effect = nil
video = nil

function _create()
    video = Texture.FromGStreamer("filesrc location=" .. Resolve("sunset.mkv"))

    local fxSrc = [[uniform sampler2D uTexture;

        void main() {
            vec2 uv = vUV;

            for (int i = 0; i < uNumDisplays; i++) {
                vec4 displayNorm = uDisplayNorm[i];

                if (vUV.x >= displayNorm.x && vUV.x <= displayNorm.x + displayNorm.z &&
                    vUV.y >= displayNorm.y && vUV.y <= displayNorm.y + displayNorm.w) {
                    FragColor = texture(uTexture, GetDisplayUV(uTexture, i));
                    break;
                }
            }
        }
    ]]
    effect = Effect.new(fxSrc)
end

function _update(dt)

end

function _render()
    gl.Clear(0, 0, 0, 1.0)
    effect:Use()
    effect:SetTexture("uTexture", video, 0)
    effect:Render()
end