public void BuildClipPlanes()
{
if (editor.m_decal_active == -1)
{
return;
}
GL.PushMatrix();
GL.DeleteLists(GL_CLIP_PLANES, 1);
GL.NewList(GL_CLIP_PLANES, ListMode.Compile);
{
GL.Begin(PrimitiveType.Lines);
if (editor.m_level.selected_segment > -1 && editor.m_level.selected_side > -1)
{
Side s = editor.m_level.segment[editor.m_level.selected_segment].side[editor.m_level.selected_side];
Decal d = s.decal[editor.m_decal_active];
for (int i = 0; i < Decal.NUM_EDGES; i++)
{
if (d.clip_normal[i] != Vector3.Zero)
{
GL.Color3(C_decal_clip[i]);
CreateLine(s.FindEdgeCenter(i), s.FindEdgeCenter(i) + d.clip_normal[i] * CLIP_DIST);
CreateLine(s.FindEdgeCenterOffset(i, 0.1f), s.FindEdgeCenterOffset(i, 0.1f) + d.clip_normal[i] * CLIP_DIST);
CreateLine(s.FindEdgeCenterOffset(i, 0.9f), s.FindEdgeCenterOffset(i, 0.9f) + d.clip_normal[i] * CLIP_DIST);
CreateLine(s.FindEdgeCenterOffset(i, 0.1f) + d.clip_normal[i] * CLIP_DIST, s.FindEdgeCenterOffset(i, 0.9f) + d.clip_normal[i] * CLIP_DIST);
}
}
}
GL.End();
}
GL.EndList();
GL.PopMatrix();
}
public void FindBaseAttributes(Decal d)
{
Side s = d.side;
m_base_normal = s.FindNormal();
// Center position
switch (d.align)
{
case DecalAlign.TEXTURE:
m_base_pos = s.FindUVCenterIn3D();
break;
case DecalAlign.CENTER:
m_base_pos = s.FindCenter();
break;
case DecalAlign.EDGE_RIGHT:
case DecalAlign.EDGE_DOWN:
case DecalAlign.EDGE_LEFT:
case DecalAlign.EDGE_UP:
m_base_pos = s.FindEdgeCenter((int)d.align - (int)DecalAlign.EDGE_RIGHT);
break;
}
m_base_rvec = Vector3.Zero;
// Up vector
switch (d.align)
{
case DecalAlign.TEXTURE:
m_base_uvec = s.FindUVUpVector();
break;
case DecalAlign.CENTER:
m_base_uvec = s.FindBestEdgeDir();
break;
case DecalAlign.EDGE_RIGHT:
case DecalAlign.EDGE_DOWN:
case DecalAlign.EDGE_LEFT:
case DecalAlign.EDGE_UP:
m_base_rvec = -s.FindEdgeDir((int)d.align - (int)DecalAlign.EDGE_RIGHT);
m_base_uvec = Vector3.Cross(m_base_normal, m_base_rvec);
break;
}
// Find the right vec for cases we haven't already
if (m_base_rvec == Vector3.Zero)
{
m_base_rvec = Vector3.Cross(m_base_uvec, m_base_normal);
}
// Apply the rotation of the decal properties to the Up and Right Vector
Matrix4 vec_rot = Matrix4.CreateFromAxisAngle(m_base_normal, d.RotationAngle());
m_base_uvec = Vector3.TransformNormal(m_base_uvec, vec_rot);
m_base_rvec = Vector3.TransformNormal(m_base_rvec, vec_rot);
// Base rotation
m_base_rot = Matrix4.Transpose(Matrix4.LookAt(Vector3.Zero, m_base_normal, m_base_uvec));
}
