diff options
Diffstat (limited to 'intern/cycles/kernel/kernel_path.h')
| -rw-r--r-- | intern/cycles/kernel/kernel_path.h | 37 |
1 files changed, 21 insertions, 16 deletions
diff --git a/intern/cycles/kernel/kernel_path.h b/intern/cycles/kernel/kernel_path.h index 585068ce8e2..195291898c6 100644 --- a/intern/cycles/kernel/kernel_path.h +++ b/intern/cycles/kernel/kernel_path.h @@ -331,10 +331,13 @@ __device float4 kernel_path_progressive(KernelGlobals *kg, RNG *rng, int sample, float bsdf_u = path_rng(kg, rng, sample, rng_offset + PRNG_BSDF_U); float bsdf_v = path_rng(kg, rng, sample, rng_offset + PRNG_BSDF_V); + float ao_factor = kernel_data.background.ao_factor; + float3 ao_N; + float3 ao_bsdf = shader_bsdf_ao(kg, &sd, ao_factor, &ao_N); float3 ao_D; float ao_pdf; - sample_cos_hemisphere(sd.N, bsdf_u, bsdf_v, &ao_D, &ao_pdf); + sample_cos_hemisphere(ao_N, bsdf_u, bsdf_v, &ao_D, &ao_pdf); if(dot(sd.Ng, ao_D) > 0.0f && ao_pdf != 0.0f) { Ray light_ray; @@ -347,11 +350,8 @@ __device float4 kernel_path_progressive(KernelGlobals *kg, RNG *rng, int sample, light_ray.time = sd.time; #endif - if(!shadow_blocked(kg, &state, &light_ray, &ao_shadow)) { - float3 ao_bsdf = shader_bsdf_diffuse(kg, &sd)*kernel_data.background.ao_factor; - ao_bsdf += shader_bsdf_ao(kg, &sd); + if(!shadow_blocked(kg, &state, &light_ray, &ao_shadow)) path_radiance_accum_ao(&L, throughput, ao_bsdf, ao_shadow, state.bounce); - } } } #endif @@ -424,7 +424,12 @@ __device float4 kernel_path_progressive(KernelGlobals *kg, RNG *rng, int sample, /* setup ray */ ray.P = ray_offset(sd.P, (label & LABEL_TRANSMIT)? -sd.Ng: sd.Ng); ray.D = bsdf_omega_in; - ray.t = FLT_MAX; + + if(state.bounce == 0) + ray.t -= sd.ray_length; /* clipping works through transparent */ + else + ray.t = FLT_MAX; + #ifdef __RAY_DIFFERENTIALS__ ray.dP = sd.dP; ray.dD = bsdf_domega_in; @@ -509,10 +514,13 @@ __device void kernel_path_indirect(KernelGlobals *kg, RNG *rng, int sample, Ray float bsdf_u = path_rng(kg, rng, sample, rng_offset + PRNG_BSDF_U); float bsdf_v = path_rng(kg, rng, sample, rng_offset + PRNG_BSDF_V); + float ao_factor = kernel_data.background.ao_factor; + float3 ao_N; + float3 ao_bsdf = shader_bsdf_ao(kg, &sd, ao_factor, &ao_N); float3 ao_D; float ao_pdf; - sample_cos_hemisphere(sd.N, bsdf_u, bsdf_v, &ao_D, &ao_pdf); + sample_cos_hemisphere(ao_N, bsdf_u, bsdf_v, &ao_D, &ao_pdf); if(dot(sd.Ng, ao_D) > 0.0f && ao_pdf != 0.0f) { Ray light_ray; @@ -525,11 +533,8 @@ __device void kernel_path_indirect(KernelGlobals *kg, RNG *rng, int sample, Ray light_ray.time = sd.time; #endif - if(!shadow_blocked(kg, &state, &light_ray, &ao_shadow)) { - float3 ao_bsdf = shader_bsdf_diffuse(kg, &sd)*kernel_data.background.ao_factor; - ao_bsdf += shader_bsdf_ao(kg, &sd); + if(!shadow_blocked(kg, &state, &light_ray, &ao_shadow)) path_radiance_accum_ao(L, throughput, ao_bsdf, ao_shadow, state.bounce); - } } } #endif @@ -712,6 +717,8 @@ __device float4 kernel_path_non_progressive(KernelGlobals *kg, RNG *rng, int sam int num_samples = kernel_data.integrator.ao_samples; float num_samples_inv = 1.0f/num_samples; float ao_factor = kernel_data.background.ao_factor; + float3 ao_N; + float3 ao_bsdf = shader_bsdf_ao(kg, &sd, ao_factor, &ao_N); for(int j = 0; j < num_samples; j++) { /* todo: solve correlation */ @@ -721,7 +728,7 @@ __device float4 kernel_path_non_progressive(KernelGlobals *kg, RNG *rng, int sam float3 ao_D; float ao_pdf; - sample_cos_hemisphere(sd.N, bsdf_u, bsdf_v, &ao_D, &ao_pdf); + sample_cos_hemisphere(ao_N, bsdf_u, bsdf_v, &ao_D, &ao_pdf); if(dot(sd.Ng, ao_D) > 0.0f && ao_pdf != 0.0f) { Ray light_ray; @@ -734,11 +741,8 @@ __device float4 kernel_path_non_progressive(KernelGlobals *kg, RNG *rng, int sam light_ray.time = sd.time; #endif - if(!shadow_blocked(kg, &state, &light_ray, &ao_shadow)) { - float3 ao_bsdf = shader_bsdf_diffuse(kg, &sd)*ao_factor; - ao_bsdf += shader_bsdf_ao(kg, &sd); + if(!shadow_blocked(kg, &state, &light_ray, &ao_shadow)) path_radiance_accum_ao(&L, throughput*num_samples_inv, ao_bsdf, ao_shadow, state.bounce); - } } } } @@ -888,6 +892,7 @@ __device float4 kernel_path_non_progressive(KernelGlobals *kg, RNG *rng, int sam path_state_next(kg, &state, LABEL_TRANSPARENT); ray.P = ray_offset(sd.P, -sd.Ng); + ray.t -= sd.ray_length; /* clipping works through transparent */ } float3 L_sum = path_radiance_sum(kg, &L); |