fix: skybox is not visible behind translucent blocks

res/shaders/main.glslv

@@ -5,44 +5,23 @@ layout (location = 1) in vec2 v_texCoord;
 layout (location = 2) in vec4 v_light;
 layout (location = 3) in vec4 v_normal;
 
-out float a_distance;
-out float a_fog;
-out vec2 a_texCoord;
-out vec3 a_dir;
-out vec3 a_normal;
-out vec3 a_position;
-out vec3 a_realnormal;
-out vec4 a_torchLight;
-out vec3 a_skyLight;
-out vec4 a_modelpos;
-out float a_emission;
-
-uniform mat4 u_model;
-uniform mat4 u_proj;
-uniform mat4 u_view;
-uniform vec3 u_cameraPos;
-uniform float u_gamma;
-uniform float u_timer;
-uniform samplerCube u_skybox;
-
-uniform vec3 u_torchlightColor;
-uniform float u_torchlightDistance;
-
+#include <world_vertex_header>
 #include <lighting>
 #include <fog>
+#include <sky>
+
+out vec4 a_torchLight;
 
 void main() {
     a_modelpos = u_model * vec4(v_position, 1.0f);
     vec3 pos3d = a_modelpos.xyz - u_cameraPos;
-    a_modelpos.xyz = apply_planet_curvature(a_modelpos.xyz, pos3d);
 
     a_realnormal = v_normal.xyz * 2.0 - 1.0;
     a_normal = calc_screen_normal(a_realnormal);
 
-    vec3 light = v_light.rgb;
-    float torchlight = calc_torch_light(a_realnormal, a_modelpos.xyz);
-    a_torchLight = vec4(pow(light + torchlight * u_torchlightColor, vec3(u_gamma)), 1.0f);
-
+    a_torchLight = vec4(calc_torch_light(
+        v_light.rgb, a_realnormal, a_modelpos.xyz, u_torchlightColor, u_gamma
+    ), 1.0);
     a_texCoord = v_texCoord;
 
     a_dir = a_modelpos.xyz - u_cameraPos;
@@ -51,9 +30,11 @@ void main() {
 
     mat4 viewmodel = u_view * u_model;
     a_distance = length(viewmodel * vec4(pos3d, 0.0));
+
 #ifndef ADVANCED_RENDER
     a_fog = calc_fog(length(viewmodel * vec4(pos3d * FOG_POS_SCALE, 0.0)) / 256.0);
 #endif
+
     a_emission = v_normal.w;
 
     vec4 viewmodelpos = u_view * a_modelpos;