42 lines
2.0 KiB
Plaintext
42 lines
2.0 KiB
Plaintext
|
shader_type spatial;
|
||
|
|
render_mode cull_disabled;
|
||
|
|
uniform sampler2D color_map : source_color, filter_linear_mipmap_anisotropic, repeat_enable;
|
||
|
|
uniform sampler2D normal_map : hint_normal, filter_linear_mipmap_anisotropic, repeat_enable;
|
||
|
|
uniform bool scanned_uv = false;
|
||
|
|
varying vec3 world_pos;
|
||
|
|
varying vec3 world_normal;
|
||
|
|
void vertex() {
|
||
|
|
world_pos = (MODEL_MATRIX * vec4(VERTEX, 1.0)).xyz;
|
||
|
|
world_normal = normalize(MODEL_NORMAL_MATRIX * NORMAL);
|
||
|
|
}
|
||
|
|
void fragment() {
|
||
|
|
vec3 weights = pow(abs(world_normal), vec3(5.0));
|
||
|
|
weights /= max(dot(weights, vec3(1.0)), 0.0001);
|
||
|
|
vec3 surface = texture(color_map, UV).rgb;
|
||
|
|
if (!scanned_uv) {
|
||
|
|
surface = texture(color_map, world_pos.zy * vec2(0.15, 0.30)).rgb * weights.x
|
||
|
|
+ texture(color_map, world_pos.xz * 0.22).rgb * weights.y
|
||
|
|
+ texture(color_map, world_pos.xy * vec2(0.15, 0.30)).rgb * weights.z;
|
||
|
|
}
|
||
|
|
float luma = dot(surface, vec3(0.2126, 0.7152, 0.0722));
|
||
|
|
float strata = sin(world_pos.y * 1.7 + sin(world_pos.x * 0.055 + world_pos.z * 0.045) * 0.65);
|
||
|
|
float seam = smoothstep(0.82, 0.99, sin(world_pos.y * 4.6 + sin(world_pos.x * 0.18 + world_pos.z * 0.08) * 0.25));
|
||
|
|
vec3 sandstone = mix(vec3(0.32, 0.235, 0.15), vec3(0.66, 0.51, 0.34), clamp(luma * 1.35, 0.0, 1.0));
|
||
|
|
sandstone *= 0.94 + strata * 0.06 - seam * 0.045;
|
||
|
|
float dust = (1.0 - smoothstep(0.0, 4.0, world_pos.y)) * 0.34;
|
||
|
|
ALBEDO = mix(sandstone, vec3(0.53, 0.425, 0.29), dust);
|
||
|
|
ROUGHNESS = 0.94;
|
||
|
|
if (scanned_uv) {
|
||
|
|
NORMAL_MAP = texture(normal_map, UV).rgb;
|
||
|
|
NORMAL_MAP_DEPTH = 0.65;
|
||
|
|
} else {
|
||
|
|
vec3 nx = texture(normal_map, world_pos.zy * vec2(0.15, 0.30)).xyz * 2.0 - 1.0;
|
||
|
|
vec3 ny = texture(normal_map, world_pos.xz * 0.22).xyz * 2.0 - 1.0;
|
||
|
|
vec3 nz = texture(normal_map, world_pos.xy * vec2(0.15, 0.30)).xyz * 2.0 - 1.0;
|
||
|
|
vec3 detail = vec3(0.0, nx.y, nx.x) * weights.x
|
||
|
|
+ vec3(ny.x, 0.0, ny.y) * weights.y
|
||
|
|
+ vec3(nz.x, nz.y, 0.0) * weights.z;
|
||
|
|
NORMAL = normalize((VIEW_MATRIX * vec4(normalize(world_normal + detail * 0.8), 0.0)).xyz);
|
||
|
|
}
|
||
|
|
}
|