How to Get Rid of Blotches
SU Podium V2.5 Plus presets are calibrated to be as fast as possible. Unfortunately, some imperfections such as blotches or unexpected corner shadowing will sometimes appear in the rendered image. These anomalies can appear quite randomly especially on non-texture pale surface, corners and low polygon geometry scenes. Those imperfections are caused by the lower quality and precision of the Podium V2.5 Plus preset.
Please read about Presets here.
The _high and _QMC presets for bother interior and exterior are made especially to overcome this issue. Typically blotches happens in interior scenes. But both preset cost's are a substantially slower rendering time. The _high preset is faster than _QMC.
xxx_high for both exterior and interior presets, is a new preset that has provides substantially higher quality that the default or AA presets. _high preset usually removes blotches and black spots caused by mistakes in irridience caching. (Read about irridience caching and other important details about presets here. )
QMC is an unbiased presets so is extremely accurate but due to time throttle put on it, QMC can also produce a more grainy image. To overcome the graininess of QMC presets, it is recommended that you render at a higher pixel resolution than you need and re size the image after it is completed. For example, render at double the resolution size you want and then scale down the final image to the size you desire.
The preset _high or QMC will solve most of blotches and artifices. If they are still appearing with the _high or _QMC presets, please contact us.