[Bf-viewport] Rendering to a cubemap

[Ton Roosendaal]

Hi Clement,

Thanks for reaching out! We are aiming at high quality rendering for Blender viewports, your work therefore is very welcome.

Mike is the right person to talk to as well, he works on migrating current code to be using more modern OpenGL calls.

I am curious to see if there's a design doc of some kind. Do you have a bigger plan where to bring this feature to? You've been reading the discussions and ideas here about shaders, shader editing (nodes), and the proposal to align with Epic game PBR shader design?

We're hanging out a lot in irc.freenode.net #blendercoders. You're welcome there too.

Thanks,

-Ton-

--------------------------------------------------------
Ton Roosendaal  -  ton at blender.org   -   www.blender.org
Chairman Blender Foundation - Producer Blender Institute
Entrepotdok 57A  -  1018AD Amsterdam  -  The Netherlands



> On 23 Jan, 2016, at 19:10, Mike Erwin <significant.bit at gmail.com> wrote:
> 
> So essentially a way to make reflection probes, also light probes for image-based lighting. Is that over-simplifying?
> 
> Mike Erwin
> musician, naturalist, pixel pusher, hacker extraordinaire
> 
> On Sat, Jan 23, 2016 at 12:13 PM, Clément FOUCAULT <foucault.clem at gmail.com> wrote:
> Hi there i'm clément foucault the dev who brought to you the PBR branch
> 
> http://www.clement-foucault.com/#blender_pbr
> 
> I'm making progress with features but one things that limits me is the sampling of the environment.
> For now I am plugging the world node tree inside each shader that contains a brdf node and sample inside the node_shader_gpu_tex_environment function. This is sub-optimal in numerous ways and not very clean.
> 
> To overcome this I must render the environment world tree result to an Envmap (Preferably a Cubemap). I need help designing the rendering and the storing (in memory, not to disk) of such cubemap.
> 
> I've already done a preliminary handling of Cubemap textures inside the PBR branch V0.1 But I think I never pushed it to github (damn). So I'll be integrating it inside my 0.2 branch soon. It only handles the uploading of cubemaps to the gpu not the rendering.
> 
> If anyone knowledgeable in this field could help me I would be very thankful.
> 
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