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fix uv_mode for rm_thread

This commit is contained in:
David Rose 2002-12-09 19:11:02 +00:00
parent 922bbcee4b
commit 652af6525a
1 changed files with 36 additions and 1 deletions
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37
panda/src/parametrics/ropeNode.cxx
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@ -259,6 +259,9 @@ do_recompute_bound(const NodePath &rel_to) {
void RopeNode::
render_thread(CullTraverser *trav, CullTraverserData &data,
NurbsCurveResult *result) {
UVMode uv_mode = get_uv_mode();
LVecBase2f uv_scale = get_uv_scale();
PTA_Vertexf verts;
PTA_TexCoordf uvs;
PTA_Colorf colors;
@ -266,13 +269,42 @@ render_thread(CullTraverser *trav, CullTraverserData &data,
int num_verts = get_num_segs() + 1;
int num_segments = result->get_num_segments();
float dist = 0.0f;
for (int segment = 0; segment < num_segments; segment++) {
LPoint3f last_point;
for (int i = 0; i < num_verts; i++) {
float t = (float)i / (float)(num_verts - 1);
LPoint3f point;
result->eval_segment_point(segment, t, point);
verts.push_back(point);
uvs.push_back(TexCoordf(result->get_segment_t(segment, t), 0.0f));
t = result->get_segment_t(segment, t);
switch (uv_mode) {
case UV_none:
break;
case UV_parametric:
uvs.push_back(TexCoordf(t * uv_scale[0], 0.0f));
break;
case UV_distance:
if (i != 0) {
LVector3f vec = point - last_point;
dist += vec.length();
}
uvs.push_back(TexCoordf(dist * uv_scale[0], 0.0f));
break;
case UV_distance2:
if (i != 0) {
LVector3f vec = point - last_point;
dist += vec.length_squared();
}
uvs.push_back(TexCoordf(dist * uv_scale[0], 0.0f));
break;
}
last_point = point;
}
lengths.push_back(num_verts);
}
@ -282,6 +314,9 @@ render_thread(CullTraverser *trav, CullTraverserData &data,
PT(Geom) geom = new GeomLinestrip;
geom->set_num_prims(num_segments);
geom->set_coords(verts);
if (uv_mode != UV_none) {
geom->set_texcoords(uvs, G_PER_VERTEX);
}
geom->set_colors(colors, G_OVERALL);
geom->set_lengths(lengths);