point-sprite: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On CentOS possible default full paths are:

/usr/lib64/piglit/bin/point-sprite - from package: piglit

You may install the required package with command yum install {package}

Error in other languages:
point-sprite: bevel nie gevind nie
point-sprite: comandă negăsită
point-sprite: comando não encontrado
point-sprite: commande introuvable
point-sprite: command not found
point-sprite: käsku ei ole
point-sprite: không tìm thấy lệnh
point-sprite: komanda nerasta
point-sprite: Kommando nicht gefunden.
point-sprite: kommandot finns inte
point-sprite: komut yok
point-sprite: nie znaleziono polecenia
point-sprite: níor aimsíodh an t-ordú
point-sprite: no se encontró la orden
point-sprite: no s'ha trobat l'ordre
point-sprite: opdracht niet gevonden
point-sprite: parancs nem található
point-sprite: perintah tidak ditemukan
point-sprite: príkaz nenájdený
point-sprite: příkaz nenalezen
point-sprite: команда не найдена
point-sprite: командата не е открита
point-sprite: 命令找不到
point-sprite: コマンドが見つかりません