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Reversed y-dir of normals

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This commit is contained in:
Josh Yelon 2006-11-28 19:39:37 +00:00
parent 67d2f9d6e7
commit cd2049fc7b
1 changed files with 1 additions and 4 deletions
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5
panda/src/grutil/heightfieldTesselator.cxx
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@ -124,13 +124,10 @@ get_vertex(int x, int y) {
if (px >= _heightfield.get_x_size()) px--;
if (py >= _heightfield.get_y_size()) py--;
double drx = _heightfield.get_gray(px,y) - _heightfield.get_gray(nx,y);
double dry = _heightfield.get_gray(x,ny) - _heightfield.get_gray(x,py);
double dry = _heightfield.get_gray(x,py) - _heightfield.get_gray(x,ny);
LVector3f normal(drx * _vertical_scale * 0.5, dry * _vertical_scale * 0.5, _horizontal_scale);
normal.normalize();
double z = _heightfield.get_gray(x,y);
if (z > 2.0) {
cerr << "What the heck?";
}
_vertex_writer->add_data3f(x*_horizontal_scale,-y*_horizontal_scale,z*_vertical_scale);
_normal_writer->add_data3f(normal);
vtx = _next_index++;