diff options
Diffstat (limited to 'intern/cycles/kernel/geom/geom_motion_curve.h')
| -rw-r--r-- | intern/cycles/kernel/geom/geom_motion_curve.h | 74 |
1 files changed, 69 insertions, 5 deletions
diff --git a/intern/cycles/kernel/geom/geom_motion_curve.h b/intern/cycles/kernel/geom/geom_motion_curve.h index 6de5aa7ea99..119bdb2f15c 100644 --- a/intern/cycles/kernel/geom/geom_motion_curve.h +++ b/intern/cycles/kernel/geom/geom_motion_curve.h @@ -50,12 +50,12 @@ ccl_device_inline int find_attribute_curve_motion(KernelGlobals *kg, int object, ccl_device_inline void motion_curve_keys_for_step(KernelGlobals *kg, int offset, int numkeys, int numsteps, int step, int k0, int k1, float4 keys[2]) { if(step == numsteps) { - /* center step: regular vertex location */ + /* center step: regular key location */ keys[0] = kernel_tex_fetch(__curve_keys, k0); keys[1] = kernel_tex_fetch(__curve_keys, k1); } else { - /* center step not stored in this array */ + /* center step is not stored in this array */ if(step > numsteps) step--; @@ -97,14 +97,14 @@ ccl_device_inline void motion_curve_keys(KernelGlobals *kg, int object, int prim ccl_device_inline void motion_cardinal_curve_keys_for_step(KernelGlobals *kg, int offset, int numkeys, int numsteps, int step, int k0, int k1, int k2, int k3, float4 keys[4]) { if(step == numsteps) { - /* center step: regular vertex location */ + /* center step: regular key location */ keys[0] = kernel_tex_fetch(__curve_keys, k0); keys[1] = kernel_tex_fetch(__curve_keys, k1); keys[2] = kernel_tex_fetch(__curve_keys, k2); keys[3] = kernel_tex_fetch(__curve_keys, k3); } else { - /* center step not store in this array */ + /* center step is not stored in this array */ if(step > numsteps) step--; @@ -118,7 +118,12 @@ ccl_device_inline void motion_cardinal_curve_keys_for_step(KernelGlobals *kg, in } /* return 2 curve key locations */ -ccl_device_inline void motion_cardinal_curve_keys(KernelGlobals *kg, int object, int prim, float time, int k0, int k1, int k2, int k3, float4 keys[4]) +ccl_device_inline void motion_cardinal_curve_keys(KernelGlobals *kg, + int object, + int prim, + float time, + int k0, int k1, int k2, int k3, + float4 keys[4]) { /* get motion info */ int numsteps, numkeys; @@ -147,6 +152,65 @@ ccl_device_inline void motion_cardinal_curve_keys(KernelGlobals *kg, int object, keys[3] = (1.0f - t)*keys[3] + t*next_keys[3]; } +#if defined(__KERNEL_AVX2__) && defined(__KERNEL_SSE__) +/* Similar to above, but returns keys as pair of two AVX registers with each + * holding two float4. + */ +ccl_device_inline void motion_cardinal_curve_keys_avx(KernelGlobals *kg, + int object, + int prim, + float time, + int k0, int k1, + int k2, int k3, + avxf *out_keys_0_1, + avxf *out_keys_2_3) +{ + /* Get motion info. */ + int numsteps, numkeys; + object_motion_info(kg, object, &numsteps, NULL, &numkeys); + + /* Figure out which steps we need to fetch and their interpolation factor. */ + int maxstep = numsteps * 2; + int step = min((int)(time*maxstep), maxstep - 1); + float t = time*maxstep - step; + + /* Find attribute. */ + AttributeElement elem; + int offset = find_attribute_curve_motion(kg, + object, + ATTR_STD_MOTION_VERTEX_POSITION, + &elem); + kernel_assert(offset != ATTR_STD_NOT_FOUND); + + /* Fetch key coordinates. */ + float4 next_keys[4]; + float4 keys[4]; + motion_cardinal_curve_keys_for_step(kg, + offset, + numkeys, + numsteps, + step, + k0, k1, k2, k3, + keys); + motion_cardinal_curve_keys_for_step(kg, + offset, + numkeys, + numsteps, + step + 1, + k0, k1, k2, k3, + next_keys); + + const avxf keys_0_1 = avxf(keys[0].m128, keys[1].m128); + const avxf keys_2_3 = avxf(keys[2].m128, keys[3].m128); + const avxf next_keys_0_1 = avxf(next_keys[0].m128, next_keys[1].m128); + const avxf next_keys_2_3 = avxf(next_keys[2].m128, next_keys[3].m128); + + /* Interpolate between steps. */ + *out_keys_0_1 = (1.0f - t) * keys_0_1 + t*next_keys_0_1; + *out_keys_2_3 = (1.0f - t) * keys_2_3 + t*next_keys_2_3; +} +#endif + #endif CCL_NAMESPACE_END |