diff options
Diffstat (limited to 'src/mbgl/shaders/line_pattern.cpp')
| -rw-r--r-- | src/mbgl/shaders/line_pattern.cpp | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/src/mbgl/shaders/line_pattern.cpp b/src/mbgl/shaders/line_pattern.cpp index ded4c76825..222042a13c 100644 --- a/src/mbgl/shaders/line_pattern.cpp +++ b/src/mbgl/shaders/line_pattern.cpp @@ -28,7 +28,6 @@ attribute vec4 a_data; uniform mat4 u_matrix; uniform mediump float u_ratio; -uniform mediump float u_width; uniform vec2 u_gl_units_to_pixels; varying vec2 v_normal; @@ -67,6 +66,13 @@ attribute mediump vec2 a_gapwidth; uniform mediump float u_gapwidth; #endif +#ifndef HAS_UNIFORM_u_width +uniform lowp float a_width_t; +attribute mediump vec2 a_width; +#else +uniform mediump float u_width; +#endif + void main() { #ifndef HAS_UNIFORM_u_blur @@ -93,6 +99,12 @@ void main() { mediump float gapwidth = u_gapwidth; #endif +#ifndef HAS_UNIFORM_u_width + mediump float width = unpack_mix_vec2(a_width, a_width_t); +#else + mediump float width = u_width; +#endif + vec2 a_extrude = a_data.xy - 128.0; float a_direction = mod(a_data.z, 4.0) - 1.0; float a_linesofar = (floor(a_data.z / 4.0) + a_data.w * 64.0) * LINE_DISTANCE_SCALE; @@ -108,11 +120,11 @@ void main() { // these transformations used to be applied in the JS and native code bases. // moved them into the shader for clarity and simplicity. gapwidth = gapwidth / 2.0; - float width = u_width / 2.0; + float halfwidth = width / 2.0; offset = -1.0 * offset; float inset = gapwidth + (gapwidth > 0.0 ? ANTIALIASING : 0.0); - float outset = gapwidth + width * (gapwidth > 0.0 ? 2.0 : 1.0) + ANTIALIASING; + float outset = gapwidth + halfwidth * (gapwidth > 0.0 ? 2.0 : 1.0) + ANTIALIASING; // Scale the extrusion vector down to a normal and then up by the line width // of this vertex. |