mesh_base

Color is a color picker to choose a color multiplier for the emission texture.

Scale is a coefficient to scale emission texture intensity. The higher the value, the lighter and brighter light areas of the emission texture are.

UV Transform AO is an ambient occlusion texture transformation parameter.

Animation parameters are available on the Parameters tab if the Animation option is enabled.

• Stem Noise Scale — a coefficient to scale spatial noise that diversifies the movement direction of vegetation stems. This coefficient should be identical for the stem and the leaves that are related to this stem to synchronize their movement.

  

  Stem Noise Scale: 0.0, 0.5, and 1.0

• Stem Offset — a coefficient to scale an amplitude of horizontal movement for the vegetation stem. This coefficient should be identical for the stem and the leaves that are related to this stem to synchronize their movement.

  

  Stem Offset: 0.5, 1.0, and 1.5

• Stem Radius — a coefficient to scale an amplitude of vertical movement for the vegetation stem. This coefficient should be identical for the stem and the leaves that are related to this stem to synchronize their movement.

  

  Stem Radius: 0.0, 5.0, and 10.0

• Stem Animation Speed — a coefficient to scale the speed of stem movements. This coefficient should be identical for the stem and the leaves that are related to this stem to synchronize their movement.

  

  Stem Animation Speed: 0.0, 4.0, and 8.0
• Field Mask — a mask that specifies an area of the animation field to be applied to stems and leaves (if rendered). This mask must match the field mask of the animation field.
  Notice

  The Field Mask parameter is available only if the Animation state is set to Field.

If leaves are rendered, the following animation parameters are also available:

• Leaves Noise Scale — a coefficient to randomize the orientation and direction of rotation for leaves (seen only on several nodes with the same material). By the minimum value of 0, all leaves are synchronized in their movement. Higher values make leaves randomly move in different directions.

  Leaves Noise Scale: 50.0	Leaves Noise Scale: 1.0, 10.0, and 20.0	Leaves Noise Scale: 0.0 and 3.0

• Leaves Offset — a coefficient to scale leaves rotation amplitude. By the minimum value of 0, leaves do not move at all. Higher values make leaves move with a greater amplitude.

  Leaves Offset: 1.785	Leaves Offset: 0.06, 0.08, and 0.1	Leaves Offset: 0.05 and 0.1

• Leaves Animation Speed — a coefficient to scale the speed of leaves rotation. By the minimum value of 0, leaves do not move at all. Higher values make leaves move faster.

  Leaves Animation Speed: 0.765 and 2.287	Leaves Animation Speed: 0.0, 1.0, and 4.0	Leaves Animation Speed: 2.0 and 5.0

• Branch Offset — a coefficient to scale the rotation amplitude for a whole branch. Available for the vertex color based geometry only.

  

  Branch Offset: 0.1 and 0.3

• Branch Animation Speed — a coefficient to scale the rotation speed for a whole branch. Available for the vertex color based geometry only.

  

  Branch Animation Speed: 3.0 and 8.0

The parameter sets an offset of leaves shadows. Available in the Parameters tab when the Shadow Offset option is enabled.

Shadow offset = 0.0	Shadow offset = 0.1

Noise texture intensity. By the maximum value of 1, the color noise is fully visible.

Intensity = 0.0	Intensity = 0.5	Intensity = 1.0

Noise texture native coordinates transformation represented by a vector of the four float components.

A single channeled spatial color noise texture used to randomize the coloring of leaves according to the gradient color texture.

A gradient texture that modulates leaves colors (for example, from bright green to yellow). 0.5 means the texture does not affect leaf color. Higher values lighten the colors (are added). Lower values darken the colors (are subtracted).

Noise texture intensity. By the maximum value of 1, the color noise is fully visible.

Intensity = 0.0	Intensity = 0.5	Intensity = 1.0

Noise texture native coordinates transformation along X, Y and Z axes. A vector of the three float components:

• By high values, color blobs are small in size (for example, several blobs per leaf). Tiles of the spatial noise texture are small and repeat often
• By low values, color blobs are big (for example, several blobs for the whole tree). Tiles of the spatial noise texture are big and repeat a few times

UV transform = vec3(0.1)	UV transform = vec3(0.01)

Scale is a multiplier for the bevel's radius.

SSBevel UV Transform sets coordinates transformation for the SSBevel map. To specify which UV coordinates of the mesh should be used for the bevel texture, go to the States tab and set the SSBevel value in the UV Mapping section.

Triplanar Blend - triplanar blending factor.

Scale factor for the SSDirt effect in concave areas. Higher values result in more pronounced effect in slits and cavities.

Scale factor for the SSDirt effect in convex areas. Higher values result in more pronounced effect on edges and convexities.

UV-coordinates transformation for textures applied in concave and convex areas.

Parallax map stores information about per-pixel parallax displacement.

The texture uses only R channel:

• White color indicates that the pixels are not displaced.
• Black color indicates that the pixels will be depressed farthest away.

Parallax Height#

Height is a coefficient to scale the power of the parallax texture displacements. The higher the value, the bigger the normals are.

Height = 0.01	Height = 0.03	Height = 0.05

Min Layers#

Max Layers#

Noise#

Cutout UV Transform#

Tessellation is intended to add extruded details (spikes and indentations, fine embossed details) rather than drastically change the relief of the coarse mesh. Tessellated Displacement does not affect vertex normals and texture coordinates, so extreme extrusion makes it prone to noticeable visual artifacts, such as texture stretching and inaccurate lighting.

The displacement is applied along the surface normal so tessellated meshes composed of separate parts with hard edges are prone to cracking. To avoid such artifacts, it is recommended to make sure the portions share vertices and edges and have smooth or matching tangents. Another solution would be to create additional polygons that will cover cracked areas from the inside.

Also, displacement applied to polygons from divergent UV shells results in small yet noticeable inconsistency. A decent solution is to paint similar color values on adjacent pixels of divergent UV shells to make sure the Displacement texture doesn't change on junctions.

The Displacement effect is bound to the scale of the node, so be careful when dealing with meshes that have different scale but share the same material with Tessellated Displacement enabled. Once combined for optimization purposes, the tessellation scale on such meshes may become significantly different. So such meshes are to be treated separately.

Available options are:

• Shadow - enable shadow casting from tessellated polygons. This option doubles the number of rendered tessellated polygons, so it is recommended to use it carefully.

  Disabled Shadow	Enabled Shadow

• Density Map - enable tessellation density control based on the Tessellation Density Map texture. Lighter pixels of the Density map indicate polygons that should be tessellated more densely.
  Notice

  The Density Map is sampled at vertices of the control mesh. If the darkened area is too small to cover control mesh vertices, it will not affect the final result.

  Disabled Density Map	Enabled Density Map

Displacement Texture (height map) stores information about per-pixel Tessellated Displacement.

The texture uses only R channel:

• White color indicates that the pixels will be extruded farthest out.
• Black color indicates that the pixels will be depressed farthest away.

Best Practice

For better quality, it is recommended to use a normalized displacement texture, so black pixels correspond to the most depressed areas and white pixels correspond to the most extruded areas.

Unnormalized displacement texture	Normalized displacement texture

Tessellation Density Map stores information about areas that should be tessellated more densely.

The texture uses only R channel:

• White color corresponds to the maximum tessellation density.
• Black color corrseponds to the minimum tessellation density.

Smoothness#

Smoothness is a coefficient of Phong smoothing of tessellated polygons to get rid of blocky look. Note that normals of vertices are not modified.

Smoothness = 0.0	Smoothness = 1.0

Scale#

Scale parameter specifies the intensity of displacement in units.

Scale = 0.1	Scale = 0.4

Mid Point#

Texture Exponent#

Shadow Offset#

Factor#

Factor is a coefficient of tessellation intensity. The higher the value, the more dense the mesh will be.

Factor = 0.1	Factor = 0.5

Density#

Density is coefficient for subpixel reduction of polygons. The value of 1 corresponds to the highest mesh density defined by the Factor parameter.

Notice

Although lower values help significantly reduce the number of polygons and improve the performance, be careful as visual artifacts may appear when the camera moves. To get rid of wiggling and keep the small number of polygons, it is recommended to increase the Density and decrease the Factor values.

Density = 0.1; Factor = 0.5	Density = 1.0; Factor = 0.5

Shadow Factor#

Shadow Density#

The following parameters define the tessellation falloff with the distance for optimization purposes.

Near#

Far#

Exp#

Max Mip#

The following group of parameters determines the operation of backface tessellation culling optimization.

Near#

Back Face#

Back Face parameter determines the angle between the camera and a polygon of the control mesh, at which this polygon is not tessellated.

Back Face = 0.0	Back Face = 1.0

Screen Border#

Shadow Back Face#

Shadow Screen Border#

Displacement Texture stores information about per-pixel Tessellated Vector Displacement.

The texture uses RGB channels:

• R channel controls displacement along the X axis.
• G channel controls displacement along the Y axis.
• B channel controls displacement along the Z axis.

Available options correspond to the common tessellation displacement parameters, however, the Scale parameter has a different application:

Scale#

Vertex inflation value in units.

IOR sets the Index of Refraction (IOR) for the materal. The higher the value, the more intense the refraction is.

Power = 1.04	Power = 1.16

Ray Length represents length of refracted rays. This parameter is used for visual correction of refractions, depending on the distance from the surface to objects behind it.

Ray length = 1.0	Ray length = 2.0	Ray length = 5.0

Normal map is a coefficient to scale the intensity of the normals (provided by a normal map). The higher the value, the higher the normal texture effect is.

Normal map = 0.0	Normal map = 1.0	Normal map = 2.0

Albedo texture specifies the color of the surface.

Without albedo texture	With albedo texture

The texture is 4-channeled:

1. RGB values store color information.
2. An alpha (A) value stores transparency information:
   • White color indicates that the area will be visible.
   • Black color indicates that the area will be transparent.

Shading texture is a container for four different textures:

• The R channel stores a metalness texture.
• The G channel stores a roughness texture.
• The B channel stores a specular texture.
• The A channel stores a microfiber texture.

Metalness Texture#

A metalness texture stores information about material's metalness:

• White pixels indicate that material is metal.
• Black pixels indicate that material is dielectric.

The whole applied texture channel is white	The applied texture channel is partially white (reflective areas) and black (non-reflective white splashes)

Roughness Texture#

A roughness texture stores information about material's roughness:

• White pixels indicate that material is rough.
• Black pixels indicate that material is smooth.

Without the applied texture channel	With the applied texture channel

Specular Texture#

A specular texture stores the light reflectance information. It defines shininess and a highlight color of the surface. The lighting is calculated as a Lambertian lighting model plus a surface angle, light angle, and viewing angle dependent specular highlight (Blinn-Phong lighting model).

Notice

To use this channel, enable the Specular state.

• White color indicates that the area will be reflective.
• Black color indicates that there will be no reflections.

Without the applied specular texture channel	With the applied specular texture channel

Microfiber Texture#

A microfiber texture creates an effect of napped surface. The lighter the pixel, the more napped material will be.

Notice

To use this channel, enable the Microfiber state.

Without fibers texture	With fibers texture

Normal map stores height information required to achieve an effect of Normal Mapping (a technique creating the illusion of depth for adding details without using additional polygons). When calculating lighting of the surface, the mesh geometry is overridden by the normals value.

Without normal map	With normal map

The texture is 2-channeled:

1. RG values store two components of a surface normal.
2. B value is calculated based on the R and G values in run-time.

Diffuse texture specified the color of the surface. It is lightened according to a Lambertian lighting model (light intensity is permanent regardless of the camera motion and rotation and depends solely on the angle between the surface and the light direction).

The texture is 4-channeled:

1. RGB values store color information.
2. An alpha (A) value stores:
   • Transparency information (if the Alpha test option is enabled):
     • White color indicates that the area will be visible.
     • Black color indicates that the area will be transparent.
   • Detail mask.

Normal map stores height information required to achieve an effect of Normal Mapping (a technique creating the illusion of depth for adding details without using more polygons). When calculating lighting of the surface, the mesh geometry is overridden by the normals value.

The texture is 2-channeled:

1. RG values store two components of a surface normal.
2. B value is calculated based on the R and G values in run-time.

Specular map stores the light reflectance information. It defines shininess and a highlight color of the surface. The lighting is calculated as a Lambertian lighting model plus a surface angle, light angle, and viewing angle dependent specular highlight (Blinn-Phong lighting model).

The texture is 4-channeled:

1. RGB values store reflection color and intensity:
   • White color indicates that the area will be reflective.
   • Black color indicates that there will be no reflections.
2. An alpha (A) value specified the specular power (Gloss):
   • White color indicates that the specular highlights are very bright and intense.
   • Black color indicates that the specular highlights are dull.

Microfiber texture creates an effect of napped surface. The lighter the pixel, the more napped material will be.

Without microfiber texture	With microfiber texture

The texture uses only R channel.

Detail blend mask is a mask for two detail textures. Determines the way for two base and detail textures to be rendered.

The texture is 1-channeled:

1. R values store information about which textures will be rendered:
   • Black areas - base textures will be shown.
   • Red areas - detail textures will be shown.

Click the Gear icon to open the drop-down menu.

There are three modes available:

• Simple mode provides adjustment of the default parameters for texture coordinates transformation.

  • Scale X - the first component of the vector defining the scale along the X axis.
  • Scale Y - the second component of the vector defining the scale along the Y axis.
  • Offset X - the third component of the vector defining the offset along the X axis.
  • Offset Y - the fourth component of the vector defining the offset along the Y axis.

• Animated mode provides the parameters of procedural animation of texture coordinates.

  

  • Scale X - the first component of the vector defining the scale along X axis.
  • Scale Y - the second component of the vector defining the scale along Y axis.
  • Frequency - the frequency of the circular motion.
  • Amplitude - the maximum extent of the circular motion, in pixels.
  • Velocity - the velocity of the constant linear offset, in pixels per frame.
  • Angle - the direction of the constant linear offset, in degrees.

• Expression mode allows using expressions in the parameter field. The type of the expression result must be one of the following:

  • int - an integer number.

    

    The result will be equal to vec4(4.0f, 4.0f, 4.0f, 4.0f)

  • long - a long integer.

    

    The result will be equal to vec4(2.0f, 2.0f, 2.0f, 2.0f)

  • float - a floating point value.

    

    The result will be equal to vec4(3.0f, 3.0f, 3.0f, 3.0f)

  • double - a double value.

    

    The result will be equal to vec4(7.4, 7.4, 7.4, 7.4)

  • vec3 - a vector of three float components.

    

    The result will be equal to vec4(2.0f, 2.0f, 2.0f, 1.0f)

  • vec4 - a vector of four float components.

    

    The result will change in Offset Y each frame due to time.

    

  • dvec3 - a floating point value.

    

    The result will be equal to vec4(2.0f, 2.0f, 2.0f, 1.0f)

  • dvec4 - a floating point value.

    

    The result will be equal to vec4(2.0f, 2.0f, 2.0f, 2.0f)

  A number of aliases to variables and functions are available from the expression, for convenience:

  • ifps - a global variable referring to the engine.game.getIFps() function.
  • time - a variable referring to the engine.game.getTime() function.
  • noise( float pos, float size, int frequency ) - a function referring to the engine.game.getNoise1() function.
  • random( float from, float to ) - a function referring to the engine.game.getRandomFloat() function.
  • getNode() - a function returning a current node pointer.
  • getParent() - a function returning a parent node pointer.
  • getNumChildren() - a function returning the number of children nodes.
  • getChild( int num) - a function returning a node child by its number.
  • getState( string name ) - a function returning a specified state of the current material.
  • getParameter*( string name ) - a function returning the value of a specified parameter of the current material.

Albedo#

Metalness#

Specular#

Specular is a multiplier for the intensity of highlight provided by the specular texture.

Specular = 0.0	Specular = 0.5	Specular = 1.0

Roughness#

Normal Intensity#

Translucent#

Translucent is a scale of the translucency effect, which permits light to pass through the object, but diffuses it so objects on the opposite side are not clearly visible.

Translucent = 0.0	Translucent = 0.5	Translucent = 1.0

Microfiber#

Transparent Multiplier#

Transparent multiplier is a multiplier of material's transparency. The higher the value, the less transparent the material.

Notice

The parameter is available for transparent objects only.

Transparent multiplier = 0.7; Transparent pow = 1.0	Transparent multiplier = 1.0; Transparent pow = 1.0	Transparent multiplier = 1.3; Transparent pow = 1.0

Transparent Pow#

Transparent pow is a power of material's transparency. The higher the value the more transparent the material.

Notice

The parameter is available for transparent objects only.

Transparent pow = 0.5; Transparent multiplier = 1.0	Transparent pow = 1.0; Transparent multiplier = 1.0	Transparent pow = 1.5; Transparent multiplier = 1.0

UV Transform#

Triplanar Blend#

Diffuse#

Diffuse defines the base color of the surface.

Specular#

Specular is a color picker to choose the auxiliary specular color for the specular texture. It can be used for specifying different specular colors for one texture or modifying the texture color on the spot. The specular color of the texture and this color will be blended.

Gloss#

Gloss is a coefficient modifying the size of the highlight (Phong shading). Low values imitate wider highlights, typically appropriate to create diffuse reflection from mat surfaces. High values imitate pinpoint highlights, typically appropriate to create uniform reflection of light rays from glossy surfaces.

Microfiber#

Normal Intensity#

Translucent#

Translucent is a scale of the translucency effect, which permits light to pass through the object, but diffuses it so objects on the opposite side are not clearly visible.

Translucent = 0.0	Translucent = 0.5	Translucent = 1.0

Transparent Multiplier#

Transparent multiplier is a multiplier of material's transparency. The higher the value, the less transparent the material.

Notice

The parameter is available for transparent objects only.

Transparent multiplier = 0.7; Transparent pow = 1.0	Transparent multiplier = 1.0; Transparent pow = 1.0	Transparent multiplier = 1.3; Transparent pow = 1.0

Transparent Pow#

Transparent pow is a power of material's transparency. The higher the value the more transparent the material.

Notice

The parameter is available for transparent objects only.

Transparent pow = 0.5; Transparent multiplier = 1.0	Transparent pow = 1.0; Transparent multiplier = 1.0	Transparent pow = 1.5; Transparent multiplier = 1.0

UV Transform#

Triplanar Blend#

A set of the shading parameters for detail textures:

Albedo#

Metalness#

Roughness#

Microfiber#

UV Transform#

Triplanar Blend#

Visibility#

Visibility specifies a multiplier of visibility of the detail texture.

In the example below, Angle fade is set to Object transform.

Visibility = 0.5; Visibility threshold = 1.0	Visibility = 1.0; Visibility threshold = 1.0	Visibility = 2.0; Visibility threshold = 1.0

Visibility Threshold#

Visibility threshold influences to sharpness of the smooth transitions between the base and detail textures.

In the example below, Angle fade is set to Object transform.

Visibility threshold = 0.0; Visibility = 1.0	Visibility threshold = 0.5; Visibility = 1.0	Visibility threshold = 1.0; Visibility = 1.0

Albedo Visibility#

Albedo visibility specifies the influence of the detail texture albedo over the base texture albedo.

In the example below, Detail blending is set to Overlay, the base albedo texture is yellow and the detail albedo texture is red.

Albedo visibility = 0.0	Albedo visibility = 0.5	Albedo visibility = 1.0

Metalness Visibility#

Metalness visibility specifies the influence of the detail texture metalness over the base texture metalness.

In the example below, Detail blending is set to Overlay, the base texture metalness is set to 0.7 and the detail texture metalness is 0.1. So, increasing the metalness visibility leads decreasing the resulting metalness of the material.

Metalness visibility = 0.0	Metalness visibility = 0.5	Metalness visibility = 1.0

Roughness Visibility#