View Full Version : can I render 1024x1024 image on a 1024x768 displaycard with 3d hardware accelerate

03-03-2003, 06:32 AM
I want to use backbuffer as texture, but 1024x768 is not a valid texture size.1024x512? waste my hardware. Does anyone know a way to render a 1024x1024 image on a computer current display mode is 1024x768.

I try use nView's dual head, One set to 1280x1024, one set to 1024x768, so you can use 1280x1024 to render a 1024x1024 image.But you have to use two monitor. Does anyone know how to let nView don't check physical monitor, with one monitor to get another virtual screen, but you can use it to render image.

03-03-2003, 07:23 AM
Look into rendering to off-screen buffers, such as pbuffers via WGL_ARB_pbuffer (http://oss.sgi.com/projects/ogl-sample/registry/ARB/wgl_pbuffer.txt) .

[This message has been edited by Ostsol (edited 03-03-2003).]

03-03-2003, 11:23 PM
You're on an nVidia card. You can use NV_texture_rectangle.