diff options
Diffstat (limited to 'intern/cycles/kernel/integrator/shade_surface.h')
| -rw-r--r-- | intern/cycles/kernel/integrator/shade_surface.h | 63 |
1 files changed, 29 insertions, 34 deletions
diff --git a/intern/cycles/kernel/integrator/shade_surface.h b/intern/cycles/kernel/integrator/shade_surface.h index 57b88b806a4..1514b3956ad 100644 --- a/intern/cycles/kernel/integrator/shade_surface.h +++ b/intern/cycles/kernel/integrator/shade_surface.h @@ -77,7 +77,7 @@ ccl_device_forceinline void integrate_surface_emission(KernelGlobals kg, # endif { const float bsdf_pdf = INTEGRATOR_STATE(state, path, mis_ray_pdf); - const float t = sd->ray_length + INTEGRATOR_STATE(state, path, mis_ray_t); + const float t = sd->ray_length; /* Multiple importance sampling, get triangle light pdf, * and compute weight with respect to BSDF pdf. */ @@ -190,8 +190,8 @@ ccl_device_forceinline void integrate_surface_direct_light(KernelGlobals kg, const bool is_light = light_sample_is_light(&ls); /* Branch off shadow kernel. */ - INTEGRATOR_SHADOW_PATH_INIT( - shadow_state, state, DEVICE_KERNEL_INTEGRATOR_INTERSECT_SHADOW, shadow); + IntegratorShadowState shadow_state = integrator_shadow_path_init( + kg, state, DEVICE_KERNEL_INTEGRATOR_INTERSECT_SHADOW, false); /* Copy volume stack and enter/exit volume. */ integrator_state_copy_volume_stack_to_shadow(kg, shadow_state, state); @@ -323,16 +323,21 @@ ccl_device_forceinline int integrate_surface_bsdf_bssrdf_bounce( return LABEL_NONE; } - /* Setup ray. Note that clipping works through transparent bounces. */ - INTEGRATOR_STATE_WRITE(state, ray, P) = sd->P; - INTEGRATOR_STATE_WRITE(state, ray, D) = normalize(bsdf_omega_in); - INTEGRATOR_STATE_WRITE(state, ray, t) = (label & LABEL_TRANSPARENT) ? - INTEGRATOR_STATE(state, ray, t) - sd->ray_length : - FLT_MAX; + if (label & LABEL_TRANSPARENT) { + /* Only need to modify start distance for transparent. */ + INTEGRATOR_STATE_WRITE(state, ray, tmin) = intersection_t_offset(sd->ray_length); + } + else { + /* Setup ray with changed origin and direction. */ + INTEGRATOR_STATE_WRITE(state, ray, P) = sd->P; + INTEGRATOR_STATE_WRITE(state, ray, D) = normalize(bsdf_omega_in); + INTEGRATOR_STATE_WRITE(state, ray, tmin) = 0.0f; + INTEGRATOR_STATE_WRITE(state, ray, tmax) = FLT_MAX; #ifdef __RAY_DIFFERENTIALS__ - INTEGRATOR_STATE_WRITE(state, ray, dP) = differential_make_compact(sd->dP); - INTEGRATOR_STATE_WRITE(state, ray, dD) = differential_make_compact(bsdf_domega_in); + INTEGRATOR_STATE_WRITE(state, ray, dP) = differential_make_compact(sd->dP); + INTEGRATOR_STATE_WRITE(state, ray, dD) = differential_make_compact(bsdf_domega_in); #endif + } /* Update throughput. */ float3 throughput = INTEGRATOR_STATE(state, path, throughput); @@ -349,12 +354,8 @@ ccl_device_forceinline int integrate_surface_bsdf_bssrdf_bounce( } /* Update path state */ - if (label & LABEL_TRANSPARENT) { - INTEGRATOR_STATE_WRITE(state, path, mis_ray_t) += sd->ray_length; - } - else { + if (!(label & LABEL_TRANSPARENT)) { INTEGRATOR_STATE_WRITE(state, path, mis_ray_pdf) = bsdf_pdf; - INTEGRATOR_STATE_WRITE(state, path, mis_ray_t) = 0.0f; INTEGRATOR_STATE_WRITE(state, path, min_ray_pdf) = fminf( bsdf_pdf, INTEGRATOR_STATE(state, path, min_ray_pdf)); } @@ -371,17 +372,8 @@ ccl_device_forceinline int integrate_surface_volume_only_bounce(IntegratorState return LABEL_NONE; } - /* Setup ray position, direction stays unchanged. */ - INTEGRATOR_STATE_WRITE(state, ray, P) = sd->P; - - /* Clipping works through transparent. */ - INTEGRATOR_STATE_WRITE(state, ray, t) -= sd->ray_length; - -# ifdef __RAY_DIFFERENTIALS__ - INTEGRATOR_STATE_WRITE(state, ray, dP) = differential_make_compact(sd->dP); -# endif - - INTEGRATOR_STATE_WRITE(state, path, mis_ray_t) += sd->ray_length; + /* Only modify start distance. */ + INTEGRATOR_STATE_WRITE(state, ray, tmin) = intersection_t_offset(sd->ray_length); return LABEL_TRANSMIT | LABEL_TRANSPARENT; } @@ -432,7 +424,8 @@ ccl_device_forceinline void integrate_surface_ao(KernelGlobals kg, Ray ray ccl_optional_struct_init; ray.P = shadow_ray_offset(kg, sd, ao_D, &skip_self); ray.D = ao_D; - ray.t = kernel_data.integrator.ao_bounces_distance; + ray.tmin = 0.0f; + ray.tmax = kernel_data.integrator.ao_bounces_distance; ray.time = sd->time; ray.self.object = (skip_self) ? sd->object : OBJECT_NONE; ray.self.prim = (skip_self) ? sd->prim : PRIM_NONE; @@ -442,7 +435,8 @@ ccl_device_forceinline void integrate_surface_ao(KernelGlobals kg, ray.dD = differential_zero_compact(); /* Branch off shadow kernel. */ - INTEGRATOR_SHADOW_PATH_INIT(shadow_state, state, DEVICE_KERNEL_INTEGRATOR_INTERSECT_SHADOW, ao); + IntegratorShadowState shadow_state = integrator_shadow_path_init( + kg, state, DEVICE_KERNEL_INTEGRATOR_INTERSECT_SHADOW, true); /* Copy volume stack and enter/exit volume. */ integrator_state_copy_volume_stack_to_shadow(kg, shadow_state, state); @@ -604,22 +598,23 @@ ccl_device bool integrate_surface(KernelGlobals kg, } template<uint node_feature_mask = KERNEL_FEATURE_NODE_MASK_SURFACE & ~KERNEL_FEATURE_NODE_RAYTRACE, - int current_kernel = DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE> + DeviceKernel current_kernel = DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE> ccl_device_forceinline void integrator_shade_surface(KernelGlobals kg, IntegratorState state, ccl_global float *ccl_restrict render_buffer) { if (integrate_surface<node_feature_mask>(kg, state, render_buffer)) { if (INTEGRATOR_STATE(state, path, flag) & PATH_RAY_SUBSURFACE) { - INTEGRATOR_PATH_NEXT(current_kernel, DEVICE_KERNEL_INTEGRATOR_INTERSECT_SUBSURFACE); + integrator_path_next( + kg, state, current_kernel, DEVICE_KERNEL_INTEGRATOR_INTERSECT_SUBSURFACE); } else { - kernel_assert(INTEGRATOR_STATE(state, ray, t) != 0.0f); - INTEGRATOR_PATH_NEXT(current_kernel, DEVICE_KERNEL_INTEGRATOR_INTERSECT_CLOSEST); + kernel_assert(INTEGRATOR_STATE(state, ray, tmax) != 0.0f); + integrator_path_next(kg, state, current_kernel, DEVICE_KERNEL_INTEGRATOR_INTERSECT_CLOSEST); } } else { - INTEGRATOR_PATH_TERMINATE(current_kernel); + integrator_path_terminate(kg, state, current_kernel); } } |