feat:3D multi dot

shaders/base.frag

@@ -0,0 +1,25 @@
+#version 330 core
+
+in vec3 vNormal;
+in vec3 vWorldPos;
+out vec4 FragColor;
+
+uniform vec3 uCameraPos;
+uniform vec3 uLightDir;
+uniform vec3 uColor;
+
+float saturate(float x) { return clamp(x, 0.0, 1.0); }
+
+void main() {
+    vec3 N = normalize(vNormal);
+    vec3 L = normalize(uLightDir);
+    vec3 V = normalize(uCameraPos - vWorldPos);
+    vec3 H = normalize(L + V);
+
+    float diff = saturate(dot(N, L));
+    float spec = pow(saturate(dot(N, H)), 24.0);
+
+    vec3 col = uColor * (0.35 + 0.65 * diff);
+    col += vec3(1.0) * spec * 0.10;
+    FragColor = vec4(clamp(col, 0.0, 1.0), 1.0);
+}