a computer program that runs on graphics hardware and provides a high degree of control over how scenes are rendered
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27 views
GPU Gems Chapter 1, update normal
Had plans to follow GPU Gems to gain knowledge in Shaders - but my journey came to an abrupt end.
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0answers
16 views
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0answers
17 views
Unity Shaderlab: Pixel Perfect Distortion Shader that uses screen position?
So I am trying to make a distortion effect vertex-fragment shader! I am pretty new to shaders in general, and I am having some trouble with it.
The effect is: from a distortion texture, I get a ...
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1answer
58 views
HLSL float bitfield
In HLSL I want to store a bitfield for each color in a texture. Specifically spanning 3 floats (RGB, not alpha).
Since each float has to be between 0 and 1 I can only use the significand/mantissa of ...
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0answers
18 views
How to QUICKLY make material from images in Unity?
Ok for these years Ive made materials from exported texture images by 1. importing the images 2. make a material 3. Manually drag each image into its slot in the material
There must be a faster ...
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0answers
37 views
2D Lighting Shader Multiple Lights
For a 2D platformer, I have a 2D lighting shader with two passes, the first one draws a shadow from the closest light to the sprite and the rest of the lights will reduce the visibility of the shadow ...
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0answers
23 views
Using a light mask overlay without lighting the sky
I'm using an overlay to create a lighting effect in a 2D game.
The overlay is a grey-scale mesh and I multiply each pixel of the mesh with the pixel already written to the framebuffer.
This works ...
2
votes
1answer
63 views
How to implement a pixelated screen transition shader?
I am interested in creating a screen transition seen in a lot of retro games. The transition is just a kind of pixelated distortion that increases or decreases in granularity over time.
The effect is ...
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0answers
46 views
Weird behaviour of glsl with fragment, vertex and geometry shaders
I am a beginner in developing games. I started some time ago with OpenGL and the glsl language. These days I am having so many problems and for me it is too difficult to solve, because the shaders are ...
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2answers
217 views
2D Blizzard/Snowstorm Effect
How can I implement a blizzard/snowstorm effect in a 2D platformer? I have a particle system for snow particles, but I need some kind of windblown texture similar to this as well: How do I create this ...
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1answer
74 views
How can I write a dots effect shader when the character is behind an object?
I watched an interesting effect while I was playing Super Mario Odyssey: when Mario or another character was behind an obstacle (walls, etc), a tiny gray silhouette mesh appears.
I tried to build ...
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votes
1answer
25 views
Using multiple textures in Monogame HLSL Effect shader?
My Monogame HLSL shaders only successfully sample one texture (besides the screen). Any additional textures I try to sample end up with the same texture data as the screen.
I've found people with ...
1
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0answers
16 views
Transparency problem / Expanding material fixes it magically?
i stumbled upon a problem, can't figure out what's the reason and how to solve it.
I have glass-windows which use just the standard (specular setup) shader.
in the first place when the model is added ...
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1answer
32 views
GLSL Shader compiles, but source is empty
I'm trying to compile a GLSL shader, to which I use the following code.
Initialization
...
2
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3answers
251 views
Are there technical reasons to use short variable names in shader code?
I have been reading and writing both GLSL and CG for the past few years, and have noticed a trend. In programming, we are generally advised to be as meaningful and concise as possible with variable ...
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votes
1answer
42 views
GLSL - Efficient Point inside Box Check
I'm attempting to improve the performance of a shader that changes the colour of a region of the world that is inside a "zone".
I am using a deferred lighting system, so the colour and world-space ...
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1answer
31 views
Unity - Adding a sphere volume to this shader
I'm trying to create a spherical effect around my player that when they walk into range of hidden object, it gradually renders the object.
I found a shader that would work pretty well for this. When ...
6
votes
1answer
242 views
How can I implement a revealing light beam?
In SEARCHLIGHT, you control a ray of light that illuminates incoming enemies that are otherwise invisible in the night sky. Here is an illustration:
How would I go about doing this, preferably in ...
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0answers
26 views
How can I add recieve shadow to my transparent shader
I need a shader with these features
recieve shadows
transparency (changing alpha for fading)
Cutoff (alphatest cutoff)
this is my shader:
...
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1answer
60 views
Moving/spilling water inside a cup of glass
I made a glass of water but there are somethings i didnt know how to do well, what i did is i put a mesh on the top of the glass to represent the surface of the water but it doesnt really work well ...
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1answer
81 views
Make a glass cup look like it's full of water
I've been struggling to figure out a way to make a glass cup full of water, and since the cup is made of glass a plane on the top of the glasse won't really do it, so how can i go around making the ...
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1answer
23 views
Unity Manual Instance Example Shader contains errors
The Unity Manual has a page on GPU instancing. One of the examples, titled "Adding instancing to vertex and fragment Shaders", causes the following errors to printed to the console when saved in a ...
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1answer
61 views
OpenGL Deferred Shading Pixelation
I'm working on a 3-pass deferred lighting system for a voxel game, however I am having problems with pixelated lighting and ambient occlusion.
The first stage renders the color, position and normal ...
1
vote
1answer
39 views
How to implement multicolored flashing sprite effect like in Contra and the Messenger?
I want to implement an effect similar to what you see in this clip of Contra.
When the boss takes damage, he flashes wildly with different colors.
A similar effect can be seen in this clip from the ...
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0answers
40 views
How can I blend meshes together where they intersect?
In a lot of my scenes I have things like this:
and this:
All the places I've circled are places where a prefab overlaps with another one or with the terrain.
Is there any way to make those lines ...
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0answers
10 views
Use Shader Graph break all materials?
I want use ShaderGraph in my game for first time. I installed pipeline and when I turn it on all materials turn pink "broken"!! What can I do to solve this ?
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0answers
63 views
How to play a material's shader in an image? (Unity 5.2.0f3)
I would like to obtain the same effect as in Seasons After Fall in Unity 5.2.0f3 for a 2D project:
https://i.stack.imgur.com/WCIhs.gif
Here the trailer, https://www.youtube.com/watch?v=cmAWybFKNh8
...
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1answer
43 views
why my shader is black in the game mode?
I used this useful blending modes It's good but it just work in Editor mode.
what is the problem?!
...
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1answer
39 views
How can I color single triangles with a color palette?
My primary goal is to have a lowpoly rendering style, so that each triangle has its own homogeneous color on all its fragments, meaning color is not interpolated between vertex.
I have my indices ...
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2answers
32 views
2D Camera Movement Temporal Reprojection
Having an Orthographic Camera with its View Projection Matrix given from the current and last frame, how to reproject the previous frame to the new one?
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votes
1answer
34 views
How can I ensure my Direct3D 11 shader scripts are not visible to the user?
Right now for my engine, I rely on pixel and vertex shader script text files that I load and compile when I need them.
What I am wondering is, how can I store the shader scripts so that they are not ...
1
vote
1answer
44 views
Rain Effect generation in a Unity VR project
I´m developing a VR project in Unity Engine and I need to implement a Rain Effect. I have considered the following:
A VR game must run at least 90 frames per second.
The Rain must be detailed.
The ...
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votes
2answers
81 views
Unity 3d texture animated round circular bar
I'm struggling to create a circular bar with an animated texture and a round cap end. What I would like to create is implemented in the Unity game Subnautica - the bottom left bar. So here is the HUD ...
1
vote
1answer
32 views
Why does my terrain texture fail to load? (OpenGL)
I'm currently using a vertex shader and a fragment shader for loading my texture onto the terrain I made.
Here is my vertex shader
...
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0answers
23 views
Unity C# - Apply a Shader to LineRenderer based on local coordinates of the LineRenderer
first of all: I'm a Unity Beginner, so i'm very sorry, if i'm asking a stupid or simple question.
That being said here is my problem:
I'm using Unity's LineRenderer to simulate waveform lines and ...
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0answers
17 views
What's the easiest way to apply a partially transparent shader to a section of an object at runtime in Unity3D?
In many games, projectiles leave a mark when they collide with objects. For simple cases, this is easy to implement simply by instantiating a partially transparent decal a small distance away from the ...
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votes
1answer
39 views
Glow effect shader for mesh generated at runtime
I'm using the leap motion-paint module and i would like the ribbons that are generated at runtime to have a glow effect, I tried editing the existing shader by adding a glow property but the colors ...
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0answers
56 views
Water cut off effect in UE4
Working on a side scroller game in Unreal Engine 4 and I need to create a water cut off effect like seen in the screenshot of Ori and the Blind forest.
Basically need a side perspective on water ...
1
vote
1answer
55 views
Low fps on Arm Mali GPU
I was trying to google and understand my problem in two weeks but i am defeated, so i am asking for help.
The main problem is that my custom unlit frag shader after certain amount of time on devices ...
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0answers
29 views
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0answers
26 views
UNITY_UV_STARTS_AT_TOP seems not work on iPhoneX in Unity
I followed this blog's method to do an optimized projector in Unity, it's working fine on iPhone6/7/8. However, on iPhoneX its render texture inverses in y axis. So I followed this to fix it but it's ...
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0answers
17 views
Cascading Shadow Maps - Spotlight Projection
In all the cascading shadow map explanations I have read, the final projection into the shadow-map is done using an orthographic projection.
This makes sense for a directional light because a ...
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votes
0answers
6 views
iOS support for DepthTextureMode.DepthNormals mode
Does iOS support DepthTextureMode.DepthNormals mode in Unity?
I have a shader for edge detection that uses DepthTextureMode.DepthNormals and it works fine on desktop but when I run it on iOS i dont ...
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votes
1answer
58 views
Why does Unity heavily blur edges of a single cube despite 8x antialisaing
I was messing around a random project and everything was working perfectly, when all of a sudden jagged edges appeared on all objects. I've been trying to resolve this issue for the past two dails, ...
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0answers
29 views
Unity image effect - how to reduce or fix aliasing
I followed this tutorial Link
to create a camera depth based gradient fog image effect. The author on the site warned about possible weird aliasing and I'm wondering what could be done to improve the ...
0
votes
1answer
53 views
How can I write an additive mesh shader that splits the RGB channels while accounting for depth?
I'm trying to create a sort of "hologram" effect. So far, what I have is an additive, three-pass shader that uses ColorMask for each pass to separate the RGB channels. The problem is that doing so ...
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0answers
15 views
UnityObjectToClipPos - returns -1 -1 clipping coordinates for 0,0 position
I've got a question regarding UnityObjectToClipPos
Let's suppose I have Camera at 0,0,0 position and some point at 0,0,3. As this point is on the central axis of camera I expected that xy clip ...
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votes
1answer
48 views
Unity run-time creating material has performance impact?
Just found creating a material in a script for the first time would have performance impact.
(Using Unity 5.6.5f)
A very simple script for testing is to create a game object with MeshRenderer in ...
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2answers
44 views
What's the difference between length function and distance function in Unity Shader?
I'm confused about the two functions, do they return the same thing?
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1answer
19 views
using a wire-frame shader on a plane how can i also fill in the squares with a solid color so that each square's color can be changed?
I'm not sure if using a shader is the best way for what I'm trying to achieve, but I would like to apply a color to each of the squares like in the picture and have the ability to change each color ...
