fillOneUnit method
Implementation
void fillOneUnit(Float32List rstTransforms, Float32List rect, int color) {
final index0 = currentIndex;
final index1 = index0 + 1;
final index2 = index0 + 2;
final index3 = index0 + 3;
rawTransforms[index0] = rstTransforms[iscos];
rawTransforms[index1] = rstTransforms[issin];
rawTransforms[index2] = rstTransforms[itx];
rawTransforms[index3] = rstTransforms[ity];
rawSources[index0] = rect[0];
rawSources[index1] = rect[1];
rawSources[index2] = rect[2];
rawSources[index3] = rect[3];
rawColors[_rectCount] = color;
_rectCount++;
}