Method for visualizing a medical image data set, wherein the visualized data set displays a three-dimensional arrangement having at least a first object and a second object, the first and the second object respectively extending in all three directions in space, comprising the steps: - providing a three-dimensional image data set including first voxels being assigned to the first object and second voxels being assigned to the second object; - identifying first voxels of the three-dimensional image data set; - determining a set of parameters for a volume rendering method, wherein the set of parameters includes a subset of parameters and a focusing parameter; - identifying primary rays that impact on the first object and secondary rays that miss the first object; and - performing the volume rendering method, in particular a path tracing method, using the subset of parameters for visualizing the first object and the second object, wherein for an object related focusing the focusing parameter used for the primary rays in the volume rendering method is different from the focusing parameter used for the secondary rays in the volume rendering method such that a focused presentation of the whole first object is enabled, characterised in that the focusing parameter is an aperture size, wherein the aperture size for the primary rays is set to zero in the volume rendering method, wherein the aperture size of the secondary rays is set to a value different from zero, in particular depending on the distance to the primary rays. - providing a three-dimensional image data set including first voxels being assigned to the first object and second voxels being assigned to the second object; - identifying first voxels of the three-dimensional image data set; - determining a set of parameters for a volume rendering method, wherein the set of parameters includes a subset of parameters and a focusing parameter; - identifying primary rays that impact on the first object and secondary rays that miss the first object; and - performing the volume rendering method, in particular a path tracing method, using the subset of parameters for visualizing the first object and the second object, wherein for an object related focusing the focusing parameter used for the primary rays in the volume rendering method is different from the focusing parameter used for the secondary rays in the volume rendering method such that a focused presentation of the whole first object is enabled, characterised in that the focusing parameter is an aperture size, wherein the aperture size for the primary rays is set to zero in the volume rendering method, wherein the aperture size of the secondary rays is set to a value different from zero, in particular depending on the distance to the primary rays. - identifying first voxels of the three-dimensional image data set; - determining a set of parameters for a volume rendering method, wherein the set of parameters includes a subset of parameters and a focusing parameter; - identifying primary rays that impact on the first object and secondary rays that miss the first object; and - performing the volume rendering method, in particular a path tracing method, using the subset of parameters for visualizing the first object and the second object, wherein for an object related focusing the focusing parameter used for the primary rays in the volume rendering method is different from the focusing parameter used for the secondary rays in the volume rendering method such that a focused presentation of the whole first object is enabled, characterised in that the focusing parameter is an aperture size, wherein the aperture size for the primary rays is set to zero in the volume rendering method, wherein the aperture size of the secondary rays is set to a value different from zero, in particular depending on the distance to the primary rays. wherein for an object related focusing the focusing parameter used for the primary rays in the volume rendering method is different from the focusing parameter used for the secondary rays in the volume rendering method such that a focused presentation of the whole first object is enabled, characterised in that the focusing parameter is an aperture size, wherein the aperture size for the primary rays is set to zero in the volume rendering method, wherein the aperture size of the secondary rays is set to a value different from zero, in particular depending on the distance to the primary rays.