add precision into .vert to be sync with .frag and avoid compilation error
remove editor warning in web/index.dart
ignore deploy/ directory (generated by 'pub deploy')
add precision into .vert to be sync with .frag and avoid compilation error
renderera: allow to change clear color
group some utils function into MeshDefTools + add makeExtrude
clean import
RendererA start support of transparancy
complete isClowise test with a check against center (to detect front or back normal)
update index.dart
index.dart: use vec4 for color
fix free of memory on Mesh.setData (and fix display of wireframe in index.dart)
add a basic Tracer to gl's call
fix html syntax
asset_pack: ProgramContextImporter use cache
fix when RendererA.viewport = null