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Actually fix dithering. (I've seen this before...)

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This commit is contained in:
Steven Robertson 2011-10-15 19:08:16 -04:00
parent 92708b32ba
commit 9ff018de87
1 changed files with 5 additions and 5 deletions
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10
cuburn/code/iter.py
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@ -164,19 +164,19 @@ void iter(mwc_st *msts, iter_info *infos, uint64_t accbuf_ptr) {
cosel[threadIdx.x] = mwc_next_01(rctx); cosel[threadIdx.x] = mwc_next_01(rctx);
{{endif}} {{endif}}
__syncthreads();
int consec_bad = -{{features.fuse}};
if (threadIdx.y == 1 && threadIdx.x == 0) { if (threadIdx.y == 1 && threadIdx.x == 0) {
float ditherwidth = {{packer.get("0.33 * cp.spatial_filter_radius")}}; float ditherwidth = {{packer.get("0.33 * cp.spatial_filter_radius")}};
float u0 = mwc_next_01(rctx) + 0.02f; float u0 = mwc_next_01(rctx);
float r = ditherwidth * sqrt(-2.0f * log2f(u0) / M_LOG2E); float r = ditherwidth * sqrtf(-2.0f * log2f(u0) / M_LOG2E);
float u1 = 2.0f * M_PI * mwc_next_01(rctx); float u1 = 2.0f * M_PI * mwc_next_01(rctx);
info.cam_xo += r * cos(u1); info.cam_xo += r * cos(u1);
info.cam_yo += r * sin(u1); info.cam_yo += r * sin(u1);
} }
__syncthreads();
int consec_bad = -{{features.fuse}};
float x, y, color; float x, y, color;
x = mwc_next_11(rctx); x = mwc_next_11(rctx);
y = mwc_next_11(rctx); y = mwc_next_11(rctx);