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finished drawing managed planes (i think)

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git-svn-id: svn://anubis/anaglym/trunk@128 99a6e188-d820-4881-8870-2d33a10e2619
This commit is contained in:
Josh Holtrop 2009-10-27 23:34:02 +00:00
parent ce1da5f7a8
commit 0d15c1a054
1 changed files with 23 additions and 5 deletions
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28
Engine.cc
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@ -772,13 +772,31 @@ void Engine::Object::render()
dMultiply0(rotated_x, default_x, r, 1, 3, 3);
dMultiply0(rotated_y, default_y, r, 1, 3, 3);
float a = rotated_plane_direction[0];
float b = rotated_plane_direction[1];
float c = rotated_plane_direction[2];
float d = (a * (*m_args)[0] + b * (*m_args)[1] + c * (*m_args)[2]);
/* plane equation: ax + by + cz = d, plane normal: (a, b, c) */
const int num_sections = 10;
const float section_size = 10.0f;
float x_o = (*m_args)[0];
float y_o = (*m_args)[1];
float z_o = (*m_args)[2];
glBegin(GL_QUAD_STRIP);
glNormal3f(a, b, c);
glNormal3fv(rotated_plane_direction);
for (int x = 0; x < num_sections; x++)
{
for (int y = 0; y <= num_sections; y++)
{
float half_span = num_sections * section_size / 2.0;
float x_c = x * section_size - half_span;
float y_c = y * section_size - half_span;
glVertex3f(x_o + rotated_x[0] * x_c + rotated_y[0] * y_c,
y_o + rotated_x[1] * x_c + rotated_y[1] * y_c,
z_o + rotated_x[2] * x_c + rotated_y[2] * y_c);
x_c += section_size;
glVertex3f(x_o + rotated_x[0] * x_c + rotated_y[0] * y_c,
y_o + rotated_x[1] * x_c + rotated_y[1] * y_c,
z_o + rotated_x[2] * x_c + rotated_y[2] * y_c);
}
}
glEnd();
}
break;