html5-canvas,webgl,glteximage2d,globalcompositeoperation
Yes its called blendFunc and blendEquation. Check this out to learn more.
html5,canvas,globalcompositeoperation
You just need to change a little on the orders of things in the code - composite modes are really not needed in this case: All static elements like the sun and the earth orbit, can be rendered once and set as for example background to the element. Draw the...
html5,canvas,blending,globalcompositeoperation
Do I understand that the letters canvas the lib draws has an opaque (white) background rather than a transparent one? If so, any options for applying highlighting will be relatively poor in performance. Standard canvas compositing won't help as there is no blending mode that combines source-destination pixels. What you're...