diff options
Diffstat (limited to 'src/mbgl/shaders/collision_box.cpp')
| -rw-r--r-- | src/mbgl/shaders/collision_box.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/mbgl/shaders/collision_box.cpp b/src/mbgl/shaders/collision_box.cpp index 9d11640bf4..bc5d9bc6f9 100644 --- a/src/mbgl/shaders/collision_box.cpp +++ b/src/mbgl/shaders/collision_box.cpp @@ -22,7 +22,10 @@ varying float v_notUsed; void main() { vec4 projectedPoint = u_matrix * vec4(a_anchor_pos, 0, 1); highp float camera_to_anchor_distance = projectedPoint.w; - highp float collision_perspective_ratio = 0.5 + 0.5 * (u_camera_to_center_distance / camera_to_anchor_distance); + highp float collision_perspective_ratio = clamp( + 0.5 + 0.5 * (u_camera_to_center_distance / camera_to_anchor_distance), + 0.0, // Prevents oversized near-field boxes in pitched/overzoomed tiles + 4.0); gl_Position = u_matrix * vec4(a_pos, 0.0, 1.0); gl_Position.xy += a_extrude * u_extrude_scale * gl_Position.w * collision_perspective_ratio; |