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Table of Contents

This page provides information on the V-Ray Bercon Grad Texture.


Overview

The Bercon maps were originally developed by Jerry Ylilammi (https://www.ylilammi.com/posts/2013-09-30-berconmaps) as open-source plug-ins for 3ds Max. Source code ported to V-Ray Standalone by Chaos Software Ltd.

The V-Ray Bercon Grad texture combines features of Gradient Ramp, Falloff, and Particle Age maps and expands them even further. It provides an easier control of color variations between objects and particles.


Main

Color Ramp – A gradient ramp for the Bercon Grad color.

Cam Space – Enables calculations in camera space.

Texture Map – Specifies a texture used for mapped gradient ramp.

Gradient Type – Specifies the gradient type from the following: 1D Linear, 2D Radial, 2D Rectangle, 2D Diagonal, 2D Pong, 2D Spiral, 2D Sweep, 2D Tartan, 3D Spherical, and 3D Box.

Interpolation – Specifies how to interpolate between textures. You can choose between Linear, Smooth, Solid Nearest, Solid Left, and Solid Right.

Ior – Specifies Fresnel IOR to use.

Reverse – Specifies whether to reverse the gradient.

Range Min/Range Max – Defines the range a gradient is drawn.

Range Loop – Specifies how the gradient behaves from None, Tile, Mirror, Stretch.

Use Dist – Enables the use of distortion. When a texture map is connected to this channel, it distorts the V-Ray Bercon Grad texture depending on the texture map.

Dist Str – Specifies the distortion strength. Solid colors have no effect and the more contrast in the connected texture, the more visible the distortion.

Dist Map – Specifies a distortion map.

Type – Specifies a type of placement from UVW, Normal, Distance, Light, Map, Random, Particle Age, Particle Speed, and Particle Size.

Normal Type – Specifies the falloff direction to be used by the Normal Function:

View – Uses the camera viewing direction. This is the most common selection.
Local X / Local Y / Local Z – Uses one of the object's local axes.
World X / World Y / World Z – Uses one of the world axes.
Camera X / Camera Y / Camera Z – Uses one of the camera's axes.
To Object
Object Z

Normal Function – Specifies the type of falloff:

Perpendicular – The falloff depends on whether the normal specified by the Normal Type is parallel or perpendicular to the camera.
Towards – The falloff depends on whether the normal specified by the Normal Type faces the camera towards or backwards.
Fresnel – The falloff depends on the IOR.

Use Curve Input – Specifies whether to use Bezier curves.



Mapping

Type – Specifies the mapping type.



UV Name – The name of the UV channel that is used.

Repeat U – Multiplier for U values.

Repeat V – Multiplier for V values.

Coverage U – U values are remapped to 1.0.

Coverage V – V values are remapped to 1.0.

Translate Frame U – Translates the frame in U direction after applying rotate_frame (and before wrap, coverage, clamp).

Translate Frame V – Translates the frame in V direction after applying rotate_frame (and before wrap, coverage, clamp).

Rotate Frame – Rotates the frame after applying UV noise.

Rotate UV – Rotates the UVs after mirroring.

Offset U – Offset added to U before mirroring (after wrap, coverage, clamp).

Offset V – Offset added to V before mirroring (after wrap, coverage, clamp).

Noise U – Noise magnitude multiplier in U direction.

Nose V – Noise magnitude multiplier in V direction.

Mirror U – When enabled, every other tile outside the [0;1] range is mirrored in U.

Mirror V – When enabled, every other tile outside the [0;1] range is mirrored in V.

Wrap U – When enabled, U values outside the [0;1] range wrap back to [0;1].

Wrap V – When enabled, V values outside the [0;1] range wrap back to [0;1].

Stagger – When enabled, tiles in the V direction add +0.5 to the U value for a 'staggering' effect.




Type – Specifies the type of projection mapping to use from the following:None

Planar
Spherical
Cylindrical
Ball
Cubic
Tri-Planar
Perspective

Projection Camera – Selects a camera.

Projection Camera (LOP) – Same as Projection Camera parameter but for use in the LOP context.

Fit Fill – Specifies how the projection is fitted.
Fit Fill – Fitted to fill the space.
Horizontal – Fitted horizontally.

Vertical – Fitted vertically.

Fit Type – Specifies the type of fitting to use:

None
Match Camera Film Gate
Match Camera Resolution

U / V Angle – Specifies the U / V mapping angle.

Film Gate W / H – Specifies the width / height of the film gate.

Hide Backface – Determines whether to project on back faces of polygons.

Hide Occluded – Determines whether to project on occluded points when using the Perspective Type.

Object Space – When enabled, the projection is applied in the object space of the currently shaded geometry.

Use Reference Points – Uses reference mesh/rest inputs for projection calculations.




Mapping Type – Specifies the type and shape of the texture from the following: Spherical, Angular, Cubic, Mirror Ball, Screen, Spherical (3ds Max), Cylindrical (3ds Max), Shrink Wrap (3ds Max), and Spherical (V-Ray).

Horizontal Flip – Flips the environment horizontally.

Vertical Flip – Flips the environment vertically.

Horizontal Rotation – Specifies the horizontal rotation (left and right).

Vertical Rotation – Specifies the vertical rotation (up and down).

Texture Rotation – Specifies the texture rotation.

Wrap U – If true, U values outside the [0;1] range wrap back to [0;1]. You can choose between the No Wrapping, Wrap and Mirror Tile options.

Wrap V – If true, V values outside the [0;1] range wrap back to [0;1]. You can choose between the No Wrapping, Wrap and Mirror Tile options.

Wrap X – If true, X values outside the [0;1] range wrap back to [0;1]. You can choose between the No Wrapping, Wrap and Mirror Tile options.

Crop U / V / W – Enables or disables cropping in the U / V / W direction.

DUVW Scale – Specifies an additional scale factor for the texture derivatives.

Ground – Enables ground projection of the texture.

Ground Radius – When Ground is enabled, this specifies the radius of the ground.

Ground Position – When Ground is enabled, this specifies the coordinates for the ground.




Color Tweaks

Default Color – Specifies a color when there are no valid uvw coordinates.

Mult – Specifies a multiplier for the texture color.

Offset – Color corrects the texture by adding the RGB color values specified here to the RGB color values in the texture.

Invert – When enabled, the resulting texture color is inverted.



Alpha Tweaks

Source – Specifies the alpha source from Alpha, Color, and Opaque.

Use – Differentiates between textures exported from different applications. You can choose between Color Intensity (3ds Max) and Color Luminance (Maya).

Mult – Specifies a multiplier for the texture alpha.

Offset – Specifies an additional offset for the texture alpha.

Invert – When enabled, the resulting texture alpha is inverted, too. If disabled, just the color is inverted.



Placement

Placement Type – Specifies the way the valid portion of the texture is applied. The options are Full, Crop, and Place.

U/V – Specifies the U/V coordinates of the valid texture sector.

W – Specifies the width of the valid texture sector.

H – Specifies the height of the valid texture sector.

Jitter – Specifies the amount of random placement variation.

Tile U – When enabled, there is horizontal tiling.

Tile V – When enabled, there is vertical tiling.



UV Noise

Enabled – Enables the UV noise.

Amount – Specifies the UV noise amount.

Levels – Specifies the UV noise iterations.

Size – Specifies the UV noise size.

Animated – When enabled, the noise is animated.

Phase – Specifies the UV noise phase.