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gaurav khanduja

3d Texture mapping

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I have a created 8 3d textures of size 256 * 256 * 256, when I am rendering 204 slices for each texture, i see all 8 textures in 8 different viewport; when i render these 8 textures with 205 slieces for each of them, i see 7 textures , i dont see anything in 8th viewport; when i render these 8 textures with 239 slices i see only 6 textures and in two viewports i dont see anything. I am not able to understand why this is happening ? Am i doing something wrong? I am using Nvidia Geforce 5200 graphics card with 1 Gb of RAM . Thanks in advance. GK

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Quote:
Original post by gaurav khanduja
I have a created 8 3d textures of size 256 * 256 * 256, when I am rendering 204 slices for each texture, i see all 8 textures in 8 different viewport; when i render these 8 textures with 205 slieces for each of them, i see 7 textures , i dont see anything in 8th viewport; when i render these 8 textures with 239 slices i see only 6 textures and in two viewports i dont see anything.

I am not able to understand why this is happening ? Am i doing something wrong?

I am using Nvidia Geforce 5200 graphics card with 1 Gb of RAM .

Thanks in advance.

GK


The GeForce FX 5200 doesn't have the 1 GB of ram, I suppose? [smile] I believe the problem has to do with memory running out anyway, as

256*256*256*4Bpp = 64MB of data per volume, multiplied by 8 is 512MB just for the textures.

Have you tried to use smaller volumes?

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Well I agree with you that Geforce doesnt have 1 Gb of RAM, but my system has, that was what I was talking about. May be I was not clear ,my apologies. Geforce has 128 MB of memory. Now it can load textures way beyond its graphics memmory is due to texture caching which most of the new graphics card allow. This is where I suppose 1 GB of RAM is being used.

I tried to load as many as 30 textures of 256 * 256 * 256 - and i was able to render 6 slices of each texture. (in different viewports).

So i tried this

Created 8 3d textures of size 256 * 256 * 256, when I am rendering 204 slices for each texture, i see all 8 textures in 8 different viewport; when i render these 8 textures with 205 slieces for each of them, i see 7 textures , i dont see anything in 8th viewport; when i render these 8 textures with 239 slices i see only 6 textures and in two viewports i dont see anything.

I am not able to understand why this is happening ? Am i doing something wrong?

My system has Nvidia Geforce 5200 (128 MB of RAM) graphics card and 1 Gb of RAM .

Thanks in advance.

GK

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