The higher the number of samples, the lower the noise, and the longer it takes to render. The sun would cast much darker shadows in real life. Having dealt with light quantity, conside-ration must be given to the quality of light, the difference between diffuse light and directed light being one of the most important aspects. Unreal Engine posted an excellent MasterClass talk by Jerome Platteaux on Lighting during Unreal Dev Day Montreal 2017. The light source tells you where to draw all the light values and shadows. So the closer you are to the light source, the harder the edge. For more information, see Shadows. Objects that are set to cast Real-Time shadows beyond this distance will not be. It can create excessively dark shadows tinged with the color of the light_environment ambient color plus the setting of the light_directional. This is not the case when using the Vray sun. We understand how to use hard light, when to use soft light, and get excited by directional light. The following example shows a card with an elevation of 6dp. Nothing happens. Directional Light Settings For performance reasons, Light Propagation Volumes only use Directional Lights as incoming light. That is, the light is positioned at approximately a 45° angle from the photographer. Solved: Im using Arnold skydome ligth, plus add one directional Light with shadow but i cant blur the directional light shadow, how can i blur the yes soft shadow. light shadows. Here's how to properly use a shoot-through umbrella light for your YouTube videos: Characteristics of. Other light sources work as intended. It gives a visual representation as to the extend of the light. But I have shadows issue, as mentioned in some posts above; I opened your project (HDRI_Setup level), added a simple asset, rebuild lighting (Production)… but NO SHADOWS. The method computes a so calledReflective Shadow Map nearby the camera. Soft "Directional Light" Shadows. After you've. The Shadow rays attribute controls the sampling of the shadows (kind of like the dmap filter). This method of shadowing was used extensively in the Kite Demo and in Fortnite that are made by Epic Games. Hard light happens at mid-day or in a room with a single bright light source. Light source An obvious place to start - in this implementation we will discuss a point light source, although extending the method to include directional lights as well would be easily done, as is adding ambient lighting into the system. When the directional light is made movable it will not render shadows at all. The area light works much like the photographer’s soft box diffuser functions in the real world: It allows for a volume of illumination to be emitted from a large surface, filling a space with diffuse lighting. How to use Diffused Lighting. When you use a flash, on or off camera, you are using a relatively small, hard, directional light source. The design layer containing the light source must contain 3D geometry upon which to project the light, and the 3D objects must not have a perfectly black fill (which absorbs all light). The shadow and angle_falloff parameters are ignored, the values shadow = 0, angle_falloff = 0 are supposed. A softbox can serve as a primary or secondary light source in a scene. This type of light source emits light in all directions. ) 2nd image: How the aiShadowMatte is capturing the shadow just from the directional light and not the skydome as well: Thanks for any info on this. This decreases the harshness of shadows and highlights in a scene, which generally renders surfaces in a more pleasing manner. While portraiture benefits from diffused (“soft”) light, which doesn’t create unpleasant sharp shadows on the face, other genres demand harder light. Light Properties for this Environment This topic describes the controls found in the Directional Light and Shadows window. So you need to be careful as you set the light's direction. The sun would cast much darker shadows in real life. Creating a Soft Window Light for Food Photography. The method computes a so calledReflective Shadow Map nearby the camera. It too is directional, but it's almost always filtered in one way or another and thus is diffused. The Sphere light settings are:. - Massive full screen soft-shadows filtering for all lights (possibility to blend between contact shadows and soft-shadows = nVIDIA Hybrid Frustum Tracing Shadows) - Lastly volumetric lighting for all light types A fully featured HDR renderer that works with MSAA and any standard compatible Unity shader/frameworks out of the box (like NGSS). In this tutorial you will learn: Hard light comes from a single, direct source. It gives a visual representation as to the extend of the light. It will work if we have a moon but not when we need diffused lighting without strong shadows coming from a directional light source which is what would happen if "Directional Light" was used. Find a Store Near You. Lighting in 3D is modeled after real-world physical lighting which is different from creating lighting effects in 2D applications. In brief hard light is light that produces very harsh contrast, where the transition of light from highlight to shadow is sudden and severe leaving a very clear and prominent line between the highlights and shadows. Soft light is more of a term that describes the size of a light source rather than a placement itself. Casting shadows. This helps bring out texture and gives areas of shadow, without the shadow areas being overly large or dark. Cast Static Shadows. Add light source radius to point and spot lights to enable accurate soft shadows V-Ray and UE4): shadow from a sun/directional light should be crisp at the. Soft Light. UE4 has a built in method to provide a world effecting fill light, we refer to it as a Sky Light. Now I turned on area shadows and the light no longer treats them as having opacity maps - I just get the whole rectangular plane shadow on the buildings. Cabela's CLUB. I'm getting similar shadow issues in 3. Return value. 15 for the directional light. Maya Renderer "Production Quality" Raytraced Shadow. The result was way too dark at that point so I complemented the sun with some directional lights with bounce cards outside each window in order to further brighten the scene. Soft Shadows []. A schematic of how light noise occurs in Arnold can be found here. Directional light = shadows = shape. A Spread Angle of 2 would produce reasonably soft shadows whereas a value of 10 to 15 would produce very soft shadows like you would expect on an overcast day. Intuitively, directional lights shouldn't really have shadows. 15 for the directional light. Used Koola-style Bounce Card 52. When in doubt, choose the darker option. This concept was introduced by Lance Williams in 1978, in a paper entitled "Casting curved shadows on curved surfaces. The Sphere light settings are:. Quick tip #1: Lightmass settings in UE4 July 12, 2016 May 15, 2018 Ruslan Nazirov Unreal Engine 4 If you want to improve your baking result for static lighting, you can use lightmass settings from this quick tip. 5 (weren't there in 3. Spot Lights and Point Lights are both point-source lights. You’ll see a variety of form shadows and cast shadows as the light moves, making it easier to identify the shadows when it’s time to draw. I also added a postprocess volume and whenever I enable diffuse tracing. A glass lamp shade produces a glow over the lamp with brighter light below it, while a lamp shade that has a wide opening at the pinnacle brightens the location above your bedside table and reduces shadows. A glass lamp shade sends out a glow across the lamp with brighter light below it, while a lamp shade that has a wide opening towards the top brightens the vicinity above your bedside table and reduces shadows. Multiple light sources. It does not matter where a directional light is located relative to the objects being lit. Directional – By default, the light from the Plane or Disc light is spread out equally in all directions on the side in which the light points. The sun would cast much darker shadows in real life. You can even extend Ogre's lighting and shadow systems by writing your own vertex and fragment programs. A directional shade, perfect to read lights, narrows the sunlight to a specific area. Go behind-the-scenes of a live natural light shoot with artist Sue Bryce to bounce light, bend light, soften light, and create drama with intense light. Soft light is a fantastic resource for any filmmaker. Clamped within 0. Directional Light Source Angle. diffused light lanterns lamps decorative diffused light diffused light is caused by. Every great cinematographer has a deep understanding of the way light works. A secondary rearview option places the camera near the center brake light atop the rear cab for easier kingpin hitching, and the load can be checked in motion (the standard camera image display moves to the inside mirror). Directional lights are unique because they project a series of parallel light rays. Directional Light Settings For performance reasons, Light Propagation Volumes only use Directional Lights as incoming light. Softness (how soft is the edge of the circle) Shadows; Hemispheric (“Hemi”) Hemispheric light simulates the effect of an overcast sky with light bouncing on the ground. When in doubt, choose the darker option. Complete UE4 Lighting Workflow for Arch. Light Types ⦿ Directional light (sun) - use orthographic projection ⦿ Spot light - use perspective projection ⦿ Point light - like spot light, but requires an omnidirectional shadow map. This is a preview demo of Cine Designer RTX running on an Nvidia 2080ti into an Atomos Ninja V @ 1080p30. For example, the Sun subtends approximately 0. The author explains how to create soft shadows for point lights and area lights, which are quite straight forward to understand, but he doesn't explain directional lights, which is what the Sponza scene uses. This applies to everything from individual body parts to huge environments, so it has a big impact on scene appearance. We created a spotlight, a directional light, and a point light. LIGHT SOURCES Ambient Directional Point Spot Area Volume. Directional Light Settings For performance reasons, Light Propagation Volumes only use Directional Lights as incoming light. ) Existing light then is that type of light found in the home, in the office, in the hangar bay, in the chapel, in the club, in the sports arenas, and so on. Soft shadows in the real world blur the further away the light source is from the shadow-caster. vray soft shadows Hi, I would like to ask the forum if it is possiple to blur vrayshadows on a directional light(in max), or is this only possiple with aera light. radius > 0, alpha = 0, beta = 0: A directional light with parallel beams. Soft light leaves blurry-edged shadows. On the web, shadows are depicted by manipulating the y-axis only. A soft light appears to wrap around your subject with a smooth transition from light to shadow, producing soft shadows. ‘the lighting is soft and non-directional, meaning there are no harsh shadows’. However, the (movable) actors in my level cast a very sharp shadow. The rays of a soft light are less parallel to the illuminated object than the rays of a hard light, illuminating an object from multiple directions, so a soft shadow or no shadow at all results. Thus, their location does not matter - translating a Distant Light will not affect your scene’s lighting. 17: Dragon Model Illuminated by Disk Area Lights. And it's the shadows that create a. Accueil Directional lights effect all the objects in the scene Soft shadows are often more. The result was way too dark at that point so I complemented the sun with some directional lights with bounce cards outside each window in order to further brighten the scene. My light was using cascaded shadow maps. Notice how the shadows blend in with the highlights as the softbox size increases and that’s soft light in action. In each shot the distance from light to the model was 1 meter and the light was metered at f/8. Remove Sun Disk. Since this tutorial is based on tutorial 47 which dealt with shadows of directional lights the projection matrix will be orthographic. Very much like a shadow map, it involves rendering objects from the perspective of a light and then projecting the shadows from that light onto the scene. 15 for the directional light. Shadow for these light type could be easily cached or baked to limted size texture. UE4 support shadow caching only for point, spot lights. The light is perpendicular to the subject, which creates a split lighting scenario. In these cases, the shadows are sharper near the casting the object and get softer as they move away. This is also true for all real light sources, in particular the sun and any light bulb or lamp. Note: The Lighting Effects filter works only on 8-bit RGB images in. You can generally tell how soft/hard a light is based on the shadows it creates. Efficient Shadow Volume Rendering. A secondary rearview option places the camera near the center brake light atop the rear cab for easier kingpin hitching, and the load can be checked in motion (the standard camera image display moves to the inside mirror). Guys,I have a new scene I set up in ue4 with movable directional light and movable skylight. A glass lamp shade sends out a glow on top of the lamp with brighter light below it, while a lamp shade using a wide opening at the summit brightens the vicinity above your bedside table and reduces shadows. This concludes the tutorial about lighting in Unity 5. Arx Fatalis Remastered Using UnrealEngine 4,DirectX12 and Nvidia Ray Tracing Arx Fatalis is a role-playing video game for the Xbox and Microsoft Windows, released on 12 November 2002 by Arkane Studios, a video game developer based in Lyon, France. When you’re using flash and you aim the flash into a white umbrella, for example, you are diffusing the light and softening it. If it was me I would just use a directional light instead of a point light, I guess if you want to fly around the sun then one could use 6 directional or a point light with no fall off. Render with keylight and shadows. These soft shadows are a scan-line renderer shortcut for actual area light shadows that render longer. A glass lamp shade sends out a glow higher than the lamp with brighter light below it, while a lamp shade having a wide opening at the pinnacle brightens the location above your bedside table and reduces shadows. Elinchrom fresnel spots satisfy many professional needs for sophisticated directional lighting in portrait and commercial photography. 6 on Maya 2016 for my renderings. 1 x Lambency flash diffuser. Spot Light placed in window Static Spot Light Source Radius 200 50. Clamped within 0. It diffuses bright light and spreads it evenly over subjects. Set the point light Baking setting to Baked and the Shadow Type to Soft Shadows. Tsukiko’s private apartment was no slouch compared to the rest. The bronze character on the left is standing in the light of a static light, it does not affect him in any way (lighting or shadows) while the one on the right is in the light of a stationary light. I also added a postprocess volume and whenever I enable diffuse tracing. Light Radius - 0. In a nutshell, adjusting the light radius will give you your soft shadows. Move it 20 ft away and it becomes a small, hard light. When going back to stationary the shadows will not reappear until lighting is rebuilt. What is Hard Light, Soft Light and Diffused Light? It’s easier to explain with a simple drawing: Hard light leaves hard-edged shadows – they are well defined with a clear border. The shadows of clouds can be applied to your directional light object using the M_LightFunction in the Content/TrueSky directory of your project. The Diffuse map is applied to the mesh with no lighting (like an Emissive map), and the light map is then multiplied against it, darkening the diffuse where the light map has shadows. A new light frustum is built that has a viewing ray perpendicular to the light's direction (parallel to the shadow map). TransitionScale: Allows to scale the cascaded shadow map transition region. Little or no visible shadows: Depending on ambient lighting, shadows may be reduced or not appear to be present in weak light and atmospheric conditions. This scene mainly uses the directional light as the key light for the scene. MaxCascades: The maximum number of cascades with which to render dynamic directional light shadows. Support multiple shadowed directional lights. Shadow Systems® MR918 Elite Semi-Auto Pistol. As this parameter is increased toward a value 0f 1. A directional shade, perfect to read lights, narrows the sunlight to a specific area. UE4 tutorial: Realistic baked lighting for videogames Alen Loeb. Soft light makes shadows that are barely visible. I also added a postprocess volume and whenever I enable diffuse tracing. A directional shade, perfect to read by lights, narrows the sunlight to a specific area. However, the (movable) actors in my level cast a very sharp shadow. This can often happen when doing outdoor environments where a single directional light is meant to represent the sun. Blend over lash line to completely blend shadow and create a smokey. This is a much beter, and dramaticaly faster, way of having truely omni-directional soft shadows. It is softer and does not cast harsh shadows. Return value. (2) The effect of using a much larger disk: not only have the penumbrae become much larger, to the point of nearly eliminating the fully in-shadow areas, but notice how areas like the neck of. Directional - By default, the light from the Plane or Disc light is spread out equally in all directions on the side in which the light points. Ambient occlusion is a shading technique which produces soft shadows based on objects' proximity to each other. Ray Trace Distance Field Shadow半影受到灯光面积大小影响。Point Light或者 Spot Light的面积以及Directional Light的 Light Source Angle. If the light is coming from a low angle, you may find your shadow encroaching on the image. 5) DIrectional Light can be placed anywhere in the scene. (1) The disk’s radius is relatively small; the shadow has soft penumbrae, but otherwise the image looks similar to the one with a point light. This helps bring out texture and gives areas of shadow, without the shadow areas being overly large or dark. A directional shade, perfect to read by lights, narrows the lighting to a specific area. You can even extend Ogre's lighting and shadow systems by writing your own vertex and fragment programs. Stripboxes create a soft, narrow and directional light with hard shadow edges. When you’re using flash and you aim the flash into a white umbrella, for example, you are diffusing the light and softening it. As for the lighting setup it's not really anything special. 즉 이 라이트로 인해 드리워지는 모든 그림자는 평행이 되며, 태양광 시뮬레이션에 이상적입니다. Override Light Colors with Fog Inscattering Colors. These features are supported by V-Ray for Unreal. Spot lights are more efficient at casting depth map shadows because by default they use the Use only Single Dmap option. Lighting is the manipulation of light & shadows You are not just capturing images, you are creating pictures that tell a story! These pictures will tell a story more effectively if they are carefully lit. 1 x Lambency flash diffuser. Fading Shadows Ourselves. Every great cinematographer has a deep understanding of the way light works. The area light works much like the photographer’s soft box diffuser functions in the real world: It allows for a volume of illumination to be emitted from a large surface, filling a space with diffuse lighting. Cloud Shadows. Comes from a very small light source located at a specific coordinate in the model space. Above example uses a 1:1 fill ratio in order to improve visibility of fill shadows. Shadow Distance: This is the maximum distance from the camera at which shadows will be visible. The lighting is frontal and. Go behind-the-scenes of a live natural light shoot with artist Sue Bryce to bounce light, bend light, soften light, and create drama with intense light. Soft "Directional Light" Shadows. In a moon lighting situation, it is what we want. Before we can talk about how to achieve and use diffused light, we must first understand the difference between hard and soft light. 1 x Lambency flash diffuser. Medium light can also be direct, forward light that gives us some soft shadow detail under the nose and chin, also exemplified by the short drop shadow on the wall. This shape makes them perfect for rim or hair lighting in a portrait or a background light for separation. The outline of a shadow is called the penumbra. The sun isn’t directly overhead, and instead it falls at an angle to your subject, casting shadows off to the sides. Use original Soft White from GE when you need a light without glare and harsh shadows. (2) The effect of using a much larger disk: not only have the penumbrae become much larger, to the point of nearly eliminating the fully in-shadow areas, but notice how areas like the neck of. Shadow Rays - 1. ☞2600K soft white light appearance ☞580 lumens providing comfortable, inviting™ light BR40 indoor floodlight with medium base for use in directional fixtures such as recessed can lighting ☞ GE soft white indoor spotlights provide warm, pleasing everyday light without harsh glares and shadows. Be stand intensely nice Refinery 24 x 24 Porcelain Field Tile in Shadow by PIXL. 22: Soft area shadowing for Directional, Point, Spot, and Rect light types; Accurate reflections for objects in and outside of the camera frustum; Soft ambient occlusion to ground objects in the scene; Physically correct refraction and reflection results for translucent surfaces. When you use a flash, on or off camera, you are using a relatively small, hard, directional light source. Before we can talk about how to achieve and use diffused light, we must first understand the difference between hard and soft light. "H d" d "S ft" Sh d"Hard" and "Soft" Shadows D d th t f li htDepends on the type of light sources Point or Directional ("Hard Shadows", umbra) point directional area Area ("Soft Shadows",umbra, penumbra), more difficult problemmore difficult problem. Directional Light (디렉셔널 라이트)는 무한히 먼 거리에 있는 광원에서 오는 빛을 흉내내는 것입니다. It is softer and does not cast harsh shadows. It simulates a realistic soft lighting distribution and realistic shadows that very from hard to soft. MaxCascades: The maximum number of cascades with which to render dynamic directional light shadows. Types of light sources. Cast Static Shadows. As this parameter is increased toward a value 0f 1. Non-zero values produce realistic soft shadows. MaxCascades: The maximum number of cascades with which to render dynamic directional light shadows. If I use a huge softbox and I move the light right in front of her, it opens up her face beautifully and casts nice shadows on her face. UE4 support shadow caching only for point, spot lights. Quick tip #1: Lightmass settings in UE4 July 12, 2016 May 15, 2018 Ruslan Nazirov Unreal Engine 4 If you want to improve your baking result for static lighting, you can use lightmass settings from this quick tip. Multiple light sources. This helps bring out texture and gives areas of shadow, without the shadow areas being overly large or dark. Soft Shadows vs Hard Shadows. Produces less shadows or softer shadows. The bronze character on the left is standing in the light of a static light, it does not affect him in any way (lighting or shadows) while the one on the right is in the light of a stationary light. value of either 0 or 1 by the light intensity, indicating in shadow or not in shadow, respectively. This directional light creates saturated colors and preserves details without creating blown-out highlights. In a fantasized vision of the 17th century, the player embodies Adalia de Volador, an impetuous swordswoman who must fight with panache to defend her family's honor. But by messing around with the parameter "light radius", mental ray/maya produces softer looking shadows. We understand how to use hard light, when to use soft light, and get excited by directional light. The lighting is frontal and. With these elements in place you should have a similar scene that you can use for testing. In these cases, the shadows are sharper near the casting the object and get softer as they move away. The best ways to light a face When taking a portrait of a model, lighting the face correctly can make or break the shot. i dont know if i missed something but it looks like theres nothing more in the documentation. While they previously could only be achieved through an offline renderer, iClone 7 destroys that barrier by allowing you to use glow maps, particles, dynamic images and video as light sources… all in real-time!. Depending on the editor from which you set these options, you may see a subset or all of the following attributes: Type Click the arrow to choose a light type from the drop-down list. You can adjust. Work with culling spheres. Types of light sources. The best example is the shadow from sunlight in a clear sky. In Android and iOS development, shadows occur when light sources are blocked by Material surfaces at various positions along the z-axis. That’s because a mic that’s too light can resemble a scar or blemish, while a mic that’s slightly darker than the background resembles a shadow and draws less attention. Quality of light refers to the color, and hardness or softness, of light. I can set the quality but not the amount / size. ⦿ Shadow mapping is expensive; usually only one light. The cast shadows do soften, however the terminator shadow line on objects stays hard. Directional lights are unique because they project a series of parallel light rays. When going back to stationary the shadows will not reappear until lighting is rebuilt. It produces shadows and sharp lines. It is softer and does not cast harsh shadows. vray soft shadows Hi, I would like to ask the forum if it is possiple to blur vrayshadows on a directional light(in max), or is this only possiple with aera light. We are familiar with these different forms of light through our everyday experience with daylight – direct. For example, if you compare Figures 3. The rich contrast created by shadows often adds to the mood of an image and helps to highlight important components within the scene. The 2D visibility/lighting effect can be very flexible, and with the right creative touch, can add a lot of extra oomph* to your game. The QuickTime movie shown below consists of a 60 frame animation of an occlusion light source, inclined at an angle of 60 degrees, rotating 360 degrees around the Y-axis. Shadow for these light type could be easily cached or baked to limted size texture. Because we are using a "Directional Light" it will cast shadows. Create six light frustums and render to a cube map inside the geometry shader. The directionalLight command is used to edit the parameters of existing directionalLights, or to create new ones. Emit Photons • Directional Light • Point Light • Spot Light Emit No Photons • Sky Light 48. But I have shadows issue, as mentioned in some posts above; I opened your project (HDRI_Setup level), added a simple asset, rebuild lighting (Production)… but NO SHADOWS. A setting of 1 or 2 will produce slightly softened shadows like hazy sunshine, larger numbers such as six will be much softer. They are superior to baked shadows in that they allow for shadowing of dynamic objects, such as trees. Soft shadow from movable object with stationary lights. We use a point light source with a user-defined radius to generate the soft shadows accurately. En Garde! is a swashbuckling action game prototype made with UE4. - then modified AutoLight for the soft shadow (basically changed all returns to 1, until founded which one it is, then added shadow "blur" there) - *** Seems that you only need the AutoLight. opengl,textures,glsl,shadow,plane. !! Although there were a directional light in the level May be you should post a statement about this issue … Best Regards. Directional light = shadows = shape. Here’s how to properly use a shoot-through umbrella light for your YouTube videos: Characteristics of. Most people agree that there are 4 major shadow rendering techniques in computer graphics at the moment: (1) stencil shadow volume, as will be used by Doom 3 (2) shadow buffers, as used by Splinter Cell in its GF3/4Ti/FX "version" (3) shadow projectors (projected textures), as used by the Radeon cards in Splinter Cell. UE4 Mobile Performance - Specify one directional light as stationary (the Sun) - All other lights are static - High-quality distance field shadows. Guys,I have a new scene I set up in ue4 with movable directional light and movable skylight. HBAO+ is a screen-space ambient occlusion ( SSAO ) algorithm providing high efficiency on DX11 GPUs. Render Time - 00:22. What this tutorial will focus on is the generation of dynamic shadows in all surrounding directions. Shadow for these light type could be easily cached or baked to limted size texture. The Shadow rays attribute controls the sampling of the shadows (kind of like the dmap filter). 5 degrees as seen from the surface of the Earth. Using 'Rotate' tool play around with the angle of the light and do test renders. In some cases it too will cast a shadow, but the shadow will be less defined, soft and unobtrusive. These bulbs' funnel shape and reflective. Now my light doesn’t see that other side of her face. Doing this will expose a variable called Baked Shadow Radius. Ready to pounce on an unwary space marine, the alien predator clings to a wall, concealed in the shadow of a nearby gun turret. Real time shadows have long since been a tough topic to deal with in research and games. Directional Light Source Angle. A softbox will diffuse harsh lighting and eliminate shadows from your portrait shots. You can even extend Ogre's lighting and shadow systems by writing your own vertex and fragment programs. What this tutorial will focus on is the generation of dynamic shadows in all surrounding directions. directional like hard light, but nondirectional. Diffused lighting is commonly found in fashion and commercial photography. DSLR Window Light Semi-Silhouette Settings. Softening shadow edges is the default in PlayCanvas but you can change this setting if you wish to achieve hard edged shadows. This allows for soft area shadows with sharp contacts! Here’s a directional light with ray traced soft shadows. While portraiture benefits from diffused ("soft") light, which doesn't create unpleasant sharp shadows on the face, other genres demand harder light. By tracking the closest distance a ray passed by an occluder, we can compute an approx cone intersection with no extra cost. This decreases the harshness of shadows and highlights in a scene, which generally renders surfaces in a more pleasing manner. LET THERE BE LIGHT * totally a real technical term. Controls the graininess of soft shadow edges. This is like a normal shadow map (2d texture of opaque depth from light perspective) but with additional material properties (material color, normal. The light is emitted from everywhere in the specified direction, and has an infinite range. Shadows Shadows occur where objects are hidden from a light source • Omit any intensity contribution from hidden light sources • Umbra and penumbra (function of size of light source) • Soft shadows and hard shadows (point light source at a distance) • Important perceptual clue for connecting objects to ground (feet in particular). Since directional lights don't have a decay attribute, it doesn't matter where you place the light in the scene. The video is worth a full watch, it contains tons of interesting practical tips and explains many of the Lightmass features of Unreal Engine 4. Soft shadows also tend to reduce the "blocky" aliasing effect from the shadow map. A directional shade, perfect to read lights, narrows the sunlight to a specific area. Non-zero values produce realistic soft shadows. UE4 support shadow caching only for point, spot lights. Luxury and beauty. So the light is already fairly soft. You need to know the difference between hard light and soft light. The shadow and angle_falloff parameters are ignored, the values shadow = 0, angle_falloff = 0 are supposed. Softboxes are made to take a light source, bounce its light all around the interior of the box and to shoot the light through the front diffusion panel without any light spill through the sides or back of it. Soft, or diffuse, light is less directional. Directional light = shadows = shape. Remove Sun Disk. UE4 Mobile Performance - Specify one directional light as stationary (the Sun) - All other lights are static - High-quality distance field shadows. You can't do the same with just a directional light in UE 4, you need to use skylights too. They have soft shadows on from some planes I have placed in the sky near them which have a texture which is a cloud opacity map, so the effect is casting cloudy shadows on them.