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Dynamic Sky System
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These are some images from my project I've been working on in the last four months. It is part of my diploma thesis at the Fraunhofer IGD and VICOMTech, and is a dynamic weather system. The redering system used is the open scene graph OpenSG.
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Posted October 29, 2005 10:04:40 PM
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Rain in ATI Toy Shop demo
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Hey!
Have you seen the toy shop demo ?
The rain looks incredible! I've implemented the rain method described by niniane wang but the ati-rain seems to be a mix of texture pertubation and particles. Or what do you think they used?
And ho... |
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Posted October 13, 2005 8:10:13 AM
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per pixel displacement mapping
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Hello all,
I tried to implement the displacement mapping technique described by William Donnelly in chapter 08 in the gpu gems 2.
I want to implement that in glsl so I use rendermonkey for that.
As this chapter can be downloaded for free at... |
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Posted August 31, 2005 10:02:31 AM
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getShaderVersion() ???
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Hey!
This might be a simple one but I cannot find any info about it:
I wonder if there is a similar function in OpenGL like VertexShaderVersion() in DX?
Greets,
Bebud :) |
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Posted September 21, 2005 9:27:58 AM
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atmospheric scattering (again)
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Hi,
I'm trying to implement the scattering terms by hoffman/preetham in Rendermonkey with GLSL. But my output is...well it's just white and has holes!
I have a rendermonkey zip file if someone wants to see it in action...
The following is th... |
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Posted July 27, 2005 6:41:58 AM
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| Some recent replies made on our forums |
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Dynamic Sky System
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hey! thanks :)
Unfortunately, I can not make this open source as it is part of a project at the Fraunhofer IGD. So they will decide at the end of the the project (2007) weather parts of it will go open source or not...
But I definitely would be g... |
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Posted November 10, 2005 5:25:21 AM
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Dynamic Sky System
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Hey meganfox. Well, the "prototype clouds" use the shading described by deks aka Jean-Francois Dube in the book: game programming gems 5. You may also find basic ideas in this thread . In all other shots I'm shading the clouds with an average functi... |
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Posted November 9, 2005 3:17:15 AM
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Dynamic Sky System
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Hey! Thanks to all :) I hope to have some time after writing my diploma thesis for more improvements...
Well, it took me a bit time as I didn't knew anything about gpu programming when I started in July. But with some good books and articles I learn... |
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Posted November 3, 2005 5:34:54 AM
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Rain in ATI Toy Shop demo
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Quote:Original post by jollyjeffers
I picked up this link containing photos of the slides ATI delivered explaining the toyshop demo from this thread over on B3D. The B3D thread contains some interesting general discussion on the topic if y... |
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Posted October 13, 2005 11:51:42 AM
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Rain in ATI Toy Shop demo
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ok...so let's say the splash is a texture mapping trick...when I think about how I would do that, it would be something like:
-prepare a nice texture with random scaled and positioned spalshes
-in a render pass get the depth of my scene
-render th... |
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Posted October 13, 2005 9:30:19 AM
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per pixel displacement mapping
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Quote:Original post by jeroenb
Ok, per-pixel displacement now works, tho still now view independant. For some reason I dont get it rotate correctly like the demo does. I tried to use the inverse/transpose modelview matrix to transform the eye positi... |
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Posted October 5, 2005 9:52:19 AM
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getShaderVersion() ???
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Quote:Original post by RichardS
There are no such versions. If the GLSL extensions string is exported, you can use GLSL. Just be sure to check the HW limits using the functions provided in ARB_vertex_shader and ARB_fragment_shader.
ok. thanks :... |
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Posted September 22, 2005 4:02:12 AM
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getShaderVersion() ???
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Quote:Original post by smitty1276
In Cg there is a function called something like cgGLGetNewestProfile(CG_VERTEX_PROG) or something like that.
thanks :)
and what should I use in GLSL?
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Posted September 21, 2005 11:49:17 AM
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getShaderVersion() ???
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hmmm...but there is no string like GL_ARB_fragment_program_2 or GL_ARB_fragment_program_3 or whatever shader version, or?
I don't want to know if shaders are available. I want to know which version is available. |
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Posted September 21, 2005 11:38:45 AM
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per pixel displacement mapping
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Hey!
Thanks a lot...I'll have a look at it today :) |
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Posted September 19, 2005 3:48:16 AM
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