clean composeImages by creating a version that doesnt use depth buffer
some cleanups
compositor tuning
read-back optimizations
+tuned read-back and dd
+tuned read-back and dd
guarded some glFinish() code
added hfac option to the renderer
cleanup
+1
optimized fp16->32
fix float4->short
fix
fix artifacts due ot fp32->fp16 conversion
added cvtps2ph option with make .. AVX11=1
renamed AVX11->F16C
use make .. FP32=1 to enable 32-bit colours/compositing
added non-blocking compositing & openngl
vix for size/crd/vieworder
do not copy read-back buffer to host, just use it as is since it is passed MPI_Alltoallv anyway