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 sampler2D image;
+uniform float strength;
+uniform vec2 repeat;
+
+czm_material czm_getMaterial(czm_materialInput materialInput)
+{
+    czm_material material = czm_getDefaultMaterial(materialInput);
+
+    vec2 st = materialInput.st;
+
+    vec2 centerPixel = fract(repeat * st);
+    float centerBump = texture(image, centerPixel).channel;
+
+    float imageWidth = float(imageDimensions.x);
+    vec2 rightPixel = fract(repeat * (st + vec2(1.0 / imageWidth, 0.0)));
+    float rightBump = texture(image, rightPixel).channel;
+
+    float imageHeight = float(imageDimensions.y);
+    vec2 leftPixel = fract(repeat * (st + vec2(0.0, 1.0 / imageHeight)));
+    float topBump = texture(image, leftPixel).channel;
+
+    vec3 normalTangentSpace = normalize(vec3(centerBump - rightBump, centerBump - topBump, clamp(1.0 - strength, 0.1, 1.0)));
+    vec3 normalEC = materialInput.tangentToEyeMatrix * normalTangentSpace;
+
+    material.normal = normalEC;
+    material.diffuse = vec3(0.01);
+
+    return material;
+}