liq| shadergraph| rm|: output for float array parameter (other type array parameters are not implemented)
liq| test| er|: update shader_graph_phong_transparent.ma
liq| test|: +three boxes
liq| test|: lambert, phong
liq| test|: automation test - use stander image path for the output image path
liq| test|: point light
liq| test|: spot light
liq| test|: directional light
liq| rm|: ambient light
liq| test|: maya area light (but it is black with rm)
liq| test| er|: quard light (liquidShaderNode)
liq| test| er|: point light (liquidLight node)
liq| test| er|: point light (liquidShader node)
liq| test| er|: qurd light (liquidShader node)