Weiter gearbeitet

blight-assets/src/main/resources/Shaders/Voxel.tsctrl

@@ -0,0 +1,29 @@
+layout(vertices = 3) out;
+
+in vec3 vWorldPos[];
+in vec3 vNormal[];
+
+out vec3 tcWorldPos[];
+out vec3 tcNormal[];
+
+uniform float m_TessellationLevel;
+uniform vec3  g_CameraPosition;
+
+void main() {
+    tcWorldPos[gl_InvocationID] = vWorldPos[gl_InvocationID];
+    tcNormal[gl_InvocationID]   = vNormal[gl_InvocationID];
+
+    if (gl_InvocationID == 0) {
+        vec3  center = (vWorldPos[0] + vWorldPos[1] + vWorldPos[2]) / 3.0;
+        float dist   = distance(g_CameraPosition, center);
+
+        // Maximum subdivision close-up, falls to 1 at 64 m
+        float level  = mix(m_TessellationLevel, 1.0, clamp(dist / 64.0, 0.0, 1.0));
+        level = max(1.0, level);
+
+        gl_TessLevelOuter[0] = level;
+        gl_TessLevelOuter[1] = level;
+        gl_TessLevelOuter[2] = level;
+        gl_TessLevelInner[0] = level;
+    }
+}