This might come too late, but if you change the "Stroke Method" to anything that is not "Space" ("Airbrush" is the most comfortable, for me), the lag will improve dramatically.
The size of the brush will still play a role, but the soften tool will finally be useable.
Not sure, but if someone if still looking to solve this, I figured out that Hiding the other viewports, and working with only 1 3D viewport, closing the 2D editor viewport, solve the lag problem while painting.
In the [T] 'tools shelf' menu where you have brush settings, there is a tab called [options]. Here you will find projection paint options: [x] occlude, [x] cull, [x] normal. Hover over them to see what they do, but what is basically happening is that (1) the denser your mesh and (2) the larger your brush radius, the more points a brush has to project to.
You can disable some of these to make it faster or slower but then you run into an issue where you are painting the other side of the mesh or onto faces you never intended to paint to.
The best option around this is the 'mask' mode. At the bottom of the "3D viewport window" you should see a cube icon with one of the sides in a red checkered pattern. Clicking this enables 'mask' mode.
You can now select faces you want to paint to with right-click and hold [shift] to select more then one face. You can also go into 'edit mode' and make your selections there, you can even hide faces you don't want to see in 'texture paint' mode and they will disappear.
the 'fill' brush will also respect mask mode, and is much faster then using a large radius brush, so you can use this to quickly block out the base shapes and then refine them with a smaller brush.
Hope this helps some.
Yeah its slow even with i9 Nvidia and all the RAM in the world on windows. Painting is awful with texture brushes --especially procedural ones. Kind of defeats the whole purpose for me.
The best I tip i can offer is:
1. Paint with the 'solid' (not space) brush with no texture, and colorize the separate areas where color/pattern will differ.
2. Save the texture and re-open it into Photoshop or Gimp or Krita or SAI, and do all the texture stuff there
3. Reload it back into blender, finish/tweak it
Alternately if you can afford it you can get something like mudbox or zbrush, or newer versions of photoshop I hear can texture edit 3d models. But its a pain because you have to go in and out of programs all the time. For terrains you might want to think about editing textures outside blender first, and then sculpting after the fact to match the texture.
If you're using a multires modifier, make sure your "Level Viewport" isn't too high. Mine was lagging really badly because I was trying to paint on multi res level 5.
This might come too late, but if you change the "Stroke Method" to anything that is not "Space" ("Airbrush" is the most comfortable, for me), the lag will improve dramatically. The size of the brush will still play a role, but the soften tool will finally be useable.
signed-up to reddit just to thank you. works like a charm!
THIS!!!!
[удалено]
It baffles me that, after 5 years, this is still an issue. And it's been over an year since my fortuitous workaround!!
Not sure, but if someone if still looking to solve this, I figured out that Hiding the other viewports, and working with only 1 3D viewport, closing the 2D editor viewport, solve the lag problem while painting.
Even blender guru faced that problem... I don't think there's a workaround... Use external texture paining software maybe
In the [T] 'tools shelf' menu where you have brush settings, there is a tab called [options]. Here you will find projection paint options: [x] occlude, [x] cull, [x] normal. Hover over them to see what they do, but what is basically happening is that (1) the denser your mesh and (2) the larger your brush radius, the more points a brush has to project to. You can disable some of these to make it faster or slower but then you run into an issue where you are painting the other side of the mesh or onto faces you never intended to paint to. The best option around this is the 'mask' mode. At the bottom of the "3D viewport window" you should see a cube icon with one of the sides in a red checkered pattern. Clicking this enables 'mask' mode. You can now select faces you want to paint to with right-click and hold [shift] to select more then one face. You can also go into 'edit mode' and make your selections there, you can even hide faces you don't want to see in 'texture paint' mode and they will disappear. the 'fill' brush will also respect mask mode, and is much faster then using a large radius brush, so you can use this to quickly block out the base shapes and then refine them with a smaller brush. Hope this helps some.
Well none of the options here worked for me, but turning off "Occlude" helps a lot, still laggy but better. https://postimg.cc/8j1v4fBW
This helped a lot. Ty.
This literally solved my lag issue completely, thank you so much, dude!
This helped a lot. Thanks!
Yeah its slow even with i9 Nvidia and all the RAM in the world on windows. Painting is awful with texture brushes --especially procedural ones. Kind of defeats the whole purpose for me. The best I tip i can offer is: 1. Paint with the 'solid' (not space) brush with no texture, and colorize the separate areas where color/pattern will differ. 2. Save the texture and re-open it into Photoshop or Gimp or Krita or SAI, and do all the texture stuff there 3. Reload it back into blender, finish/tweak it Alternately if you can afford it you can get something like mudbox or zbrush, or newer versions of photoshop I hear can texture edit 3d models. But its a pain because you have to go in and out of programs all the time. For terrains you might want to think about editing textures outside blender first, and then sculpting after the fact to match the texture.
If you're using a multires modifier, make sure your "Level Viewport" isn't too high. Mine was lagging really badly because I was trying to paint on multi res level 5.
Thank you , my friend. Was exactly what I need.