I am new to blender and am currently trying to rig and animate a model of a simple cartoon duck. After creating an armature and assigning it to the model however, I found the automatic weights given were inappropriate, so decided to attempt to fix them using weight painting.
Once of the changes in particular that I wanted to make was to have the flat foot of the duck be fully affected by the foot bone. My problem is this: when trying to paint the foot all red, I get these strange blue streaks appearing:
I have tried painting over them with mixture/add brushes, with and without "limit selection to visible" checked, but it does not seem to make a difference.
Am I painting the weights incorrectly? Is it something to do with the way I have set up my armature or mesh? How can I solve this problem?
Vertex view of foot
Wireframe view of foot