What kind of material can be exported?
Sun, 02/14/2010 - 11:26 — Todilo
Read that directx shader, standard and multi type materials can be exported with kwxport but well I am having a hard time using directx shaders. Anyone have a small guide on how to actually use them? I export shader (using the default.fx) but it cant be loaded. Wont even work to load in directx viewer. Something about it not being SAS compliant.
If you want to lean the
If you want to lean the programming of directx shader, you can read the book "Programming Vertex and Pixel Shaders". But the book only supplies the shader model verison up to 3.0.
DXSAS is one specific way of
DXSAS is one specific way of structuring shaders (what the parameters are and what they mean). The DXViewer only supports using shaders that are written to the DXSAS specification. The 3ds Max default.fx shader is not DXSAS compliant, because it is mainly developed for the needs of 3ds Max, not for the DXViewer.
To use that shader (or any shader), the rendering engine you're using must understand the semantics of the parameters of the shader.
Generally, when developing a shadered render path, the graphics engineers will write software to support certain features in shaders. Then they will develop the shaders in question such that they fit with the engine. Finally, they will adapt those shaders such that they can also be used inside 3ds Max (because 3ds Max has its own requirements on shaders).
If you do not have a shader capable rendering engine, or don't have 3ds Max compatible shaders for that engine, then you will have a tough time actually doing anything with shaders after you have created the art in the modeler.