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Code cleanup: move rng into path state.

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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.
This commit is contained in:
Brecht Van Lommel
2017-08-19 04:11:25 +02:00
parent 1cc4033df8
commit cfa8b762e2
28 changed files with 192 additions and 271 deletions
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6
intern/cycles/kernel/kernel_shader.h
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@@ -863,7 +863,7 @@ ccl_device float3 shader_holdout_eval(KernelGlobals *kg, ShaderData *sd)
/* Surface Evaluation */
ccl_device void shader_eval_surface(KernelGlobals *kg, ShaderData *sd, RNG *rng,
ccl_device void shader_eval_surface(KernelGlobals *kg, ShaderData *sd,
ccl_addr_space PathState *state, float randb, int path_flag, ShaderContext ctx)
{
sd->num_closure = 0;
@@ -887,8 +887,8 @@ ccl_device void shader_eval_surface(KernelGlobals *kg, ShaderData *sd, RNG *rng,
#endif
}
if(rng && (sd->flag & SD_BSDF_NEEDS_LCG)) {
sd->lcg_state = lcg_state_init(rng, state->rng_offset, state->sample, 0xb4bc3953);
if(sd->flag & SD_BSDF_NEEDS_LCG) {
sd->lcg_state = lcg_state_init(state, 0xb4bc3953);
}
}