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-rw-r--r--src/mbgl/shaders/line.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/mbgl/shaders/line.cpp b/src/mbgl/shaders/line.cpp
index c700295a15..68d2dcc468 100644
--- a/src/mbgl/shaders/line.cpp
+++ b/src/mbgl/shaders/line.cpp
@@ -31,6 +31,7 @@ uniform vec2 u_gl_units_to_pixels;
varying vec2 v_normal;
varying vec2 v_width2;
varying float v_gamma_scale;
+varying highp float v_linesofar;
#ifndef HAS_UNIFORM_u_color
@@ -131,6 +132,8 @@ void main() {
vec2 a_extrude = a_data.xy - 128.0;
float a_direction = mod(a_data.z, 4.0) - 1.0;
+ v_linesofar = (floor(a_data.z / 4.0) + a_data.w * 64.0) * 2.0;
+
vec2 pos = a_pos_normal.xy;
// x is 1 if it's a round cap, 0 otherwise