SupaLidlGame/Shaders/Flash.gdshader

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shader_type canvas_item;
uniform vec4 color = vec4(1.0);
uniform float intensity : hint_range(0.0, 1.0) = 0.0;
uniform float alpha_modulate : hint_range(0.0, 1.0) = 1.0;
void fragment() {
vec4 tex = texture(TEXTURE, UV);
tex.rgb = mix(tex.rgb, color.rgb, intensity);
COLOR = tex;
COLOR.a *= alpha_modulate;
}