38
questions
-1
votes
0
answers
11
views
Bypass zero123 with own multiview images to enhance texture of InstantMesh 3d reconstruction output
I'm using InstantMesh, which is a 3d reconstruction pipeline that uses a multiview model (zero123) that generates multiview images from one input image.
My team and I are trying to enhance instantmesh ...
0
votes
0
answers
48
views
Convering a 32 bit data into 8 bit data for 3D textures
I am trying to save a 3D DXGI_FORMAT_R8G8B8A8_UNORM Texture to a file, then load that texture back afterwards. This is working for my 3D DXGI_FORMAT_R32G32B32A32_FLOAT texture, and this saves and ...
- 1
0
votes
1
answer
432
views
WebGL2 3D Texture Image coming upside-down, how to flip the output?
Originally I was working with 2D Textures and everything was fine because we are allowed to use UNPACK_FLIP_Y_WEBGL. However, in WebGL2 we are now able to utilize 3D Textures. The problem is that my ...
- 385
1
vote
1
answer
538
views
3D texture array data format three.js
I'm exploring using 3d textures for video playback in three.js.
Three.js has a good example of this – https://threejs.org/examples/webgl2_rendertarget_texture2darray.html,
but the data format isn't ...
- 318
-1
votes
1
answer
15k
views
Blender Show Solid Color Instead of Texture
I'm very new to Blender (I use Blender 2.8.3). I give my objects some texture but I don't know why the texture won't show up both in the viewport and when I render it.. How ever, the other texture () ...
- 49
1
vote
1
answer
417
views
Is iOS metal 3d texture sample method trilinear?
I am using a color lookup table to create a 3d texture, and use input color to find output color. but I found output color has some interrupt layer. Is this sampler sample 3d texture by using ...
- 875
1
vote
1
answer
669
views
How to keep coordination between particles and which texture pixel contains each one’s information?
Using a 4x4x4 grid as an example, I have 64 vertices (which I’ll call particles) which start with specific positions relative to each other. These 64 particles will move in the x, y and z directions, ...
- 57
0
votes
1
answer
405
views
How to render individual pixels for one layer of a 3DTexture in a framebuffer?
I have a 4x4x4 3DTexture which I am initializing and showing correctly to color my 4x4x4 grid of vertices (see attached red grid with one white pixel - 0,0,0).
However when I render the 4 layers in a ...
- 57
2
votes
1
answer
1k
views
iOS Metal API draw 3d texture inside the volume
So, I'm trying to render a cube with 3d texture. Texture contains 3 slices of 3 diferent colors, red green and blue. Each slice consists of 4 pixels with the same color. Works fine. https://i.sstatic....
- 51
2
votes
0
answers
804
views
How does the coordinate system work for 3D textures in OpenGL?
I am attempting to write and read from a 3D texture, but it seems my mapping is wrong. I have used RenderDoc to check the textures and they look OK.
A random layer of this volumetric texture looks ...
- 9,282
2
votes
2
answers
3k
views
Using Sampler3D to read from a 3D texture in OpenGL ES 3.x
I am using OpenGL ES 3.2 to read from a 3D texture in the fragment shader and write that value out to an FBO. I then read from the FBO attachment using glReadPixels, and print out the values obtained.
...
-1
votes
2
answers
1k
views
Working with GL_TEXTURE_3D
I'm trying to read a file representing values to be mapped to colors when rendering a volume. I.e., each voxel has its color represented in the input file. Here it follows a dummy test file:
4 4 4
1 ...
- 9,784
0
votes
0
answers
400
views
Fragment shader for 3D-Textures
I want to use a fragment shader to write back into a 3D-Sampler: There is an array of images as input (as uniform sampler3D) to my opengl-es-application and i want to perform some per-pixel operations ...
- 714
2
votes
1
answer
552
views
webgl 3D texture from 2D image, working but with rendering issue
I am trying to use the 3D textures in WebGL, but since it's not currently nativelly supported, I have to use to tricks with a 2D image. It is composed of 64 images, each are 64px by 64px (for a total ...
- 121
1
vote
1
answer
454
views
OpenGL mixes colors for GL_TEXTURE_3D in compute shader
I am not sure whether it is a driver bug but following happens:
compute-shader.glsl:
#version 320 es
precision mediump float;
layout(local_size_x = 16, local_size_y = 8, local_size_z = 1) in;
...
- 1,228