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MARS_999

Again ATI and Nvidia differences with FBO's

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I am having issues with ATI and Nvidia again. On my Nvidia 6800GT I have everthing rendering fine. My depth, reflection, refraction textures all look ok. They look good whether I am using FBO's or glTexCopyImage2D(). On ATI with the same code base this isn't the case. Now with glTexCopyImage2D() I have no values showing up in the depth texture, and with FBO's I have a depth texture with some values showing up but not as well as the Nvidia card. Now the reflection textures on the ATI card have grey color where my sky should be. And my refraction is for the most part MIA when I look at it. This kind of thing makes a guy want to use DX...

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posting some screen shots/code is always helpfull you know (and lets face it, with teh amount of posts you've made you should know by now i'm going to ask for this...)

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Yeah Yeah, hate having to upload them might have to look into a GDnet+ membership? I have webspace to host images then don't I? I will try later I have to leave and I need to use my laptop to get the ATI screenshots. BTW its a x700mobility chip.

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Quote:
Original post by MARS_999
Yeah Yeah, hate having to upload them might have to look into a GDnet+ membership? I have webspace to host images then don't I?


indeed you do, many megs of it [grin]

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Guest Anonymous Poster
http://www.free-webhosts.com/free-image-hosting.php

http://www.villagephotos.com/

Hope that helps. Got those from a quick google search.

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Quote:
Original post by JavaCoolDude
Use Depth16 on ATi and revert to Depth24 on NVIDIA.


One step ahead of you JavaCoolDude. I already tried that. :) Thats why I am posting for ideas!! ;) Thanks for the tip though

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Here are the SS of the problems. The depth one I left out due to its all white. Unless I use FBO's then it shows up but not as well as the Nvidia card. I am seeing the same issues whether or not I use FBO's except depthtexture when I use glCopyTexImage2D or FBO's. Using 5.9 drivers.

refraction image
http://img475.imageshack.us/img475/144/refraction9qy.jpg

reflection image
http://img475.imageshack.us/img475/5872/reflection0yi.jpg

Like I said my Nvidia card runs great and no issues. ATI I am getting strange results and the grey relfection is wrong the nvidia reflects the sky as it should...

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I am going to assume then its a driver issue... Due to my nvidia card works with my code base and ATI doesn't render 100% correctly.

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