Ogre Forums

I'm having fairly simple material with alpha_blend, and after updating from 13.6.5 to 14.0.0 (14.2.6 also have this issue) my rendering became different, it seems that more transparent geometry is rendered now.
Here's old and new rendering:


This fog of war is rendered with created geometry and two geometry layers with non-transparent and partially transparent textures (single geometry and single dds texture is used) and whenever those overlap aplha blending becomes off.

I'm using non-modified RTShaderLib from Ogre/Media, RTShaderSystem/OgreShaderGenerator, GL3Plus render system on MacOS.
Material:

material FogBase
{
	technique
	{
		pass
		{
			lighting off
			depth_check off
			depth_write off
			scene_blend alpha_blend

			texture_unit Tex
			{
				tex_address_mode clamp
				texture AllFogs.dds 2d 1
				tex_coord_set 0
			}
		}
	}
}

Note: Terrain lost its shadows, and those are also rendered with scene_blend alpha_blend

Any ideas how to debug it further?

are you also using specific render queues? If so it might be this:
https://github.com/OGRECave/ogre/blob/m ... nder-queue

otherwise try inspecting the rendering with renderdoc, if you are using a compatible rendersystem.

That was render queues, thank you. I moved the order a bit and everything is back to normal.

altren wrote: Mon Sep 02, 2024 8:26 pm

That was render queues, thank you. I moved the order a bit and everything is back to normal.

out of curiosity? Do you deploy your game to the web? And is it available somewhere?

You can try it there. http://tfw-webclient.s3.amazonaws.com/c ... Wilds.html
Registration is broken, but you can play as guest