units

shaders/simple.vert

@@ -5,14 +5,14 @@ uniform mat4 projectionMatrix;
 
 uniform mat4 normalMatrix;
 uniform mat4 modelMatrix;
+uniform mat4 worldMatrix;
 
 layout(location = 0) in vec3 position;
 layout(location = 1) in vec2 inCoord;
 
 layout (location = 2) in float zPos;
-layout (location =3) in vec3 inNormal;
+layout (location = 3) in vec3 inNormal;
 
-//in float height;
 out vec2 fragTexCoord;
 out vec2 tilePos;
 out vec3 fragVert;
@@ -20,22 +20,24 @@ smooth out vec3 vWorldPos;
 uniform mat4 MVP;
 smooth out vec3 vNormal;
 out float z_pos;
+
 void main()
 {
+  gl_Position = MVP * vec4(position.x, position.y, zPos, 1.0);
 
-vec4 inPositionScaled = vec4(position, 1.0);
-  gl_Position = MVP *vec4(position.x,position.y,zPos, 1.0);
-  vec4 texp= modelViewMatrix *vec4(position.x,position.y,0, 1.0);
-  fragTexCoord = vec2(texp.x/2,texp.y/2);
-  vec4 tpos = modelMatrix*vec4(position.x,position.y,0, 1.0);
-  tilePos = vec2(tpos.x,tpos.y);
-  //vColor = vec4(color, 1.0);
-  vec4 vRes = vec4(inNormal, 0.0);
-     vNormal = inNormal.xyz;
+  // World position: anchored to terrain ground
+  vec4 wPos = worldMatrix * vec4(position.x, position.y, zPos, 1.0);
+  vWorldPos = wPos.xyz;
+
+  // Texture coordinates based on world coordinates (stays fixed when camera moves)
+  fragTexCoord = vec2(wPos.x * 0.5, wPos.y * 0.5);
+
+  // Tile-local position for the hexagon border outline
+  vec4 tpos = modelMatrix * vec4(position.x, position.y, 0.0, 1.0);
+  tilePos = vec2(tpos.x, tpos.y);
+
+  vNormal = inNormal.xyz;
   fragVert = position;
-
-  vec4 vWorldPosLocal =modelMatrix*inPositionScaled;
-  vWorldPos = vWorldPosLocal.xyz;
-  z_pos=zPos;
+  z_pos = zPos;
 }