fix dashed and pattern line rendering

shaders/line.vertex.glsl

@@ -55,6 +55,5 @@ void main() {
     // how much features are squished in all directions by the perspectiveness
     float perspective_scale = 1.0 / (1.0 - y * u_extra);
 
-    // the 1.1 adds a tiny bit of extra blurriness to account for the inexactness of these calculations
-    gamma_scale = perspective_scale * squish_scale * 1.1;
+    gamma_scale = perspective_scale * squish_scale;
 }

shaders/linepattern.vertex.glsl

@@ -43,7 +43,7 @@ void main() {
     // model/view matrix. Add the extrusion vector *after* the model/view matrix
     // because we're extruding the line in pixel space, regardless of the current
     // tile's zoom level.
-    gl_Position = u_matrix * vec4(floor(a_pos / 2.0), 0.0, 1.0) + u_exmatrix * vec4(dist, 0.0, 0.0);
+    gl_Position = u_matrix * vec4(floor(a_pos * 0.5) + dist.xy / u_ratio, 0.0, 1.0);
     v_linesofar = a_linesofar;// * u_ratio;
 
 }

shaders/linesdfpattern.vertex.glsl

@@ -45,7 +45,7 @@ void main() {
     // model/view matrix. Add the extrusion vector *after* the model/view matrix
     // because we're extruding the line in pixel space, regardless of the current
     // tile's zoom level.
-    gl_Position = u_matrix * vec4(floor(a_pos * 0.5), 0.0, 1.0) + u_exmatrix * dist;
+    gl_Position = u_matrix * vec4(floor(a_pos * 0.5) + dist.xy / u_ratio, 0.0, 1.0);
 
     v_tex_a = vec2(a_linesofar * u_patternscale_a.x, normal.y * u_patternscale_a.y + u_tex_y_a);
     v_tex_b = vec2(a_linesofar * u_patternscale_b.x, normal.y * u_patternscale_b.y + u_tex_y_b);