Recent questions tagged glsl

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glsl - Variable array index not possible in webgl shaders?

As the title says, I can't do vector_array[foo] (assuming foo is in-range and integer) in webgl vertex shaders ... way to mimick a lookup table? See Question&Answers more detail:os...

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

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glsl - Curved Frosted Glass Shader?

Well making something transparent isn't that difficult, but i need that transparency to be different based on an ... help would be 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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glsl - OpenGl blurring

I'm using libgdx and want to make a common Gaussian blur post-processing effect. Following this guide I faced some ... * sum; } The full class See Question&Answers more detail:os...

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

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glsl - What kind of blurs can be implemented in pixel shaders?

Gaussian, box, radial, directional, motion blur, zoom blur, etc. I read that Gaussian blur can be broken ... be implemented in pixel shaders? See Question&Answers more detail:os...

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

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glsl - What kind of blurs can be implemented in pixel shaders?

Gaussian, box, radial, directional, motion blur, zoom blur, etc. I read that Gaussian blur can be broken ... be implemented in pixel shaders? See Question&Answers more detail:os...

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

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glsl - OpenGL : thick and smooth/non-broken lines *in 3D*

I have a 3D CAD-like application for which I use OpenGL wrapper library (OpenSceneGraph). For the application I ... result is achieved, here. See Question&Answers more detail:os...

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

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glsl - OpenGL : thick and smooth/non-broken lines *in 3D*

I have a 3D CAD-like application for which I use OpenGL wrapper library (OpenSceneGraph). For the application I ... result is achieved, here. See Question&Answers more detail:os...

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

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585 views

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glsl - Clipping-planes in OpenGL ES 2.0

I need to clip a few hundred objects under a clipping plane in OpenGL ES 2.0 and would appreciate ideas from ... clipping in OpenGL ES 2.0? See Question&Answers more detail:os...

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

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glsl - What's the best way to draw a fullscreen quad in OpenGL 3.2?

I'm doing ray casting in the fragment shader. I can think of a couple ways to draw a fullscreen quad for ... immediate mode to draw a point. See Question&Answers more detail:os...

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

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glsl - Explanation of dFdx

I am trying to understand the dFdx() and dFdy() functions in GLSL. I understand the following: The derivative is ... 1.0 and 1.0 respectively? See Question&Answers more detail:os...

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

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453 views

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glsl - Issue Understanding Lighting in OpenGL

I am having some problems understanding how lighting works in OpenGL (especially understanding the pre-defined ... stop the interpolation ? See Question&Answers more detail:os...

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

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587 views

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glsl vector plus scalar

I searched a lot but could not find if the following statements are legal in a #version 330 vertex shader ... the compilation was unsuccessful. See Question&Answers more detail:os...

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

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431 views

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glsl - Why does my OpenGL Phong shader behave like a flat shader?

I've been learning OpenGL for the past couple of weeks and I've run into some trouble implementing a Phong shader. ... worked "out of the box." See Question&Answers more detail:os...

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

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542 views

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glsl - How do you get the modelview and projection matrices in OpenGL?

I am trying to use the OpenGL Shading Language (GLSL) version 1.5 to make vertex and geometry shaders. I ... compile it with that function). See Question&Answers more detail:os...

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

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glsl - WebGL - is there an alternative to embedding shaders in HTML?

The popular way of using GLSL shaders in WebGL seems to be to embed them in the main html file. The vertex ... in case anyone finds it useful. See Question&Answers more detail:os...

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

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440 views

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glsl - glLineStipple deprecated in OpenGL 3.1

glLineStipple has been deprecated in the latest OpenGL APIs. What is it replaced with? If not replaced, how can ... profile of course...) See Question&Answers more detail:os...

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

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