fed96ef118
- Seeded weather (clear/cloudy/rain/storm, snow and blizzards on cold days and above the snowline), lightning, synthesised rain/wind/thunder sound - Rain/snow particles stopped by roofs; wet ground, settled snow and wind via global shader uniforms - Snap-together wood floor, wall, door, roof and gable with structural support, collapse and X to dismantle - Shelter detection: dry under a roof, warmer and Rested inside with a fire; rain burns an uncovered campfire faster - Bed sets the spawn point and lets you sleep through the night - Trees, boulders and ground pickups regrow; timers saved - Grass cleared under floors; shorter HUD hint - New test_weather_building suite (62 checks) and tests/run_all.sh, which also fails on script errors
50 lines
2.1 KiB
Plaintext
50 lines
2.1 KiB
Plaintext
shader_type spatial;
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render_mode cull_disabled, diffuse_burley;
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// Grass clumps (MultiMesh). UV.y runs 0 at the root to 1 at the tip and drives
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// both wind bend and the root-to-tip colour gradient. Base colour uses the same
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// noise lookups as terrain.gdshader so the blades blend into the ground beneath.
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#include "res://shaders/common.gdshaderinc"
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uniform vec3 grass_lush : source_color = vec3(0.25, 0.40, 0.15);
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uniform vec3 grass_dry : source_color = vec3(0.48, 0.50, 0.22);
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uniform vec3 tip_tint : source_color = vec3(0.78, 0.88, 0.50);
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uniform float wind_strength = 0.2;
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uniform vec2 wind_dir = vec2(1.0, 0.35);
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varying vec3 inst_pos;
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varying float hfac;
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void vertex() {
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inst_pos = MODEL_MATRIX[3].xyz;
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hfac = UV.y;
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vec3 wp = (MODEL_MATRIX * vec4(VERTEX, 1.0)).xyz;
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vec2 wd = normalize(wind_dir);
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float gust = nz(wp.xz * 0.015 - TIME * 0.05 * wd);
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float sway = sin(TIME * 1.8 + wp.x * 0.35 + wp.z * 0.25) * 0.35 + gust * 1.3 - 0.4;
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float k = wind_strength * weather_wind * hfac * hfac;
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vec3 off = vec3(wd.x * sway * k, -abs(sway) * k * 0.3, wd.y * sway * k);
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VERTEX += (inverse(MODEL_MATRIX) * vec4(off, 0.0)).xyz;
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}
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void fragment() {
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float macro = nz(inst_pos.xz * 0.0035);
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float mid = nz(inst_pos.xz * 0.021 + 0.37);
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vec3 base = mix(grass_lush, grass_dry, smoothstep(0.48, 0.78, macro + (mid - 0.5) * 0.35));
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base *= 0.82 + 0.36 * nz(inst_pos.xz * 0.17);
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vec3 col = base * mix(0.55, 1.0, hfac); // darker at the root
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col = mix(col, col * tip_tint * 1.3, smoothstep(0.6, 1.0, hfac) * 0.3);
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// Snow weighs down on the blades from the root up; rain darkens them.
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float snowy = clamp(weather_snow * 1.3 - hfac * 0.5 + (nz(inst_pos.xz * 0.17) - 0.5) * 0.4, 0.0, 0.85);
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col = mix(col, vec3(0.62, 0.65, 0.7), snowy); // greyer than ground snow: blades are lit as if flat
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col = wet_albedo(col, weather_wet * 0.6 * (1.0 - snowy));
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ALBEDO = col;
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ROUGHNESS = 0.9;
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SPECULAR = 0.2;
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BACKLIGHT = vec3(0.35, 0.4, 0.15) * hfac;
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// Light blades as if they faced up (same as the ground), so a field reads as
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// one soft surface instead of thousands of flickering cards.
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NORMAL = normalize((VIEW_MATRIX * vec4(0.0, 1.0, 0.0, 0.0)).xyz);
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}
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