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28 lines
716 B
28 lines
716 B
shader_type spatial;
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render_mode unshaded;
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uniform sampler2D gradient: hint_albedo;
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uniform float fog_intensity: hint_range(0.0, 1.0);
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uniform float fog_amount: hint_range(0.0, 1.0);
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void vertex() {
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POSITION = vec4(VERTEX, 1.0);
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}
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void fragment() {
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vec4 original = texture(SCREEN_TEXTURE, SCREEN_UV);
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float depth = texture(DEPTH_TEXTURE, SCREEN_UV).x;
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vec3 ndc= vec3(SCREEN_UV, depth) * 2.0 - 1.0;
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vec4 view = INV_PROJECTION_MATRIX* vec4(ndc, 1.0);
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view.xyz /= view.w;
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depth = -view.z;
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float fog = depth * fog_amount;
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vec4 fog_color = texture(gradient, vec2(fog, 0.0));
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if (depth > 1.0)
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ALBEDO = mix(original.rgb, fog_color.rgb, fog_color.a * fog_intensity);
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else
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ALBEDO = fog_color.rgb;
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}
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