looking-glass/client/renderers/EGL/shader/cursor_mono.frag

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#version 300 es
in highp vec2 uv;
out highp vec4 color;
uniform sampler2D sampler1;
void main()
{
highp vec4 tmp = texture(sampler1, uv);
if (tmp.rgb == vec3(0.0, 0.0, 0.0))
discard;
color = tmp;
}