void OBB::Transform(const float4x4 &transform)
{
assume(transform.IsOrthogonal3());
OBBTransform(*this, transform);
}
void OBB::Transform(const float3x4 &transform)
{
assume(transform.IsColOrthogonal());
OBBTransform(*this, transform);
}
void OBB::Transform(const Quat &transform)
{
OBBTransform(*this, transform.ToFloat3x3());
}
static void ddRenderOBBs(const mat4& projview)
{
const ShaderInfo* shader = g_dbgdrawShader.get();
GLint posLoc = shader->m_attrs[GEOM_Pos];
GLint colorLoc = shader->m_attrs[GEOM_Color];
GLint mvpLoc = shader->m_uniforms[BIND_Mvp];
glUniformMatrix4fv(mvpLoc, 1, 0, projview.m);
static const float s_coords[][3] = {
{ -1.f, -1.f, -1.f },
{ 1.f, -1.f, -1.f },
{ 1.f, 1.f, -1.f },
{ -1.f, 1.f, -1.f },
{ -1.f, -1.f, 1.f },
{ 1.f, -1.f, 1.f },
{ 1.f, 1.f, 1.f },
{ -1.f, 1.f, 1.f },
};
const ddOBB* cur = g_lists.m_obbs;
if(cur)
{
glBegin(GL_LINES);
while(cur)
{
OBB obb = OBBTransform(cur->m_xfm, cur->m_obb);
glVertexAttrib3fv(colorLoc, &cur->m_color.r);
vec3 pt[8];
for(int i = 0; i < 8; ++i)
{
pt[i] = obb.m_center +
obb.m_b[0] * s_coords[i][0] +
obb.m_b[1] * s_coords[i][1] +
obb.m_b[2] * s_coords[i][2];
}
// Bottom half
glVertexAttrib3fv(posLoc, &pt[0].x);
glVertexAttrib3fv(posLoc, &pt[1].x);
glVertexAttrib3fv(posLoc, &pt[1].x);
glVertexAttrib3fv(posLoc, &pt[2].x);
glVertexAttrib3fv(posLoc, &pt[2].x);
glVertexAttrib3fv(posLoc, &pt[3].x);
glVertexAttrib3fv(posLoc, &pt[3].x);
glVertexAttrib3fv(posLoc, &pt[0].x);
// Top half
glVertexAttrib3fv(posLoc, &pt[4].x);
glVertexAttrib3fv(posLoc, &pt[5].x);
glVertexAttrib3fv(posLoc, &pt[5].x);
glVertexAttrib3fv(posLoc, &pt[6].x);
glVertexAttrib3fv(posLoc, &pt[6].x);
glVertexAttrib3fv(posLoc, &pt[7].x);
glVertexAttrib3fv(posLoc, &pt[7].x);
glVertexAttrib3fv(posLoc, &pt[4].x);
// Connecting lines
glVertexAttrib3fv(posLoc, &pt[0].x);
glVertexAttrib3fv(posLoc, &pt[4].x);
glVertexAttrib3fv(posLoc, &pt[1].x);
glVertexAttrib3fv(posLoc, &pt[5].x);
glVertexAttrib3fv(posLoc, &pt[2].x);
glVertexAttrib3fv(posLoc, &pt[6].x);
glVertexAttrib3fv(posLoc, &pt[3].x);
glVertexAttrib3fv(posLoc, &pt[7].x);
cur = cur->m_next;
}
glEnd();
}
}
