(Sorry for the slow reply, got my head stuck in converting some C++/D3D/HLSL code over to Java/JOGL(AV3D)/GLSLang stuff right now for siggraph. Fascinating task (grrrr), ask me over a beer sometime... )
Serge Bernier wrote:
Do you meen the MODULATE capabiltiy in the TextureAttributes object???
Correct. Modulate will multiple the object colour with the texture colour.
Ive been playing with the capabilities of the testureAttributes (BLEND,REPLACE,MODULATE,ect..) and the result in java3d is not very good.
It may be the material colour is set to black, rather than white or something else.
still can see clearly the border of the texture and material colors of the object. What else can be modify to have a better result???
Look for the wrap mode setting. IIRC, if VRML does not specify REPEAT, we set it to CLAMP in J3D and OGL. What you probably want is CLAMP_TO_EDGE instead as that will get rid of the border colour. Material colours is harder, but is really up to the model. If you want lighting effects, then that's what the material colour does with modulate mode - I multiplies the object colour from the Material node that has been lit, with the incoming texture colour to get a blended version of the two. Your best bet is to set the material colours to pure white in the Max version so that you just get the straight lighting effects multiplied through the texture.
As for replicating exactly how max renders the materials, that's almost impossible, at least in J3D. From what I know of the internals of MAX and it's file formats, it uses far more texture rendering capabilities than a simple scene graph like J3D is capable of dealing with. It appears as though it is using multipass rendering to blend all the modelled textures together into a single texture before applying it to the object. This could have all sorts of interesting down-stream issues such as no multipass rendering capabilities in J3D, the exporter only dropping a single texture rather than all the textures and the multitexture combine instructions etc. In short, MAX is a movie-quality renderer. Modelling for realtime is a completely different process and requires using a very small subset of the available tool options.
-- Justin Couch http://www.vlc.com.au/~justin/ Java Architect & Bit Twiddler http://www.yumetech.com/ Author, Java 3D FAQ Maintainer http://www.j3d.org/ ------------------------------------------------------------------- "Look through the lens, and the light breaks down into many lights. Turn it or move it, and a new set of arrangements appears... is it a single light or many lights, lights that one must know how to distinguish, recognise and appreciate? Is it one light with many frames or one frame for many lights?" -Subcomandante Marcos -------------------------------------------------------------------
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