Improve normal maps on ground and walls

shader/wall/texture.geom

@@ -7,28 +7,44 @@ out vec4 gColor;
 out vec2 tPos;
 out vec4 gPos;
 out vec4 gNorm;
+out vec3 gTexCoords;
+out float gRot;
 // consider using isLHS to check if the wall is facing the center
 float isLHS (vec2 startV, vec2 testV)
 { return sign( -startV.x * testV.y + startV.y * testV.x); }
 void main()
 { gColor = vColor[0];
+  vec2 p1xy = gl_in[0].gl_Position.xy;
+  vec2 p2xy = gl_in[0].gl_Position.zw;
   vec4 p1 = vec4 (gl_in[0].gl_Position.xy,0,1);
   vec4 p2 = vec4 (gl_in[0].gl_Position.zw,0,1);
   vec4 p3 = vec4 (p1.xy,100,1);
   vec4 p4 = vec4 (p2.xy,100,1);
   vec2 d = vec2(p1.xy - p2.xy);
+  float rot = atan(d.y,d.x);
+  float dist = distance(p1xy,p2xy);
+  float tcoordx = dist / 50;
+  float tcoordz = 11;
   vec4 norm = vec4( d.y, -d.x, 0, 0);
   gPos = p1; tPos = vec2 ( 1,-1) ; gl_Position = vec4(theMat * p1); 
   gNorm = gPos - norm;
+  gTexCoords = vec3 (0,0,tcoordz);
+  gRot = rot;
   EmitVertex();
   gPos = p3; tPos = vec2 ( 1, 1) ; gl_Position = vec4(theMat * p3); 
   gNorm = gPos - norm;
+  gTexCoords = vec3 (0,2,tcoordz);
+  gRot = rot;
   EmitVertex();
   gPos = p2; tPos = vec2 (-1,-1) ; gl_Position = vec4(theMat * p2); 
   gNorm = gPos - norm;
+  gTexCoords = vec3 (tcoordx,0,tcoordz);
+  gRot = rot;
   EmitVertex();
   gPos = p4; tPos = vec2 (-1, 1) ; gl_Position = vec4(theMat * p4); 
   gNorm = gPos - norm;
+  gTexCoords = vec3 (tcoordx,2,tcoordz);
+  gRot = rot;
   EmitVertex();
   EndPrimitive();
 }