r_fbo and related commands.

[ashr]

Hi,

Could someone please elaborate on these? I know what r_fbo does but I'm not sure about the related cvars. Will using the video card to create blur using r_fboblur 1 help performance?

I can't see the other cvars (r_multisample, r_fboheight and width) having any effect.

Thanks in advance.

[foksie]

it turns on hardware buffer. if your card does not support it, nothing will happen (ie. it wont work). its open gl 2 based.

it has to be used with offscreen rendering, using also r_fboheight and width.

generally it causes a significant speedup in offscreen rendering.

[ashr]

i have an 8800GT, i've been using it and it seems to work but i don't know if it is actually speeding up things.

[CaNaBiS]

r_fboblur should be way faster than just software blur as long as you don't use overlapping and such.

[aiken]

For me it doesn't work at all. I have Nvidia 7300GT card which supports OpenGL2.0, but q3mme crashes after running batch rendering from demolist file. There is no logfile so I can't give you any more info but my settings are:

seta r_fbo "1"
seta r_fboBlur "0"
seta r_fboMultiSample "4"
seta r_fboWidth "640"
seta r_fboHeight "480"

seta r_framebuffer "1"
seta r_framebuffer_bloom "1"
seta r_framebuffer_blur_size "256"
seta r_framebuffer_blur_amount "7"
seta r_framebuffer_blur_samples "9"
seta r_framebuffer_bloom_sharpness "0.75"
seta r_framebuffer_bloom_brightness "0.85"
seta r_framebuffer_rotoscope "0"
seta r_framebuffer_rotoscope_zedge "0"

seta r_bloom "1"
seta r_bloom_alpha "0.3"
seta r_bloom_diamond_size "8"
seta r_bloom_intensity "1.3"
seta r_bloom_darken "4"
seta r_bloom_sample_size "128"
seta r_bloom_fast_sample "0"

I've tried many different values, but it's always crashing. Any ideas?