Re: [JAVA3D] Help with Alpha-only textures

2002-07-17 Thread Kelvin Chung
>Date: Wed, 17 Jul 2002 13:58:10 -0700 >From: Justin Couch <[EMAIL PROTECTED]> >Subject: Re: [JAVA3D] Help with Alpha-only textures >To: Kelvin Chung <[EMAIL PROTECTED]> >Cc: J3D Interest List <[EMAIL PROTECTED]> >MIME-version: 1.0 >Content-transfer-encod

Re: [JAVA3D] Help with Alpha-only textures

2002-07-17 Thread Justin Couch
Kelvin Chung wrote: >Just some information which may help from OpenGL > specification for GL_ALPHA base internal format > > Replace Texture Function > > C = Cf > A = At Now that is interesting and seems counter-intuitive compared to the J3D docs, because that is

Re: [JAVA3D] Help with Alpha-only textures

2002-07-17 Thread Kelvin Chung
TECTED]> >Subject: [JAVA3D] Help with Alpha-only textures >To: [EMAIL PROTECTED] >MIME-version: 1.0 >Content-transfer-encoding: 7bit >X-Accept-Language: en-us, en >Delivered-to: [EMAIL PROTECTED] >User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.0.0) Gecko/20020530 &

Re: [JAVA3D] Help with Alpha-only textures

2002-07-17 Thread Justin Couch
Joachim Diepstraten wrote: > I experienced the same problem some months ago (that was still 1.3b1), I > tried even Luminance-Alpha but I couldn't figure out where the problem > was. Basically my problem I don't know if I need the BufferedImage > AlphaRaster even for non-RGBA Images or how I can

Re: [JAVA3D] Help with Alpha-only textures

2002-07-17 Thread Joachim Diepstraten
Hi Justin > I'm trying to develop a texture-based solution for the VRML Text node. > To do this, I'm creating alpha-only textures to act as a "stencil" over > the geometry as the spec requires that the text be both lit with > material colours and textured (including possibly multi-texturing). > W

[JAVA3D] Help with Alpha-only textures

2002-07-16 Thread Justin Couch
Chasing some help understanding some of the 2D texture modes. It seems they are not what they appear to be. I'm trying to develop a texture-based solution for the VRML Text node. To do this, I'm creating alpha-only textures to act as a "stencil" over the geometry as the spec requires that the tex