Update Files

leenkx/Shaders/std/mapping.glsl

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+/*
+https://github.com/JonasFolletete/glsl-triplanar-mapping
+
+MIT License
+
+Copyright (c) 2018 Jonas Folletête
+
+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.
+*/
+
+vec3 blendNormal(vec3 normal) {
+	vec3 blending = abs(normal);
+	blending = normalize(max(blending, 0.00001));
+	blending /= vec3(blending.x + blending.y + blending.z);
+	return blending;
+}
+
+vec3 triplanarMapping (sampler2D ImageTexture, vec3 normal, vec3 position) {
+  	vec3 normalBlend = blendNormal(normal);
+	vec3 xColor = texture(ImageTexture, position.yz).rgb;
+	vec3 yColor = texture(ImageTexture, position.xz).rgb;
+	vec3 zColor = texture(ImageTexture, position.xy).rgb;
+
+  return (xColor * normalBlend.x + yColor * normalBlend.y + zColor * normalBlend.z);
+}