shadows in the freecad viewport

[Kunda1]

What about the ladybug solar analysis integration that yorik implemented recently (that deprecated pysolar)

Need to find the link

[saso]

Given a surface, is there a way to measure the ratio of shadowed areas vs the lighted up areas on that surface?

User microelly2 created a script that can possibly do this for you, basically it calculates the shadows and creates real geometry for it, from which you can then get the area... Here is a link to the discussion https://forum.freecadweb.org/viewtopic. ... ow#p146408 and the link to his website with the script and an example model http://freecadbuch.de/doku.php?id=blog: ... bbildungen

The script can probably get improved but I guess the basic concept should be ok, here is something similar done in creo https://www.youtube.com/watch?v=oppjLDoToa4

[aang89]

Thanks Kunda1 and saso!

Given a surface, is there a way to measure the ratio of shadowed areas vs the lighted up areas on that surface?

User microelly2 created a script that can possibly do this for you, basically it calculates the shadows and creates real geometry for it, from which you can then get the area... Here is a link to the discussion https://forum.freecadweb.org/viewtopic. ... ow#p146408 and the link to his website with the script and an example model http://freecadbuch.de/doku.php?id=blog: ... bbildungen

The script can probably get improved but I guess the basic concept should be ok, here is something similar done in creo https://www.youtube.com/watch?v=oppjLDoToa4

This is quite similar to what I'm looking for. I'll have a look at these scripts. Thanks for all the help again!

[obelisk79]

Was very excited (I know, its 'just' eye candy, but still) to try out the shadow shading.

I'm using the realthunder fork: https://github.com/realthunder/FreeCAD/tree/LinkMerge/

I don't have any shadows when I enable them from the pulldown icon.



Am I missing some kind of parameter to set in order for them to work properly?

I'm using an AMD R7950 video card if that makes a difference.

[realthunder]

I'm using an AMD R7950 video card if that makes a difference.

Are you using Windows? Maybe you can try some fix proposed here.

[obelisk79]

Thanks, but I've already tried that without any luck. Maybe I need to make the jump to nvidia if I want the fancy graphics.

[koin3D]

Thanks, but I've already tried that without any luck. Maybe I need to make the jump to nvidia if I want the fancy graphics.

Also using an AMD graphic card.

- Did a test, using glintercept NO_ERROR edition :

https://github.com/YvesBoyadjian/glinte ... ag/1.3.5.5

- With last version of realthunder FreeCAD compiled today, I have an error message in the console :

23:42:00 Coin info in SoGLSLShaderObject::printInfoLog(): GLSLfragmentShader log: 'Fragment shader failed to compile with the following errors:
ERROR: 0:67: error(#143) Undeclared identifier: DirectionalLight
ERROR: 0:67: error(#202) No matching overloaded function found: DirectionalLight
ERROR: error(#273) 2 compilation errors. No code generated

- And, effectively, if I also copy "gliConfig.ini" in the exe directory, I have logs and shaders dump, that shows that the "DirectionalLight" method is missing in the fragment shader.

@realthunder :

- In SoShadowGroupP::setFragmentShader(), there must be a missing call to

"gen.addNamedFunction(SbName("lights/DirectionalLight"), FALSE);"

[realthunder]

@realthunder :

- In SoShadowGroupP::setFragmentShader(), there must be a missing call to

"gen.addNamedFunction(SbName("lights/DirectionalLight"), FALSE);"

It's work on my laptop. Are you using the upstream Coin3D or my fork?

[koin3D]

@realthunder :

- In SoShadowGroupP::setFragmentShader(), there must be a missing call to

"gen.addNamedFunction(SbName("lights/DirectionalLight"), FALSE);"

It's work on my laptop. Are you using the upstream Coin3D or my fork?

I have used the link provided by obelisk79 :
https://github.com/realthunder/FreeCAD/tree/LinkMerge/
Downloaded the sources, and done a full compilation, in debug mode

[realthunder]

I have used the link provided by obelisk79 :
https://github.com/realthunder/FreeCAD/tree/LinkMerge/
Downloaded the sources, and done a full compilation, in debug mode

But the shader error is reported from within libCoin. It should work with my fork of coin.