Differential D12017 Diff 39893 intern/cycles/kernel/integrator/integrator_subsurface.h

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intern/cycles/kernel/integrator/integrator_subsurface.h

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#include "kernel/bvh/bvh.h"		#include "kernel/bvh/bvh.h"

#include "kernel/closure/alloc.h"		#include "kernel/closure/alloc.h"
#include "kernel/closure/bsdf_diffuse.h"		#include "kernel/closure/bsdf_diffuse.h"
#include "kernel/closure/bsdf_principled_diffuse.h"		#include "kernel/closure/bsdf_principled_diffuse.h"
#include "kernel/closure/bssrdf.h"		#include "kernel/closure/bssrdf.h"
#include "kernel/closure/volume.h"		#include "kernel/closure/volume.h"

		#include "kernel/integrator/integrator_intersect_volume_stack.h"

CCL_NAMESPACE_BEGIN		CCL_NAMESPACE_BEGIN

#ifdef __SUBSURFACE__		#ifdef __SUBSURFACE__

/* TODO: restore or remove this.		/* TODO: restore or remove this.
* If we reevaluate the shader for the normal and color, it should happen in		* If we reevaluate the shader for the normal and color, it should happen in
* the shade_surface kernel. */		* the shade_surface kernel. */

▲ Show 20 Lines • Show All 257 Lines • ▼ Show 20 Lines	ccl_device_inline bool subsurface_random_walk(INTEGRATOR_STATE_ARGS)
}		}

# ifndef __KERNEL_OPTIX__		# ifndef __KERNEL_OPTIX__
/* Compute or fetch object transforms. */		/* Compute or fetch object transforms. */
Transform ob_itfm ccl_optional_struct_init;		Transform ob_itfm ccl_optional_struct_init;
Transform ob_tfm = object_fetch_transform_motion_test(kg, object, time, &ob_itfm);		Transform ob_tfm = object_fetch_transform_motion_test(kg, object, time, &ob_itfm);
# endif		# endif

		const float3 ray_start_P = ray_offset(P, -Ng);

/* Setup ray. */		/* Setup ray. */
Ray ray ccl_optional_struct_init;		Ray ray ccl_optional_struct_init;
ray.P = ray_offset(P, -Ng);		ray.P = ray_start_P;
ray.D = D;		ray.D = D;
ray.t = FLT_MAX;		ray.t = FLT_MAX;
ray.time = time;		ray.time = time;
ray.dP = ray_dP;		ray.dP = ray_dP;
ray.dD = differential_zero_compact();		ray.dD = differential_zero_compact();

/* Setup intersections.		/* Setup intersections.
* TODO: make this more compact if we don't bring back disk based SSS that needs		* TODO: make this more compact if we don't bring back disk based SSS that needs
▲ Show 20 Lines • Show All 205 Lines • ▼ Show 20 Lines	# endif

kernel_assert(isfinite3_safe(throughput));		kernel_assert(isfinite3_safe(throughput));

/* Return number of hits in ss_isect. */		/* Return number of hits in ss_isect. */
if (!hit) {		if (!hit) {
return false;		return false;
}		}

		# ifdef __VOLUME__
		/* Update volume stack if needed. */
		if (kernel_data.integrator.use_volumes) {
		const int object = intersection_get_object(kg, &ss_isect.hits[0]);
		const int object_flag = kernel_tex_fetch(__object_flag, object);

		if (object_flag & SD_OBJECT_INTERSECTS_VOLUME) {
		integrator_volume_stack_update_for_subsurface(INTEGRATOR_STATE_PASS, ray_start_P, ray.P);
		}
		}
		# endif /* __VOLUME__ */

/* Pretend ray is coming from the outside towards the exit point. This ensures		/* Pretend ray is coming from the outside towards the exit point. This ensures
* correct front/back facing normals.		* correct front/back facing normals.
* TODO: find a more elegant solution? */		* TODO: find a more elegant solution? */
ray.P += ray.D * ray.t * 2.0f;		ray.P += ray.D * ray.t * 2.0f;
ray.D = -ray.D;		ray.D = -ray.D;

integrator_state_write_isect(INTEGRATOR_STATE_PASS, &ss_isect.hits[0]);		integrator_state_write_isect(INTEGRATOR_STATE_PASS, &ss_isect.hits[0]);
integrator_state_write_ray(INTEGRATOR_STATE_PASS, &ray);		integrator_state_write_ray(INTEGRATOR_STATE_PASS, &ray);
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