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Project Rembrandt: Difference between revisions
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→Memory consumption
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For each camera defined in the camera group, there is a separate shadow map, so the video memory usage is : | For each camera defined in the camera group, there is a separate shadow map, so the video memory usage is : | ||
*G-buffer and Lighting buffer: | *G-buffer and Lighting buffer: 20 bytes per pixel. For an HD screen (1920x1080) memory requirement is 40 Mb | ||
*Shadow map: 3 x shadow_map_size x shadow_map_size bytes (if size is 8192, whole map size is 192 Mb | *Shadow map: 3 x shadow_map_size x shadow_map_size bytes (if size is 8192, whole map size is 192 Mb | ||
Not counting textures, display list or vertex buffers for models and terrain | Not counting textures, display list or vertex buffers for models and terrain | ||
3 HD screens require | 3 HD screens require 120 Mb of memory for the buffers (shadow excluded), you're asking 3x8192x8192x3 = 576 Mb (megabytes) of memory for the shadows alone. | ||