Recent questions tagged 3d

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3d - Plotting 3-D Matrix *values* in MATLAB

I have a 3D Matrix M(256x256x136) and each index(i,j,k) in M has a gray level value in it. I am ... for plotting points, not the values. Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3d - unity3d trouble with ship floating on water

In unity, i have a ship And i have also water: I want to make ship float on water, but(of course) what I ... run game, what I got instead is: See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3d - Rotating CSS cube on fixed axes

I have a cube constructed using CSS. It's made of 6 faces and each face is transformed to form one face of the cube, ... "></div> </div> </div> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3d - Wireframe rendering in WPF

I have to write a wireframe 3D renderer in a big WPF app that does many things But WPF has no native ... this reliably? Thanks in advance. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3d - How to plot (x,y,z) points showing their density

My data file is a set of (x,y,z) points located around the axis origin. They represent points where a kind ... how to achieve it with Gnuplot. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3d - What's a quaternion rotation?

Is quaternion rotation just a vector with X,Y,Z which the object will rotate towards, and a roll which turns the ... right, Y up and Z depth) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3d - What's a quaternion rotation?

Is quaternion rotation just a vector with X,Y,Z which the object will rotate towards, and a roll which turns the ... right, Y up and Z depth) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3d - Neighbor Polygons from List of Polygon Indices

I have a mesh in a form like this. with a list of indices representing each polygon at the end. I need to ... ). Thanks for any help! :) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3d - Intersection of line segment with axis-aligned box in C#

I'm looking for an algorithm that determines the near and far intersection points between a line segment and an ... /short would be preferred. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3d - Visualizing a toroidal surface in Matlab

I have a problem which is twofold: How do I plot a toroidal surface in MATLAB, given a major radius R and ... appear smaller here, please do =) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3d geometry: how to interpolate a matrix

i store the position of an object in 3d space in a 4by4 transformation matrix. now in order to move ... special care about something? thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3d - Three.JS rotate projection so that the y axis becomes the z-axis

Traditionally, in 3D projections, the Y-axis is the axis that represents "up and down". I learned to think of it, ... a diagram of what I want: See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3d - How to apply a transformation matrix?

I am trying to get the 2D screen coordinates of a point in 3D space, i.e. I know the location of the ... help with this is greatly appreciated! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3d - Convention of faces in OpenGL cubemapping

What is the convention OpenGL follows for cubemaps? I followed this convention (found on a website) and used the ... | neg y | |________| See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3d - How do I reproduce this heart-shaped mesh in MATLAB?

I want to plot a heart shape wireframe as shown in the following image (source): I have tried to make it by ... . How can I solve the problem? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3d - In OpenGL is there a way to get a list of all uniforms & attribs used by a shader program?

I'd like to get a list of all the uniforms & attribs used by a shader program object. ... enum is GL_ACTIVE_UNIFORMS & GL_ACTIVE_ATTRIBUTES. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3d - ThreeJS geometry flipping

I am facing a problem with geometry flipping, I tried flipping using the negative scale technique but it fails. ... use Blender to achieve this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3d - controlling FPS limit in OpenGL application

I am trying to find a solid method for being able to set exactly how many FPS I want my OpenGL application ... to limit fps to desired amount? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3d - How to read/parse individual transform style values in JavaScript?

Webkit's blog post from last year on 3D transforms explains the various transform 'functions' that can be used in ... () string, and how? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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660 views

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3d - Working of CCD algorithm for Inverse Kinematics

Lets say I've a robotic arm with joints at points A,B,C,D in a 3D space. Let D be the end effector( ... doing wrong and how can I fix it? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3d - Qt Transform matrix

I need to manipulate QML items through QMatrix4x4, in order to apply some perspective transformations. Basically, I ... Thanks for the help. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3d Cube Animation in Android

I want 3d cube transition change view or activity in android. I am searching google lot of ways but, ... transition between views or activities? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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531 views

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3d - which data structure is appropriate to query "all points within distance d from point p"

I have a 3D pointcloud and I'd like to efficiently query all points within distance d from an arbitrary point ... the boundingbox of all points See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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499 views

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3d - calculating distance between a point and a rectangular box (nearest point)

is there a easy formula to calculate this? i've been working on some math but i can only find a way ... there some resources on this problem? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3d - procedurally generate a sphere mesh

i am looking for an algorithm ( in pseudo code) that generates the 3d coordinates of a sphere mesh ... lateral slices should be configurable See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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645 views

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3d - Circular rotation around an arbitrary axis

I am programming Starcraft 2 custom maps and got some proglems with math in 3D. Currently I am trying to create ... 3D stuff in the future). See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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406 views

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3d - Opengl problem with texture in model from obj

I writing small program in OpenGL, and I have problem ( textures are skew, and I dont know why, this model ... update, 0); glutMainLoop(); } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3d - OpenGL GL_SELECT or manual collision detection?

As seen in the image I draw set of contours (polygons) as GL_LINE_STRIP. Now I want to select curve(polygon) ... the ray is inside each polygon. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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