Rework island water and shop character

This commit is contained in:
Alexander Sellite 2026-08-08 00:34:06 -04:00
parent 0d50c324e9
commit 352350157b
65 changed files with 1144 additions and 1120 deletions

View file

@ -29,9 +29,29 @@ uniform float contour_corner_variation : hint_range(0.0, 0.15, 0.005) = 0.045;
uniform float contour_smoothing_pixels : hint_range(0.0, 2.5, 0.05) = 1.0;
uniform float contour_smoothing_strength : hint_range(0.0, 1.0, 0.01) = 0.72;
uniform float contour_depth_reject : hint_range(0.05, 2.0, 0.01) = 0.60;
uniform float shoreline_horizontal_reach : hint_range(0.05, 1.5, 0.01) = 0.32;
uniform float contact_fade_depth : hint_range(0.0, 0.1, 0.001) = 0.018;
uniform float open_water_drift_scale : hint_range(0.001, 0.3, 0.001) = 0.018;
uniform vec2 open_water_drift_speed = vec2(0.010, -0.007);
uniform float open_water_drift_strength : hint_range(0.0, 0.08, 0.001) = 0.045;
uniform vec4 surface_mark_color : source_color = vec4(0.580, 0.850, 0.860, 1.0);
uniform vec2 surface_mark_density = vec2(1.30, 0.90);
uniform vec2 surface_mark_drift = vec2(0.045, -0.032);
uniform float surface_mark_strength : hint_range(0.0, 0.3, 0.005) = 0.12;
uniform float surface_mottle_scale : hint_range(0.01, 1.0, 0.01) = 0.11;
uniform vec2 surface_mottle_speed = vec2(-0.018, 0.013);
uniform float surface_mottle_strength : hint_range(0.0, 0.2, 0.005) = 0.07;
uniform vec2 shoreline_mark_density = vec2(4.60, 3.20);
uniform vec2 shoreline_mark_drift = vec2(0.085, -0.060);
uniform float shoreline_mark_depth : hint_range(0.1, 2.0, 0.01) = 0.95;
uniform float shoreline_mark_strength : hint_range(0.0, 1.0, 0.01) = 0.82;
uniform float shoreline_base_fill : hint_range(0.0, 1.0, 0.01) = 0.32;
uniform float shoreline_opacity_boost : hint_range(0.0, 0.5, 0.01) = 0.26;
uniform float surface_highlight_night_floor : hint_range(0.0, 1.0, 0.01) = 0.72;
uniform float shoreline_minimum_reach : hint_range(0.1, 1.0, 0.01) = 0.48;
uniform float shoreline_crest_width : hint_range(0.02, 0.5, 0.01) = 0.13;
uniform float shoreline_trail_spacing : hint_range(0.05, 0.8, 0.01) = 0.28;
uniform float shoreline_trail_strength : hint_range(0.0, 1.0, 0.01) = 0.55;
uniform float distant_alpha_start : hint_range(10.0, 2000.0, 1.0) = 260.0;
uniform float distant_alpha_end : hint_range(20.0, 5000.0, 1.0) = 1400.0;
@ -61,7 +81,63 @@ float value_noise(vec2 point) {
}
float reconstruct_view_depth(
float block_mark(vec2 point, vec2 half_size) {
return (
step(abs(point.x), half_size.x)
* step(abs(point.y), half_size.y)
);
}
float blocky_mark_layer(
vec2 flowing_grid,
float seed,
float occupancy_threshold
) {
float row = floor(flowing_grid.y);
flowing_grid.x += mod(row, 2.0) * 0.43;
vec2 cell = floor(flowing_grid);
vec2 local = fract(flowing_grid) - vec2(0.5);
vec2 jitter = vec2(
hash_21(cell + vec2(3.7 + seed, 9.1)),
hash_21(cell + vec2(7.3, 2.9 + seed))
) - vec2(0.5);
local -= jitter * vec2(0.52, 0.46);
local = floor((local + vec2(0.5)) * 8.0) / 8.0 - vec2(0.5);
float shape_key = hash_21(cell + vec2(13.1 + seed, 5.7));
float size_key = hash_21(cell + vec2(1.9, 17.3 + seed));
vec2 half_size = mix(vec2(0.10, 0.07), vec2(0.18, 0.12), size_key);
float mark = block_mark(local, half_size);
if (shape_key < 0.34) {
mark = max(
mark,
block_mark(
local - vec2(half_size.x * 0.8, -0.11),
vec2(half_size.x * 0.52, 0.045)
)
);
} else if (shape_key < 0.67) {
mark *= 1.0 - block_mark(
local - vec2(half_size.x * 0.7, 0.0),
vec2(0.045)
);
} else {
mark = max(
mark,
block_mark(
local + vec2(half_size.x * 0.75, 0.10),
vec2(0.055, 0.04)
)
);
}
return mark * step(
occupancy_threshold,
hash_21(cell + vec2(19.7 + seed, 23.3))
);
}
vec3 reconstruct_view_position(
vec2 screen_uv,
float raw_depth,
mat4 inverse_projection
@ -72,22 +148,39 @@ float reconstruct_view_depth(
vec3 ndc = vec3(screen_uv * 2.0 - 1.0, raw_depth);
#endif
vec4 view_position = inverse_projection * vec4(ndc, 1.0);
return -view_position.z / max(abs(view_position.w), 0.00001);
return view_position.xyz / max(abs(view_position.w), 0.00001);
}
vec3 reconstruct_world_position(
vec2 screen_uv,
float raw_depth,
mat4 inverse_projection,
mat4 inverse_view
) {
vec3 view_position = reconstruct_view_position(
screen_uv,
raw_depth,
inverse_projection
);
return (inverse_view * vec4(view_position, 1.0)).xyz;
}
float sample_water_depth(
vec2 screen_uv,
float water_surface_depth,
mat4 inverse_projection
float water_surface_height,
mat4 inverse_projection,
mat4 inverse_view
) {
float raw_depth = texture(depth_texture, screen_uv).r;
float scene_depth = reconstruct_view_depth(
vec3 scene_world_position = reconstruct_world_position(
screen_uv,
raw_depth,
inverse_projection
inverse_projection,
inverse_view
);
return scene_depth - water_surface_depth;
return water_surface_height - scene_world_position.y;
}
@ -118,12 +211,13 @@ void vertex() {
void fragment() {
float raw_depth = texture(depth_texture, SCREEN_UV).r;
float scene_view_depth = reconstruct_view_depth(
vec3 scene_world_position = reconstruct_world_position(
SCREEN_UV,
raw_depth,
INV_PROJECTION_MATRIX
INV_PROJECTION_MATRIX,
INV_VIEW_MATRIX
);
float water_depth = max(scene_view_depth - surface_view_depth, 0.0);
float water_depth = max(world_position.y - scene_world_position.y, 0.0);
water_depth = min(water_depth, deep_depth * 4.0);
float contour_depth = water_depth;
@ -137,23 +231,51 @@ void fragment() {
float contour_weight_sum = 1.0;
float left_depth = sample_water_depth(
SCREEN_UV - vec2(contour_texel.x, 0.0),
surface_view_depth,
INV_PROJECTION_MATRIX
world_position.y,
INV_PROJECTION_MATRIX,
INV_VIEW_MATRIX
);
float right_depth = sample_water_depth(
SCREEN_UV + vec2(contour_texel.x, 0.0),
surface_view_depth,
INV_PROJECTION_MATRIX
world_position.y,
INV_PROJECTION_MATRIX,
INV_VIEW_MATRIX
);
float upper_depth = sample_water_depth(
SCREEN_UV - vec2(0.0, contour_texel.y),
surface_view_depth,
INV_PROJECTION_MATRIX
world_position.y,
INV_PROJECTION_MATRIX,
INV_VIEW_MATRIX
);
float lower_depth = sample_water_depth(
SCREEN_UV + vec2(0.0, contour_texel.y),
surface_view_depth,
INV_PROJECTION_MATRIX
world_position.y,
INV_PROJECTION_MATRIX,
INV_VIEW_MATRIX
);
float upper_left_depth = sample_water_depth(
SCREEN_UV - contour_texel,
world_position.y,
INV_PROJECTION_MATRIX,
INV_VIEW_MATRIX
);
float upper_right_depth = sample_water_depth(
SCREEN_UV + vec2(contour_texel.x, -contour_texel.y),
world_position.y,
INV_PROJECTION_MATRIX,
INV_VIEW_MATRIX
);
float lower_left_depth = sample_water_depth(
SCREEN_UV + vec2(-contour_texel.x, contour_texel.y),
world_position.y,
INV_PROJECTION_MATRIX,
INV_VIEW_MATRIX
);
float lower_right_depth = sample_water_depth(
SCREEN_UV + contour_texel,
world_position.y,
INV_PROJECTION_MATRIX,
INV_VIEW_MATRIX
);
float left_weight = contour_neighbor_weight(
water_depth, left_depth, contour_depth_reject
@ -167,11 +289,37 @@ void fragment() {
float lower_weight = contour_neighbor_weight(
water_depth, lower_depth, contour_depth_reject
);
float diagonal_scale = 0.70710678;
float upper_left_weight = contour_neighbor_weight(
water_depth, upper_left_depth, contour_depth_reject
) * diagonal_scale;
float upper_right_weight = contour_neighbor_weight(
water_depth, upper_right_depth, contour_depth_reject
) * diagonal_scale;
float lower_left_weight = contour_neighbor_weight(
water_depth, lower_left_depth, contour_depth_reject
) * diagonal_scale;
float lower_right_weight = contour_neighbor_weight(
water_depth, lower_right_depth, contour_depth_reject
) * diagonal_scale;
contour_depth_sum += left_depth * left_weight;
contour_depth_sum += right_depth * right_weight;
contour_depth_sum += upper_depth * upper_weight;
contour_depth_sum += lower_depth * lower_weight;
float neighbor_support = left_weight + right_weight + upper_weight + lower_weight;
contour_depth_sum += upper_left_depth * upper_left_weight;
contour_depth_sum += upper_right_depth * upper_right_weight;
contour_depth_sum += lower_left_depth * lower_left_weight;
contour_depth_sum += lower_right_depth * lower_right_weight;
float neighbor_support = (
left_weight
+ right_weight
+ upper_weight
+ lower_weight
+ upper_left_weight
+ upper_right_weight
+ lower_left_weight
+ lower_right_weight
);
contour_weight_sum += neighbor_support;
float smoothed_contour_depth = contour_depth_sum / contour_weight_sum;
contour_depth = mix(
@ -182,6 +330,35 @@ void fragment() {
contour_feature_support = smoothstep(0.75, 1.75, neighbor_support);
}
vec2 scene_world_dx = dFdx(scene_world_position.xz);
vec2 scene_world_dy = dFdy(scene_world_position.xz);
float horizontal_dx = max(length(scene_world_dx), 0.0001);
float horizontal_dy = max(length(scene_world_dy), 0.0001);
float depth_gradient = length(vec2(
dFdx(water_depth) / horizontal_dx,
dFdy(water_depth) / horizontal_dy
));
float estimated_shore_distance = min(
water_depth / max(depth_gradient, 0.001),
shoreline_horizontal_reach * 4.0
);
float proximity_center = shoreline_horizontal_reach * 0.86;
float proximity_filter_width = max(
fwidth(estimated_shore_distance) * 1.5,
shoreline_horizontal_reach * 0.12
);
float shoreline_proximity = 1.0 - smoothstep(
max(proximity_center - proximity_filter_width, 0.0),
proximity_center + proximity_filter_width,
estimated_shore_distance
);
float contact_filter_width = max(fwidth(water_depth) * 1.5, 0.004);
float contact_stability = smoothstep(
max(contact_fade_depth - contact_filter_width, 0.0),
contact_fade_depth + contact_filter_width,
water_depth
);
float shallow_mix = smoothstep(0.0, shallow_depth, water_depth);
float deep_mix = smoothstep(shallow_depth, deep_depth, water_depth);
vec3 water_color = mix(shore_color.rgb, shallow_color.rgb, shallow_mix);
@ -207,6 +384,7 @@ void fragment() {
contour_depth
);
tide_wash *= contour_feature_support;
tide_wash *= shoreline_proximity;
tide_wash *= 1.0 - smoothstep(shallow_depth, deep_depth, water_depth);
water_color = mix(
water_color,
@ -220,6 +398,148 @@ void fragment() {
);
}
vec2 flowing_grid = (
world_position.xz * surface_mark_density
+ TIME * surface_mark_drift
);
float surface_row = floor(flowing_grid.y);
flowing_grid.x += mod(surface_row, 2.0) * 0.43;
vec2 surface_cell = floor(flowing_grid);
vec2 surface_local = fract(flowing_grid) - vec2(0.5);
vec2 surface_jitter = vec2(
hash_21(surface_cell + vec2(3.7, 9.1)),
hash_21(surface_cell + vec2(7.3, 2.9))
) - vec2(0.5);
surface_local -= surface_jitter * vec2(0.52, 0.46);
surface_local = (
floor((surface_local + vec2(0.5)) * 8.0) / 8.0
- vec2(0.5)
);
float surface_shape = hash_21(surface_cell + vec2(13.1, 5.7));
float surface_size = hash_21(surface_cell + vec2(1.9, 17.3));
vec2 surface_half_size = mix(
vec2(0.10, 0.07),
vec2(0.18, 0.12),
surface_size
);
float surface_mark = block_mark(surface_local, surface_half_size);
if (surface_shape < 0.34) {
surface_mark = max(
surface_mark,
block_mark(
surface_local - vec2(surface_half_size.x * 0.8, -0.11),
vec2(surface_half_size.x * 0.52, 0.045)
)
);
} else if (surface_shape < 0.67) {
surface_mark *= 1.0 - block_mark(
surface_local - vec2(surface_half_size.x * 0.7, 0.0),
vec2(0.045)
);
} else {
surface_mark = max(
surface_mark,
block_mark(
surface_local + vec2(surface_half_size.x * 0.75, 0.10),
vec2(0.055, 0.04)
)
);
}
surface_mark *= step(
0.22,
hash_21(surface_cell + vec2(19.7, 23.3))
);
float mark_visibility = mix(1.0, 0.68, deep_mix);
float surface_highlight = (
surface_mark * surface_mark_strength * mark_visibility
);
vec2 shoreline_phase_coordinates = world_position.xz * phase_noise_scale;
float shoreline_phase = (
value_noise(shoreline_phase_coordinates)
+ value_noise(
shoreline_phase_coordinates * 0.47 + vec2(9.7, 3.1)
) * 0.5
- 0.75
) * phase_noise_strength;
float shoreline_cycle = (
sin(TIME * tide_speed + shoreline_phase) * 0.5 + 0.5
);
float animated_shoreline_depth = shoreline_mark_depth * mix(
shoreline_minimum_reach,
1.0,
shoreline_cycle
);
float shoreline_mask = 1.0 - smoothstep(
max(animated_shoreline_depth * 0.08, 0.01),
max(animated_shoreline_depth, 0.02),
contour_depth
);
float shoreline_depth_visibility = 1.0 - smoothstep(
shallow_depth,
deep_depth,
water_depth
);
shoreline_mask *= shoreline_depth_visibility;
float shoreline_lead_depth = animated_shoreline_depth * 0.82;
float shoreline_lead_crest = 1.0 - smoothstep(
shoreline_crest_width * 0.25,
shoreline_crest_width,
abs(contour_depth - shoreline_lead_depth)
);
float shoreline_trail_depth = max(
shoreline_lead_depth - shoreline_trail_spacing,
shoreline_crest_width
);
float shoreline_trail_crest = 1.0 - smoothstep(
shoreline_crest_width * 0.40,
shoreline_crest_width * 1.45,
abs(contour_depth - shoreline_trail_depth)
);
shoreline_lead_crest *= shoreline_depth_visibility;
shoreline_trail_crest *= (
shoreline_depth_visibility * shoreline_trail_strength
);
float shoreline_marks = max(
blocky_mark_layer(
world_position.xz * shoreline_mark_density
+ TIME * shoreline_mark_drift,
17.0,
0.04
),
blocky_mark_layer(
world_position.xz * shoreline_mark_density * 1.37
- TIME * shoreline_mark_drift.yx * 0.73,
41.0,
0.08
)
);
float shoreline_foam = shoreline_mask * mix(
shoreline_base_fill,
1.0,
shoreline_marks
);
float moving_crests = max(
shoreline_lead_crest,
shoreline_trail_crest
) * mix(0.68, 1.0, shoreline_marks);
shoreline_foam = max(shoreline_foam, moving_crests);
shoreline_foam *= shoreline_proximity;
water_alpha = min(
water_alpha + shoreline_foam * shoreline_opacity_boost,
0.98
);
water_alpha *= contact_stability;
float surface_mottle = value_noise(
world_position.xz * surface_mottle_scale
+ TIME * surface_mottle_speed
);
surface_mottle = floor(surface_mottle * 6.0) / 5.0;
water_color *= 1.0 + (
surface_mottle * 2.0 - 1.0
) * surface_mottle_strength;
vec2 drift_coordinates = (
world_position.xz * open_water_drift_scale
+ TIME * open_water_drift_speed
@ -236,6 +556,19 @@ void fragment() {
water_alpha = mix(water_alpha, 0.96, distant_mix);
water_color *= environment_tint.rgb * environment_brightness;
vec3 visible_highlight_color = surface_mark_color.rgb * max(
environment_tint.rgb * environment_brightness,
vec3(surface_highlight_night_floor)
);
float visible_highlight = max(
surface_highlight,
shoreline_foam * shoreline_mark_strength
);
water_color = mix(
water_color,
visible_highlight_color,
clamp(visible_highlight, 0.0, 1.0)
);
ALBEDO = water_color;
ALPHA = clamp(water_alpha, 0.1, 0.96);