protected void recalcWarpAmount() { if (inRate == 0f) return; double omegaIn, omegaOut, warp, d1; ParamField ggWarp; omegaIn = pr.para[PR_INFREQ].val / inRate * Constants.PI2; omegaOut = pr.para[PR_OUTFREQ].val / inRate * Constants.PI2; d1 = Math.tan((omegaOut - omegaIn) / 2); warp = Math.max( -0.98, Math.min(0.98, d1 / (Math.sin(omegaIn) + Math.cos(omegaIn) * d1))); // DAFx2000 'b' ggWarp = (ParamField) gui.getItemObj(GG_WARP); if (ggWarp != null) { ggWarp.setParam(new Param(warp * 100, Param.FACTOR)); } }