some improvements to sculptmap alpha handling and LOD
some improvements to sculptmap alpha handling and LOD

ft-/arribasim-dev-tests,ft-/arribasim-dev-extras,Michelle-Argus/ArribasimExtract,EriHoss/OpenSim_0.8.2.0_Dev_LibLSLCC,TomDataworks/opensim,AlexRa/opensim-mods-Alex,ft-/opensim-optimizations-wip-extras,N3X15/VoxelSim,ft-/arribasim-dev-extras,justinccdev/opensim,allquixotic/opensim-autobackup,TomDataworks/opensim,ft-/opensim-optimizations-wip-tests,OpenSimian/opensimulator,ft-/arribasim-dev-tests,cdbean/CySim,N3X15/VoxelSim,cdbean/CySim,allquixotic/opensim-autobackup,TechplexEngineer/Aurora-Sim,ft-/opensim-optimizations-wip-extras,RavenB/opensim,M-O-S-E-S/opensim,RavenB/opensim,bravelittlescientist/opensim-performance,ft-/opensim-optimizations-wip,TomDataworks/opensim,AlexRa/opensim-mods-Alex,bravelittlescientist/opensim-performance,ft-/opensim-optimizations-wip,rryk/omp-server,EriHoss/OpenSim_0.8.2.0_Dev_LibLSLCC,BogusCurry/arribasim-dev,RavenB/opensim,justinccdev/opensim,RavenB/opensim,BogusCurry/arribasim-dev,TomDataworks/opensim,N3X15/VoxelSim,M-O-S-E-S/opensim,M-O-S-E-S/opensim,TechplexEngineer/Aurora-Sim,QuillLittlefeather/opensim-1,justinccdev/opensim,RavenB/opensim,rryk/omp-server,OpenSimian/opensimulator,AlexRa/opensim-mods-Alex,BogusCurry/arribasim-dev,ft-/arribasim-dev-tests,ft-/opensim-optimizations-wip,M-O-S-E-S/opensim,ft-/arribasim-dev-extras,AlexRa/opensim-mods-Alex,cdbean/CySim,BogusCurry/arribasim-dev,QuillLittlefeather/opensim-1,QuillLittlefeather/opensim-1,OpenSimian/opensimulator,justinccdev/opensim,RavenB/opensim,allquixotic/opensim-autobackup,allquixotic/opensim-autobackup,TechplexEngineer/Aurora-Sim,BogusCurry/arribasim-dev,EriHoss/OpenSim_0.8.2.0_Dev_LibLSLCC,rryk/omp-server,ft-/opensim-optimizations-wip-tests,ft-/opensim-optimizations-wip-tests,Michelle-Argus/ArribasimExtract,M-O-S-E-S/opensim,ft-/arribasim-dev-tests,Michelle-Argus/ArribasimExtract,bravelittlescientist/opensim-performance,TomDataworks/opensim,RavenB/opensim,rryk/omp-server,Michelle-Argus/ArribasimExtract,M-O-S-E-S/opensim,cdbean/CySim,QuillLittlefeather/opensim-1,ft-/arribasim-dev-tests,QuillLittlefeather/opensim-1,ft-/opensim-optimizations-wip-extras,rryk/omp-server,bravelittlescientist/opensim-performance,justinccdev/opensim,N3X15/VoxelSim,N3X15/VoxelSim,OpenSimian/opensimulator,bravelittlescientist/opensim-performance,EriHoss/OpenSim_0.8.2.0_Dev_LibLSLCC,ft-/opensim-optimizations-wip-tests,ft-/opensim-optimizations-wip-extras,OpenSimian/opensimulator,AlexRa/opensim-mods-Alex,Michelle-Argus/ArribasimExtract,rryk/omp-server,bravelittlescientist/opensim-performance,OpenSimian/opensimulator,ft-/opensim-optimizations-wip-extras,ft-/opensim-optimizations-wip-tests,ft-/arribasim-dev-extras,BogusCurry/arribasim-dev,QuillLittlefeather/opensim-1,TomDataworks/opensim,OpenSimian/opensimulator,allquixotic/opensim-autobackup,cdbean/CySim,QuillLittlefeather/opensim-1,M-O-S-E-S/opensim,ft-/arribasim-dev-tests,EriHoss/OpenSim_0.8.2.0_Dev_LibLSLCC,EriHoss/OpenSim_0.8.2.0_Dev_LibLSLCC,TomDataworks/opensim,EriHoss/OpenSim_0.8.2.0_Dev_LibLSLCC,cdbean/CySim,N3X15/VoxelSim,ft-/opensim-optimizations-wip,allquixotic/opensim-autobackup,AlexRa/opensim-mods-Alex,TechplexEngineer/Aurora-Sim,ft-/arribasim-dev-extras,N3X15/VoxelSim,ft-/arribasim-dev-extras,N3X15/VoxelSim,Michelle-Argus/ArribasimExtract,justinccdev/opensim