Fixed custom depth rendering

Author: greatmastermario

docs/config.rst

@@ -1101,10 +1101,10 @@ Depth
     **Options**
 
     min
-        lowest level of blocks to render. Default: 0
+        lowest level of blocks to render. Default: -64
 
     max
-        highest level of blocks to render. Default: 255
+        highest level of blocks to render. Default: 319
 
 Exposed
     Only renders blocks that are exposed (adjacent to a transparent block).

overviewer_core/rendermodes.py

@@ -67,8 +67,8 @@ class HeightFading(RenderPrimitive):
 class Depth(RenderPrimitive):
     name = "depth"
     options = {
-        "min": ("lowest level of blocks to render", 0),
-        "max": ("highest level of blocks to render", 255),
+        "min": ("lowest level of blocks to render", -64),
+        "max": ("highest level of blocks to render", 319),
     }
 
 class Exposed(RenderPrimitive):

overviewer_core/src/primitives/depth.c

@@ -37,7 +37,7 @@ depth_start(void* data, RenderState* state, PyObject* support) {
 static bool
 depth_hidden(void* data, RenderState* state, int32_t x, int32_t y, int32_t z) {
     PrimitiveDepth* self = (PrimitiveDepth*)data;
-    y += 16 * state->chunky;
+    y += 16 * (state->chunky - 4);
     if (y > self->max || y < self->min) {
         return true;
     }