Function RenderScript_DrawDebug3d

engine/render/src/render/render_script.cpp:1834–1869

draws all 3d debug graphics * Draws all 3d debug graphics such as lines drawn with "draw_line" messages and physics visualization. * @name render.draw_debug3d * @param [options] [type:table] optional table with properties: * * `frustum` * : [type:matrix4] A frustum matrix used to cull renderable items. (E.g. `local frustum = proj * view`). May be nil. * * `f

     * ```
     */
    int RenderScript_DrawDebug3d(lua_State* L)
    {
        RenderScriptInstance* i = RenderScriptInstance_Check(L);
        dmVMath::Matrix4* frustum_matrix = 0;
        dmRender::FrustumPlanes frustum_num_planes = dmRender::FRUSTUM_PLANES_SIDES;

        if (lua_istable(L, 1))
        {
            luaL_checktype(L, 1, LUA_TTABLE);
            lua_pushvalue(L, 1);

            lua_getfield(L, -1, "frustum");
            frustum_matrix = lua_isnil(L, -1) ? 0 : dmScript::CheckMatrix4(L, -1);
            lua_pop(L, 1);

            lua_getfield(L, -1, "frustum_planes");
            frustum_num_planes = lua_isnil(L, -1) ? frustum_num_planes : (dmRender::FrustumPlanes)luaL_checkinteger(L, -1);
            lua_pop(L, 1);

            lua_pop(L, 1);
        }

        // we need to pass ownership to the command queue
        FrustumOptions* frustum_options = 0;
        if (frustum_matrix)
        {
            frustum_options = new FrustumOptions;
            frustum_options->m_Matrix = *frustum_matrix;
            frustum_options->m_NumPlanes = frustum_num_planes;
        }

        if (InsertCommand(i, Command(COMMAND_TYPE_DRAW_DEBUG3D, (uint64_t)frustum_options)))
            return 0;
        else
            return luaL_error(L, "Command buffer is full (%d).", i->m_CommandBuffer.Capacity());
    }

    /*# sets the view matrix
     *