A method for improved heat rendering in an interactive computer simulation system comprising a virtual simulated element in a computer generated environment, the method comprising: - considering inputs received at the interactive computer simulation station, from one or more tangible instruments thereof for controlling the virtual simulated element in the computer generated environment, defining a view point, for a display of the interactive computer simulation station, in the computer generated environment; - from the view point in the computer generated environment, loading a non-static 3D mesh which visually conveys heat-related information in a non-static manner, said non-static 3D mesh defining one or more temperature-influenced virtual points and associated with a temperature-independent base-texture and a heat-map texture; and - rendering the non-static 3D mesh, from the view point, for the display in the interactive computer simulation station by: - applying base imagery data of the temperature-independent base-texture over visible surfaces of the non-static 3D mesh from temperature-independent base-texture coordinates that selectively map the base imagery data on the non-static 3D mesh; - from the heat-map texture, and for each of the one or more temperature-influenced virtual points, loading a heat-propagation pattern from heat-map coordinates, shared with the temperature-independent base-texture coordinates, that selectively map the heat-propagation pattern on the non-static 3D mesh; and - computing a heat-related intensity variation on at least some of the visible surfaces of the 3D mesh from the heat-propagation pattern of each of the one or more temperature-influenced virtual points. - considering inputs received at the interactive computer simulation station, from one or more tangible instruments thereof for controlling the virtual simulated element in the computer generated environment, defining a view point, for a display of the interactive computer simulation station, in the computer generated environment; - from the view point in the computer generated environment, loading a non-static 3D mesh which visually conveys heat-related information in a non-static manner, said non-static 3D mesh defining one or more temperature-influenced virtual points and associated with a temperature-independent base-texture and a heat-map texture; and - rendering the non-static 3D mesh, from the view point, for the display in the interactive computer simulation station by: - applying base imagery data of the temperature-independent base-texture over visible surfaces of the non-static 3D mesh from temperature-independent base-texture coordinates that selectively map the base imagery data on the non-static 3D mesh; - from the heat-map texture, and for each of the one or more temperature-influenced virtual points, loading a heat-propagation pattern from heat-map coordinates, shared with the temperature-independent base-texture coordinates, that selectively map the heat-propagation pattern on the non-static 3D mesh; and - computing a heat-related intensity variation on at least some of the visible surfaces of the 3D mesh from the heat-propagation pattern of each of the one or more temperature-influenced virtual points. - applying base imagery data of the temperature-independent base-texture over visible surfaces of the non-static 3D mesh from temperature-independent base-texture coordinates that selectively map the base imagery data on the non-static 3D mesh; - from the heat-map texture, and for each of the one or more temperature-influenced virtual points, loading a heat-propagation pattern from heat-map coordinates, shared with the temperature-independent base-texture coordinates, that selectively map the heat-propagation pattern on the non-static 3D mesh; and - computing a heat-related intensity variation on at least some of the visible surfaces of the 3D mesh from the heat-propagation pattern of each of the one or more temperature-influenced virtual points.