diff options
| author | Campbell Barton <ideasman42@gmail.com> | 2012-06-20 12:11:59 +0400 |
|---|---|---|
| committer | Campbell Barton <ideasman42@gmail.com> | 2012-06-20 12:11:59 +0400 |
| commit | 586f202eacf0ce06a38dc95d7b0300f85d47457c (patch) | |
| tree | 7bff8dcd4e7103941f6ba3c88e340e9657733179 /source/blender/nodes | |
| parent | fc1164c2236654a74789cf767e8efc73d5599ab1 (diff) | |
minor speedup for the glare compositor node
- pre calculate the UV dot product
- use image width and height converted to floats in the inner loop.
Diffstat (limited to 'source/blender/nodes')
| -rw-r--r-- | source/blender/nodes/composite/nodes/node_composite_lensdist.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/source/blender/nodes/composite/nodes/node_composite_lensdist.c b/source/blender/nodes/composite/nodes/node_composite_lensdist.c index 9b19ca6f5cf..7635a391441 100644 --- a/source/blender/nodes/composite/nodes/node_composite_lensdist.c +++ b/source/blender/nodes/composite/nodes/node_composite_lensdist.c @@ -98,19 +98,20 @@ static void lensDistort(CompBuf *dst, CompBuf *src, float kr, float kg, float kb float d, t, ln[6] = {0, 0, 0, 0, 0, 0}; fRGB c1, tc = {0, 0, 0, 0}; const float u = sc*((x + 0.5f) - cx)/cx; + const float uv_dot = u * u + v * v; int sta = 0, mid = 0, end = 0; - if ((t = 1.f - kr*(u*u + v*v)) >= 0.f) { + if ((t = 1.f - kr*uv_dot) >= 0.f) { d = 1.f/(1.f + sqrtf(t)); ln[0] = (u*d + 0.5f)*dst->x - 0.5f, ln[1] = (v*d + 0.5f)*dst->y - 0.5f; sta = 1; } - if ((t = 1.f - kg*(u*u + v*v)) >= 0.f) { + if ((t = 1.f - kg*uv_dot) >= 0.f) { d = 1.f/(1.f + sqrtf(t)); ln[2] = (u*d + 0.5f)*dst->x - 0.5f, ln[3] = (v*d + 0.5f)*dst->y - 0.5f; mid = 1; } - if ((t = 1.f - kb*(u*u + v*v)) >= 0.f) { + if ((t = 1.f - kb*uv_dot) >= 0.f) { d = 1.f/(1.f + sqrtf(t)); ln[4] = (u*d + 0.5f)*dst->x - 0.5f, ln[5] = (v*d + 0.5f)*dst->y - 0.5f; end = 1; @@ -125,7 +126,7 @@ static void lensDistort(CompBuf *dst, CompBuf *src, float kr, float kg, float kb for (z=0; z<ds; ++z) { const float tz = ((float)z + (jit ? BLI_frand() : 0.5f))*sd; - t = 1.f - (kr + tz*drg)*(u*u + v*v); + t = 1.f - (kr + tz*drg)*uv_dot; d = 1.f / (1.f + sqrtf(t)); qd_getPixelLerp(src, (u*d + 0.5f)*dst->x - 0.5f, (v*d + 0.5f)*dst->y - 0.5f, c1); if (src->type == CB_VAL) c1[1] = c1[2] = c1[0]; @@ -141,7 +142,7 @@ static void lensDistort(CompBuf *dst, CompBuf *src, float kr, float kg, float kb for (z=0; z<ds; ++z) { const float tz = ((float)z + (jit ? BLI_frand() : 0.5f))*sd; - t = 1.f - (kg + tz*dgb)*(u*u + v*v); + t = 1.f - (kg + tz*dgb)*uv_dot; d = 1.f / (1.f + sqrtf(t)); qd_getPixelLerp(src, (u*d + 0.5f)*dst->x - 0.5f, (v*d + 0.5f)*dst->y - 0.5f, c1); if (src->type == CB_VAL) c1[1] = c1[2] = c1[0]; |