DrawNode: drawCircle: performance enhancement

[aismann]

Drawing 500 solid circles (same radius):
Compare the "Vertices Counter" between v2.0 and v3.0:

Drawing 500 solid circles (random radius):

[aismann]

moved to discussion

[aismann]

[aismann]

Performance/Render quality compare:

DrawNode 3.0:

float radius = 300.0f; 
drawNode->drawSolidCircle(pos, radius , Color4F::GRAY);

DrawNode 2.0:

float radius = 300.0f; 
drawNode->drawSolidCircle(pos, radius, 0, 36, Color4F::GRAY);

[aismann]

200000 solid cirles, radius 10:
Please compare creation time, used vertices and vsync time: