howetuft

Hello @mmp, First, thank you for this new version of your great and inspiring rendering engine! I'd like to write an exporter from FreeCAD to pbrt-v4, but for this purpose...

OK, thank you, I thought there was a recomputation mechanism in case they were not provided (as there was no error)! I'll try to add them... And what about the...

`it's not clear to me whether that corresponds to the opengl or dx convention.` If you don't invert Green, I would say it's OpenGL, like in Blender (https://docs.blender.org/manual/en/2.79/render/blender_render/textures/properties/influence/bump_normal.html). For normal...

Hello, You're right. I'll try to see what I can already adapt to the current state of the new system.

To spare me some time: could you please attach a file illustrating the problems encountered? Thanks in advance!

Er, actually, I think the problem might be more complex than just adapting Render: https://forum.freecad.org/viewtopic.php?p=752086#p752086 To quote @wwmayer: > many, many colouring things are broken now. Perhaps I'll wait a...

> The conversion of appearance-parameters to the render-WB seems to be lossy, so especially shininess-settings seems to get lost. Sure. It's not lost, it's just unhandled - a logical consequence...

@berberic2 Please note also : The shading model retained in ShapeAppearance (Diffuse/Ambient/Specular/Emissive/Shininess) is not physically-based. This is in no way a judgment and I even think it's perfectly suited to...

> you might be better off exporting to Blender instead. Well, I don't agree with you. At least 2 not-so-obvious conditions for exporting to Blender: 1. Know how to use...

Just rereading your post: First, thank you for your frank opinion, it made me think about what I want to do for Render, and what I don't. And from this...