Add existing to tracked

2026-08-11 09:53:42 -04:00
parent afe07f3055
commit ffd6e3d73c
8531 changed files with 4396230 additions and 0 deletions
@@ -0,0 +1,29 @@
+uniform vec4 lightColor;
+uniform vec4 darkColor;
+uniform vec2 repeat;
+
+czm_material czm_getMaterial(czm_materialInput materialInput)
+{
+    czm_material material = czm_getDefaultMaterial(materialInput);
+
+    vec2 st = materialInput.st;
+
+    // From Stefan Gustavson's Procedural Textures in GLSL in OpenGL Insights
+    float b = mod(floor(repeat.s * st.s) + floor(repeat.t * st.t), 2.0);  // 0.0 or 1.0
+
+    // Find the distance from the closest separator (region between two colors)
+    float scaledWidth = fract(repeat.s * st.s);
+    scaledWidth = abs(scaledWidth - floor(scaledWidth + 0.5));
+    float scaledHeight = fract(repeat.t * st.t);
+    scaledHeight = abs(scaledHeight - floor(scaledHeight + 0.5));
+    float value = min(scaledWidth, scaledHeight);
+
+    vec4 currentColor = mix(lightColor, darkColor, b);
+    vec4 color = czm_antialias(lightColor, darkColor, currentColor, value, 0.03);
+
+    color = czm_gammaCorrect(color);
+    material.diffuse = color.rgb;
+    material.alpha = color.a;
+
+    return material;
+}