The 'numTiles' variable is not being used in the vertex shader. To test this PR, apply the Glitter transition. If it works as expected, then the change is successful. Signed-off-by: Javiya Vivekkumar Dineshbhai <vivek.javiya@collabora.com> Change-Id: Ia1f833e6009b1f8c774329945ba260d20b8c9f64 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/168222 Tested-by: Jenkins Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>