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Searched refs:M_4PI_F (Results 1 – 2 of 2) sorted by relevance

/dports/graphics/blender/blender-2.91.0/intern/cycles/kernel/
H A Dkernel_light_background.h321 *pdf = 1.0f / M_4PI_F; in background_light_sample()
427 return kernel_data.integrator.pdf_lights / M_4PI_F; in background_light_pdf()
/dports/graphics/blender/blender-2.91.0/intern/cycles/util/
H A Dutil_math.h71 #ifndef M_4PI_F
72 # define M_4PI_F (12.566370614359172f) /* 4*pi */ macro