eo/shaders/fs_basic.sc

$input v_texcoord0

uniform sampler2D u_texture_color;

#include <bgfx_shader.sh>
#include <shaderlib.sh>

void main() {
  vec4 color = texture2D(u_texture_color, v_texcoord0);
  if (color.r == 0 && color.g == 0 && color.b == 0) {
    return;
  }
  gl_FragColor = color;
}