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 +1,46 @@
+/* normal.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 canvas_item;
+render_mode blend_mix;
+
+const float LVL = 4.0;
+
+uniform sampler2D depth_texture : repeat_disable, filter_nearest, hint_default_white;
+
+
+float get_value(sampler2D tex, vec2 uv) {
+	vec4 color = textureLod(tex, uv, 0);
+	return (round(color.r * 65280.0) + round(color.g * 255.0)) / 65535.0;
+}
+
+
+void fragment() {
+	vec2 pixel = 1.0 / vec2(textureSize(depth_texture, 0));
+	float c = get_value(depth_texture, UV);
+	float l = get_value(depth_texture, UV - (vec2(1.0, 0.0) * pixel));
+	float r = get_value(depth_texture, UV + (vec2(1.0, 0.0) * pixel));
+	float u = get_value(depth_texture, UV - (vec2(0.0, 1.0) * pixel));
+	float d = get_value(depth_texture, UV + (vec2(0.0, 1.0) * pixel));
+	COLOR = vec4((r - l) * LVL * 0.5 + 0.5, (d - u) * LVL * 0.5 + 0.5, 1.0 - c, 1.0);
+}