Rocha de penhasco

#version 300 es// Triplanar mapping → Cliff rock, 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 float p_scale; // Tiles per unit: 0.75 (0.25 to 4.0)uniform float p_sharpness; // Blend sharpness: 4.0 (1.0 to 16.0)uniform sampler2D t_rock; // rock.jpg: sRGB color, uploaded as SRGB8_ALPHA8 so it samples linear; linear filter with mipmaps, repeatin 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) {	// How much the surface faces each world axis; the power narrows the seams where two projections cross-fade	vec3 facing = pow(abs(i.normal), vec3(p_sharpness));	// Dividing by the sum keeps the three weights adding up to 1, so the blend neither brightens nor darkens	vec3 weights = facing / (facing.x + facing.y + facing.z);	vec3 p = i.position * p_scale;	// Each projection drops the axis it looks along; y stays the texture's vertical on both sides, so the rock's	// layers stay level there. On a 45° edge two coordinates are equal, so without the half-tile shifts two	// projections would show the same texels mirrored there, a symmetric seam.	vec3 sideX = texture(t_rock, p.zy + vec2(0.5, 0.0)).rgb;	vec3 top = texture(t_rock, p.xz + vec2(0.0, 0.5)).rgb;	vec3 sideZ = texture(t_rock, p.xy).rgb;	vec3 rock = sideX * weights.x + top * weights.y + sideZ * weights.z;	return vec4(rock, 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);}

// Triplanar mapping → Cliff rock, 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 float scale : hint_range(0.25, 4.0, 0.05) = 0.75;uniform float sharpness : hint_range(1.0, 16.0, 0.5) = 4.0;uniform sampler2D t_rock : source_color, filter_linear_mipmap, repeat_enable; // rock.jpgstruct Inputs {	vec2 uv;	vec3 position;	vec3 normal;	vec3 view;	float time;	vec2 fragCoord;	vec2 resolution;};// Godot's textures start at the top-left and the effect's uv at the bottom-left: each sample flips v backvec2 u_flipUv(vec2 uv) {	return vec2(uv.x, 1.0 - uv.y);}vec4 effect(Inputs i) {	// How much the surface faces each world axis; the power narrows the seams where two projections cross-fade	vec3 facing = pow(abs(i.normal), vec3(sharpness));	// Dividing by the sum keeps the three weights adding up to 1, so the blend neither brightens nor darkens	vec3 weights = facing / (facing.x + facing.y + facing.z);	vec3 p = i.position * scale;	// Each projection drops the axis it looks along; y stays the texture's vertical on both sides, so the rock's	// layers stay level there. On a 45° edge two coordinates are equal, so without the half-tile shifts two	// projections would show the same texels mirrored there, a symmetric seam.	vec3 sideX = texture(t_rock, u_flipUv(p.zy + vec2(0.5, 0.0))).rgb;	vec3 top = texture(t_rock, u_flipUv(p.xz + vec2(0.0, 0.5))).rgb;	vec3 sideZ = texture(t_rock, u_flipUv(p.xy)).rgb;	vec3 rock = sideX * weights.x + top * weights.y + sideZ * weights.z;	return vec4(rock, 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;}