From c4093b52054b72d56fa97da9b3ad3fb2e261ab11 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Konstantin=20K=C3=A4fer?= Date: Tue, 11 Aug 2015 16:34:51 +0300 Subject: [PATCH] don't clip glyphs with the frustum --- sdf.vertex.glsl | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/sdf.vertex.glsl b/sdf.vertex.glsl index 416a9bc..192459f 100644 --- a/sdf.vertex.glsl +++ b/sdf.vertex.glsl @@ -28,7 +28,7 @@ void main() { float a_maxzoom = a_zoom[1]; // u_zoom is the current zoom level adjusted for the change in font size - float z = 2.0 - step(a_minzoom, u_zoom) - (1.0 - step(a_maxzoom, u_zoom)); + float show = step(a_minzoom, u_zoom) * (1.0 - step(a_maxzoom, u_zoom)); // fade out labels float alpha = clamp((u_fadezoom - a_labelminzoom) / u_fadedist, 0.0, 1.0); @@ -46,8 +46,8 @@ void main() { } // if label has been faded out, clip it - z += step(v_alpha, 0.0); + show *= (1.0 - step(v_alpha, 0.0)); - gl_Position = u_matrix * vec4(a_pos, 0, 1) + u_exmatrix * vec4(a_offset / 64.0, z, 0); + gl_Position = u_matrix * vec4(a_pos, 0, 1) + u_exmatrix * vec4(a_offset * show / 64.0, 0, 0); v_tex = a_tex / u_texsize; }