ProjectArcade

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// Red/Blue glasses stereo, also known as anaglyph.
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//
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// NOTE: Will only be compiled for Vulkan so doesn't follow all the usual conventions.
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uniform sampler2DArray sampler0;
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varying vec2 v_texcoord0;
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uniform vec4 u_setting;
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void main() {
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	float saturation = u_setting.x;
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	float greenMix = u_setting.y;
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	// To be adjusted. Used to desaturate colors.
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	vec3 grayDot = vec3(0.35, 0.5, 0.15);
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	// And these are the output color channels.
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	vec3 red = vec3(1.0, 0.0, 0.0);
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	vec3 blue = vec3(0.0, greenMix, 1.0);
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	vec3 left = texture(sampler0, vec3(v_texcoord0, 0.0)).xyz;
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	vec3 right = texture(sampler0, vec3(v_texcoord0, 1.0)).xyz;
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	float leftGray = dot(left, grayDot);
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	float rightGray = dot(right, grayDot);
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	vec3 leftColor = mix(vec3(leftGray), left, saturation) * red;
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	vec3 rightColor = mix(vec3(rightGray), right, saturation) * blue;
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	gl_FragColor.rgb = leftColor + rightColor;
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	gl_FragColor.a = 1.0;
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}
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