21 lines
369 B
GLSL
21 lines
369 B
GLSL
shader_type canvas_item;
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uniform float min_value = -1;
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uniform float max_value = 1;
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void fragment() {
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// Get the color.
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vec4 color = texture(TEXTURE, UV);
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// Compare the value.
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float gray = color.x;
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if (gray < min_value) {
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color = vec4(0, 0, 0, 1);
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} else if (gray > max_value) {
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color = vec4(1, 1, 1, 1);
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}
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// Write back the color.
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COLOR = color;
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}
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