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 +1,40 @@
+/* blur1.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;
+
+uniform sampler2D normal_texture : hint_normal, filter_nearest, repeat_disable;
+
+
+void fragment() {
+	vec2 pixel = 1.0 / vec2(textureSize(normal_texture, 0));
+	float lvl = round(float(textureSize(normal_texture, 0).y) * 0.01);
+	highp vec4 color = vec4(0.0);
+	highp float total = 0.0;
+	for(float x = -lvl * 2.0; x <= lvl * 2.0; x += 1.0) {
+		float gauss = (1.0 / (sqrt(TAU * lvl * lvl))) * pow(E, -((x * x) / (2.0 * lvl * lvl)));
+		color += texture(normal_texture, UV + vec2(0.0, x * pixel.x)) * gauss;
+		total += gauss;
+	}
+	COLOR = color / total;
+}