Voodoo1,2,3 all have a 256x256 maximum texture size limitation. in hw, by
design.
I dont know if or how this is expressed thru the J3D API to J3D API users
for runtime discovery.
If you have the DX SDK, run the DX caps viewer tool. Check out the
capability bits for the HAL device for that card; D3DDevices/Primary
DisplayDriver/HAL/Misc/Min and MaxTextureWidth/Height.
-----Original Message-----
From: J. Lee Dixon [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, July 18, 2000 5:05 AM
To: [EMAIL PROTECTED]
Subject: [JAVA3D] J3D 1.2beta DirectX on Voodoo3
I recently tried my J3D software that runs fine on J3D 1.2 OpenGL /
WinNT / ATI Rage PRO, but had MAJOR problems on my J3D 1.2beta DirectX /
Win98 / Voodoo3 2000.
The first problem dealt with textures. Not the same texturing problem
we see with the OpenGL drivers for the Voodoo3. In this case, textures
from one object would jump to another, and MANY more strange events.
After debugging, I figured out that the culprit was that I had a LARGE
(>4mb) texture. After replacing this texture with a much smaller one
(256x128), texturing worked fine. Sounds to me like this board does not
like textures probably greater than 2mb or some other limit.
The second problem which I haven't found a fix for was the display of
polygons in pure wireframe mode. Triangles that are clipped by the
edges of the screen seem to be "re-tessellated". If two vertices (A and
B) are on-screen, but C is off-screen. Instead of a line being drawn
from A-C, a line would be drawn from A to the point where B-C
intersected the edge of the window.
Kinda hard to explain (I could take a snapshot), but could somebody else
with a Voodoo3 try wireframe display to see if I just have a bad driver
setup?
Thanks,
Lee
J. Lee Dixon
Software Engineer
SAIC - Celebration, FL
[EMAIL PROTECTED]
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