kernel/closure/volume.h File Reference

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Classes
struct	HenyeyGreensteinVolume

Typedefs
typedef ccl_addr_space struct HenyeyGreensteinVolume	HenyeyGreensteinVolume

Functions
CCL_NAMESPACE_BEGIN ccl_device void	volume_extinction_setup (ShaderData *sd, float3 weight)
ccl_device float	single_peaked_henyey_greenstein (float cos_theta, float g)
ccl_device int	volume_henyey_greenstein_setup (HenyeyGreensteinVolume *volume)
ccl_device bool	volume_henyey_greenstein_merge (const ShaderClosure *a, const ShaderClosure *b)
ccl_device float3	volume_henyey_greenstein_eval_phase (const ShaderClosure *sc, const float3 I, float3 omega_in, float *pdf)
ccl_device float3	henyey_greenstrein_sample (float3 D, float g, float randu, float randv, float *pdf)
ccl_device int	volume_henyey_greenstein_sample (const ShaderClosure *sc, float3 I, float3 dIdx, float3 dIdy, float randu, float randv, float3 *eval, float3 *omega_in, float3 *domega_in_dx, float3 *domega_in_dy, float *pdf)
ccl_device float3	volume_phase_eval (const ShaderData *sd, const ShaderClosure *sc, float3 omega_in, float *pdf)
ccl_device int	volume_phase_sample (const ShaderData *sd, const ShaderClosure *sc, float randu, float randv, float3 *eval, float3 *omega_in, differential3 *domega_in, float *pdf)

Typedef Documentation

HenyeyGreensteinVolume

typedef ccl_addr_space struct HenyeyGreensteinVolume HenyeyGreensteinVolume

Function Documentation

henyey_greenstrein_sample()

ccl_device float3 henyey_greenstrein_sample	(	float3	D,
		float	g,
		float	randu,
		float	randv,
		float *	pdf
	)

Definition at line 94 of file kernel/closure/volume.h.

References B, cosf, D(), fabsf, M_1_PI_F, M_2PI_F, make_float3, make_orthonormals(), safe_sqrtf(), sinf, single_peaked_henyey_greenstein(), T, float3::x, float3::y, and float3::z.

Referenced by volume_henyey_greenstein_sample().

single_peaked_henyey_greenstein()

ccl_device float single_peaked_henyey_greenstein	(	float	cos_theta,
		float	g
	)

Definition at line 49 of file kernel/closure/volume.h.

References M_1_PI_F, and safe_powf().

Referenced by henyey_greenstrein_sample(), and volume_henyey_greenstein_eval_phase().

volume_extinction_setup()

CCL_NAMESPACE_BEGIN ccl_device void volume_extinction_setup	(	ShaderData *	sd,
		float3	weight
	)

Definition at line 24 of file kernel/closure/volume.h.

References SD_EXTINCTION.

Referenced by VolumeAbsorptionClosure::setup(), VolumeHenyeyGreensteinClosure::setup(), svm_node_closure_volume(), and svm_node_principled_volume().

volume_henyey_greenstein_eval_phase()

ccl_device float3 volume_henyey_greenstein_eval_phase	(	const ShaderClosure *	sc,
		const float3	I,
		float3	omega_in,
		float *	pdf
	)

Definition at line 73 of file kernel/closure/volume.h.

References dot(), fabsf, HenyeyGreensteinVolume::g, I, M_1_PI_F, make_float3, and single_peaked_henyey_greenstein().

Referenced by bsdf_eval(), and volume_phase_eval().

volume_henyey_greenstein_merge()

ccl_device bool volume_henyey_greenstein_merge	(	const ShaderClosure *	a,
		const ShaderClosure *	b
	)

Definition at line 65 of file kernel/closure/volume.h.

References Freestyle::a, and HenyeyGreensteinVolume::g.

Referenced by bsdf_merge().

volume_henyey_greenstein_sample()

ccl_device int volume_henyey_greenstein_sample	(	const ShaderClosure *	sc,
		float3	I,
		float3	dIdx,
		float3	dIdy,
		float	randu,
		float	randv,
		float3 *	eval,
		float3 *	omega_in,
		float3 *	domega_in_dx,
		float3 *	domega_in_dy,
		float *	pdf
	)

Definition at line 125 of file kernel/closure/volume.h.

References HenyeyGreensteinVolume::g, henyey_greenstrein_sample(), I, LABEL_VOLUME_SCATTER, and make_float3.

Referenced by bsdf_sample(), and volume_phase_sample().

volume_henyey_greenstein_setup()

ccl_device int volume_henyey_greenstein_setup

(

HenyeyGreensteinVolume *

volume

)

Definition at line 55 of file kernel/closure/volume.h.

References CLOSURE_VOLUME_HENYEY_GREENSTEIN_ID, fabsf, HenyeyGreensteinVolume::g, min, SD_SCATTER, and signf().

Referenced by VolumeHenyeyGreensteinClosure::setup(), svm_node_closure_volume(), and svm_node_principled_volume().

volume_phase_eval()

ccl_device float3 volume_phase_eval	(	const ShaderData *	sd,
		const ShaderClosure *	sc,
		float3	omega_in,
		float *	pdf
	)

Definition at line 155 of file kernel/closure/volume.h.

References CLOSURE_VOLUME_HENYEY_GREENSTEIN_ID, kernel_assert, and volume_henyey_greenstein_eval_phase().

volume_phase_sample()

ccl_device int volume_phase_sample	(	const ShaderData *	sd,
		const ShaderClosure *	sc,
		float	randu,
		float	randv,
		float3 *	eval,
		float3 *	omega_in,
		differential3 *	domega_in,
		float *	pdf
	)

Definition at line 165 of file kernel/closure/volume.h.

References CLOSURE_VOLUME_HENYEY_GREENSTEIN_ID, differential3::dx, differential3::dy, label, LABEL_NONE, make_float3, and volume_henyey_greenstein_sample().