All Questions
Tagged with shaders graphics-programming
38 questions
2
votes
2
answers
454
views
How do materials and shaders work in graphics programming?
I stumbled upon a few videos about shaders and materials from The Cherno and my understanding is that materials are this sort of input that a shader takes to calculate an output instead of hard coding ...
- 43
0
votes
0
answers
44
views
Efficient Implementation of Dynamic Snake-Like Body in UE5: Seeking Advice on Optimized Approach
Platforms: iOS, Android, and PC.
I want to implement a snake body that can dynamically grow in length, narrow, and bend (simulate body movement, similar to bending in an arc).
I'm using UE5, and ...
1
vote
0
answers
288
views
Use of a Global Shaders in Unreal Engine to apply some pre-processing operations
I'm a little experienced in Unreal Engine, but I don't know the Unreal's graphics programming from a very low level. More in details I would like to know how could use an Unreal's Global Shader to ...
- 61
0
votes
1
answer
193
views
Tessellation shaders not working, no objects drawing on screen
Using this tutorial https://learnopengl.com/Guest-Articles/2021/Tessellation/Tessellation and this tutorial https://www.youtube.com/watch?v=21gfE-zUym8 I implemented tessellation shaders that I haven'...
- 47
0
votes
0
answers
120
views
Gaussian blur only blurs the interior of primitive?
I cannot work out why my blur shader based on this example affects only what's inside the illuminated sphere. Below is the loop I'm using to blur an HDR framebuffer 5 times horizontally and vertically
...
- 11
0
votes
1
answer
283
views
Unity Shader - Moving one texture around and on top of another texture
I have a shader that applies a texture to a sphere with lighting, making it look like a nicely lit planet:
The code for my shader is here:
...
- 103
1
vote
1
answer
922
views
Unity: Alpha and color issues with opaque projector/decal shader
I have been attempting to make a simple "overwrite" version of Unity's projector shader. I can either respect the color, or respect the transparency, but not both.
I have simplified the ...
- 161
1
vote
1
answer
2k
views
How to position/transform vertices for 2D UI in shaders?
I am building a 3D engine and have a rendering abstraction that focuses on writing shaders. Most my 3D shaders have gl_Position output like:
...
- 298
0
votes
0
answers
81
views
Gamma adjustment slider implementation
Various online sources talk in sufficient detail about gamma correction. By following them, I achieved a rendering pipeline that looks somewhat like this:
...
- 113
0
votes
3
answers
345
views
1
vote
1
answer
3k
views
Rendering clouds similar to Sky: Light Awaits?
I'm interested in adding clouds to my game, with a style similar to those in Sky: Light Awaits
You can see them in motion in these videos:
(Starts at 26:00)
https://www.youtube.com/watch?v=ttIo9miMizE
...
1
vote
1
answer
1k
views
Does it make sense to do more calculations in the fragment shader if there are more vertices than pixels?
I'm very new to graphics programming, and as I understand it vertex shaders are called per vertex and fragment shaders are per pixel (ignoring anti-aliasing). When it comes to optimization all sources ...
- 13
0
votes
1
answer
2k
views
What does declaring a const float within a function do? (CGFX)
I've been working with this piece of code to get the mip map level that I should sample for a texture that I got off a forum somewhere. I noticed that they use a const float. Now from what I ...
2
votes
1
answer
2k
views
One Giant Shader VS Many Small Shaders
I am building forward rendering engine combined with atlas shadow map technique.
My goal is to build an engine that is capable of rendering similar scenes from games such as..
Doom
Overwatch
So I ...
- 1,112
0
votes
1
answer
628
views
How shader program still works even after detaching shader object?
In the following process of shader creation, shader object is detached after linking program (glLinkProgram), how does the shader program still works after detaching and deleting shader objects?
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- 189