For some reason I smudge my render just fine but when i go to set it to Color Dodge ot looks like this. What might be the problem and how can I fix it.
Can you show us what it's supposed to look like when it's on colour dodge? Play around in Brush Settings, etc.
Do you mean the color or the blue box around it? just tweak contrast and brightness i'd say if its just the look of it..but idk.
