Questions tagged [3dtexture]
The 3dtexture tag has no usage guidance.
23
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How to transform face mesh?
We can use ARcore to create custom textures and 3D models for Augmented Faces, like the augmentation of a Fox ears. But aside from augmenting 3D objects, can we "transform" facemesh, for ...
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How do I view my vertex colors that I specified through the texture I've applied on my objec [OpenGL]?
I thought that if I used an image with a transparent background, I would still be able to see the colors I had specified in my vertex attribute buffer.
...
CommunityBot
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What technology was used in the creation of Ancient Earth in dinosaurpictures.org website?
I've been watching this Ancient Earth globe for sometime and got mesmerized by it. It ticked my imagination enough that I wonder what technology was used in the creation of this beautiful Ancient ...
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Programmatically generating bin files for GLTF models
I have a need to generate a series of GLB files. I have a base template for a GLTF file which I have to derive off of. The models thus generated will only have varying textures on them. The base mesh ...
4
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1
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Why does UV tiling affect performance in volumetric ray marching?
I am building a volumetric ray marching shader in HLSL in Unreal Engine, based on Ryan Brucks’ work: https://shaderbits.com/blog/creating-volumetric-ray-marcher
I am trying to add some additional ...
- 24.7k
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UV coordinates calculation broken
I've tried using the classic formula of calculating barycentric coordinates.
When the plane on which you are projecting the texture is collinear to any of the base vectors it crashes with a division ...
2
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1
answer
1k
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How are obj files textured?
I am a new learner in 3d graphics. So forgive me if I seem to ask something very basic. I am confused how obj files are textured. So far I have seen:
obj + jpg
obj + mtl + jpg
When I look online, ...
- 145
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36
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2
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Wondering if it's possible to 'extend' a texture beyond the mesh without altering the mesh itself
I'm in Blender and working with a pre-existing 3D model- I want to add more length to it, but I don't want to mess with the mesh- Is it possible to extend the texture beyond the mesh without changing ...
- 24.7k
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254
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How 3D painting software works
I am new to graphics programming and i'm learning opengl. I managed to make a really simple renderer where i can import models display theirs textures with all lighting. My goal is to make a simple ...
- 1,233
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184
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2D array texture with different filtering setting per texture?
Currently I have textures which need GL_NEAREST and some other need GL_LINEAR in the same texture2dArray. In the shader I perform a manual GL_NEAREST lookup via textureFetch().
To avoid this my ...
- 9,697
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541
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Binary scene voxelization using imageStore - problem
This problem has been haunting me for some time but I was busy with other things. I can't finish my GI technique (specifically occlusion step) without solving it.
I made a binary scene voxelization ...
- 2,109
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524
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Inverse texture mapping
I have a textured 3D object and looking for ways to transform back the texture. Effectively, I think this is an inverse texture mapping task. Do you know of anything close to this? Some papers or ...
- 101
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Manually fetching 8 neighboring texels from 3D texture greatly decreases performance
I'm implementing manual interpolation between texels in a 3D texture to be able to discard some of them when needed. Compared to hardware interpolation, this process takes a lot of time. If I simply ...
CommunityBot
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94
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Handling varying texture sizes in an array texture
Say we've idetified that we have a varying number of textures that are upper capped by 2 parametrs. thus we allocate the maximum amount of memory needed to store all textures as follows:
...
- 1,696
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269
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How to assign a texture to a single entry of a texture array?
The C++ psuedo code to transmit the idea of what I want to do would be:
Texture_array tarr = Texture_array(6);
tarr[0] = texture;
Which I am attempting to do as ...
- 1,696
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How do you load multiple textures into an array texture with OpenGL?
I have been reading the OpenGL documentation but it is not clear to me how to achieve the following.
Say we have an array of strings. Each string in the array is a valid relative path to an image ...
CommunityBot
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How to automatically project texture from high poly mesh to low poly mesh?
I have two aligned meshes: I have exact mapping from each vertex of low poly mesh to surface of a high poly mesh. High poly (~100K vertices) mesh is non-manifold, low poly (~1K vertices) is manifold ...
- 161
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407
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Volumetric integration in Frostbite
In their presentation at SIGGRAPH 2015 Electronic Arts presented method of volumetric rendering using 3D texture aligned with view frustum.
This technique needs two steps:
Injection of color and ...
- 24.7k
3
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2
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455
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Frustum aligned volume integration - aliasing issue - temporal reprojection
Raw volume raymarching especially aligned with frustum seem to produce a lot of aliasing/banding on edges of shadow map. Especially when fragment pos is far because step length is then getting bigger. ...
- 2,109
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111
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How to texturize a 3D model from video?
I have a base 3D mesh of an object that I want to texturize. I also have a 360 degrees video of the real-world object.
What are good ways to use the video to texturize the mesh? Are there existing ...
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562
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Can we use anisotropic filtering on 3D textures?
Do modern GPUs support anisotropic filtering for 3D textures? If yes, how can one use it? The OpenGL spec doesn't seem to be very precise on this. From this link:
...
- 1,950
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465
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How many 3D textures does OpenGL support
I'm making a voxel engine in OpenGL and wondering how many 3D textures I can have at once. They are fairly large (256x256x256 in GL_R32UI format). I want it to be able to run on any graphics card ...
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