1 files changed, 25 insertions, 0 deletions
diff --git a/src/main/resources/assets/gregtech/shaders/laser.frag.glsl b/src/main/resources/assets/gregtech/shaders/laser.frag.glsl
new file mode 100644
index 0000000000..45656e8767
--- /dev/null
+++ b/src/main/resources/assets/gregtech/shaders/laser.frag.glsl
@@ -0,0 +1,25 @@
+#version 120
+
+uniform sampler2D u_Texture;
+uniform vec3 u_Color;
+
+varying vec2 v_TexCoord;
+
+vec3 toYIQ(vec3 rgb){
+    return mat3( 0.299, 1.0, 0.40462981, 0.587, -0.46081557, -1.0, 0.114, -0.53918443, 0.59537019 ) * rgb;
+}
+
+vec3 toRGB(vec3 yiq){
+    return mat3( 1.0, 1.0, 1.0, 0.5696804, -0.1620848, -0.6590654, 0.3235513, -0.3381869, 0.8901581 ) * yiq;
+}
+
+void main() {
+    vec4 texture = texture2D(u_Texture, v_TexCoord);
+
+    vec3 targetYIQ = toYIQ(u_Color);
+    vec3 originalYIQ = toYIQ(texture.xyz);
+    vec3 yiqColor = vec3(originalYIQ.x,normalize(targetYIQ.yz)*length(originalYIQ.yz));
+    vec3 finalrgb = toRGB(yiqColor);
+
+    gl_FragColor = vec4(finalrgb,1);
+}