http://www.guerillarender.com/wiki/ 2012-03-07T18:42:28+01:00 http://www.guerillarender.com/wiki/ http://www.guerillarender.com/wiki/lib/images/favicon.ico text/html 2010-10-24T22:34:27+01:00 http://www.guerillarender.com/wiki/doku.php?id=3d_mask&rev=1287952467&do=diff Here the basic concept to mask in 3d. Into a material or light shader: * Create a gizmo/locator node * Create an input node set to "P" * Create a binop node set to substract * Create a length node * Create a smoothstep node Into the smoothstep node properties: text/html 2012-02-16T23:31:19+01:00 http://www.guerillarender.com/wiki/doku.php?id=bake_3d&rev=1329431479&do=diff With this node, we can bake in point clouds any shading result we want and then re-use those point clouds in shaders. This is used in production to avoid the recomputation of an heavy process like the ambient occlusion without the need of st parameters on the primitives. It can also be used to blur a grainy shading result, like in this examples : text/html 2010-10-22T00:58:12+01:00 http://www.guerillarender.com/wiki/doku.php?id=coloredshadows&rev=1287701892&do=diff Here are various tips & tricks * Custom colored shadows * Pseudo Light transmission text/html 2010-10-21T23:02:42+01:00 http://www.guerillarender.com/wiki/doku.php?id=customcoloredshadows&rev=1287694962&do=diff [This article is adapted from a post of Gam on a 3dvf.com thread] By default, Guerilla doesn't provide colored shadows yet. Lights in Guerilla are shaders, so you can 'program' your lights and override their default behaviour, such as coloring shadows casted by any lights. First of all, create a Spotlight from the library, then double-click the Spotlight shader in the browser (or drag it onto a shader editor or browser) to edit its shader. Inside the light shader, I did the following: text/html 2010-10-23T02:23:19+01:00 http://www.guerillarender.com/wiki/doku.php?id=fake_caustic&rev=1287793399&do=diff Edit in progress ... Concept introduced in advanced renderman 3 Render harder. [Fake caustic] text/html 2012-02-16T23:31:19+01:00 http://www.guerillarender.com/wiki/doku.php?id=gamma_correction&rev=1329431479&do=diff Working in a Gamma corrected pipeline is not a trivial issue. It induces a lot of side effects, especially in compositing, with not Gamma aware users and/or compositing tools. Most 3d and rendering packages are Gamma aware, but generally bypass the Gamma correction mechanisms so newcomers won't have the trouble of fully understanding the Gamma correction subtleties. text/html 2010-10-23T11:17:19+01:00 http://www.guerillarender.com/wiki/doku.php?id=gammapipeline&rev=1287825439&do=diff This article explains how to composite images rendered with Guerilla with third party compositing softwares. Please note that this article is focused on dealing with Gamma correction. If you're not working in a Gamma corrected pipeline, this article is not useful to you. text/html 2010-10-21T03:49:45+01:00 http://www.guerillarender.com/wiki/doku.php?id=guerilla_standalone&rev=1287625785&do=diff * Compositing * Lighting * Shading * Scripting * UI * Viewport text/html 2010-10-24T20:40:45+01:00 http://www.guerillarender.com/wiki/doku.php?id=how_use_low_samples_raytracing_with_the_bake_3d_node&rev=1287945645&do=diff Here is a little tip to see how we can use the bake 3D node. Take a light, a square spotlight, or whatever you want, and set the Shadow mode to Raytrace, with few samples: With = 15, Samples = 2 Notice the grainy aspect of the casted shadow. To alleviate this, we can add a Bake3d node: text/html 2010-10-22T03:27:10+01:00 http://www.guerillarender.com/wiki/doku.php?id=input_node&rev=1287710830&do=diff text/html 2012-02-16T23:31:19+01:00 http://www.guerillarender.com/wiki/doku.php?id=leafshader&rev=1329431479&do=diff This article explains how to fake a translucent material whithout subsurface scaterring (sss). In reality many materials are slightly translucent and sss would be the “most physically correct” solution to obtain a realistic result but in a 3d scene, SSS might sometimes be a bit like hammer to smash a fly, and we can efficiently fake this translucent effect with a very simple trick. text/html 2010-10-27T12:59:18+01:00 http://www.guerillarender.com/wiki/doku.php?id=leafshader_shadows&rev=1288177158&do=diff Intro: This tutorial would beginning to answer about how to get sexy shadows, for the introducted fake translucent material tutorial. Setup the scene Create a set with all the fake translucent objects, and, name it fakeSSS_set. Remove these objects from casting shadows in the DefaultLighting. text/html 2010-10-22T02:49:27+01:00 http://www.guerillarender.com/wiki/doku.php?id=light_transmission&rev=1287708567&do=diff Introduction: Light Transmission concept For a transparent or translucent object there may be light sources behind the object so there is transmitted or refracted light.There can be both diffuse refracted light, as in frosted glass, and specular refracted light, as with clear glass or water.The modeling of translucent objects with diffuse refracted light is difficult so we will only do specular refracted light. In scan line rendering we usually ignore refraction or the "shifting" ef… text/html 2010-10-22T00:55:48+01:00 http://www.guerillarender.com/wiki/doku.php?id=lighting&rev=1287701748&do=diff This is the area where you can explain some concept of Lighting. * Lights * light transmission * Shadows text/html 2011-11-21T19:30:53+01:00 http://www.guerillarender.com/wiki/doku.php?id=memoryusage&rev=1321900253&do=diff Frame buffer When rendering high number of outputs in layer with high sampling rate, the frame buffers can grow very rapidly, especially if you're rendering with translucent/transparent objects (hair, sprites.) To make it worse, stereo will double the frame buffer memory. text/html 2011-11-15T15:28:21+01:00 http://www.guerillarender.com/wiki/doku.php?id=noise&rev=1321367301&do=diff Sampling Antialiasing - jaggy edges When you notice flickering on the edges of object, it is probable that the sampling rate is too low. In the properties of the rendered layer that causes noise, Render Settings > Sampling, increase Sampling Width and Sampling Height. 6×6 can be considered a minimum for still production, but you can go much higher for animation production. text/html 2012-02-16T23:31:19+01:00 http://www.guerillarender.com/wiki/doku.php?id=notrendering&rev=1329431479&do=diff Nothing is rendered in the viewport when I Shift+Right button Check the Render Selection button is turned off. The layer is not rendering * In the Render Passes, make sure the layer, render group and output are enabled -- and not frozen! * Make sure the Near and Far planes are correctly set! * Make sure you selected to correct camera in the layer * Check something is connected in your layer/group/output (select the layer output, click the Primitives button in properties, and verify o… text/html 2010-10-21T04:32:19+01:00 http://www.guerillarender.com/wiki/doku.php?id=p&rev=1287628339&do=diff Introduction: Calling variables "P" From a Material or an Illuninance loop From a light shader or an Illuminate loop Modifying variables "P" Space convertion Displacement Observations text/html 2010-10-22T04:05:05+01:00 http://www.guerillarender.com/wiki/doku.php?id=predefined_variables&rev=1287713105&do=diff During the shading process ,we always have to deal with Predefined Shader Variables . It is important to understand the core concept of it. Hopefully since Guerilla Render is a REYES ,you'll find a lot of documentations about these variables. Most of these suite the “RiSpec” naming convention. text/html 2010-10-23T14:32:40+01:00 http://www.guerillarender.com/wiki/doku.php?id=prepareasset&rev=1287837160&do=diff WIP This topic will give some guidelines on how to prepare an asset for exportation to Guerilla Render. Asset stand for a character, a car, a set or any props that has its own Maya project and will be later referenced in other Maya projects. WIP - Tag the Rig and the Skeletons with the “Export Off” tag in the rig maya asset. - Combine objects - Set frame range to 1-1 in assets - Don't use FreezeTransform on objects in the Anim asset stage, do it in the Char stage because it will change the s… text/html 2010-10-22T04:10:22+01:00 http://www.guerillarender.com/wiki/doku.php?id=pseudo_light_transmission&rev=1287713422&do=diff A user is currently editing this page, please leave it as it Introduction: Currently in Guerilla Render 0.9.58 beta, colored antialiased shadow is unavailable. To achieve this kind of effect we have several ways. It would be good for the user to understand the light transmission concept,but it is not required. text/html 2011-04-17T14:01:09+01:00 http://www.guerillarender.com/wiki/doku.php?id=renderfarm&rev=1303041669&do=diff Some resources to help to install the render farm and administrate the Guerilla Render computers. A Windows BAT file to install and setup Guerilla and Coalition from the network : REM install Guerilla in silent mode "\\server\deploy\Guerilla for Maya 2010 0.10.48 (64 bits).exe" /S REM set the registry with some options regedit /s \\server\deploy\guerilla.reg REM install coalition in silent mode \\server\deploy\Coalition-Win32-3.7.exe /S REM disable the standby powercfg /x /standby-ti… text/html 2010-10-21T02:53:31+01:00 http://www.guerillarender.com/wiki/doku.php?id=shader_variables&rev=1287622411&do=diff * Particles variables * Predefined variables FIXME text/html 2010-10-21T05:00:47+01:00 http://www.guerillarender.com/wiki/doku.php?id=shading&rev=1287630047&do=diff This is the area where you can explain some concept of shading. * Arbitrary Output Variable AOV * Functions * Guerilla shading paradigm * Illuminance loop * Illuminate loop * Material * Message passing * Nodes * Point based * Shader variables text/html 2010-10-23T15:41:27+01:00 http://www.guerillarender.com/wiki/doku.php?id=shading_nodes&rev=1287841287&do=diff This is the area where you can explain the nodes concept. * Bake 3d * BinOp * Color * Indirect diffuse * Input * Shadow * SingleOp * SL Box FIXME feel free to complete the list text/html 2011-11-15T14:12:40+01:00 http://www.guerillarender.com/wiki/doku.php?id=start&rev=1321362760&do=diff This Wiki provides an alternative documentation open to the community. * Videos * Guerilla for maya * Guerilla standalone * Tips and Tricks * Troubleshooting * Tutorials * Working with animations * Renderfarm and administration tips text/html 2011-02-28T16:10:02+01:00 http://www.guerillarender.com/wiki/doku.php?id=tips&rev=1298905802&do=diff Here are various tips & tricks * 3d masking * How to have colored shadows * Fake caustic * how use low samples raytracing with the bake 3D node. * how to select some texture using a pattern on the filename. text/html 2011-11-15T15:45:14+01:00 http://www.guerillarender.com/wiki/doku.php?id=traceflicking&rev=1321368314&do=diff Noisiness in raytracing See Noise for a more detailed topic on noise. Black patches When experiencing black patches on objects, increase the ray offset for these objects. This is important especially for displaced geometry. * in object properties, increase Raytracing > Ray Offset text/html 2011-11-21T19:38:12+01:00 http://www.guerillarender.com/wiki/doku.php?id=troubleshooting&rev=1321900692&do=diff * Not Rendering? * Noise * Raytrace flicking * Memory Usage text/html 2010-10-24T23:27:10+01:00 http://www.guerillarender.com/wiki/doku.php?id=tutorials&rev=1287955630&do=diff * Composite Guerilla gamma correct images * Fake a translucent material without subsurface scattering * Fake transmission shadows for fake translucent material * Prepare an asset in Maya for exportation text/html 2010-10-21T01:06:43+01:00 http://www.guerillarender.com/wiki/doku.php?id=user_interface&rev=1287616003&do=diff This Wiki provides an alternative documentation open to the community. * Browser * Console * Curves * Library * Linking * Node list * Node picker * Properties * Render passes * Render view text/html 2012-02-16T23:31:19+01:00 http://www.guerillarender.com/wiki/doku.php?id=videocamera&rev=1329431479&do=diff text/html 2012-02-16T23:31:19+01:00 http://www.guerillarender.com/wiki/doku.php?id=videolayer&rev=1329431479&do=diff text/html 2012-02-16T23:31:19+01:00 http://www.guerillarender.com/wiki/doku.php?id=videolayout&rev=1329431479&do=diff text/html 2012-02-16T23:31:19+01:00 http://www.guerillarender.com/wiki/doku.php?id=videolight&rev=1329431479&do=diff text/html 2010-10-23T21:40:46+01:00 http://www.guerillarender.com/wiki/doku.php?id=videomaterial&rev=1287862846&do=diff text/html 2010-10-23T21:38:56+01:00 http://www.guerillarender.com/wiki/doku.php?id=videos&rev=1287862736&do=diff * Managing the layout and the panels * Using the materials * Using the lights * Using the cameras * Using the layers * Using the layers as texture targets text/html 2012-02-16T23:31:19+01:00 http://www.guerillarender.com/wiki/doku.php?id=videotexturetarget&rev=1329431479&do=diff