2D depth sorting

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@ThisIsJAVA

I’ve been messing around with stencil writing a bit and I think you misunderstood how I render my final scene (or I still don’t get stencil afterall )

It can be

@ThisIsJAVA

So if I do what you suggest then I’d first draw my diffuse scene to the FBO while filling the stencil buffer.
This way I’d get a stencil buffer full of 0’s everywhere excpect at the player’s position where it would be 1’s.

So when I render my final scene combining the 2 FBO textures I use a 3rd FBO to draw it to.
If I use the glStencilFunc(GL_EQUAL, 0, 0xFF); that means I only draw a pixel where the stencil value is 0 and since the player has a value of 1 it will not be drawn at all.

The main problem here is that I don’t just render the shadows over the scene, I create a completely new one based on the diffuse and normal FBO textures.

This is why I asked you how you render the final scene.

The best would be to render the shadows over the scene in one passage by blending, otherwise you need two steps, one for merging the inputs textures (shadows and scene) as you do it already only for stencil == 0, that is everywhere except the player. And another one for merging (but actually you’d render only the player itself) the inputs texture only for stencil == 1.

Small tip: switching FBOs is the most expensive operation, if you have perf issues, you should consider just switching color attachments