Blender: util_math_fast.h File Reference

Blender V2.93

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Functions
CCL_NAMESPACE_BEGIN ccl_device_inline float	madd (const float a, const float b, const float c)

ccl_device_inline float4	madd4 (const float4 a, const float4 b, const float4 c)

ccl_device_inline int	fast_rint (float x)

ccl_device float	fast_sinf (float x)

ccl_device float	fast_cosf (float x)

ccl_device void	fast_sincosf (float x, float sine, float cosine)

ccl_device float	fast_tanf (float x)

ccl_device float	fast_sinpif (float x)

ccl_device_inline float	fast_cospif (float x)

ccl_device float	fast_acosf (float x)

ccl_device float	fast_asinf (float x)

ccl_device float	fast_atanf (float x)

ccl_device float	fast_atan2f (float y, float x)

ccl_device float	fast_log2f (float x)

ccl_device_inline float	fast_logf (float x)

ccl_device_inline float	fast_log10 (float x)

ccl_device float	fast_logb (float x)

ccl_device float	fast_exp2f (float x)

ccl_device_inline float	fast_expf (float x)

ccl_device_inline float4	fast_expf4 (float4 x)

ccl_device_inline float	fast_exp10 (float x)

ccl_device_inline float	fast_expm1f (float x)

ccl_device float	fast_sinhf (float x)

ccl_device_inline float	fast_coshf (float x)

ccl_device_inline float	fast_tanhf (float x)

ccl_device float	fast_safe_powf (float x, float y)

ccl_device_inline float	fast_erff (float x)

ccl_device_inline float	fast_erfcf (float x)

ccl_device_inline float	fast_ierff (float x)

Function Documentation

◆ fast_acosf()

ccl_device float fast_acosf ( float x )

Definition at line 278 of file util_math_fast.h.

References Freestyle::a, fabsf, M_PI_F, sqrtf, and x.

Referenced by bsdf_hair_reflection_eval_reflect(), bsdf_hair_reflection_sample(), bsdf_hair_transmission_eval_transmit(), bsdf_hair_transmission_sample(), shift_cos_in(), triangle_light_pdf(), and triangle_light_sample().

◆ fast_asinf()

ccl_device float fast_asinf ( float x )

Definition at line 295 of file util_math_fast.h.

References Freestyle::a, copysignf, fabsf, M_PI_2_F, sqrtf, and x.

◆ fast_atan2f()

ccl_device float fast_atan2f	(	float	y,
		float	x
	)

Definition at line 329 of file util_math_fast.h.

References __float_as_uint(), Freestyle::a, copysignf, fabsf, M_PI_2_F, M_PI_F, madd(), r, t, x, and y.

Referenced by bsdf_hair_reflection_eval_reflect(), bsdf_hair_reflection_sample(), bsdf_hair_transmission_eval_transmit(), and bsdf_hair_transmission_sample().

◆ fast_atanf()

ccl_device float fast_atanf ( float x )

Definition at line 310 of file util_math_fast.h.

References Freestyle::a, copysignf, fabsf, M_PI_2_F, madd(), r, t, and x.

◆ fast_cosf()

ccl_device float fast_cosf ( float x )

Definition at line 131 of file util_math_fast.h.

References fabsf, fast_rint(), M_1_PI_F, M_PI_2_F, madd(), and x.

Referenced by bsdf_hair_reflection_eval_reflect(), bsdf_hair_reflection_sample(), and bsdf_hair_transmission_eval_transmit().

◆ fast_coshf()

ccl_device_inline float fast_coshf ( float x )

Definition at line 520 of file util_math_fast.h.

References e, fabsf, fast_expf(), and x.

◆ fast_cospif()

ccl_device_inline float fast_cospif ( float x )

Definition at line 273 of file util_math_fast.h.

References fast_sinpif(), and x.

◆ fast_erfcf()

ccl_device_inline float fast_erfcf ( float x )

Definition at line 603 of file util_math_fast.h.

References fast_erff(), and x.

◆ fast_erff()

ccl_device_inline float fast_erff ( float x )

Definition at line 579 of file util_math_fast.h.

References Freestyle::a, copysignf, fabsf, madd(), r, t, v, and x.

Referenced by fast_erfcf(), and microfacet_beckmann_sample_slopes().

◆ fast_exp10()

ccl_device_inline float fast_exp10 ( float x )

Definition at line 479 of file util_math_fast.h.

References fast_exp2f(), M_LN10_F, M_LN2_F, and x.

◆ fast_exp2f()

ccl_device float fast_exp2f ( float x )

Definition at line 413 of file util_math_fast.h.

References __float_as_uint(), __uint_as_float(), clamp(), madd(), r, and x.

Referenced by fast_exp10(), fast_expf(), and fast_safe_powf().

◆ fast_expf()

ccl_device_inline float fast_expf ( float x )

Definition at line 440 of file util_math_fast.h.

References fast_exp2f(), M_LN2_F, and x.

Referenced by fast_coshf(), fast_expf4(), fast_expm1f(), fast_sinhf(), fast_tanhf(), and kernel_filter_nlm_calc_weight().

◆ fast_expf4()

ccl_device_inline float4 fast_expf4 ( float4 x )

Definition at line 473 of file util_math_fast.h.

References fast_expf(), make_float4, and x.

Referenced by kernel_filter_nlm_calc_weight().

◆ fast_expm1f()

ccl_device_inline float fast_expm1f ( float x )

Definition at line 487 of file util_math_fast.h.

References fabsf, fast_expf(), madd(), and x.

◆ fast_ierff()

ccl_device_inline float fast_ierff ( float x )

Definition at line 614 of file util_math_fast.h.

References Freestyle::a, fabsf, fast_logf(), madd(), sqrtf, w(), and x.

Referenced by microfacet_beckmann_sample_slopes().

◆ fast_log10()

ccl_device_inline float fast_log10 ( float x )

Definition at line 396 of file util_math_fast.h.

References fast_log2f(), M_LN10_F, M_LN2_F, and x.

◆ fast_log2f()

ccl_device float fast_log2f ( float x )

Definition at line 362 of file util_math_fast.h.

References __float_as_uint(), __uint_as_float(), clamp(), madd(), and x.

Referenced by fast_log10(), fast_logf(), and fast_safe_powf().

◆ fast_logb()

ccl_device float fast_logb ( float x )

Definition at line 404 of file util_math_fast.h.

References __float_as_uint(), clamp(), fabsf, and x.

◆ fast_logf()

ccl_device_inline float fast_logf ( float x )

Definition at line 388 of file util_math_fast.h.

References fast_log2f(), M_LN2_F, and x.

Referenced by fast_ierff().

◆ fast_rint()

ccl_device_inline int fast_rint ( float x )

Definition at line 83 of file util_math_fast.h.

References copysignf, float_to_int(), and x.

Referenced by fast_cosf(), fast_sincosf(), fast_sinf(), and fast_tanf().

◆ fast_safe_powf()

ccl_device float fast_safe_powf	(	float	x,
		float	y
	)

Definition at line 539 of file util_math_fast.h.

References __float_as_int(), __int_as_float(), fabsf, fast_exp2f(), fast_log2f(), KDL::sign(), x, and y.

◆ fast_sincosf()

ccl_device void fast_sincosf	(	float	x,
		float *	sine,
		float *	cosine
	)

Definition at line 159 of file util_math_fast.h.

References fabsf, fast_rint(), M_1_PI_F, M_PI_2_F, madd(), and x.

Referenced by bsdf_hair_reflection_sample(), bsdf_hair_transmission_sample(), and triangle_light_sample().

◆ fast_sinf()

ccl_device float fast_sinf ( float x )

Definition at line 95 of file util_math_fast.h.

References fabsf, fast_rint(), M_1_PI_F, M_PI_2_F, madd(), and x.

Referenced by triangle_light_sample().

◆ fast_sinhf()

ccl_device float fast_sinhf ( float x )

Definition at line 498 of file util_math_fast.h.

References Freestyle::a, copysignf, e, fabsf, fast_expf(), madd(), r, and x.

◆ fast_sinpif()

ccl_device float fast_sinpif ( float x )

Definition at line 237 of file util_math_fast.h.

References fabsf, P(), x, y, and z.

Referenced by fast_cospif().

◆ fast_tanf()

ccl_device float fast_tanf ( float x )

Definition at line 202 of file util_math_fast.h.

References fast_rint(), M_1_PI_F, M_PI_4_F, madd(), and x.

◆ fast_tanhf()

ccl_device_inline float fast_tanhf ( float x )

Definition at line 529 of file util_math_fast.h.

References copysignf, e, fabsf, fast_expf(), and x.

◆ madd()

CCL_NAMESPACE_BEGIN ccl_device_inline float madd	(	const float	a,
		const float	b,
		const float	c
	)

Definition at line 50 of file util_math_fast.h.

References Freestyle::a, and Freestyle::c.

Referenced by fast_atan2f(), fast_atanf(), fast_cosf(), fast_erff(), fast_exp2f(), fast_expm1f(), fast_ierff(), fast_log2f(), fast_sincosf(), fast_sinf(), fast_sinhf(), and fast_tanf().

◆ madd4()

ccl_device_inline float4 madd4	(	const float4	a,
		const float4	b,
		const float4	c
	)

Definition at line 61 of file util_math_fast.h.

References Freestyle::a, and Freestyle::c.