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added some blur variations, up to 36.

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This commit is contained in:
Erik Reckase 2011-05-04 12:05:51 -06:00
parent 7a680efa1b
commit 645222af47
1 changed files with 28 additions and 0 deletions
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28
cuburn/code/variations.py
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@ -290,3 +290,31 @@ var(33, 'juliascope', """
oy += r * sinf(tmpr);
""")
var(34, 'blur', """
float tmpr = mwc_next_01(rctx) * 2.0f * M_PI;
float r = w * mwc_next_01(rctx);
ox += r * cosf(tmpr);
oy += r * sinf(tmpr);
""")
var(35, 'gaussian', """
float ang = mwc_next_01(rctx) * 2.0f * M_PI;
float r = weight * ( mwc_next_01(rctx) + mwc_next_01(rctx)
+ mwc_next_01(rctx) + mwc_next_01(rctx) - 2.0f );
ox += r * cosf(ang);
oy += r * sinf(ang);
""")
var(36, 'radial_blur', """
float blur_angle = {{px.get('xf.radial_blur_angle')}} * M_PI * 0.5f;
float spinvar = sinf(blur_angle);
float zoomvar = cosf(blur_angle);
float r = weight * ( mwc_next_01(rctx) + mwc_next_01(rctx)
+ mwc_next_01(rctx) + mwc_next_01(rctx) - 2.0f );
float ra = sqrtf(tx*tx + ty*ty);
float tmpa = atan2f(ty, tx) + spinvar * r;
float rz = zoomvar * r - 1.0f;
ox += ra*cosf(tmpa) + rz*tx;
oy += ra*sinf(tmpa) + rz*ty;
""")