VRAM tips

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(formatting and added usage info)
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DXTC1 RGB: .5 Bpp (bytes/pixel)  
+
Compression  |  Memory consumption
DXTC3 RGBA 1 Bpp  
+
<BR><b>DXTC1 RGB:</b>    .5 Bpp (bytes/pixel)  
RGB 16bit 2 Bpp  
+
<BR><b>DXTC3 RGBA:</b>  1 Bpp  
RGB 24bit 4 Bpp  
+
<BR><b>RGB 16bit:</b>    2 Bpp  
Alpha 8bit 1 Bpp  
+
<BR><b>RGB 24bit:</b>    4 Bpp  
RGBA 16bit 2 Bpp  
+
<BR><b>Alpha 8bit:</b>  1 Bpp  
RGBA 32bit 4 Bpp
+
<BR><b>RGBA 16bit:</b>  2 Bpp  
 +
<BR><b>RGBA 32bit:</b>  4 Bpp
 +
 
 +
To figure out total texture size:
 +
width * height * bpp
 +
 
 +
Add 33% if you have Mipmaps.

Revision as of 19:34, 23 February 2006

Compression | Memory consumption
DXTC1 RGB: .5 Bpp (bytes/pixel)
DXTC3 RGBA: 1 Bpp
RGB 16bit: 2 Bpp
RGB 24bit: 4 Bpp
Alpha 8bit: 1 Bpp
RGBA 16bit: 2 Bpp
RGBA 32bit: 4 Bpp

To figure out total texture size: width * height * bpp

Add 33% if you have Mipmaps.

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