Holograma

#version 300 es// Fresnel → Hologram, web GLSL (GLSL ES 3.00). From Creative Center, MIT license.precision highp float;uniform float u_time;uniform vec2 u_resolution; // this pass's output size in pixelsuniform vec3 p_color; // Color: vec3(0.3, 0.85, 1.0), sRGB; upload it decoded to linearuniform float p_power; // Rim power: 2.5 (0.5 to 8.0)uniform float p_fill; // Body glow: 0.02 (0.0 to 0.5)uniform float p_density; // Lines per unit: 12.0 (1.0 to 40.0)uniform float p_speed; // Line speed: 0.6 (-3.0 to 3.0)uniform float p_lineStrength; // Line brightness: 0.35 (0.0 to 1.5)in vec2 v_uv;in vec3 v_position;in vec3 v_normal;in vec3 v_view;out vec4 fragColor;struct Inputs {	vec2 uv;	vec3 position;	vec3 normal;	vec3 view;	float time;	vec2 fragCoord;	vec2 resolution;};vec3 u_toSrgb(vec3 c) {	return mix(c * 12.92, 1.055 * pow(c, vec3(1.0 / 2.4)) - 0.055, step(0.0031308, c));}vec4 effect(Inputs i) {	// With culling off the back faces draw too, and their normals point away from the camera: abs() gives them the	// same rim as the front, so the far side of the shell glows through.	float facing = abs(dot(i.normal, i.view));	float rim = pow(1.0 - facing, p_power);	// World height instead of uv: the lines stay level and evenly spaced whatever the mesh's unwrap looks like.	float band = fract(i.position.y * p_density - i.time * p_speed);	float lines = 1.0 - smoothstep(0.0, 0.15, abs(band - 0.5));	vec3 emitted = p_color * (rim + p_fill + p_lineStrength * lines);	return vec4(emitted, 1.0);}void main() {	Inputs i;	i.uv = v_uv;	i.position = v_position;	// Interpolation shortens the vectors between vertices	i.normal = normalize(v_normal);	i.view = normalize(v_view);	i.time = u_time;	i.fragCoord = gl_FragCoord.xy;	i.resolution = u_resolution;	vec4 frag_out = effect(i);	// The output is sRGB: clamped and encoded once, here, with no tone mapping	// Additive light over a transparent target: premultiplied, as bright as its alpha, so dark adds nothing	vec3 frag_light = u_toSrgb(clamp(frag_out.rgb, 0.0, 1.0)) * frag_out.a;	fragColor = vec4(frag_light, max(max(frag_light.r, frag_light.g), frag_light.b));}

// Fresnel → Hologram, Godot 4. From Creative Center, MIT license.shader_type spatial;// Emission: a black base color, no specular or ambient light, and the effect as EMISSION, which glow catchesrender_mode specular_disabled, ambient_light_disabled, blend_add, cull_disabled;uniform vec3 color : source_color = vec3(0.3, 0.85, 1.0);uniform float power : hint_range(0.5, 8.0, 0.1) = 2.5;uniform float fill : hint_range(0.0, 0.5, 0.01) = 0.02;uniform float density : hint_range(1.0, 40.0, 0.5) = 12.0;uniform float speed : hint_range(-3.0, 3.0, 0.05) = 0.6;uniform float lineStrength : hint_range(0.0, 1.5, 0.05) = 0.35;struct Inputs {	vec2 uv;	vec3 position;	vec3 normal;	vec3 view;	float time;	vec2 fragCoord;	vec2 resolution;};vec4 effect(Inputs i) {	// With culling off the back faces draw too, and their normals point away from the camera: abs() gives them the	// same rim as the front, so the far side of the shell glows through.	float facing = abs(dot(i.normal, i.view));	float rim = pow(1.0 - facing, power);	// World height instead of uv: the lines stay level and evenly spaced whatever the mesh's unwrap looks like.	float band = fract(i.position.y * density - i.time * speed);	float lines = 1.0 - smoothstep(0.0, 0.15, abs(band - 0.5));	vec3 emitted = color * (rim + fill + lineStrength * lines);	return vec4(emitted, 1.0);}void fragment() {	Inputs i;	// Godot's UV starts at the top-left; the effect expects GLSL's bottom-left	i.uv = vec2(UV.x, 1.0 - UV.y);	// VERTEX, NORMAL and VIEW are in view space here; the effect works in world space	i.position = (INV_VIEW_MATRIX * vec4(VERTEX, 1.0)).xyz;	i.normal = normalize((INV_VIEW_MATRIX * vec4(NORMAL, 0.0)).xyz);	i.view = normalize((INV_VIEW_MATRIX * vec4(VIEW, 0.0)).xyz);	i.time = TIME;	// FRAGCOORD's origin is the top-left too	i.resolution = VIEWPORT_SIZE;	i.fragCoord = vec2(FRAGCOORD.x, i.resolution.y - FRAGCOORD.y);	vec4 frag_out = effect(i);	ALBEDO = vec3(0.0);	EMISSION = frag_out.rgb;	ALPHA = frag_out.a;}