Frosted glass

A shader that creates an effect of a frosted glass surface. By default it works with a noise texture, but if a normalmap texture is used instead, it can create any glass surface type (e.g. lens).

Shader code

shader_type spatial;

uniform float distortion_size = 0.4;
uniform sampler2D glass;

void fragment() {
	vec2 d = texture(glass, UV).xy - vec2(0.5);
	ALBEDO = texture(SCREEN_TEXTURE, SCREEN_UV + d * distortion_size).rgb;
}

Tags