Methods and associated systems for improving the visual quality of
real-time interactive multimedia presentations, by blending 2-D image
data derived from a plurality of 3-D scene views associated with one or
more 3-D scenes in accordance with presentation data modifiable by user
input in real-time. The 2-D image data rendered from the perspective of
the individual scene views are blended together using an associated blend
mode in a back to front order producing a 2-D composite image for
projection on a display device to a user of the real-time interactive
multimedia presentation.