Plástico

#version 300 es// Specular highlights → Plastic, 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_base; // Plastic color: vec3(0.8, 0.12, 0.1), sRGB; upload it decoded to linearuniform float p_shininess; // Shininess: 64.0 (2.0 to 512.0)uniform float p_specular; // Highlight strength: 0.8 (0.0 to 2.0)uniform float p_ambient; // Ambient light: 0.08 (0.0 to 0.5)uniform float p_azimuth; // Sun azimuth (degrees): -20.0 (-180.0 to 180.0)uniform float p_elevation; // Sun elevation (degrees): 40.0 (-30.0 to 90.0)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));}// The angles turn the same way as the preview's orbit camera: azimuth around the vertical axis from +Z toward +X,// elevation up from the horizon.vec3 sunDirection(float azimuthDegrees, float elevationDegrees) {	float a = radians(azimuthDegrees);	float e = radians(elevationDegrees);	return vec3(cos(e) * sin(a), sin(e), cos(e) * cos(a));}vec4 effect(Inputs i) {	vec3 toSun = sunDirection(p_azimuth, p_elevation);	float diffuse = max(dot(i.normal, toSun), 0.0);	// Blinn-Phong: the halfway direction lines up with the normal exactly where a mirror would bounce the sun into	// the camera, and stays within 90° of it, so the highlight never cuts off the way Phong's reflect() can.	vec3 halfway = normalize(toSun + i.view);	float alignment = max(dot(i.normal, halfway), 0.0);	// Times diffuse: no highlight on the side the sun can't reach, and it fades out at the terminator.	float highlight = pow(alignment, p_shininess) * p_specular * diffuse;	vec3 color = p_base * (diffuse + p_ambient) + vec3(highlight);	return vec4(color, 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; opaque, so alpha is 1	fragColor = vec4(u_toSrgb(clamp(frag_out.rgb, 0.0, 1.0)), 1.0);}

// Specular highlights → Plastic, Godot 4. From Creative Center, MIT license.shader_type spatial;// Unshaded shows the effect's color as is, like the site's preview; scene lights don't touch itrender_mode unshaded;uniform vec3 base : source_color = vec3(0.8, 0.12, 0.1);uniform float shininess : hint_range(2.0, 512.0, 1.0) = 64.0;uniform float specular : hint_range(0.0, 2.0, 0.05) = 0.8;uniform float ambient : hint_range(0.0, 0.5, 0.01) = 0.08;uniform float azimuth : hint_range(-180.0, 180.0, 1.0) = -20.0;uniform float elevation : hint_range(-30.0, 90.0, 1.0) = 40.0;struct Inputs {	vec2 uv;	vec3 position;	vec3 normal;	vec3 view;	float time;	vec2 fragCoord;	vec2 resolution;};// The angles turn the same way as the preview's orbit camera: azimuth around the vertical axis from +Z toward +X,// elevation up from the horizon.vec3 sunDirection(float azimuthDegrees, float elevationDegrees) {	float a = radians(azimuthDegrees);	float e = radians(elevationDegrees);	return vec3(cos(e) * sin(a), sin(e), cos(e) * cos(a));}vec4 effect(Inputs i) {	vec3 toSun = sunDirection(azimuth, elevation);	float diffuse = max(dot(i.normal, toSun), 0.0);	// Blinn-Phong: the halfway direction lines up with the normal exactly where a mirror would bounce the sun into	// the camera, and stays within 90° of it, so the highlight never cuts off the way Phong's reflect() can.	vec3 halfway = normalize(toSun + i.view);	float alignment = max(dot(i.normal, halfway), 0.0);	// Times diffuse: no highlight on the side the sun can't reach, and it fades out at the terminator.	float highlight = pow(alignment, shininess) * specular * diffuse;	vec3 color = base * (diffuse + ambient) + vec3(highlight);	return vec4(color, 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 = frag_out.rgb;}