fix: skybox is not visible behind translucent blocks

res/shaders/lib/commons.glsl

@@ -1,14 +1,7 @@
 #ifndef COMMONS_GLSL_
 #define COMMONS_GLSL_
-#include <constants>
 
-vec3 pick_sky_color(samplerCube cubemap) {
-    vec3 skyLightColor = texture(cubemap, vec3(0.4f, 0.0f, 0.4f)).rgb;
-    skyLightColor *= SKY_LIGHT_TINT;
-    skyLightColor = min(vec3(1.0f), skyLightColor * SKY_LIGHT_MUL);
-    skyLightColor = max(MIN_SKY_LIGHT, skyLightColor);
-    return skyLightColor;
-}
+#include <constants>
 
 vec3 apply_planet_curvature(vec3 modelPos, vec3 pos3d) {
     modelPos.y -= pow(length(pos3d.xz) * CURVATURE_FACTOR, 3.0f);

res/shaders/lib/lighting.glsl

@@ -6,6 +6,11 @@ float calc_torch_light(vec3 normal, vec3 modelpos) {
          * max(0.0, -dot(normal, normalize(modelpos - u_cameraPos)));
 }
 
+vec3 calc_torch_light(vec3 light, vec3 normal, vec3 modelpos, vec3 torchLightColor, float gamma) {
+    float torchlight = calc_torch_light(normal, modelpos);
+    return pow(light + torchlight * torchLightColor, vec3(gamma));
+}
+
 vec3 calc_screen_normal(vec3 normal) {
     return transpose(inverse(mat3(u_view * u_model))) * normal;
 }

res/shaders/lib/sky.glsl

@@ -0,0 +1,14 @@
+#ifndef COMMONS_SKY_
+#define COMMONS_SKY_
+
+#include <constants>
+
+vec3 pick_sky_color(samplerCube cubemap) {
+    vec3 skyLightColor = texture(cubemap, vec3(0.4f, 0.0f, 0.4f)).rgb;
+    skyLightColor *= SKY_LIGHT_TINT;
+    skyLightColor = min(vec3(1.0f), skyLightColor * SKY_LIGHT_MUL);
+    skyLightColor = max(MIN_SKY_LIGHT, skyLightColor);
+    return skyLightColor;
+}
+
+#endif // COMMONS_SKY_

res/shaders/lib/world_fragment_header.glsl

@@ -0,0 +1,17 @@
+#ifndef GLSL_WORLD_FRAGMENT_HEADER_
+#define GLSL_WORLD_FRAGMENT_HEADER_
+
+in float a_distance;
+in float a_fog;
+in vec2 a_texCoord;
+in vec3 a_dir;
+in vec3 a_normal;
+in vec3 a_position;
+in vec3 a_realnormal;
+in vec3 a_skyLight;
+in vec4 a_modelpos;
+in float a_emission;
+
+#include <world_uniforms>
+
+#endif // GLSL_WORLD_FRAGMENT_HEADER_

res/shaders/lib/world_uniforms.glsl

@@ -0,0 +1,15 @@
+#ifndef GLSL_WORLD_UNIFORMS_
+#define GLSL_WORLD_UNIFORMS_
+
+uniform mat4 u_model;
+uniform mat4 u_proj;
+uniform mat4 u_view;
+uniform vec3 u_cameraPos;
+uniform float u_gamma;
+uniform float u_opacity;
+uniform float u_timer;
+uniform samplerCube u_skybox;
+uniform vec3 u_torchlightColor;
+uniform float u_torchlightDistance;
+
+#endif // GLSL_WORLD_UNIFORMS_

res/shaders/lib/world_vertex_header.glsl

@@ -0,0 +1,17 @@
+#ifndef GLSL_WORLD_VERTEX_HEADER_
+#define GLSL_WORLD_VERTEX_HEADER_
+
+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 vec3 a_skyLight;
+out vec4 a_modelpos;
+out float a_emission;
+
+#include <world_uniforms>
+
+#endif // GLSL_WORLD_VERTEX_HEADER_