Dylan Sarrazyn
22 lines
764 B
Plaintext
22 lines
764 B
Plaintext
shader_type canvas_item;
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uniform sampler2D dissolve_texture;
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uniform vec4 burn_color : source_color = vec4(0.0, 1.0, 1.0, 1.0);
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uniform float burn_size = 0.1;
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uniform float dissolve_amount : hint_range(0, 1) = 0.0;
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uniform float emission_amount = 1.0;
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void fragment() {
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vec4 out_color = texture(TEXTURE, UV);
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float dissolve = dissolve_amount * (1.0 + 2.0 * burn_size) - burn_size;
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float sample = texture(dissolve_texture, UV).r;
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float emission_value = 1.0 - smoothstep(dissolve, dissolve + burn_size, sample);
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vec3 emission = burn_color.rgb * emission_value * emission_amount;
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COLOR = vec4(max(out_color.rgb, emission), smoothstep(dissolve - burn_size, dissolve, sample) * out_color.a);
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COLOR.rgb = clamp(COLOR.rgb / COLOR.a, vec3(0.0), vec3(1.0));
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}
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