20
votes
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16
votes
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How can I use GLSL shaders within Mathematica?
As it turns out, it is entirely possible in 14.0 to write your own custom shaders as this video by Yuzhu Lu demonstrates.
In addition, a number of custom shaders are available to read in:
Mathematica\...
- 25.9k
14
votes
Smoother jelly / water effect on an image
This method seems to work quite well. Instead of changing the positions randomly, I rotate each vertex around in a small circle centered at each original vertex position. Every vertex starts at a ...
- 25.9k
12
votes
Mapping a numerical array of numbers onto the surface of f(x,y) possible?
Via MeshShading and Texture:
...
- 245k
9
votes
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How to understand VertexTextureCoordinates in Texture?
This happens because texturing is done triangle by triangle. Polygons with more sides are broken down into triangles, and each triangle is textured individually. I believe your example is ...
- 236k
9
votes
Accepted
Degradation of image when used as texture in 3D graphics
m_goldberg's solution jogged my memory and the problem is even a pitfall:
Use Rasterize[..., "Image"] to avoid double rasterization
Note that ...
- 273k
9
votes
Degradation of image when used as texture in 3D graphics
Don't rasterize. I think Texture is doing its own rasterization, so you are seeing the results of a double rasterization.
...
- 108k
9
votes
How to understand VertexTextureCoordinates in Texture?
Note first : it is recommended to read this answer after the two other ones (from Szabolcs and matheorem)
Here is a tool intended to explore how ...
- 19k
9
votes
can't blend gradient colors with a stream
The color is not quite right but the idea seems to work. Edit: much closer now.
...
- 273k
9
votes
Accepted
Circle Packing in Cone Texture
I found two ways to do this. Here only post one of them since the other one need more time to modify. I will post the other one before Christmas Eve.
All of this use the isometry between cone and ...
- 84.1k
9
votes
Project geomap onto band of sphere
The key point is we need to unitization the spherical coordinate. {φ/(2 π), -θ/π}
To illustrate the method,we change some parametric here: use ...
- 84.1k
9
votes
Filling region with a pattern
To fill the region under a curve, you need a curve that spans the x-PlotRange. E.g.:
...
- 56.4k
8
votes
Circle Packing in Cone Texture
Sorry for too late to modify the another code. The idea is draw some circle or semicircle in the sector using polar coordinate.
...
- 84.1k
8
votes
Accepted
8
votes
2D and 3D graphics that project a world map on Icosahedron
Slightly changed last example from docs on GeoProjection. There are a few issues, for instance textures have different resolution. If I figure things out I'lll update the answer. But I thought this is ...
- 73.4k
8
votes
Accepted
How to make swatch legend match the chart's texture?
Update: In versions 12.1+ you can use the new directive PatternFilling
...
- 401k
8
votes
can't blend gradient colors with a stream
You can use StreamDensityPlot (which accepts the ColorFunction option) to produce the texture:
...
- 401k
8
votes
How to understand VertexTextureCoordinates in Texture?
the number of coordinates in VertexTextureCoordinates should be the same as the number of vertex in polygon.
As an example
...
- 17.4k
8
votes
Accepted
How to make Texture unblurred?
Rahul is correct in his comment. To map a texture to an object, you use VertexTextureCoordinates to specify where the texture is glued to the object. The problem is,...
- 113k
8
votes
Accepted
Filling a 2D plot with a texture
I would use ParametricPlot[] for this:
...
8
votes
Accepted
How to import and render this OBJ file with correct texture?
You could manually import it and construct Graphics3D:
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- 15.3k
7
votes
Accepted
Texture prevents JoinedCurve from closing
The bug had been fixed. Here we attach the result.
$Version
(* 12.2.0 for Linux x86 (64-bit) (December 9, 2020) *)
Row[triangle /@ {True, False}]
- 84.1k
7
votes
Accepted
How to hollow out this surface?
Using ColorReplace[] to inject transparency into a texture is very useful for this sort of thing:
...
7
votes
Accepted
Adding texture to `Tube[]`
We can use new-in-12.1 directives (HalfToneShading,ToonShading, GoochShading, ...
- 401k
7
votes
Accepted
7
votes
7
votes
Accepted
7
votes
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Texture not mapping correctly over square root sheet
We set the PlotRange and the Background to Black in order to full fill the graphics region.
...
- 84.1k
7
votes
6
votes
Filling a 2D plot with a texture
Try using a region plot (I used an example texture but you could but any image in there):
...
- 2,412
Only top scored, non community-wiki answers of a minimum length are eligible