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https://github.com/Orama-Interactive/Pixelorama.git
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22 lines
790 B
Plaintext
22 lines
790 B
Plaintext
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shader_type canvas_item;
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// This shader gets applied to every single reference image.
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uniform bool monochrome = false;
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// Used because modulate does not work when monochrome is true
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uniform vec4 monchrome_color : source_color;
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// Clamp the color by using the greyscale of the image to identify the brightness of each pixel
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uniform float clamping : hint_range(0.0, 1.0, 0.01) = 0.0;
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void fragment() {
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// The original color
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vec4 color = texture(TEXTURE, UV);
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// Get the greyscale based on the brightest channel
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float greyscale = max(max(color.r, color.g), color.b);
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// Dont Use Alpha Channel past this statement!
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if (greyscale < clamping) COLOR.a = 0.0;
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// If we want the image to be onochrome we just set that pixels rgb color.
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if (monochrome) COLOR.rgb = monchrome_color.rgb;
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}
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