[icecoldduke]

Hey,

This is non Duke related, but I've created a PBR interaction shader for Quake 4/Doom 3 and Prey.

Video:


Interaction Shader for Quake 4/Doom3/Prey and CG source along with batch files(you need Nvidia CG to compile the shaders to interaction.vfp).
https://github.com/j...l23/idtech4_pbr

Screenshots





-Justin

[Mark]

Looks cool other than the overactive shine.

[Jimmy]

It looks like everything has been smeared in cum.

[Tea Monster]

Doom 3's shader model is very different from PBR.

ICD, any chance of doing this for Polymer? It won't 'fix' the thing, but it will improve a raft of problems.

[icecoldduke]

Jim Rockford, on 25 August 2019 - 02:01 PM, said:

It looks like everything has been smeared in cum.

Oh how I miss Duke 4 feedback .

Tea Monster, on 25 August 2019 - 03:22 PM, said:

Doom 3's shader model is very different from PBR.

ICD, any chance of doing this for Polymer? It won't 'fix' the thing, but it will improve a raft of problems.

The data was definitely designed for phong lighting. Modifying the math to do PBR is only half of the equation, the data has to be modified as well(which is why everything looks very glossy). I'm hoping someone down the line will create proper PBR textures for Prey, Quake 4 and Doom 3, now that I've made a shader for it.

I can defiantly add this to Polymer, but your going to run into the same issue, your lighting/textures that were designed for phong lighting are going to look very glossy and shinny(or even noisy), until you do a full PBR pass.

[Sledgehammer]

Jim Rockford, on 25 August 2019 - 02:01 PM, said:

It looks like everything has been smeared in cum.

What if it's a part of the plot?

[Micky C]

What about adding some of this to polymost now that they've started incorporating shaders there?

[Tea Monster]

Micky C, on 26 August 2019 - 02:47 AM, said:

What about adding some of this to polymost now that they've started incorporating shaders there?

That is a better idea.

[Altered Reality]

What are the software and hardware requirements for this?

[Hendricks266]

Micky C, on 26 August 2019 - 02:47 AM, said:

What about adding some of this to polymost now that they've started incorporating shaders there?

The Polymost rendering algorithm would need to be entirely replaced to add lighting effects.

[icecoldduke]

Altered Reality, on 27 August 2019 - 09:32 AM, said:

What are the software and hardware requirements for this?

I've had people e-mail me and say this runs on hardware from back in 2007.

[icecoldduke]

I uploaded a quick playthrough of Prey with my shader enabled.

[icecoldduke]

Committed a quick fix, the BRDF contribution is now multiplied by the light attenuation/falloff images, and metallic is no longer hardcoded. The specular image is now used as R=Roughness and B=Metallic.

[Tea Monster]

How do you set up and name maps? Are any ports using this?

[icecoldduke]

I have done a lot more work on doing Quake 4 HD work. I've been doing a bunch of memory injection, code detours, and such, I now have a Framebuffer Object that all of the world renders into, the first render texture in the render target is a HDR 16bit image which is used for lighting, the second render target is for the 8bit albedo. With the lighting and the albedo seperate, the lighting looks A LOT better compared to the original. Then on top of that, CaS is now applied to the Albedo render target, and yields way better results. Also I ran the textures through ESARGAN as well.

https://github.com/j...e/master/quake4






image hosting websites

[icecoldduke]

Just made a quick video showing the above features and talking about the stuff I'm doing with Quake 4.

[icecoldduke]

Quake 4 opt in bloom. With sikkmod they basically bloomed the entire framebuffer(or opted to bloom based on how bright a pixel is, instead were able to opt materials in for bloom. Normally this would require engine source, but with the memory detouring stuff I've done, it made opt-in bloom really easy to add.