Which OpenGL Cards for C4

[Anonymous]

Which OpenGL card would be the best to use for C4 in order to get reflections and more transfer modes?

I am currently using an NVidia 7800GT (consumer) card, and it works well, but I can’t get reflections and only have the “Add” transfer mode.

Can the OpenGL settings be adjusted to improve the performance on this card?

[Anonymous]

Im using the QuadroFX 1100 and i dont have any other transfer modes
then Add and Normal in OpenGL. If im not mistaken…the QFx2000 and up supports more modes (not sure, but i think i read it on Discreet/autodesk site a few months ago)

Not sure there’s a “softmod” for Nvidia cards like there’s for ATi (~ X800xt -> FireGL3) Your card should be just fine for C*

But why work in OpenGL when everything works like a charm in software?
I only use OpenGL when im doing a 2d3d scene.

[Anonymous]

Why I want OpenGL is mainly a speed issue… for instance, with my 7800GT card, I can remove the pulldown from film transferred to video, (SDI 8-bit YUV Blackmagic Codec) rotate the layer, with shading and a shadows turned on, and add a colour correct, then play the footage in realtime with OpenGL turned on. The results look great…

With OpenGL turned off, the best I can manage is about 3-4 fps. My computer is an Athlon 64 FX Dual Core with 2 GB of RAM.

[Anonymous]

3-4 fps? 1 layer SD footage without any effects at all? Or is it 2k? I generaly get about 23fps and realtime (PAL, 25fps) with OpenGL but 3-4 fps sounds strange if its SD.

I have a Dual opteron 246 and like i said, 1 layer SD = ~23fps in software.

Do you have a decklink card installed on the computer or do you only use the codec? Not sure but, if you do have a Deckling installed that should take care of the “fps” issue (only seen it in action on a mac) If your working in 2k its probebly your harddrives. abit off topic…back to the point!

Im pretty sure i read that the QuadroFX2000 did support more modes. But I cant find the page @ discreet/autodesk anymore. I would send an E-mail to Autodesk and ask em.

[loops]

I have to wonder why things like Subtract blend mode and four-point layers aren’t supported on more cards – anyone know what exactly is required? My card has the GL_EXT_blend_subtract extension, and what on earth could be nessecary other than standard texturing extensions to support deformable layers? If anyone has a card that supports these things, could you post what extensions it supports?

[Anonymous]

The 3-4 fps I was getting was with the above mentioned effects… 3:2 pulldown, rotated 18 degrees on the y-axis, and shading turned on. With the OpenGL card it’s 30 fps with the same effects.

If anyone’s using a Quadro FX4500 card I’d love to hear what functionality they have. Might be worth springing the 2K to get that.

[luc]

hello

i run a fx4500 pci-express on a box dual opteron dual core, and i didn’t see any plus value about opengl in combustion.

no difference at all, it the same as any quadro card in combustion. It dissapointing i know…

cheers

luc

[Anonymous]

Merci Luc

Est-ce que Combustion peut faire les OpenGL reflexions avec la FX4500?
Et combien de modes transfer fait-il?

Does the 4500 do OpenGL reflections?
And how many transfer modes does it do?

-Norman

[luc]

Hi Norman,

i have built a scene whit 3 solid whit the reflection activated. You can see the reflection in the opengl mode but… The color shift ( a red layer shift to blue) and the playback is 50% slower than normal.

at my sense that just a bullshit feature…

1- display problem. Some layer are black or invisible.
2- color shift
3- sometime slower than standard display
4- you cannot zoom in the picture whitout a weird crop
5- you cannot render opengl
6- unstable etc…

so, think positive, dont use it.

cheers

luc

[orq]

i got a quadro FX1400 PCIe
and these transfer and reflection modes(C4):

transfer:
normal, dissolve, add, subtrackt, multiply, screen, overlay, soft/hard light, darken, lighten, difference, negative, hue, saturation, colorize, luminance, fully additive mix, gray(luma/hsv), shade, saturate, desaturate, behind, exkusion, color dodge/burn

reflection:
same as transfer

on open gl:
transfer – normal and add
reflection – add

maybe that helps[/img]

[Author]

Posts