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author | Stefan Werner <stefan.werner@tangent-animation.com> | 2018-11-07 14:58:12 +0300 |
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committer | Stefan Werner <stefan.werner@tangent-animation.com> | 2018-11-07 14:58:12 +0300 |
commit | 2c5531c0a521119a2f5c88b4ba2a67234c537d2b (patch) | |
tree | e1b27e6714a5746840cce4421cb9a3877c14fc97 /intern/cycles/kernel/geom/geom_curve_intersect.h | |
parent | 8a014e780e504cb6e851af9a6c1b591e1bd9da0f (diff) |
Cycles: Added Embree as BVH option for CPU renders.
Note that this is turned off by default and must be enabled at build time with the CMake WITH_CYCLES_EMBREE flag.
Embree must be built as a static library with ray masking turned on, the `make deps` scripts have been updated accordingly.
There, Embree is off by default too and must be enabled with the WITH_EMBREE flag.
Using Embree allows for much faster rendering of deformation motion blur while reducing the memory footprint.
TODO: GPU implementation, deduplication of data, leveraging more of Embrees features (e.g. tessellation cache).
Differential Revision: https://developer.blender.org/D3682
Diffstat (limited to 'intern/cycles/kernel/geom/geom_curve_intersect.h')
-rw-r--r-- | intern/cycles/kernel/geom/geom_curve_intersect.h | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/intern/cycles/kernel/geom/geom_curve_intersect.h b/intern/cycles/kernel/geom/geom_curve_intersect.h index 4cfbe21685c..5901429918c 100644 --- a/intern/cycles/kernel/geom/geom_curve_intersect.h +++ b/intern/cycles/kernel/geom/geom_curve_intersect.h @@ -817,16 +817,24 @@ ccl_device_inline float3 curve_refine(KernelGlobals *kg, sd->Ng = normalize(-(D - tg * (dot(tg, D)))); } else { - /* direction from inside to surface of curve */ - float3 p_curr = curvepoint(isect->u, p[0], p[1], p[2], p[3]); - sd->Ng = normalize(P - p_curr); +#ifdef __EMBREE__ + if(kernel_data.bvh.scene) { + sd->Ng = normalize(isect->Ng); + } + else +#endif + { + /* direction from inside to surface of curve */ + float3 p_curr = curvepoint(isect->u, p[0], p[1], p[2], p[3]); + sd->Ng = normalize(P - p_curr); - /* adjustment for changing radius */ - float gd = isect->v; + /* adjustment for changing radius */ + float gd = isect->v; - if(gd != 0.0f) { - sd->Ng = sd->Ng - gd * tg; - sd->Ng = normalize(sd->Ng); + if(gd != 0.0f) { + sd->Ng = sd->Ng - gd * tg; + sd->Ng = normalize(sd->Ng); + } } } |