I originally wrote this 8/2019. Because it felt so negative I never posted it.
But maybe some feedback like this could be insightful so here we go
This is a first-time-user experience. (Even though I've tried tg2 and 3 a couple of times before. I was a very active 0.x user back in the day)
I think what could hold back new users is not so much the difficulty, but more the user experience.
These are all the problems I encountered while creating the attached render:
The program seems to have many small bugs and annoyances. Raytracing preview seems to have several glitches. But also normal preview can say 'finished rendering' while it's still at detail 5. All I know to do then is change a value to make it preview again.
Switching the main tab always restarts the preview. I am missing a 'same 3D preview for all tabs' checkbox.
Trying to move the camera using the mouse is very erratic and tilts the horizon for reasons unknown to me, and thus is unusable. And every time I change the view, the camera switches to 'perspective view'. So again and again I have to click 'copy to current render camera'. Why can't we just live change the render camera? My view was also gone after a 'save+exit'. 'Make new camera from current view' would also be very helpful.
Enviro light controls do not seem to do anything in Ray Traced Preview, only in normal preview. But when rendering, the result is again different.. The clouds in the render reflect way more than in the preview.
Also several times I changed values of something and nothing happened, until I found out I had to enable a checkbox first. It can't be that hard to gray out settings when they're disabled? Or give a warning, anything.
Sliders can't be reset to default. Also there is no snapping to fixed values. You can't slide a value back to 1 for example. It becomes 1,000003462 or something.
Atmospheric controls are all interlinked. If I want to change the atmospheric red, other sliders also change, which makes it impossible to get the effect I'm after. I ended up making the sun orange instead. This might be an important reason why most TG4 renders I see are generally 'boring' mid-of-day scenes. (Sorry I'm being really harsh here!
)
To create a simple mist or haze layer you can only use clouds it seems. There isn't really an other option to add mist to a scene. Which is weird because this makes a 'misty cave' or strong sunrays a really hard - and CPU intensive - task.
At last, it surprises me how incomplete the documentation is. This is version 4, and still there is loads of info missing. Cirrus clouds? Render settings? I mean, it can't be that hard to at least explain what settings and checkboxes do after you've put so much effort into programming it?..
I really want to like the program, but I'm not sure if I ever can
With love
,
Michiel (MDB)