[Mihai]

Btw, and sorry if this is way too obvious: The major priority for GPU in terms of which features to add next, has to be additive materials. Without this, we can't render 98% of any scene....Any estimations here? 4 months? 6?

[T0M0]

Btw, and sorry if this is way too obvious: The major priority for GPU in terms of which features to add next, has to be additive materials. Without this, we can't render 98% of any scene....Any estimations here? 4 months? 6?

THIS

[Tea_Bag]

Btw, and sorry if this is way too obvious: The major priority for GPU in terms of which features to add next, has to be additive materials. Without this, we can't render 98% of any scene....Any estimations here? 4 months? 6?

Agree I am not even using GPU at present due to not having additive materials

[Max]

it is really quite hard to stay positive..
This engine on version 4 is completely unusable for anything production related. If you people wanted us to beta test your software, you should have done that internally with way more customers.

this is starting to get really annoying. So V4 will be usable in 9 months? Do you guys have an estimate date or we just stick to v3 and call it over?

Sorry but running out of patience, if i had a glimpse thing would have been like this i'd have never bought maxwell.

[luis.hijarrubia]

In general you can read the roadmap up to down and suppose that order. At least that was initially the order we thought. I know that some order have been changed and things like multigpu are going to be sooner.

[T0M0]

Ufff... the Additive layers has lowest priority then ? If we should read from top to bottom.

I doubt that many users use coating, complex IORs or dispersion more than Additive layers.

What about making some voting poll about what we, users, would like to see/use first ? At least you will have some small overview of our needs/requests.

[Tea_Bag]

I doubt that many users use coating, complex IORs or dispersion more than Additive layers.

I hardly use these for everyday product design materials.

[Half Life]

I would put Additive Layers at #3 in terms of priority... there really isn't much point without them.

[luis.hijarrubia]

Well, I would communicate your opinion over this. Anyway, the order is not only done because of utility, but there are technical issues over it. And additive layer is one of the most difficult things to port to GPU, and we need some previous features to be in beforehand.

Anyway, you are lucky that i'm not the one taking decisions, if it were for me I would remove additive layers from whole maxwell

But anyway, I'll push it to management to see if we can have it earlier.

[Max]

Well, I would communicate your opinion over this. Anyway, the order is not only done because of utility, but there are technical issues over it. And additive layer is one of the most difficult things to port to GPU, and we need some previous features to be in beforehand.

Anyway, you are lucky that i'm not the one taking decisions, if it were for me I would remove additive layers from whole maxwell

But anyway, I'll push it to management to see if we can have it earlier.

Im curious to why you would remove additive layers, are they so hard to develop or port? Is that the only reason or there is something else, like not efficent?

Also, sorry for the question but are you guys sure you can complete this GPU porting? Im wondering if it was better to just stick to CPU and improve that with embree and other technologies instead of going on GPU..considering what it looks like.

[Mihai]

if it were for me I would remove additive layers from whole maxwell

Lets remove them then. Have an opaque non SSS plastic specific BSDF, and a metal specific BSDF. Simple
This used to be how Maxwell alpha worked...

[seghier]

Hdr and gpu render again
Under hdr settings when i change lighting or refraction or reflection to active sky the objects appeared
But with hdr only always black
And why this message ?: Refration/ refelection not supported in gpu

[luis.hijarrubia]

Im curious to why you would remove additive layers, are they so hard to develop or port? Is that the only reason or there is something else, like not efficent?

Also, sorry for the question but are you guys sure you can complete this GPU porting? Im wondering if it was better to just stick to CPU and improve that with embree and other technologies instead of going on GPU..considering what it looks like.

It's more a philosophical position than technical. I think Additive layers are a trick more than a good approximation of how materials are, or at least the auto-energy compensation to avoid materials reflecting more light than it received. And yes, they are slower than usual brdf weighing or layer opacity.

And yes, we are sure about this new engine. It's a technical challenge, but we are on a good way. You will see versions really soon where image is very very similar between GPU and CPU (at least with supported features). And I think we will complete all the features in less time than many other engines had needed.

Coming back to Additive layers, your concern is taking really serious, and priority is likely to change.

[luis.hijarrubia]

Hdr and gpu render again
Under hdr settings when i change lighting or refraction or reflection to active sky the objects appeared
But with hdr only always black
And why this message ?: Refration/ refelection not supported in gpu

Refraction and reflection passes (on render options, instead of All, selecting other options like reflections, diffuse + refraction...) are not supported yet. The message refers to that. Maybe the message is showing when shouldn't.

[luis.hijarrubia]

Hdr and gpu render again
Under hdr settings when i change lighting or refraction or reflection to active sky the objects appeared
But with hdr only always black
And why this message ?: Refration/ refelection not supported in gpu

Checked this, and in my version (working on 4.0.0.9) is works like in cpu. If in illumination I select same as background it works with hdr, if select physical sky, it gets more blue, and if i select HDR it goes black. But it goes black on both, cpu and gpu. Will check if that's intended.