alexander.zubov Posted January 25, 2012 Share Posted January 25, 2012 I am aiming to achieve manga sort of a look for Steel Storm 2. To put it simply, something similar to TF2 characters' shading with thin colored ink outlines. However, here are examples of what I want for the game to look like: http://fc06.deviantart.net/fs70/i/2011/268/9/8/pepper_delivery_by_artgerm-d4avpe8.jpg http://fc04.deviantart.net/fs28/f/2009/247/b/7/b78e4f452d5e535dab83cfcdfaec9afb.jpg http://fc02.deviantart.net/fs49/f/2009/231/4/8/481facd472badfd4e066b97b01f176dc.jpg http://www.youtube.com/watch?v=j7TBwRlG1iY Has anyone done something like that before? How do I go about achieving such looks? Thank you. Link to comment
ulf.schroeter Posted January 25, 2012 Share Posted January 25, 2012 Maybe this link http://www.valvesoftware.com/publications/2007/NPAR07_IllustrativeRenderingInTeamFortress2.pdf is helpful. Link to comment
alexander.zubov Posted January 25, 2012 Author Share Posted January 25, 2012 yeah, I got that one, but that's why I said "to put it simply" :rolleyes: I tried explaining what I need to achieve before, for other tech, and people didn't get it until I mentioned TF2. However I don't want for people to say "oh, it's looks exactly like TF2". however, thanks anyway. Link to comment
ulf.schroeter Posted January 25, 2012 Share Posted January 25, 2012 until I mentioned TF2. Wasn't clear for me that you where already talking about Team Fortress 2 when overflying your post :rolleyes: Just remembered that valve paper I read years ago and hacked the reply into the keyboard Link to comment
Guest shane.ploenges Posted January 25, 2012 Share Posted January 25, 2012 First off you are going to have to build your content to look at least similar to the style you are trying to achieve. Maybe using textures that are painted in this style would be a good start, and keeping background textures very flat and undetailed. As for the rendering, i dont think Unigine has an existing post process filter like that, howevr there are a ton available if you look around, so you may just need to do some porting of shader code to Unigine. good Luck http://rbwhitaker.wikidot.com/toon-shader Link to comment
alexander.zubov Posted January 25, 2012 Author Share Posted January 25, 2012 Thanks. Hmm.. For some reason I think I saw couple of games powered with Unigine with cartoony look. While textures need to be stylized, the shading of the models and the world + inked outlines are features glsl shader should take care for afaik. I am an artist, not a coder so I am not sure :rolleyes: Link to comment
ulf.schroeter Posted January 25, 2012 Share Posted January 25, 2012 http://rbwhitaker.wi...com/toon-shader This shader example has the problem that it uses multi-pass rendering for outlines (something UNIGINE does not support for custom materials). Therefore for generation of outlines most probably some post-processing shader based on sobel edge detection has to be used e.g. something similar as described in this paper. UNIGINE already provides a basic sobel post-processing material, might be a good starting point, see Sanctuary demo. Link to comment
alexander.zubov Posted January 26, 2012 Author Share Posted January 26, 2012 afaik, the outlines can be prodused using depth buffer. Link to comment
frustum Posted January 26, 2012 Share Posted January 26, 2012 This is a combination of post_filter_sobel material and sepia.dds lut texture. Use sanctuary demo as an example. 1 Link to comment
alexander.zubov Posted January 26, 2012 Author Share Posted January 26, 2012 it's kinda of what we was getting with Darkplaces engine. While it does edge detection, it looks nothing like what we need to achieve :( Link to comment
frustum Posted January 27, 2012 Share Posted January 27, 2012 Try different LUT texture. You can modify the whole rendering pipeline by patching shaders. Link to comment
alexander.zubov Posted February 12, 2012 Author Share Posted February 12, 2012 Try different LUT texture. You can modify the whole rendering pipeline by patching shaders. Is there any way Unigine team can build such shader for us? Sobel doesn't do what it needs to do what we need. Take for example the image you posted. Shadow on the right doesn't need to have outline. Texture details don't need to be outlined. http://fc02.deviantart.net/fs49/f/2009/231/4/8/481facd472badfd4e066b97b01f176dc.jpg Let's look at this image. As you can see, the colored ink outline happens only around the geometry. Diffuse texture details are ignored. I would say that the filter needs to use normal map instead of diffuse map to create outlines around the surface details (and that should be controlled as sometimes only rough or rather deep details need to be outlined). The shading itself doesn't have prominent shadows and the transition from light to dark is subtle. Link to comment
ulf.schroeter Posted February 12, 2012 Share Posted February 12, 2012 Don't think that Unigine will find the time. I would recommend to search internet for edge detection/outline algorithms fitting your needs best. In general in the post-processing shader you can use diffuse, depth and normal for per-pixel shading. In addition certain areas/material could be masked via auxiliary buffer rendering and testing in final composite shader. Actually I haven're found any manga shader on the internet and I would guess that all your example images are hand-drawn. So it seems to be quite difficult to reproduce that look... Link to comment
manguste Posted February 13, 2012 Share Posted February 13, 2012 Alexander is just giving an example, of course these pictures are hand-drawn (I've also seen this CG artist on deviantart :)). And sorry, we do not plan to add cartoon-like shading. If you wish to discuss implementing additional features at your expense - you are welcome to write at support@unigine.com to discuss that. Link to comment
alexander.zubov Posted February 13, 2012 Author Share Posted February 13, 2012 ....If you wish to discuss implementing additional features at your expense - you are welcome to write at support@unigine.com to discuss that. I do wish to do that and I e-mailed you already. Link to comment
alexander.zubov Posted February 15, 2012 Author Share Posted February 15, 2012 So, I did e-mail and pm'ed here. No response.. We are wasting time :) Link to comment
binstream Posted February 15, 2012 Share Posted February 15, 2012 We have a lot of scheduled work so feature requests can't be handled instantly, sorry. Please provide us more specific requirements with references from real-time 3D projects (not hand-drawn art), it will help to estimate the feature. Achieving the clear hand-drawn look will require a lot of research, which doesn't fit into the current development schedule. Link to comment
danni.coy Posted February 20, 2012 Share Posted February 20, 2012 The openGL 4.0 language cookbook talks about using a geometry shader to create toon style outlines (this looks like it might work but will perhaps constrain you to newer hardware). Link to comment
alexander.zubov Posted February 21, 2012 Author Share Posted February 21, 2012 There is no need to do it with OpenGL 4.0 specs. For example DarkPlaces just got this manga shader (although not as advanced as I wanted to, but sufficient for now) and it was done in a matter of few hours. If Unigine devs can't do it, they are more than welcome to look how DarkPlaces does it. And it works even on Intel X3100. So, I am looking for a GLSL / HLSL savvy coder who can grab DarkPlaces GLSL shader and implement it into Unigine. Anyone? Link to comment
vadim.sergeev Posted December 10, 2014 Share Posted December 10, 2014 The openGL 4.0 language cookbook talks about using a geometry shader to create toon style outlines (this looks like it might work but will perhaps constrain you to newer hardware). 1. You need to provide information about the adjacency of vertices. This can be done by changing the index buffer. 2. Requires a geometry shader with input parameter layout( triangles_adjacency ) in. 3. C++ engine core must call with draw mode GL_TRIANGLES_ADJACENCY. This item requires changes to the materials, meshes classes. Link to comment
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