On Sunday 20 August 2006 18:16, Ampere K. Hardraade wrote: > On Sunday 20 August 2006 16:25, Melchior FRANZ wrote: > > * Buchanan, Stuart -- Sunday 20 August 2006 22:22: > > > > hmm... alpha in texture... bad idea. > > > > > > Why? > > > > Breaks volumetric shadows. Aircraft parts can't then cast shadows > > on the aircraft. But apart from that I wouldn't say such textures > > are evil. A bit slower to render, but that's not really a striking > > argument. > > > > m. > > It hit performance pretty hard. That's why a lot of us avoid using it in > textures. Alpha in materials seem to be alright though. > > Ampere
Ah ha, found the reason: Avoid using textures with an alpha channel, as they are expensive for VRAM (textures need to be 32-bit to achieve a smooth 8-bit gradient), and may render more slowly than normal textures. http://www.adobe.com/cfusion/knowledgebase/index.cfm?id=tn_15286 The article also points out another thing: do not use textures unless necessary. Which is what I always say. ;-) Ampere ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
