diff options
author | Sergey Sharybin <sergey.vfx@gmail.com> | 2016-03-11 19:22:19 +0300 |
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committer | Sergey Sharybin <sergey.vfx@gmail.com> | 2016-03-12 13:01:20 +0300 |
commit | a8c87bad22e618fab19521b4e2d162d19946db98 (patch) | |
tree | ea238fb7064abad890c0f37833940fce9d3d00d6 /intern/cycles/kernel/kernel_projection.h | |
parent | e327fb522a8f6991d7cd537f4a7298559d08cff8 (diff) |
Cycles: Cleanup, spherical_stereo_direction will return normalized direction
Previously each call of this function was followed by a normaliztion, now it
is done in the function itself with an according note around the function.
Diffstat (limited to 'intern/cycles/kernel/kernel_projection.h')
-rw-r--r-- | intern/cycles/kernel/kernel_projection.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/intern/cycles/kernel/kernel_projection.h b/intern/cycles/kernel/kernel_projection.h index aedcbddbd98..e561cfaebe0 100644 --- a/intern/cycles/kernel/kernel_projection.h +++ b/intern/cycles/kernel/kernel_projection.h @@ -241,20 +241,22 @@ ccl_device float3 spherical_stereo_position(KernelGlobals *kg, return pos + (side * interocular_offset); } +/* NOTE: Ensures direction is normalized. */ ccl_device float3 spherical_stereo_direction(KernelGlobals *kg, float3 dir, float3 pos, float3 newpos) { + const float3 normalized_dir = normalize(dir); /* Interocular offset of zero means either no stereo, or stereo without * spherical stereo. */ if(kernel_data.cam.interocular_offset == 0.0f) { - return dir; + return normalized_dir; } - float3 screenpos = pos + (normalize(dir) * kernel_data.cam.convergence_distance); - return screenpos - newpos; + float3 screenpos = pos + (normalized_dir * kernel_data.cam.convergence_distance); + return normalize(screenpos - newpos); } CCL_NAMESPACE_END |