Grassy knoll

2026-03-19 11:35:38 -05:00
parent 42e49b5cd8
commit b5c7c7c8b6
124 changed files with 7319 additions and 119 deletions
@@ -0,0 +1,47 @@
+/* distance.gdshader
+This file is part of: SimpleGrassTextured
+Copyright (c) 2023 IcterusGames
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.*/
+
+shader_type spatial;
+render_mode blend_mix,depth_draw_never,cull_back,unshaded,ambient_light_disabled;
+uniform sampler2D heightmap_texture : hint_default_white, repeat_disable, filter_nearest;
+uniform sampler2D depth_texture : hint_depth_texture, repeat_disable, filter_nearest;
+
+global uniform int sgt_legacy_renderer = 0;
+
+void fragment() {
+	vec2 uv = SCREEN_UV;
+	uv.y = 1.0 - uv.y;
+	float depth = textureLod(depth_texture, uv, 0.0).r;
+	
+	// If using Compatibility renderer, apply proper depth range
+	vec3 ndc = mix(vec3(uv * 2.0 - 1.0, depth), vec3(uv, depth) * 2.0 - 1.0, float(sgt_legacy_renderer));
+	vec4 upos = INV_PROJECTION_MATRIX * vec4(ndc, 1.0);
+	float pos_y = -upos.z + CAMERA_POSITION_WORLD.y;
+	vec3 color_h = textureLod(heightmap_texture, UV, 0).rgb;
+	highp float map_y = (((round(color_h.r * 255.0) - 75.0) * 180.0) + (round(color_h.g * 255.0) - 75.0) + color_h.b) - 16200.0;
+	float dist = clamp(abs(map_y - pos_y) / 0.35, 0.0, 1.0) * 65535.0;
+	ALBEDO.r = floor(dist / 256.0) / 255.0;
+	ALBEDO.g = (dist - round(ALBEDO.r * 65280.0)) / 255.0;
+	ALBEDO.b = 0.0;
+	ALPHA = 1.0;
+}