EXHIBIT 31.1

                                 CERTIFICATIONS

I, Robert A. Olins, certify that:

1.    I have reviewed this quarterly report on Form 10-Q of SpatiaLight, Inc.;

2.    Based on my knowledge,  this report does not contain any untrue  statement
      of a material fact or omit to state a material fact  necessary to make the
      statements made, in light of the circumstances under which such statements
      were made,  not  misleading  with  respect  to the period  covered by this
      report;

3.    Based on my  knowledge,  the  financial  statements,  and other  financial
      information  included  in this  report,  fairly  present  in all  material
      respects the financial condition,  results of operations and cash flows of
      the registrant as of, and for, the periods presented in this report;

4.    I am responsible for establishing and maintaining  disclosure controls and
      procedures  (as defined in Exchange Act Rules  13a-15(e) and 15d-15(e) and
      internal  control  over  financial  reporting  (as defined in Exchange Act
      Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

      (a)   Designed such  disclosure  controls and  procedures,  or caused such
            disclosure   controls  and  procedures  to  be  designed  under  our
            supervision,  to ensure that  material  information  relating to the
            registrant,  including its consolidated subsidiaries,  is made known
            to me by others  within  those  entities,  particularly  during  the
            period in which this report is being prepared;

      (b)   Designed such internal control over financial  reporting,  or caused
            such internal control over financial  reporting to be designed under
            my  supervision,  to  provide  reasonable  assurance  regarding  the
            reliability of financial  reporting and the preparation of financial
            statements  for  external  purposes  in  accordance  with  generally
            accepted accounting principles;

      (c)   Evaluated the effectiveness of the registrant's  disclosure controls
            and procedures and presented in this report my conclusions about the
            effectiveness of the disclosure  controls and procedures,  as of the
            end of the period  covered by this report  based on such  evaluation
            and

      (d)   Disclosed  in this  report any change in the  registrant's  internal
            control  over   financial   reporting   that  occurred   during  the
            registrant's   most  recent  fiscal   quarter  that  has  materially
            affected,   or  is  reasonably  likely  to  materially  affect,  the
            registrant's internal control over financial reporting; and

5.    I have disclosed,  based on my most recent  evaluation of internal control
      over  financial  reporting  to the  registrant's  auditors  and the  audit
      committee of the  registrant's  board of directors (or persons  performing
      the equivalent functions):

      (a)   All significant  deficiencies and material  weaknesses in the design
            or operation of internal control over financial  reporting which are
            reasonably  likely to adversely affect the  registrant's  ability to
            record, process, summarize and report financial information; and

      (b)   Any fraud,  whether or not  material,  that  involves  management or
            other  employees  who have a  significant  role in the  registrant`s
            internal control over financial reporting.

Date: May, 2005

/s/ROBERT A. OLINS
---------------------------------
Chief Executive Officer
  and Principal Financial Officer