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// NOTE: DO NOT CHANGE THIS FILE. IT IS AUTOMATICALLY GENERATED.
#include <mbgl/programs/collision_box_program.hpp>
#include <mbgl/programs/gl/shader_source.hpp>
#include <mbgl/gl/program.hpp>
namespace mbgl {
namespace gfx {
template <>
std::unique_ptr<Program<CollisionBoxProgram>>
Context::createProgram<gl::Context>(const ProgramParameters& programParameters) {
return gl::Program<CollisionBoxProgram>::createProgram(
reinterpret_cast<gl::Context&>(*this), programParameters, "collision_box",
programs::gl::shaderSource() + 9956, programs::gl::shaderSource() + 10635);
}
} // namespace gfx
} // namespace mbgl
// Uncompressed source of collision_box.vertex.glsl:
/*
attribute vec2 a_pos;
attribute vec2 a_anchor_pos;
attribute vec2 a_extrude;
attribute vec2 a_placed;
attribute vec2 a_shift;
uniform mat4 u_matrix;
uniform vec2 u_extrude_scale;
uniform float u_camera_to_center_distance;
varying float v_placed;
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 = 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 + a_shift) * u_extrude_scale * gl_Position.w * collision_perspective_ratio;
v_placed = a_placed.x;
v_notUsed = a_placed.y;
}
*/
// Uncompressed source of collision_box.fragment.glsl:
/*
varying float v_placed;
varying float v_notUsed;
void main() {
float alpha = 0.5;
// Red = collision, hide label
gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0) * alpha;
// Blue = no collision, label is showing
if (v_placed > 0.5) {
gl_FragColor = vec4(0.0, 0.0, 1.0, 0.5) * alpha;
}
if (v_notUsed > 0.5) {
// This box not used, fade it out
gl_FragColor *= .1;
}
}
*/
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