New Renderer (OpenGL 3.3)

Thanks all for the positive feedback!

@Freestalker:
1.: I use a variation of valve’s ss bumps. They are in tangent space and have more light directions baked in (I did not write the tool which generates them). So you need a height map and normal map and get a new normal map. Additionally I use parallax mapping so you need height maps too. Keep in mind that this is the current state and might change when I have fixed the errors and start experimenting again. Also you can use just normal maps without height maps or no additional maps at all. It is all supported. And yes I created my own height maps, which took quite some time and which is why I don’t have many of them.
2.: The fps where intentionally limited to 30fps because of the video recording. This way it is way more fluid.
With my radeon 270x I get at this scene around 100fps. This is with 2 lights casting shadows, so the scene is actually rendered 3 times. I have optimized a lot of the draw calls but I did not finish all cases yet, so there is still stuff which reduces fps and will be fixed. Also I will let you choose how many lights cast shadows so you can limit it to 1 or none at all.
3.: I am assuming you mean using the calibration file of the monitor to get a good colour reproduction. I have a pretty good calibrated IPS Display (Dell u2515h) so I will think about it since I might notice a difference. But I need to do some research how this can be implemented with OpenGL. I have only read about gamma values and doing gamma correction in the shaders for now.

Thanks adoxa for the offsets. Since I create the window myself I don’t even need them (at least I think so). Of course that does not apply to regular FL without the wrapper. Maybe one should add those to the “Limit Breaking 101” site?

In the meantime here is a screenshot from my latest version:

I just thought it looked nice. Might be a nice desktop background or so.

Good idea!

Here is it without the HUD:

And, since besides nicer shadows not much is going to change visually (I have ideas, but better no promises), here is a version without the wrapper for an early before / after comparison:

I am not sure I follow. Oiled as in covered in oil?

I think it looks better when you see it in movement, yes. More like a new game.

There is no material system, yet. The shader supports it, but it has the same value for every material. Also I am not sure whether I keep the current lighting model or choose a different one.

I plan to write a material editor with a preview. You will be able to set for every texture metalness, smoothness and specular intensity (that is for the currently used lighting model). So it can look like plastic, metal or in between. Also if this is not enough I can add every map you wish (specular maps etc), this is easy. But I don’t want to use a model no one is able to set the parameters for, because you need to measure them or they are too many.

In case I am able to render the whole scene to a cubemap or at least the starspheres, I could use image based lighting to get good metal reflections. But for now I am not able to do that. I will get to it when the rest is working.

My hope is, that with the possibility of better models / textures people will make those. Now it does not make much sense, but with the wrapper this changes. It is more like the chicken-and-egg problem.

Thanks for the good feedback, this is really helping me a lot!

I noticed one shader had old settings. Textures with only normal maps were not so smooth and reflected with a larger radius (that did not apply to the tanks, but e.g. to those towers with windows). You can see the effect for all materials in the second pair of screenshots below.

Here are a few examples of the settings:

Same settings, full specular intensity:

Same settings, half specular intensity:

Less smoothness, full specular intensity:

Less smoothness, half specular intensity:

Update: Sorry, found an error in the lighting equation Images have changed.