Differential D1264 Diff 4081 intern/cycles/kernel/kernel_path.h

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	Ray *ray,	Ray *ray,
	VolumeStack *stack)	VolumeStack *stack)
	{	{
		#define MAX_VOLUME_HITS (VOLUME_STACK_SIZE) /* no 2 multiplication? /

	kernel_assert(kernel_data.integrator.use_volumes);	kernel_assert(kernel_data.integrator.use_volumes);

	Ray volume_ray = *ray;	Ray volume_ray = *ray;
	Intersection isect;
	int step = 0;
	while(step < VOLUME_STACK_SIZE &&
	scene_intersect_volume(kg, &volume_ray, &isect))
	{
	ShaderData sd;
	shader_setup_from_ray(kg, &sd, &isect, &volume_ray, 0, 0);
	kernel_volume_stack_enter_exit(kg, &sd, stack);

	/* Move ray forward. */	Intersection hits[MAX_VOLUME_HITS];
	volume_ray.P = ray_offset(sd.P, -sd.Ng);	uint num_hits = scene_intersect_volume_all(kg,
	volume_ray.t -= sd.ray_length;	&volume_ray,
	++step;	hits,
		MAX_VOLUME_HITS);
		if(num_hits > 0) {
		Intersection *isect = hits;

		for(uint hit = 0; hit < num_hits; ++hit, ++isect) {
		ShaderData sd;
		shader_setup_from_ray(kg, &sd, isect, &volume_ray, 0, 0);
		kernel_volume_stack_enter_exit(kg, &sd, stack);
		}
	}	}
		#undef MAX_VOLUME_HITS
	}	}
	#endif	#endif

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