In 1990 graduated from the Academy of Fine Arts in Ljubljana in the class of Professor Emerik Bernard.
In 1992 completed postgraduate studies of fine arts in the class of Professor Janez Bernik.
He is member of the Union of Slovene Fine Arts Associations.
Since 1997 he has taught painting and drawing at the Faculty of Education in Maribor, now as Full Professor.
He has travelled around Europe, Great Britain and the United States.
In 2004 he received the Prešeren Fund Award for the fine arts exhibition Illuminations.
Rimele is a painter, visual artist and author of visual spatial settings. He expresses himself with pure form and almost monocromatic colour expression.
As regards construction, his images are created is such a way as to enable radiation of colour light. The images are accurately placed into the space of the exposition area and achieve the creation of non-material colour communication: his images-objects enable the light of the space to pass into the light of the image, the silence and the inner sound of the image.
Rimele strives to achieve such a state of the visual image that will establish, in the interaction with the spectator and the space, the state of wholeness: the artistic image is here in order for the spectator to be able to become aware of himself again and enter the dimension of his non-materiality.
His work could be described as “spiritual minimalism” and corresponds, as regards the content, to the European spiritual tradition and contemporary authors such as Anish Kapoor, James Turell, Bill Viola, Arvo Pärt.
Recently, an important book of his artwork has been published, entitled Oto Rimele: Spirituality of Material Absence, which was written in co-operation with an important connoisseur of world art Professor Dr. Jure Mikuž.
He has presented himself to the audience in numerous individual and group expositions.