Product Chat / technical question about video memory...

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Mariokiki
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Posted: 12th Dec 2015 16:13
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Hi,

Very often, I use the same texture for several models.
I wonder if it's more economical for the video card or if the texture is loaded each time for each model ?

For details, I use a 2048x2048 texture size in DDS format, with the associated Mormal and Specular texture as well...

Compared to the second solution is to use smaller and specific texture for each model ?

What is the best ?

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Pirate Myke
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Posted: 12th Dec 2015 16:41
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My feeling is using the same textures over multiple models should be better.

Is it technically more practical? Not really sure with the new pipeline. Lee or Ravey would have to inform us more of which is best now.
Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz, 2400 Mhz, 4 Core(s), 4 Logical Processor(s), 8gb RAM, Nvidia gtx660, Windows 7 Pro 64bit

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LeeBamber
TGC Lead Developer
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Posted: 14th Dec 2015 10:31
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We sort by texture, so all entities that share a texture are grouped together so there is no redundant texture swap on the GPU. Just one of a hundred small optimizations all game engines have to do to survive
PC SPECS: Windows 8.1 Pro 64-bit, Intel Core i7-5930K (PASSMARK:13645), NVIDIA Geforce GTX 980 GPU (PASSMARK:9762) , 32GB RAM

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Mariokiki
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Posted: 15th Dec 2015 00:02
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So, good solution to share a big texture for several objects...
and the textures of 2048x2048 are supported by all new generation GPU, right ?


Thanks Lee !
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Pirate Myke
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Posted: 15th Dec 2015 06:24
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Game guru will support textures up to 4096 x 4096
Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz, 2400 Mhz, 4 Core(s), 4 Logical Processor(s), 8gb RAM, Nvidia gtx660, Windows 7 Pro 64bit

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