Cycles OpenCL: Split baking kernels in own program
Fix T61463. Before this patch baking was part of the base kernels. There
are 3 baking kernels that and all 3 uses shader evaluation. Only for one
of these kernels the functionality was wrapped in the NO_BAKING
compile directive.
When you start baking this leads to long compile times. By separating
in individual programs will reduce the compile times.
Also wrapped all baking kernels with NO_BAKING to reduce the
compilation times.
Impact on compilation time
job | scene_name | previous | new | percentage --------+-----------------+----------+-------+------------ T61463 | empty | 10.63 | 7.27 | 32% T61463 | bmw | 17.91 | 14.24 | 20% T61463 | fishycat | 19.57 | 15.08 | 23% T61463 | barbershop | 54.10 | 48.18 | 11% T61463 | classroom | 17.55 | 14.42 | 18% T61463 | koro | 18.92 | 17.15 | 9% T61463 | pavillion | 17.43 | 14.23 | 18% T61463 | splash279 | 16.48 | 15.33 | 7% T61463 | volume_emission | 36.22 | 34.19 | 6%
Impact on render time
job | scene_name | previous | new | percentage --------+-----------------+----------+---------+------------ T61463 | empty | 21.06 | 20.54 | 2% T61463 | bmw | 198.44 | 189.59 | 4% T61463 | fishycat | 394.20 | 388.50 | 1% T61463 | barbershop | 1188.16 | 1185.49 | 0% T61463 | classroom | 341.08 | 339.27 | 1% T61463 | koro | 472.43 | 360.70 | 24% T61463 | pavillion | 905.77 | 902.14 | 0% T61463 | splash279 | 55.26 | 54.92 | 1% T61463 | volume_emission | 62.59 | 39.09 | 38%
I don't have a grounded explanation why koro and volume_emission is this much
faster; I have done several tests though...