/Shaders/FinalRender.vsh

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+//
+//  FinalRender.vsh
+//  XIONControlPanel
+//
+//  Created by Charles Magahern on 12/29/15.
+//  Copyright © 2015 XION. All rights reserved.
+//
+
+attribute vec4 a_position;
+varying vec2 v_uv;
+
+void main()
+{
+    v_uv = (a_position.xy + 1.0) * 0.5;
+    gl_Position = a_position;
+}

XIONControlPanel/Shaders/FirstPass.fsh

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+//
+//  FirstPass.fsh
+//  XIONControlPanel
+//
+//  Created by Charles Magahern on 12/29/15.
+//  Copyright © 2015 XION. All rights reserved.
+//
+
+uniform sampler2D   u_colorSampler;
+varying vec2        v_uv;
+
+void main()
+{
+    gl_FragColor = texture2D(u_colorSampler, v_uv);
+}

XIONControlPanel/Shaders/FirstPass.vsh

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+//
+//  FirstPass.vsh
+//  XIONControlPanel
+//
+//  Created by Charles Magahern on 12/29/15.
+//  Copyright © 2015 XION. All rights reserved.
+//
+
+attribute vec4  a_position;
+varying vec2    v_uv;
+
+void main()
+{
+    v_uv = (a_position.xy + 1.0) * 0.5;
+    gl_Position = a_position;
+}

XIONControlPanel/Shaders/HorizontalBlur.fsh

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+//
+//  HorizontalBlur.fsh
+//  XIONControlPanel
+//
+//  Created by Charles Magahern on 12/29/15.
+//  Copyright © 2015 XION. All rights reserved.
+//
+
+uniform sampler2D   u_colorSampler;
+varying vec2        v_uv;
+varying vec2        v_blurTexCoords[14];
+
+void main()
+{
+    gl_FragColor = vec4(0.0);
+    gl_FragColor += texture2D(u_colorSampler, v_blurTexCoords[ 0])*0.0044299121055113265;
+    gl_FragColor += texture2D(u_colorSampler, v_blurTexCoords[ 1])*0.00895781211794;
+    gl_FragColor += texture2D(u_colorSampler, v_blurTexCoords[ 2])*0.0215963866053;
+    gl_FragColor += texture2D(u_colorSampler, v_blurTexCoords[ 3])*0.0443683338718;
+    gl_FragColor += texture2D(u_colorSampler, v_blurTexCoords[ 4])*0.0776744219933;
+    gl_FragColor += texture2D(u_colorSampler, v_blurTexCoords[ 5])*0.115876621105;
+    gl_FragColor += texture2D(u_colorSampler, v_blurTexCoords[ 6])*0.147308056121;
+    gl_FragColor += texture2D(u_colorSampler, v_uv               )*0.159576912161;
+    gl_FragColor += texture2D(u_colorSampler, v_blurTexCoords[ 7])*0.147308056121;
+    gl_FragColor += texture2D(u_colorSampler, v_blurTexCoords[ 8])*0.115876621105;
+    gl_FragColor += texture2D(u_colorSampler, v_blurTexCoords[ 9])*0.0776744219933;
+    gl_FragColor += texture2D(u_colorSampler, v_blurTexCoords[10])*0.0443683338718;
+    gl_FragColor += texture2D(u_colorSampler, v_blurTexCoords[11])*0.0215963866053;
+    gl_FragColor += texture2D(u_colorSampler, v_blurTexCoords[12])*0.00895781211794;
+    gl_FragColor += texture2D(u_colorSampler, v_blurTexCoords[13])*0.0044299121055113265;
+}

XIONControlPanel/Shaders/HorizontalBlur.vsh

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+//
+//  HorizontalBlur.vsh
+//  XIONControlPanel
+//
+//  Created by Charles Magahern on 12/29/15.
+//  Copyright © 2015 XION. All rights reserved.
+//
+
+attribute vec4  a_position;
+varying vec2    v_uv;
+varying vec2    v_blurTexCoords[14];
+
+void main()
+{
+    v_uv = (a_position.xy + 1.0) * 0.5;
+    v_blurTexCoords[ 0] = v_uv + vec2(-0.028, 0.0);
+    v_blurTexCoords[ 1] = v_uv + vec2(-0.024, 0.0);
+    v_blurTexCoords[ 2] = v_uv + vec2(-0.020, 0.0);
+    v_blurTexCoords[ 3] = v_uv + vec2(-0.016, 0.0);
+    v_blurTexCoords[ 4] = v_uv + vec2(-0.012, 0.0);
+    v_blurTexCoords[ 5] = v_uv + vec2(-0.008, 0.0);
+    v_blurTexCoords[ 6] = v_uv + vec2(-0.004, 0.0);
+    v_blurTexCoords[ 7] = v_uv + vec2( 0.004, 0.0);
+    v_blurTexCoords[ 8] = v_uv + vec2( 0.008, 0.0);
+    v_blurTexCoords[ 9] = v_uv + vec2( 0.012, 0.0);
+    v_blurTexCoords[10] = v_uv + vec2( 0.016, 0.0);
+    v_blurTexCoords[11] = v_uv + vec2( 0.020, 0.0);
+    v_blurTexCoords[12] = v_uv + vec2( 0.024, 0.0);
+    v_blurTexCoords[13] = v_uv + vec2( 0.028, 0.0);
+
+    gl_Position = a_position;
+}

XIONControlPanel/Shaders/VerticalBlur.fsh

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+//
+//  VerticalBlur.fsh
+//  XIONControlPanel
+//
+//  Created by Charles Magahern on 12/29/15.
+//  Copyright © 2015 XION. All rights reserved.
+//
+
+uniform sampler2D   u_colorSampler;
+varying vec2        v_uv;
+varying vec2        v_blurTexCoords[14];
+
+void main()
+{
+    gl_FragColor = vec4(0.0);
+    gl_FragColor += texture2D(u_colorSampler, v_blurTexCoords[ 0])*0.0044299121055113265;
+    gl_FragColor += texture2D(u_colorSampler, v_blurTexCoords[ 1])*0.00895781211794;
+    gl_FragColor += texture2D(u_colorSampler, v_blurTexCoords[ 2])*0.0215963866053;
+    gl_FragColor += texture2D(u_colorSampler, v_blurTexCoords[ 3])*0.0443683338718;
+    gl_FragColor += texture2D(u_colorSampler, v_blurTexCoords[ 4])*0.0776744219933;
+    gl_FragColor += texture2D(u_colorSampler, v_blurTexCoords[ 5])*0.115876621105;
+    gl_FragColor += texture2D(u_colorSampler, v_blurTexCoords[ 6])*0.147308056121;
+    gl_FragColor += texture2D(u_colorSampler, v_uv               )*0.159576912161;
+    gl_FragColor += texture2D(u_colorSampler, v_blurTexCoords[ 7])*0.147308056121;
+    gl_FragColor += texture2D(u_colorSampler, v_blurTexCoords[ 8])*0.115876621105;
+    gl_FragColor += texture2D(u_colorSampler, v_blurTexCoords[ 9])*0.0776744219933;
+    gl_FragColor += texture2D(u_colorSampler, v_blurTexCoords[10])*0.0443683338718;
+    gl_FragColor += texture2D(u_colorSampler, v_blurTexCoords[11])*0.0215963866053;
+    gl_FragColor += texture2D(u_colorSampler, v_blurTexCoords[12])*0.00895781211794;
+    gl_FragColor += texture2D(u_colorSampler, v_blurTexCoords[13])*0.0044299121055113265;
+}

XIONControlPanel/Shaders/VerticalBlur.vsh

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+//
+//  VerticalBlur.vsh
+//  XIONControlPanel
+//
+//  Created by Charles Magahern on 12/29/15.
+//  Copyright © 2015 XION. All rights reserved.
+//
+
+attribute vec4  a_position;
+varying vec2    v_uv;
+varying vec2    v_blurTexCoords[14];
+
+void main()
+{
+    v_uv = (a_position.xy + 1.0) * 0.5;
+    v_blurTexCoords[ 0] = v_uv + vec2(0.0, -0.028);
+    v_blurTexCoords[ 1] = v_uv + vec2(0.0, -0.024);
+    v_blurTexCoords[ 2] = v_uv + vec2(0.0, -0.020);
+    v_blurTexCoords[ 3] = v_uv + vec2(0.0, -0.016);
+    v_blurTexCoords[ 4] = v_uv + vec2(0.0, -0.012);
+    v_blurTexCoords[ 5] = v_uv + vec2(0.0, -0.008);
+    v_blurTexCoords[ 6] = v_uv + vec2(0.0, -0.004);
+    v_blurTexCoords[ 7] = v_uv + vec2(0.0,  0.004);
+    v_blurTexCoords[ 8] = v_uv + vec2(0.0,  0.008);
+    v_blurTexCoords[ 9] = v_uv + vec2(0.0,  0.012);
+    v_blurTexCoords[10] = v_uv + vec2(0.0,  0.016);
+    v_blurTexCoords[11] = v_uv + vec2(0.0,  0.020);
+    v_blurTexCoords[12] = v_uv + vec2(0.0,  0.024);
+    v_blurTexCoords[13] = v_uv + vec2(0.0,  0.028);
+
+    gl_Position = a_position;
+}