Questions tagged [uv-mapping]
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56 questions
0 votes
1 answer
107 views
Transforming UVs from rectangular to azimuthal spherical projection
I'm trying to figure out a general way to project a rectangular texture into a spherical one centered on the azimuth (UN flag style). As a reference, I have been able to achieve this effect exactly ...
1 vote
1 answer
201 views
Vertices are mapped to UV coordinates, but how does the shader access the UV data?
So in every mesh, the vertices can have UVs, and UVs are a way to store data for each vertex. Basically, at the time of rendering, when the shader runs, it's a way to check some arbitrary data for ...
- 141
0 votes
1 answer
396 views
Creating a UV Map for a 3D Cone
I have the following problem I am currently facing. I am creating the vertices for a cone based on the number of segments and the radius of the base and top. This is done as follows: ...
- 167
0 votes
0 answers
80 views
Why is my texture stretched from 1 row of pixels? Metal/Swift
I have the following code below, and it generates the following render. I am using a texture test image, and it looks like its just taking the bottom row of pixels of that image and repeating then. It ...
- 101
2 votes
1 answer
144 views
Does automatic UV unwrapping work with an indexed face set model?
When working with Graphics APIs like OpenGL its common to use an index face set model. That is, multiple faces share adjacent / overlapping vertices by using a list of indices. Most game engines like ...
- 164
0 votes
1 answer
2k views
Calculating UV coordinates for sampling texture atlas
I have an 8192x8192 texture atlas that contains 1024x1024 shadow maps aligned side by side. I'm trying to calculate the uv coordinates so that I can sample each shadow map appropriately based on the '...
- 115
0 votes
0 answers
56 views
Character Creation. Cartoon look, Eyes and Extra Parts. What advantages are the combining to one mesh?
I am fairly new to CG and 3d art. I'm trying to learn to make good game assets (ie. Low poly count, clean looking) in a cartoon style. I'm making this character as pictured. But his eye is a separate ...
- 111
2 votes
3 answers
758 views
How to paint onto 3d models
I have searched this topic for very long time and have found basically no information on it. If we have a 3d model with a uv layout. What is the basic technique for 3d painting on said model with a ...
- 526