$input v_color0, v_texcoord0

#include <bgfx_shader.sh>

SAMPLER2D(s_textureSampler,  0);

uniform vec2      u_blur_scale;

uniform float     u_compose_alpha;
uniform float     u_compose_mult;

void main() {
   vec4 color = texture2D(s_textureSampler, vec2(v_texcoord0.x-4.0*u_blur_scale.x, v_texcoord0.y-4.0*u_blur_scale.y))*0.05;
   color +=     texture2D(s_textureSampler, vec2(v_texcoord0.x-3.0*u_blur_scale.x, v_texcoord0.y-3.0*u_blur_scale.y))*0.09;
   color +=     texture2D(s_textureSampler, vec2(v_texcoord0.x-2.0*u_blur_scale.x, v_texcoord0.y-2.0*u_blur_scale.y))*0.12;
   color +=     texture2D(s_textureSampler, vec2(v_texcoord0.x-1.0*u_blur_scale.x, v_texcoord0.y-1.0*u_blur_scale.y))*0.15;
   color +=     texture2D(s_textureSampler, vec2(v_texcoord0.x+0.0*u_blur_scale.x, v_texcoord0.y+0.0*u_blur_scale.y))*0.16;
   color +=     texture2D(s_textureSampler, vec2(v_texcoord0.x+1.0*u_blur_scale.x, v_texcoord0.y+1.0*u_blur_scale.y))*0.15;
   color +=     texture2D(s_textureSampler, vec2(v_texcoord0.x+2.0*u_blur_scale.x, v_texcoord0.y+2.0*u_blur_scale.y))*0.12;
   color +=     texture2D(s_textureSampler, vec2(v_texcoord0.x+3.0*u_blur_scale.x, v_texcoord0.y+3.0*u_blur_scale.y))*0.09;
   color +=     texture2D(s_textureSampler, vec2(v_texcoord0.x+4.0*u_blur_scale.x, v_texcoord0.y+4.0*u_blur_scale.y))*0.05;

   gl_FragColor = color * vec4(u_compose_mult, u_compose_mult, u_compose_mult, u_compose_alpha*u_compose_mult);
}