In 3ds Max 2014 (früher vielleicht auch schon), läuft der user_ibl_rect shader eigentlich recht gut. Um ihn zu verwenden muss er in dem „standard.mi“ file verlinkt werden.
Hier noch eine passende GUI dafür:
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gui "gui_user_ibl_rect" { control "Global" "Global" ( "uiName" "User IBL Rectangle" ) control "texture" "color texture" ( "uiName" "HDR Texture" ) control "samples" "integer" ( "uiName" "Samples", "value" 0, "nonConnectable" ) control "color" "color" ( "uiName" "Color", "value" 1 1 1 ) control "intensity" "scalar" ( "uiName" "Intensity", "value" 1.0 ) control "shadow_mode" "integer" ( "uiName" "Shadow Mode", "enum", "value" "0 no shadow, 1 opaque, 2 transparent", "range" 0 2, "nonConnectable" ) control "cone" "scalar" ( "uiName" "Cone", "value" 90.0 ) control "falloff" "scalar" ( "uiName" "Falloff", "value" 2.0 ) control "angular_falloff" "scalar" ( "uiName" "Angular Falloff", "value" 1.0 ) control "swap_uv" "boolean" ( "uiName" "Swap UV", "nonConnectable" ) } |
Vielleicht zu dem Thema die Tage noch mehr.