The VRaySoftbox is a procedural texture that can be used in a V-Ray Light to create the illumination coming from a Soft Box light source. The example shown here uses a VRaySoftBox texture attached to a V-Ray Light.

UI Path: Texture > V-Ray > VRaySoftbox

Base Color – Controls the color of the texture.

Use Base Texture – Enabling the checkbox enables the use of maps. When texture use is enabled, the Base Color option is disabled.

Base Texture – Specifies a color to use when the Use Base Texture is enabled. This color can be used to blend with a specified texture for more artistic results.

Texture – Specifies a texture to use when the Use Base Texture is enabled.

Mix Strength – Specifies the blend amount between the base texture and the color.

Tint On – When enabled, the color in the Base Color parameter is multiplied by the Tint Color parameter.

Tint Color – Specifies the color for the tint.

Strength – A multiplier that controls how strong the effect of the Tint Color parameter is.

Processing

Multiplier – A multiplier for the overall VRaySoftBox texture. It acts similar to changing the multiplier of the V-Ray light that uses this texture instead.

Gamma – A gamma correction that is going to be applied to the texture.

Spots On – Enables or disables the hot/dark spot effect.

Multiplier – Controls the strength of the hot/dark spot effect.

Spots Mode – Specifies the effect - a hot or a dark spot:

Hot Spot (Add) – Adds more of the Base Color in the center area of the VRaySoftBox. The amount added corresponds to the Multiplier value.
Dark Spot (Subtract) – Subtracts some of the Base Color in the center area of the VRaySoftBox map. The amount subtracted corresponds to the Multiplier value.

Tint On – When enabled, modifies the color of the spot.

Tint Color – Specifies with what color the spot is modified.

Strength – A multiplier that controls how strong the effect of the Tint Color parameter is. See the Hot Spot vs Dark Spot example for a visual representation.

Tiling Options

Offset U/V – Controls the position of the texture along the U or V axis.

Tile U/V – When enabled, the Tiles U and Tiles V options control the tiling of the texture along the U or V axis. 

Tiles U/V – Controls the tiling of the texture along the U or V axis. 

Fading Options

These options control how the hot/dark spot fades out into the base color.

Outer Radius – The outer radius where the hot spot ends as a fraction of the texture size. 

Inner Radius – The inner radius where the hot spot begins to fade out as a fraction of the texture size.

Softness – Controls the rate, at which the hot spot fades out. See the Tiling and Fading example for a visual representation.

V/U/Radial Vignette

The Gradients options allow for blending gradient textures on top of the VRaySoftbox texture. A gradient vignette can be added in the U and V direction, and also radially. 

On – Enables the Vignette effect. See the U/V Radial Vignette example for a visual representation.

Flip – When enabled, the direction of the Vignette is flipped.

Gradient – Use double click on the gradient swatch to add a new color mark to it or refine the current mark. A set of self-explanatory options is available from the context menu.

Frame

The Frame options multiply the VRaySoftbox texture with a square shape gradient, defined with the gradient swatch. 

On – Enables the Frame. See the Frame example for a visual representation.

Flip – When enabled, the direction of the Frame is flipped.

Gradient – Use double click on the gradient swatch to add a new color mark to it or refine the current mark. A set of self-explanatory options is available from the context menu.

Frame Tint On – When enabled, modifies the color of the gradient.

Frame Tint Color – Specifies the tint color.

Frame Tint Strength – A multiplier that controls how strong the effect of the Tint Color parameter is.

Frame Noise Amount – Controls how strong the Noise effect on the gradients is.

Frame Noise Size – Changes the scale of the noise function.

Frame Noise Phase – Controls the speed of the noise procedural animation.

Fractal Noise – Enables fractal noise.

Fractal Levels – Sets the levels for the fractal function.