Questions tagged [shadows]

Dark spaces cast by the presence of a solid object blocking the flow of light. Often helpful for telling where your character is going to land.

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0 answers
70 views

Terrain detail grass not receiving shadow

The grass painted onto my terrain is in the shadow area of the house wall, but they're not receiving shadows. Why does this happen?
0 votes
1 answer
593 views

Changing Ambient Light settings in Environment window does not affect scene after baking LightMap

My settings: Unity version - Unity 2021.1.12f1 Lightmap Lighting Mode - Bake indirect Render Path - URP I want to change Ambient Light in Environment window while I have baked LightMap. Is it possible?...
1 vote
2 answers
454 views

Particles not rendering over projectors

I am using projectors for shadows...When I use particles for bike speed up i.e., nitro speed the particles get cutout by those shadows.... Here is screenshot of it, Here is my shader code of ...
0 votes
1 answer
261 views

How does planar shadow projection interact with perspective projection?

This question is about planar shadows as explained in Frank Luna's DX11 book. The author presents the 4x4 shadow matrix, whose bottom right element is n\$\cdot\$L (where n is the plane's normal and L ...
0 votes
2 answers
2k views

How to get nicer shadows from distant point lights?

I get too unsatisfying results for shadows when using a point light that is far away. (The quality settings are maxed.) The scene: The result: The light: What can I do to get better shadows?
0 votes
0 answers
196 views

Ursina not applying shader and light to entity

I'm making a terrain-based game in Ursina. I finished making the terrain and the texture, and all of them run well, but Ursina is having problems with the lights and the shaders. ...
0 votes
0 answers
35 views

Shadow squares on meshes

I had created project on r3f (React THREE Fiber), and after "blocking" when I decided to add high resolution models, I noticed this shadow issue. Help me to understand, how can I fix the ...
1 vote
0 answers
67 views

How to transform correctly shadow cascades?

I think I got the main idea of shadow cascades but I have misunderstanding of transforming shadow cascades using matrices for getting correct a result. I understand it this so Define shadow cascade ...
0 votes
1 answer
75 views

Issues with implementing shadow mapping produces weird results

This is my first attempt in implementing shadow mapping. I am using right hand coordinate system and my projection matrices are producing z values from 0 to 1. I've decided first to use orthogonal ...
3 votes
0 answers
83 views

Smooth self shadow on dense foliage

I don't know how to achieve or research smooth lighting on foliage, like in this screenshot of theHunter: Call of the Wild. The grass is translucent, but blocks light smoothly when it's tall and ...
2 votes
1 answer
325 views

Making Unity shadows work at a small scale

I'm trying to cast shadows from a small (3cm) sphere onto a table surface. If I place a large object, I get shadows as expected, but below a certain size, I get nothing. I appreciate that under ...
0 votes
1 answer
354 views

How can I remove dither effect on player's shadow?

I am trying to make a dithering effect on the player so that when the camera comes below or very close to the player he will be dotted or transparent like in Genshin Impact. So, I followed a tutorial ...
0 votes
1 answer
81 views

How can spotlights be implemented with a perspective projection?

I was reading Shadow Mapping with Directional Lights and noted that spotlights are implemented by rendering with the perspective projection, stating that the spotlight worked just like the camera. ...
0 votes
0 answers
138 views

How to stop light from seeping through meshes?

I'm trying to make a giant minecraft world but light keeps seeping through everything, as every block is paper-thin. Is there a way to increase its thickness? Notice the edges of the meshes. Light is ...
0 votes
1 answer
663 views

Shadow Shimmering When Moving Objects

I am having a shadow shimmering in my scene when using a shadow mapping technique. I know that there is a lot of posts over the internet dealing with this subject but my issue is slightly different. ...
-1 votes
2 answers
464 views

GL ARB Shadow Ambient Extension is not supported

I'm trying to build a game engine with LWJGL under Java. I'm want to implement Shadowmapping, but I'm stuck with the tutorials from Oskar Veehoek (here, specifcally). When I try to use the shadow ...
1 vote
1 answer
3k views

LWRP Custom Shader Graph material casts no shadow

I created an empty Shader Graph by clicking Create -> Shaders -> PBR Graph. I created the material for this shader and assigned it to my game object, but the object does not cast a shadow. If I ...
0 votes
0 answers
189 views

Gaps in shadows even with zero bias set Unity

I have a problem with gaps in shadows in Unity. I know that there are many questions about that, but all of the answers are usually about setting bias property to 0. But this didn't help me. I use ...
1 vote
1 answer
177 views

2D shadow from polar coordinates has hard cut-off at a certain radius

I'm trying to cast shadows from a 1D texture that goes from white to back according to the distance given by an occlusion map. That part I think I got it right. The problem lies on the algorithm to ...
0 votes
0 answers
195 views

Per pixel shadows with depth / displacement map

I am looking to draw 2D sprites that cast artificial 3D shadows onto a flat terrain using an additional depth-texture when rendering the sprites. A black/white depth texture is used to add a height-...
0 votes
0 answers
140 views

What's the solution to this kind of shadow acne?

I'm working with a OpenGL ES/GLSL homebrew engine my company developed, in C++. Below is a screenshot of it rendering shadow acne. The light's direction is too perpendicular to the face of the curve ...
3 votes
3 answers
3k views

Technique for multiple shadow casting lights in 2D

I'm trying to create shadows in a 2D game in such a way that I can have an arbitrary number of lights in a scene, all of which can cast shadows. To do this I think I have to generate a mesh for each ...
0 votes
1 answer
486 views

Unity - jagged shadows when export as apk?

Alright, I found this question with the same problem but it's out of date Jagged shadows with default settings My problem is a discrepancy between shadow quality settings in editor vs apk built to ...
0 votes
0 answers
36 views

How to calculate if a complex shadow matches a Texture?

Unreal 4.27, newbie and experimenting, will switch to 5 if supporting features are not available in 4. I have a light on the left side of the room pointed toward the right side. In the middle of the ...
0 votes
0 answers
146 views

Thin gaps in shadows of FBX models imported into Unity

I recently have started making my game in Unity and making models to go alongside it. However, I export my models as an FBX and am able to successfully get them into the game, but unfortunately it ...
0 votes
1 answer
1k views

How to make a shadow-casting day/night system in 2D URP?

I am trying to achieve a day/night lighting system similar to the game RimWorld. Short preview of what I want can be seen here: https://giphy.com/gifs/VgzcwtjueP7BrYSrXe Instead of using Global Light ...
0 votes
1 answer
163 views

LWJGL Stencil shadow problem

I've a problem with shadow (Stencil). So when i draw the shadow they looks good, but when the object to draw is underground his shadow is wrongly rendered. My game is do with LWJGL/GL11. Normal ...
0 votes
1 answer
191 views

How not to multiply real time and bake shadows? (Unity)

I have one Light Source ( Directional Light ) with Mixed Mode. Lighting Mode in Lighting Window I seted to Subtractive. What the problem looks like How I would like the shadows to blend. How to ...
0 votes
2 answers
201 views

The colors of Unity 2019 are different

I currently use Unity 2018 LTS, because of my 2019 Unity colours are not really good. For example, the white is not really white but more like grey and the Shadows are really strong too even if I ...
3 votes
1 answer
463 views

Matrix math in cascade shadow mapping

I am implementing cascade shadow mapping algorithm and currently stuck with matrix transformations - my AABBs, when projected in light space are pointing in the direction opposite to the light: I was ...
1 vote
1 answer
702 views

Deriving shadow position from a 2D heightmap

I have a 2D heightmap with discrete values. Based on these values they should cast a fixed position shadow (constant angle respective to the "sun"). I can figure out how to cast it on a flat ...
0 votes
1 answer
311 views

Cascaded Shadow Maps - Handling shadows that cast into different cascades

For example I have 3 shadow cascades. A shadow is cast by a hill in my 2nd cascade, but the shadow itself is cast into not only the 2nd cascade but also the 1st. In the shader program, in order to ...
2 votes
1 answer
1k views

Depth texture white in shader

I am trying to implement shadow mapping into my project and am stuck at this problem: If I'm reading the shadow map values with glReadPixels and linearize those ...
0 votes
1 answer
796 views

Unity 3d when camera is closer the shadows getting clipped weirdly

When in distance the shadows are appearing correctly but when getting near to the shadows it is getting clipped in a weird way. I was not able to fix it. Any help would be appreciated.
0 votes
1 answer
729 views

How to calculate the shadow bounding box with a directional light

I'm trying to implement a directional light in my C++ / OpenGL engine, but I struggle to calculate the shadow bounding box (i.e the shadow frustum). The bounding box has to encompass the main frustum ...
0 votes
0 answers
155 views

Shadows issue in Unity

I am using Unity Built-in render pipeline 2020.3.5 I have a weird shadow projection when pointing at game objects with my flashlight (spotlight). It looks like the shadow is floating or is another ...
1 vote
0 answers
30 views

Perspective of a Point Light

I'm trying to calculate shadows by projecting the silhouette of each object seen by the light source. (The shadows are just going to go on planes.) To get each silhouette I take a snapshot from the ...
0 votes
0 answers
105 views

Unity Light Bug

I saw this while testing my game. I have a light situated behind the Main Camera. All is working perfect, until I get a Game Over, and changes to the Game Over scene. From then, all lights have no ...
0 votes
0 answers
87 views

Issues with percentage closer filtering

I'm trying to code a simple game via OpenGL C++. I've implemented a point light, parallax effect with textures, objects from blender etc. but I seem to have an issue with my percentage closer ...
0 votes
1 answer
1k views

How to get light level (brightness) of a particular location?

I'm making a 2D top-down survival game similar to Rimworld, I'm trying to emulate a day-night system. Many features depend on whether any tile is light (or dark) ...
3 votes
2 answers
7k views

Why are there no dynamic shadows in UE4?

So my problem is that other than for static objects which have baked shadows from building lighting, there are no shadows for movable objects, like those cubes. Neither from the Light source actor, ...
0 votes
0 answers
1k views

How to make a point light cast shadows in realtime?

I have a solar system... The central star has a point light attached to it. However, objects don't cast shadows on each other... Planets are < 20 units from the star, so it's not a light falloff ...
0 votes
1 answer
147 views

Stride: Can't see shadows in programmatically created scene

As a learning exercise I'm trying to recreate the 'new game' scene with the sphere on a plane. Mostly working but two issues: Shadows are not working. Skybox light (reflected on the sphere) is not ...
46 votes
1 answer
13k views

Why is shadow mapping the standard?

Though I am a programmer by trade, I have barely touched game development at all. I've had this question for some time, and now that I'm looking into game development I thought it would be a good time ...
0 votes
1 answer
655 views

Generated Mesh Does Not Have Shadows/Shading

Description I'm trying to create a water shader, and at this point in development I'm using a Photoshop-generated cloud texture as a map for vertex displacement. The displacement itself works just ...
0 votes
0 answers
1k views

How do you make lights affect 2D sprites in a 3D environment using Unity's URP render pipeline?

I'm using Unity, URP and have 2d sprites characters in a 3D environment. I want 2D sprites to be affected by lights/shadows like the rest of the environment. -I know if I use a 2D renderer I can use ...
0 votes
1 answer
609 views

How can I fix the artifacts near the shadow edges in my variance shadow map?

I'm trying to implement variance shadow mapping in my engine. I'm using WebGL 2 and now I have only one directional light source. It's working, but it has a serious issue near the shadow edges and I ...
0 votes
0 answers
50 views

Strange lighting bug in my game

I've been experiencing this lighting bug in my game. As you can see there is a box around the player on the back wall and underneath it. the platform and back wall are 3D objects and the player is a ...
2 votes
1 answer
148 views

How to make shadows softer as distance increases?

I'm trying to make shadows become more blurry as the distance between the caster and receiver, so they look a little more realistic. What method can I use to achieve this?
0 votes
0 answers
48 views

SMR shadow fade by script?

I want to make fade for my player shadow. I don't know if it's possible or not. In my skinned mesh render there is "Cast shadows" with four options "Off, On, Two sides, and Shadows Only". How to do it ...

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