downloadable computer software for developing and designing computer and video games; downloadable computer software for developing and designing virtual environments; downloadable computer software for simulating lighting interactions with geometry and material surfaces; downloadable cloud-computer software for developing and designing computer and video games; downloadable computer software for simulating lighting interactions with geometry and material surfaces; downloadable computer application software for creating image files for use in virtual environments

providing temporary use of on-line non-downloadable software development tools for the design and development of computer and video games; providing temporary use of on-line non-downloadable software development tools for developing and designing virtual environments; providing temporary use of on-line non-downloadable software development tools for simulating lighting interactions with geometry and material surfaces; providing a web site featuring temporary use of on-line non-downloadable software development tools for the design and development of computer and video games; providing a web site featuring temporary use of on-line non-downloadable software development tools for developing and designing virtual environments; providing a web site featuring temporary use of on-line non-downloadable software development tools for simulating lighting interactions with geometry and material surfaces; providing temporary use of non-downloadable cloud-based software development tools for the design and development of computer and video games; providing temporary use of non-downloadable cloud-based software development tools for developing and designing virtual environments; providing temporary use of non-downloadable cloud-based software development tools for simulating lighting interactions with geometry and material surfaces;