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Computer Graphics : Recent Questions and Answers (Page 2)

Find answers to your questions about Computer Graphics or help others by answering their Computer Graphics questions.

Reducing artificial rings in mean curvature of mesh

I have an isosurface/mesh (generated via marching cubes) of a micro-CT scan. Originally the surface looks very noisy, which becomes prevalent when the mean curvature is visualized: ...

Asked on 08/27/2021

1 answer

Fast and exact Geodesics on meshes, Backtracking confusion

The following is an excerpt from a 2005 paper on geodesics on triangular meshes, taken from section 3.5 ...

Asked on 08/27/2021

1 answer

How to scale signed distance field fonts properly?

I have a setup where I'm rendering a bunch of characters on a canvas with an SDF font. The users can zoom in to see the details of the smaller...

Asked on 08/27/2021 by Endanke

1 answer

The ploygon width parallel to the x axis as a function of the y ordonate?

Considering a polygon with n vertices as input. I need to calculate the integral of the form[int_A p(y) dA...

Asked on 08/27/2021 by Hafid Boukhoulda

0 answer

Find the formulas of the middle point algorithm for drawing the parabola?

Find the formulas of the middle point algorithm for drawing the parabola ? x^2 = 4*(a+b)*y , a,b > 0. Solve it according to E(East) and NorthEast(NE) ?...

Asked on 08/27/2021 by MrJab

0 answer

Crystal ball rotation - I don't get why the code works

For context: I'm absolutely new to graphics programming and I've always had trouble getting the math. I had the task to write code for a crystal ball interface using OpenGL....

Asked on 08/27/2021 by user13665

0 answer

Draw Line on Arbitrary Surface

I'm working on a 3D modeling tool and we use data from OpenLayers to construct a 3D mesh of some land. I want this behavior: you click on the mesh...

Asked on 08/27/2021 by Valentin Molina

0 answer

How to raytrace Bezier surfaces?

I tried this question on math.SE and surprisingly, the answer was "the equations are too nasty, just feed the function it to a numerical root-finder". But if you consider...

Asked on 08/27/2021 by luser droog

5 answer

Better Shadow Mapping Techniques

Currently I have basic shadow mapping setup in my engine. I am currently trying to implement something more realistic like PCSS (percentage closer soft shadows), to get a more physically...

Asked on 08/27/2021 by Arjan Singh

2 answer

What does GPU assembly look like?

I have played around with CPU assembly programming like Nasm, Tasm or Masm, but I'm really curious to know how GPU works now.However, i'm quite confused when I look...

Asked on 08/27/2021 by sebastien finor

4 answer

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