Added VFEZ

VFEZ/Shaders/Effects/vfez_outline_inner.gdshaderinc

@@ -0,0 +1,40 @@
+group_uniforms outline_inner;
+uniform bool only_render_inner_outline;
+uniform vec3 outline_inner_color: source_color;
+uniform float outline_inner_thickness: hint_range(0., 5.) = 1.;
+uniform float outline_inner_alpha: hint_range(0., 1.) = 1.;
+uniform float ouline_inner_glow: hint_range(1., 10.) = 1.;
+group_uniforms;
+
+vec3 get_pixel(float offsetX, float offsetY, vec2 uv, sampler2D tex, vec2 texture_pixel_size)
+{
+	return texture(tex, (uv + vec2(offsetX * texture_pixel_size.x, offsetY * texture_pixel_size.y))).rgb;
+}
+
+
+vec4 outline_inner(vec4 color, vec2 texture_pixel_size, vec2 uv, sampler2D tex)
+{
+	vec3 innerT = abs(
+			get_pixel(0., outline_inner_thickness, uv, tex, texture_pixel_size) - 
+			get_pixel(0., - outline_inner_thickness, uv, tex, texture_pixel_size)
+	);
+	
+	innerT += abs(
+		get_pixel(outline_inner_thickness, 0., uv, tex, texture_pixel_size) - 
+		get_pixel(-outline_inner_thickness, 0., uv, tex, texture_pixel_size)
+	);
+	
+	if (only_render_inner_outline)
+	{
+		innerT *= color.a * outline_inner_alpha;
+		color.rgb = length(innerT) * outline_inner_color * ouline_inner_glow;
+		color.a = step(0.3, color.r + color.g + color.b);
+	}
+	else
+	{
+		innerT = innerT / 2.0 * color.a * outline_inner_alpha;
+		color.rgb += length(innerT) * outline_inner_color * ouline_inner_glow;
+	}
+	
+	return color;
+}