UV mapping is the 3D modeling process of making a 2D image representation of a 3D model.
Questions tagged [uv-mapping]
286 questions
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How can I specify multiple UV coordinates for same vertexes with VAOs/VBOs?
I am in a situation where I would like to use VAO/VBO to recycle the same vertexes and use indexes to speed up rendering.
All is fine, apart my textured models use UV coordinates and for the very same vertexes (approx >80%) I may end up having…
Emanuele
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Adding a UV-map material in Unity 5 not working
I am currently using Unity 5 to setup a small game so that I can see the assets I recently made in blender in action.
I have created a uv-map in blender and added the necessary colour (it works and displays nicely and blender) but it doesn't seem to…
Amposter
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How to draw and texture a UV Sphere with OpenGL 2.0 for Android
I am creating a virtual reality app for android and I would like to generate a Sphere in openGL for my purposes. In a first step, I found this thread(Draw Sphere - order of vertices) where in the first answer there is a good tutorial of how to…
Jorge S
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Spherical mapping calculation (UV) for point given on sphere - strange U values
I want to write an spherical mapping for my ray-tracer to generate UV-coordinates for the sphere. The texture applied with that mapping should looks like that:
I have the sphere that is located at [0.0f,0.0f,0.0f] with the radius of 20.0f.
For…
PolGraphic
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D3D11/C++ Inaccuracies in uv interpolation in pixel shader. How to avoid?
I'm trying to draw a quad with a texture onto the screen such that texels and pixels perfectly align. Sounds pretty easy. I draw 2 triangles (as TRIANGLE_LIST, so 6 vertices) using these shaders:
struct VSOutput
{
float4 position :…
XorTdsc
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DirectX/C++: Texture Coordinates not "correct" in-engine correctly after Obj export
If I draw a single plane, the texture coordinates are mapped correctly. (4 Verts, 4 TC, 6 Indices(2 polys))
Even if it's subdivided, (9 Verts, 9 TC, 27 Indices(8 polys)) the texture will display:
(Maya complex plane)
I can take my [written] Obj…
Rashid Ellis
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Finding isocurve from triangulation with known uv at all vertices
I have a 3D triangulated mesh which is similar to a curved piece of paper in that it has a 4 edges and lives in 3-dimensional space. Edges may be different lengths and curve differently, but it could theoretically be continually morphed to look like…
PeteUK
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Three.js - changing collada texture works, but not with canvas
I am digging into Three.js and am experimenting with vrml, and now with collada files.
Importing a collada file works. It works with webGL AND canvas as a fallback : my 3D model rotates, shows the model… and in webGL i can even have that wonderful…
dokMixer
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Mapping UV to a bulged triangle strip
I don't know if "bulged" is the correct term for it but it's all I can think of right now. I'm trying to map a 1-pixel wide (though technically every texture would have this problem) image along a triangle strip to simulate a laser. When it's…
Jewel
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How can I create a UV map of my arm?
I want to design a custom sleeve tattoo based on the actual dimensions of my arm. Any suggestions on the best way to go about this?
I am a bit of a 3D noob but my idea was to scan my arm with a kinect, create a mesh, and create a UV map from the…
Justin
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Buggy UV coordinates of sphere in OpenGL?
I am having buggy texture map on my sphere. The issue is well known but solution is rare.
This is my code for generating UVs for a sphere.
T = triangles, Nv = vertex normals.
for (int i=0; i
maxpayne
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How can I turn a UV corrdinate this texture into a single U coordinate?
First off, this is what I'm trying to do:
The blue lines are the texture boundaries, the red line is a "slice" I am putting across the polygon (the slice can be variable).
What I'm trying to do is make a cut across the top of my polygon, and making…
KiraHoneybee
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HTML canvas draw inside UV islands
I am trying to create a texture on fly with many randomised circles and apply it on bowtie object in three js
I am trying to achive it with HTML canvas because I think it will give me more control over the pattern rather than glsl shaders. I am…
Eugene
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How to transfer colors from one UV unfolding to another UV unfolding programmatically?
As seen from the figure, assuming a model has two UV unfolding ways, i.e., UV-1 and UV-1. Then I ask an artist to paint the model based on UV-1 and get the texture map 1. How can I transfer colors from UV-1 to UV-2 programmatically (e.g., python)?…
XiaoJin
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How to export UV map in SVG format in Blender but only outlines
I have this UV map from my 3d object.
Now I want to export it to SVG format but I just need outlines/borders as SVG not all polylines.
Is it possible in Blender to export as SVG just outlines/borders or I need to do some manual work on Adobe…
Aleks Per
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