diff options
| author | Brecht Van Lommel <brechtvanlommel@gmail.com> | 2017-08-19 05:11:25 +0300 |
|---|---|---|
| committer | Brecht Van Lommel <brechtvanlommel@gmail.com> | 2017-08-19 19:14:16 +0300 |
| commit | cfa8b762e20dce2e59aff5dffed872a9e3631f3c (patch) | |
| tree | 60af71217099a654f1ced2de0c6a730fbd9b0fdc /intern/cycles/kernel/kernel_volume.h | |
| parent | 1cc4033df8d7fdd87bc1be14e265ab77f0713e54 (diff) | |
Code cleanup: move rng into path state.
Also pass by value and don't write back now that it is just a hash for seeding
and no longer an LCG state. Together this makes CUDA a tiny bit faster in my
tests, but mainly simplifies code.
Diffstat (limited to 'intern/cycles/kernel/kernel_volume.h')
| -rw-r--r-- | intern/cycles/kernel/kernel_volume.h | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/intern/cycles/kernel/kernel_volume.h b/intern/cycles/kernel/kernel_volume.h index 1e472aaf51a..8dcfe7f5145 100644 --- a/intern/cycles/kernel/kernel_volume.h +++ b/intern/cycles/kernel/kernel_volume.h @@ -360,7 +360,6 @@ ccl_device VolumeIntegrateResult kernel_volume_integrate_homogeneous( ShaderData *sd, PathRadiance *L, ccl_addr_space float3 *throughput, - RNG *rng, bool probalistic_scatter) { VolumeShaderCoefficients coeff; @@ -380,13 +379,13 @@ ccl_device VolumeIntegrateResult kernel_volume_integrate_homogeneous( /* pick random color channel, we use the Veach one-sample * model with balance heuristic for the channels */ - float rphase = path_state_rng_1D_for_decision(kg, rng, state, PRNG_PHASE); + float rphase = path_state_rng_1D_for_decision(kg, state, PRNG_PHASE); int channel = (int)(rphase*3.0f); sd->randb_closure = rphase*3.0f - channel; /* decide if we will hit or miss */ bool scatter = true; - float xi = path_state_rng_1D_for_decision(kg, rng, state, PRNG_SCATTER_DISTANCE); + float xi = path_state_rng_1D_for_decision(kg, state, PRNG_SCATTER_DISTANCE); if(probalistic_scatter) { float sample_sigma_t = kernel_volume_channel_get(sigma_t, channel); @@ -468,8 +467,7 @@ ccl_device VolumeIntegrateResult kernel_volume_integrate_heterogeneous_distance( Ray *ray, ShaderData *sd, PathRadiance *L, - ccl_addr_space float3 *throughput, - RNG *rng) + ccl_addr_space float3 *throughput) { float3 tp = *throughput; const float tp_eps = 1e-6f; /* todo: this is likely not the right value */ @@ -485,8 +483,8 @@ ccl_device VolumeIntegrateResult kernel_volume_integrate_heterogeneous_distance( /* pick random color channel, we use the Veach one-sample * model with balance heuristic for the channels */ - float xi = path_state_rng_1D_for_decision(kg, rng, state, PRNG_SCATTER_DISTANCE); - float rphase = path_state_rng_1D_for_decision(kg, rng, state, PRNG_PHASE); + float xi = path_state_rng_1D_for_decision(kg, state, PRNG_SCATTER_DISTANCE); + float rphase = path_state_rng_1D_for_decision(kg, state, PRNG_PHASE); int channel = (int)(rphase*3.0f); sd->randb_closure = rphase*3.0f - channel; bool has_scatter = false; @@ -610,15 +608,14 @@ ccl_device_noinline VolumeIntegrateResult kernel_volume_integrate( Ray *ray, PathRadiance *L, ccl_addr_space float3 *throughput, - RNG *rng, bool heterogeneous) { shader_setup_from_volume(kg, sd, ray); if(heterogeneous) - return kernel_volume_integrate_heterogeneous_distance(kg, state, ray, sd, L, throughput, rng); + return kernel_volume_integrate_heterogeneous_distance(kg, state, ray, sd, L, throughput); else - return kernel_volume_integrate_homogeneous(kg, state, ray, sd, L, throughput, rng, true); + return kernel_volume_integrate_homogeneous(kg, state, ray, sd, L, throughput, true); } #ifndef __SPLIT_KERNEL__ |