Material

####Inherits: Resource ####Category: Core

Brief Description

Abstract base Resource for coloring and shading geometry.

Member Functions

• void set_flag ( int flag, bool enable )
• bool get_flag ( int flag ) const
• void set_blend_mode ( int mode )
• int get_blend_mode ( ) const
• void set_line_width ( float width )
• float get_line_width ( ) const
• void set_depth_draw_mode ( int mode )
• int get_depth_draw_mode ( ) const

Numeric Constants

• FLAG_VISIBLE = 0 - Geometry is visible when this flag is enabled (default).
• FLAG_DOUBLE_SIDED = 1 - Both front facing and back facing triangles are rendered when this flag is enabled.
• FLAG_INVERT_FACES = 2 - Front facing and back facing order is swapped when this flag is enabled.
• FLAG_UNSHADED = 3 - Shading (lighting) is disabled when this flag is enabled.
• FLAG_ONTOP = 4
• FLAG_LIGHTMAP_ON_UV2 = 5
• FLAG_COLOR_ARRAY_SRGB = 6
• FLAG_MAX = 7 - Maximum amount of flags
• DEPTH_DRAW_ALWAYS = 0
• DEPTH_DRAW_OPAQUE_ONLY = 1
• DEPTH_DRAW_OPAQUE_PRE_PASS_ALPHA = 2
• DEPTH_DRAW_NEVER = 3
• BLEND_MODE_MIX = 0 - Use the regular alpha blending equation (source and dest colors are faded) (default).
• BLEND_MODE_ADD = 1 - Use additive blending equation, often used for particle effects such as fire or light decals.
• BLEND_MODE_SUB = 2 - Use substractive blending equation, often used for some smoke effects or types of glass.
• BLEND_MODE_MUL = 3
• BLEND_MODE_PREMULT_ALPHA = 4

Description

Material is a base Resource used for coloring and shading geometry. All materials inherit from it and almost all VisualInstance derived nodes carry a Material. A few flags and parameters are shared between all material types and are configured here.

Member Function Description

set_flag

• void set_flag ( int flag, bool enable )

Set a Material flag, which toggles on or off a behavior when rendering. See enumeration FLAG_* for a list.

get_flag

• bool get_flag ( int flag ) const

Return a Material flag, which toggles on or off a behavior when rendering. See enumeration FLAG_* for a list.

set_blend_mode

• void set_blend_mode ( int mode )

Set blend mode for the material, which can be one of BLEND_MODE_MIX (default), BLEND_MODE_ADD, BLEND_MODE_SUB. Keep in mind that only BLEND_MODE_MIX ensures that the material may be opaque, any other blend mode will render with alpha blending enabled in raster-based VisualServer implementations.

get_blend_mode

• int get_blend_mode ( ) const

Return blend mode for the material, which can be one of BLEND_MODE_MIX (default), BLEND_MODE_ADD, BLEND_MODE_SUB. Keep in mind that only BLEND_MODE_MIX ensures that the material may be opaque, any other blend mode will render with alpha blending enabled in raster-based VisualServer implementations.

set_line_width

• void set_line_width ( float width )

Set the line width for geometry drawn with FLAG_WIREFRAME enabled, or LINE primitives. Note that not all hardware or VisualServer backends support this (like DirectX).

get_line_width

• float get_line_width ( ) const

Return the line width for geometry drawn with FLAG_WIREFRAME enabled, or LINE primitives. Note that not all hardware or VisualServer backends support this (like DirectX).