diff options
author | Brecht Van Lommel <brechtvanlommel@pandora.be> | 2005-12-01 15:45:17 +0300 |
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committer | Brecht Van Lommel <brechtvanlommel@pandora.be> | 2005-12-01 15:45:17 +0300 |
commit | a09fbc080dea64078a6cfb307a720194ee30e6db (patch) | |
tree | d1b3d61b00d95522d4496b3b029f6a2da9cc7743 /source/blender/src/parametrizer.c | |
parent | 1a59b16b4831987a12906a1821755c4b249287bb (diff) |
Small addition to stretch minimize: with pad +/- or the wheel mouse
you can now blend between the original and minimized.
Stretch minimizing trades conformality (= perfect squares in checkerboard
texture) for a better sampling of the texture (= often not so well shaped
checkerboard), so it is useful to let the user find a balance between the
two.
Diffstat (limited to 'source/blender/src/parametrizer.c')
-rw-r--r-- | source/blender/src/parametrizer.c | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/source/blender/src/parametrizer.c b/source/blender/src/parametrizer.c index ff5d92e4604..32e8f6ac187 100644 --- a/source/blender/src/parametrizer.c +++ b/source/blender/src/parametrizer.c @@ -1135,6 +1135,19 @@ static void p_flush_uvs(PChart *chart) } } +static void p_flush_uvs_blend(PChart *chart, float blend) +{ + PEdge *e; + float invblend = 1.0f - blend; + + for (e=(PEdge*)chart->edges->first; e; e=e->link.next) { + if (e->orig_uv) { + e->orig_uv[0] = blend*e->old_uv[0] + invblend*e->vert->uv[0]; + e->orig_uv[1] = blend*e->old_uv[1] + invblend*e->vert->uv[1]; + } + } +} + /* Exported */ ParamHandle *param_construct_begin() @@ -1620,6 +1633,7 @@ void param_stretch_begin(ParamHandle *handle) phandle->state = PHANDLE_STATE_STRETCH; phandle->rng = rng_new(31415926); + phandle->blend = 0.0f; for (i = 0; i < phandle->ncharts; i++) { chart = phandle->charts[i]; @@ -1636,6 +1650,28 @@ void param_stretch_begin(ParamHandle *handle) } } +void param_stretch_blend(ParamHandle *handle, float blend) +{ + PHandle *phandle = (PHandle*)handle; + PChart *chart; + int i; + + param_assert(phandle->state == PHANDLE_STATE_STRETCH); + + if (phandle->blend != blend) { + phandle->blend = blend; + + for (i = 0; i < phandle->ncharts; i++) { + chart = phandle->charts[i]; + + if (blend == 0.0f) + p_flush_uvs(chart); + else + p_flush_uvs_blend(chart, blend); + } + } +} + void param_stretch_iter(ParamHandle *handle) { PHandle *phandle = (PHandle*)handle; @@ -1648,7 +1684,11 @@ void param_stretch_iter(ParamHandle *handle) chart = phandle->charts[i]; p_chart_stretch_minimize(chart, phandle->rng); - p_flush_uvs(chart); + + if (phandle->blend == 0.0f) + p_flush_uvs(chart); + else + p_flush_uvs_blend(chart, phandle->blend); } } |