Questions tagged [texture-mapping]

Texture mapping is a method for adding detail, surface texture (a bitmap or raster image), or color to a computer-generated graphic or 3D model.

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How to use OpenGL LOD in Texturing?

How do GL_TEXTURE_MIN_LOD, GL_TEXTURE_MAX_LOD and LOD_BIAS work? To check it visually, i have created 6*6 texture with mipmapping and for values > 0.5 for MIN_LOD I get a 3*3 texture irrespective of values for MAX_LOD. If I change LOD_BIAS it does…
debonair
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UV/Texture Mapping in Python

I have on quick question. I want to know if it is possible to perform UV/Texture mapping within python. I know I would probably need to import a module or two. But I haven't too many examples of how to perform UV/texture mapping in python. If it…
user1750948
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Procedural / Dynamic colouring of a skybox in OpenGL

I have been developing an application that needs to render a procedural sky, what I mean by this is that the sky has a day night cycle that changes depending on what time it is within the simulation. I have seen a method somewhere in the past where…
xyz
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Opengl Geometry shader integer texture fetch fails

I'm trying to sample an integer texture from my geometry shader running on a GeForce 330m. It seems to return other values than I load into the texture. I use this code (basically) for creating and loading the texture: glGenTextures( 1, &textureId…
dascandy
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Mapping a texture to a mayavi mesh

I'm using mayavi in python to visualize some data. I have a surface in 3D space and I want to map an image to it. I have looked at mayavi documentation and all I could find was this, which really doesn't help me much. Has anybody done something like…
katrasnikj
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How to map a photo onto 3D surface in PHP?

I'm working on product customization webapp and I ran into problem how to map user uploaded images or texts onto complex 3D surfaces in my website back-end. It is easy to apply simple skew and there are libraries for that I looking for something…
ainla
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GL_TEXTURE_2D_ARRAY in OpenGL ES/WebGL?

I have an application in mind that would greatly benefit from the use of array textures. However, I have not been able to determine whether array textures are available in the current WebGL specification and/or in OpenGL ES 2.0, on which WebGL is…
drxzcl
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GLSL passing texture coordinates from vertex shader

What I'm trying to accomplish: Drawing the depth map of my scene on top of my scene (so that objects closer are darker, and further away are lighter) Problem: I don't seem to understand how to pass the right texture coordinates from my vertex shader…
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JavaFX 3d Sphere - texture mapping saving proportions?

I am trying to have a JavaFX 3D Sphere, textured with a texture of the earth. The texture is this one (from Wikipedia, an equirectangular projection): The sphere is rendered as follows: You can clearly see that, at the poles, the texture is not…
Dario
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Painting difuse texture in javafx?

Is there a way to paint a 3d texture on a 3d surface like blender ?
Giovanni Contreras
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Qt 3D: How to draw a cube with different textures on each face?

I'm new to Qt 3D (C++), and while I'm training with my first 3D app, I couldn't achieve the following: Creating a cube with 6 different textures on each face... Until now, this is what I've tried: // Cuboid shape data Qt3DExtras::QCuboidMesh…
Osama
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OpenGL texture format, create image/texture data for OpenGL

Ok so I need to create my own texture/image data and then display it onto a quad in OpenGL. I have the quad working and I can display a TGA file onto it with my own texture loader and it maps to the quad perfectly. But how do I create my own…
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How do Google Maps do their panoramas?

How do Google Maps do their panoramas in Street View? Yeah, I know its Flash, but how do they skew bitmaps with Correct Texture Mapping? Are they doing it on the pixel-level like most Flash 3D engines?, or just applying some tricky transformation to…
Robin Rodricks
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How to project a 2D image as a surface in a 3D scatter plot (in R)?

I'm working with 3 dimensional coordinates data, which i'm plotting in a scatterplot, i have ~30.000 datapoints, and i've included the first 10 here so that you can reproduce it library(rgl) library(plot3D) library(car) df <- data.frame(meanX =…
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Switching to glTexImage3D from glTexStorage3D

glBindTexture(GL_TEXTURE_2D_ARRAY, texture_id); glTexStorage3D(GL_TEXTURE_2D_ARRAY, 1, // No mipmaps GL_RGBA8, // Internal format width, height, // width,height 1 …
Maik Klein
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