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#1
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DirectX 8.1 on nVidia Quadro FX 1300 problem!
Hi All,
we designed a 3D medical project for CT and MR to draw a scene using three different pixel shaders. It works on any video cards(Such as nVidia, Matrox, ATI, etc.) on 32bit machine properly and under any OSs. But it looks weird on nVidia Quadro FX 1300 on Dell Workstation 370( 64 bits machine). The brief description about drawing is like: - Clear 3D device - BeginScene - Select pixel shader A; Draw something - Select pixel shader B; Draw something - Select pixel shader C; Draw something - EndScene - Present The weird performance looks like current scene is previous scene, sometimes two scenes are mixed up. What causes the problem? Does PCI Express card cause the problem? Does new feature of new so-called generation nVidia card cause the problem? When I draw three different parts of one texture on three different viewports using three DrawPrimitive, it appears same part of the texture on the screen. But when I draw the three different parts of one texture on same viewport using only one DrawPrimitive, it works properly. yulong |
#2
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"Yellong Cao" wrote in message om... Hi All, we designed a 3D medical project for CT and MR to draw a scene using three different pixel shaders. It works on any video cards(Such as nVidia, Matrox, ATI, etc.) on 32bit machine properly and under any OSs. But it looks weird on nVidia Quadro FX 1300 on Dell Workstation 370( 64 bits machine). The brief description about drawing is like: - Clear 3D device - BeginScene - Select pixel shader A; Draw something - Select pixel shader B; Draw something - Select pixel shader C; Draw something - EndScene - Present The weird performance looks like current scene is previous scene, sometimes two scenes are mixed up. What causes the problem? Does PCI Express card cause the problem? Does new feature of new so-called generation nVidia card cause the problem? When I draw three different parts of one texture on three different viewports using three DrawPrimitive, it appears same part of the texture on the screen. But when I draw the three different parts of one texture on same viewport using only one DrawPrimitive, it works properly. yulong Might want to upgrade to DX9.0 |
#3
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"BK24" wrote in message ...
"Yellong Cao" wrote in message om... Hi All, we designed a 3D medical project for CT and MR to draw a scene using three different pixel shaders. It works on any video cards(Such as nVidia, Matrox, ATI, etc.) on 32bit machine properly and under any OSs. But it looks weird on nVidia Quadro FX 1300 on Dell Workstation 370( 64 bits machine). The brief description about drawing is like: - Clear 3D device - BeginScene - Select pixel shader A; Draw something - Select pixel shader B; Draw something - Select pixel shader C; Draw something - EndScene - Present The weird performance looks like current scene is previous scene, sometimes two scenes are mixed up. What causes the problem? Does PCI Express card cause the problem? Does new feature of new so-called generation nVidia card cause the problem? When I draw three different parts of one texture on three different viewports using three DrawPrimitive, it appears same part of the texture on the screen. But when I draw the three different parts of one texture on same viewport using only one DrawPrimitive, it works properly. yulong Might want to upgrade to DX9.0 Thank your suggestion first. Do any 3D games developed in DX8 update to DX9? What a great job to do! I don't know what kind architecture beneath the nVidia so-called new generation video card. Does it handle special message for itsself? or update and present scene when change viewport or matrices? or other wired stuff? yulong |
#4
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"Yellong Cao" wrote in message om... "BK24" wrote in message ... "Yellong Cao" wrote in message om... Hi All, we designed a 3D medical project for CT and MR to draw a scene using three different pixel shaders. It works on any video cards(Such as nVidia, Matrox, ATI, etc.) on 32bit machine properly and under any OSs. But it looks weird on nVidia Quadro FX 1300 on Dell Workstation 370( 64 bits machine). The brief description about drawing is like: - Clear 3D device - BeginScene - Select pixel shader A; Draw something - Select pixel shader B; Draw something - Select pixel shader C; Draw something - EndScene - Present The weird performance looks like current scene is previous scene, sometimes two scenes are mixed up. What causes the problem? Does PCI Express card cause the problem? Does new feature of new so-called generation nVidia card cause the problem? When I draw three different parts of one texture on three different viewports using three DrawPrimitive, it appears same part of the texture on the screen. But when I draw the three different parts of one texture on same viewport using only one DrawPrimitive, it works properly. yulong Might want to upgrade to DX9.0 Thank your suggestion first. Do any 3D games developed in DX8 update to DX9? What a great job to do! I don't know what kind architecture beneath the nVidia so-called new generation video card. Does it handle special message for itsself? or update and present scene when change viewport or matrices? or other wired stuff? yulong When you install the game it will usually update it to the required DX level. I would try to find 9.0b if you could. 9.0c seems to have problems for a few people. |
#5
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"BK24" wrote in message ... "Yellong Cao" wrote in message om... "BK24" wrote in message ... "Yellong Cao" wrote in message om... Hi All, we designed a 3D medical project for CT and MR to draw a scene using three different pixel shaders. It works on any video cards(Such as nVidia, Matrox, ATI, etc.) on 32bit machine properly and under any OSs. But it looks weird on nVidia Quadro FX 1300 on Dell Workstation 370( 64 bits machine). The brief description about drawing is like: - Clear 3D device - BeginScene - Select pixel shader A; Draw something - Select pixel shader B; Draw something - Select pixel shader C; Draw something - EndScene - Present The weird performance looks like current scene is previous scene, sometimes two scenes are mixed up. What causes the problem? Does PCI Express card cause the problem? Does new feature of new so-called generation nVidia card cause the problem? When I draw three different parts of one texture on three different viewports using three DrawPrimitive, it appears same part of the texture on the screen. But when I draw the three different parts of one texture on same viewport using only one DrawPrimitive, it works properly. yulong Might want to upgrade to DX9.0 Thank your suggestion first. Do any 3D games developed in DX8 update to DX9? What a great job to do! I don't know what kind architecture beneath the nVidia so-called new generation video card. Does it handle special message for itsself? or update and present scene when change viewport or matrices? or other wired stuff? yulong When you install the game it will usually update it to the required DX level. I would try to find 9.0b if you could. 9.0c seems to have problems for a few people. You can try this link - http://www.microsoft.com/downloads/d...DisplayLang=en [Watchout for Wrap URL] The CD that with the graphic card should contain DirectX9 CapFusion,... |
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