Lens Flares ============================================ Lens flares refer to effects generated by the scattering and reflection of light inside the lenses of a camera. These effects can vary greatly depending on the camera, type of lens, type of image source and surroundings and the position of the bright spots (highlights) in relation to the camera. This group contains nodes to build and simulate lens flares. The results aren't fully realistic but they can be fairly accurate (and they look cool). .. warning:: Some of these nodes (specially in presets) eat Gigabytes for breakfast. Watch out for performance issues if you're doing large formats. I've seen as much as ~8-10GB of usage when doing 2K images with the large rainbow preset. .. raw:: html
.. rubric:: Toolkit These nodes are designed to work together to create the overall effect. Think of them as building bricks. .. raw:: html

.. note:: You will usually want to have the Chromas in Lens, or lens reflexes nodes at the beginning, since they a lot on highlights. Basic Glow -------------------------------------------------------------------------------- .. image:: _static/lens/glow.jpg A simple glow around highlight areas. ========================= ======================================================== Inputs Description ========================= ======================================================== Image Original image Size Scale of the glow Threshold Minimum brightness for a pixel to be used for this effect Strength Intensity of the effect Mask Mask out areas of the effect ========================= ======================================================== ======================= ======================================================== Outputs Description ======================= ======================================================== Image The resulting image Flare The lens flare isolated on a black background ======================= ======================================================== Lens Reflexes -------------------------------------------------------------------------------- .. image:: _static/lens/lens_reflexes.jpg Simulates highlights being reflected inside the lenses. ========================= ======================================================== Inputs Description ========================= ======================================================== Image Original image Threshold Minimum brightness for a pixel to be used for this effect Rotation Rotation of the reflexes Blur Blurring the reflexes (recommended for realism) Strength Intensity of the effect Scale Size of reflexes Green Channel Influence Intensity of Green channel reflexes Blue Channel Influence Intensity of Blue channel reflexes Channel Separation Distance between channels Mask Mask out areas of the effect ========================= ======================================================== ======================= ======================================================== Outputs Description ======================= ======================================================== Image The resulting image Flare The lens flare isolated on a black background ======================= ======================================================== Rays -------------------------------------------------------------------------------- .. image:: _static/lens/rays.jpg Simulates rays of light coming from highlights. ========================= ======================================================== Inputs Description ========================= ======================================================== Image Original image Color Colorization of rays (on top of image) Strength Intensity of the effect Position X Horizontal position of rays Position Y Vertical position of rays Width Width of rays (relative to image) Height Height of rays (relative to image) Blur Initial blur of rays Mask Mask out areas of the effect ========================= ======================================================== ======================= ======================================================== Outputs Description ======================= ======================================================== Image The resulting image Flare The lens flare isolated on a black background ======================= ======================================================== Circle Rainbow -------------------------------------------------------------------------------- .. image:: _static/lens/circle_rainbow.jpg Simulates rainbows, also known as chroma hoops. They usually happen around a strong light when it's visible in the image. ========================= ======================================================== Inputs Description ========================= ======================================================== Image Original image Strength Intensity of the effect Position X Horizontal position of rainbow circle Position Y Vertical position of rainbow circle Width Width of rainbow Height Height of rainbow Blur Final blurring Mask Mask out areas of the effect ========================= ======================================================== ======================= ======================================================== Outputs Description ======================= ======================================================== Image The resulting image Flare The lens flare isolated on a black background ======================= ======================================================== Simple Circle -------------------------------------------------------------------------------- .. image:: _static/lens/circle_simple.jpg Simulates a simple glow ring. ========================= ======================================================== Inputs Description ========================= ======================================================== Image Original image Thickness Thickness of circle Strength Intensity of the effect Position X Horizontal position of circle Position Y Vertical position of circle Width Width of circle Height Height of circle Blur Final blurring Mask Mask out areas of the effect ========================= ======================================================== ======================= ======================================================== Outputs Description ======================= ======================================================== Image The resulting image Flare The lens flare isolated on a black background ======================= ======================================================== Streaks -------------------------------------------------------------------------------- .. image:: _static/lens/streaks.jpg Simulates anamorphic light streaks (as generated by film cameras). ========================= ======================================================== Inputs Description ========================= ======================================================== Image Original image Colorization Apply a color to streaks Strength Intensity of the effect Threshold Minimum brightness for a pixel to be used for this effect Color Influence Intensity of colorization (0 uses image colors) Rotation Rotation of the streaks Position X Horizontal position of streaks Position Y Vertical position of streaks Width Width of the streaks Height Height of the streaks Blur Final blurring of the streaks Mask Mask out areas of the effect ========================= ======================================================== ======================= ======================================================== Outputs Description ======================= ======================================================== Image The resulting image Flare The lens flare isolated on a black background ======================= ======================================================== Chromas in Lens -------------------------------------------------------------------------------- .. image:: _static/lens/chromas.jpg Simulates highlights being dispersed as they hit the lenses. ========================= ======================================================== Inputs Description ========================= ======================================================== Image Original image Strength Intensity of the effect Threshold Minimum brightness for a pixel to be used for this effect Rotation Rotation of chromas Scale Scaling of chromas (relative to image) Lens Distortion Amount of "roundness" to the chromas Blur Final blurring of chromas Mask Mask out areas of the effect ========================= ======================================================== ======================= ======================================================== Outputs Description ======================= ======================================================== Image The resulting image Flare The lens flare isolated on a black background ======================= ======================================================== .. raw:: html

.. rubric:: Presets These nodes are built on the previous *toolkit* nodes. They are meant to be an example of how to use the toolkit nodes together. You can use these nodes as they are, but you will often find it more flexible to use the toolkit nodes directly in your compositions. .. raw:: html

Simple -------------------------------------------------------------------------------- .. image:: _static/lens/simple.jpg A simple lens flare including light rays, lens reflexes and chromas in lens. =========================== =================================================== Inputs Description =========================== =================================================== Image Original image Threshold Minimum brightness for a pixel to be used for this effect Rays - Strength Intensity of rays Rays - Position X Horizontal position of rays Rays - Position Y Vertical position of rays Reflexes - Strength Intensity of lens reflexes Reflexes - Rotation Rotation of lens reflexes Chroma Reflexes - Strength Intensity of chroma reflexes Mask Mask out areas of the effect =========================== =================================================== ======================= ======================================================== Outputs Description ======================= ======================================================== Image The resulting image ======================= ======================================================== Colored with Streaks -------------------------------------------------------------------------------- .. image:: _static/lens/colored_streaks.jpg A more fantasy oriented lens flare. Includes chromas in lens, basic glow and streaks. =========================== =================================================== Inputs Description =========================== =================================================== Image Original image Color Colorization Color Influence Intensity of colorization (0 uses image colors) Strength Intensity of the effect Threshold Minimum brightness for a pixel to be used for this effect Streaks - Position X Horizontal position of streaks Streaks - Position Y Vertical position of streaks Streaks - Length Width of streaks Chromas In Lens - Strength Intensity of chroma reflexes Glow - Strength Intensity of base glow Glow - Size Scale of base glow Mask Mask out areas of the effect =========================== =================================================== ======================= ======================================================== Outputs Description ======================= ======================================================== Image The resulting image ======================= ======================================================== Circles & Streaks -------------------------------------------------------------------------------- .. image:: _static/lens/circles_streaks.jpg A more complete lens flare. Looks best when there's one strong light source, fully visible in the image. Includes Chromas in Lens, Circle Rainbow, Lens Reflexes and Streaks. =========================== =================================================== Inputs Description =========================== =================================================== Image Original image Threshold Minimum brightness for a pixel to be used for this effect Chromas - Strength Intensity of chroma reflexes Rainbow - Strength Intensity of rainbow circles Reflexes - Strength Intensity of lens reflexes Streaks - Strength Intensity of streaks Streaks - Position X Horizontal position of streaks Streaks - Position Y Vertical position of streaks Streaks - Rotation Rotation of streaks Rainbow - Position X Horizontal position of rainbow circle Rainbow - Position Y Vertical position of rainbow circle Mask Mask out areas of the effect =========================== =================================================== ======================= ======================================================== Outputs Description ======================= ======================================================== Image The resulting image ======================= ======================================================== Color Streaks -------------------------------------------------------------------------------- .. image:: _static/lens/color_streaks.jpg A more sci-fi oriented lens flare. Includes Chromas in Lens, Circle Simple and streaks. =========================== =================================================== Inputs Description =========================== =================================================== Image Original image Center - Circle Color Color for circle center Colorization Color to tint flare Position Position of streaks (in Y) Rotation Rotation of streaks and circle Mask Mask out areas of the effect =========================== =================================================== ======================= ======================================================== Outputs Description ======================= ======================================================== Image The resulting image ======================= ======================================================== Large Rainbow with Streaks -------------------------------------------------------------------------------- .. image:: _static/lens/large_rainbow.jpg A more realistic lens flare. Looks best when there's a strong light source visible in the image. Includes Chromas in Lens, Lens Reflexes, Rays, Circle Rainbow and Streaks. =========================== =================================================== Inputs Description =========================== =================================================== Image Original image Threshold Minimum brightness for a pixel to be used for this effect Rainbow - Scale Scale of rainbow circles Rainbow - Strength Intensity of rainbow circles Rays - Color Color of rays Rays - Scale Size of rays Rays - Strength Intensity of rainbow circles Chromas - Strength Intensity of chroma reflexes Chromas - Scale Size of chroma reflexes Reflexes - Strength Intensity of lens reflexes Streaks - Strength Intensity of streaks Streaks - Position Y Vertical position of streaks Streaks - Color Color of streaks Streaks - Height Height of streaks Streaks - Rotation Rotation of streaks Mask Mask out areas of the effect =========================== =================================================== ======================= ======================================================== Outputs Description ======================= ======================================================== Image The resulting image ======================= ========================================================