improve visuals

client/src/main/java/client/renderer/Renderer.java

@@ -3925,6 +3925,7 @@ public class Renderer {
     {
         int i = 0;
         float f = 0.0F;
+        int n = 0;
 
         for (int j = 0; j < 4; ++j)
         {
@@ -3934,11 +3935,15 @@ public class Renderer {
             {
                 return 1.0F;
             }
+            if (blockAccess.getState(blockpos.down()).getBlock() == Blocks.air)
+            {
+                n++;
+            }
 
             State iblockstate = blockAccess.getState(blockpos);
             Block material = iblockstate.getBlock();
 
-            if (material != block)
+            if (!material.isNonBlock()) // material != block
             {
                 if (material == Blocks.air)
                 {
@@ -3956,6 +3961,6 @@ public class Renderer {
             }
         }
 
-        return 1.0F - f / (float)i;
+        return n == 4 ? 1.0f : 1.0F - f / (float)i;
     }
 }

client/src/main/resources/shaders/world.fsh

@@ -100,7 +100,7 @@ vec3 calc_point_light(light_t light, vec3 norm, vec3 dir, vec3 rgb) {
 
 void main() {
 	if(shine <= 0.0) {
-		vec2 coord = fract(tex_coord * textureSize(tex, 0) / 512.0) * vis_div; // vertex.xz + vec2(0.25, 0.5)) * 24.0 / 2.0;
+		vec2 coord = fract(tex_coord * textureSize(tex, 0) / 256.0) * vis_div; // vertex.xz + vec2(0.25, 0.5)) * 24.0 / 2.0;
 		vec2 shift = vec2(v2rand(coord + fract(time)) * 2.0 - 1.0, v2rand(coord + 0.5 + fract(time)) * 2.0 - 1.0);
 		shift = vec2(dgauss(shift.x, 0.0, 1.0), dgauss(shift.y, 0.0, 1.0)) * 0.015;
 		vec3 cl = vec3(inside(coord / vis_div, shift, 0.0, 1.0, 64.0, 1.0, 3.0, 1.0, 3.0), inside(coord / vis_div, shift, 0.0, 1.0, 64.0, 63.0, 1.0, 63.0, 1.0), inside(coord / vis_div, shift, 0.0, 1.0, 64.0, 61.0, 63.0, 61.0, 63.0));