Questions tagged [displacement-mapping]
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12 questions
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Vertex displacement shader graph shows unexpected creases at the beginning and end of a gradient texture
I'm trying to perform a basic vertex displacement by means of a horizontal gradient:
I'm using an on-the-fly created plane mesh. Most of this process is clear to me. I'm not understanding where the ...
- 121
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How does displacement mapping generalize bump mapping?
This PDF discusses bump mapping, a special case of displacement mapping. A surface is represented as a function \$\overrightarrow{O}\left(u,\,v\right):\:\Bbb R^2\mapsto\Bbb R^3\$. In bump mapping, we ...
- 151
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Calculate position given velocity and acceleration at a given timestep
I am following a Pixar course at Khan Academy and I came across a simulation of a double spring with a given timestep. I understand how it works and why it behaves the way it does, but I want to know ...
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OpenGL Parallax Displacement Mapping Not Working
I am attempting to implement parallax displacement mapping into my OpenGL code but it is not working as it should.
https://i.sstatic.net/oHnhm.jpg
As I move around, double-lines moves around and if ...
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Vertex Displacement Distortion Correction
I am developing for Mobile VR using GoogleVRSDK and Unity. My target platform is Android.
I have a shader which displaces vertices to create a reverse lens distortion.
Following is my shader,
<...
- 121
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2D Distortion shaders for water effect
I'm working on Unity, and I'm trying to improve my water.
The water will be seen top down, and I want to apply a shader to it to make it better looking.
I understand the concept of distortion shaders ...
- 1,585
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Per-pixel displacement mapping GLSL
Im trying to implement a per-pixel displacement shader in GLSL.
I read through several papers and "tutorials" I found and ended up with trying to implement the approach NVIDIA used in their Cascade ...
- 141
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Calculating normals after displacement mapping
I'm using C++, DX11 and tessellation. After tessellating a triangle I apply displacement mapping to the new vertices. But they still have the original triangle's normal so the lighting calculation ...
- 2,334
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Tessellation cracks
i'm trying to a mesh tessellate with dx11 with the tessellation factor calculated by the size of the triangle and the distance to the screen.
I do the same operation on the 3 edges of the triangle, ...
- 121
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What's the difference between displacement mapping and height mapping?
What's the difference between displacement mapping and height mapping and what is the connection to adaptive tessellation?
- 405
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Map displacement transformation to texture space?
I am trying to displace geometry in object space without giving the appearance of texture warping.
My idea is to displace the UV lookup by a relative amount to the geometry displacement.
Any ...
- 111
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rendering rolling hills
I want to render very pretty smooth undulating hills. There are objects snuggled between these hills, so I can't really use naive bump-mapping.
I am currently rendering using a very detailed mesh ...
- 7,017