V-Ray Lens Effects simulates real-world camera lens effects such as bloom and glare. The plug-in uses a fast multi-threaded technique to compute the result and provide immediate update in the new V-Ray VFB. V-Ray Lens Effects are applied in the effectsResult channel together with other post effects executed over the RGB rendered image.
The Lens Effects layer is accessible from the Layers panel in the new VFB and can be activated when the lens effects are enabled. It can be blended with the rest of the layers in the new VFB.
Additionally, V-Ray includes a standalone Lens Effects Generator Tool for composing custom lens filters.
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Lens Effects layer can be disabled from the visibility icon (). Disabled layers are indicated by the icon.
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||V-Ray Frame Buffer|| > Layers > Lens Effects
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Lens FX controls
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Opacity – Controls the weight of the layer. A value of 0 means no effect and a value of 1.0 means full effect.
Enable bloom/glare effect – Enables the V-Ray Lens Effects.
Size – – Specifies the size of the filter as percentage of the image's diagonal. See the Size example below.
Intensity – Multiplier for the bloom/glare source bright pixels. Increasing the value can boost the effect by simulating up to 20 times brighter source. Values lower than 1 can be used to produce subtle bloom/glare from overbright sources.See the Intensity example below.
Bloom – Controls the blend between bloom and glare. A value of 1 forces bloom to be applied to full extent and without any glare. A value of 0 removes the bloom completely and applies only glare. Values in-between blend the two effects proportionally. See the Bloom/Glare example below.
Threshold – Sets a minimum value for the rendered pixels to be considered as lens effects source. The Bloom/Glare effect is generated only regarding pixels with larger value than the specified threshold.
Rotation – Rotates the final result effect, regardless of this is a filter image or a procedurally created one.
Saturation – When the value is set 0, the effects use the original hue of the bright pixels to create bloom and glare. Larger values intensify the hue set with the Cold/Warm option. See the Cold/Warm & Saturation examples below.
Hardware Accelerated – Enable to calculate lens effects on the GPU. When multiple devices are present, V-Ray prioritizes the best one available.
Cold/Warm – When enabled, the Bloom/Glare effect is toned to cold hues. When disabled, the effects receive warm hue. The hue shift requires Saturation values larger than 0. See the Cold/Warm & Saturation examples below.
Interactive – When enabled, the bloom/glare effect is automatically recalculated and applied after any V-Ray lens effects parameter change.
Save Glare channel – When enabled, writes the glare channel to a file when writing all channels.
Update – Manually forces the recalculation of the bloom/glare effects.
Bake intensity – When enabled, the intensity is baked in the Glare channel. Otherwise, a default intensity of 1.0 is saved so that it can be adjusted via post-processing.
Create effectsResult channel – When enabled, it generates an effectsResult channel without needing the Denoiser render element to be active. Otherwise, the lens effects are applied to the RGB channel instead.
