Bad quality Baked Textures | Render-To-Texture

[a_bolog]

I finally found out what the is happening and why my baking was so unpredictable.

I've tried to explain it in the screenshots.

Can any forgotten angel help me escape my misery? It took me ages to narrow it down to this and I have no idea how to fix it.

[romullus]

Oh wow, that looks like serious bug. Moving topic to bug reporting board.

[maru]

Confirmed and logged.
Workaround: lower the blur parameter of your bitmap node in the material editor.

(Internal ID=546685745)

[a_bolog]

Confirmed and logged.
Workaround: lower the blur parameter of your bitmap node in the material editor.

(Internal ID=546685745)

I've started using OSL bitmap node, and there is no blur parameter in the bitmap... How could I go around it?
Is there a way to globally disable blur for all corona rendering?

[maru]

Confirmed and logged.
Workaround: lower the blur parameter of your bitmap node in the material editor.

(Internal ID=546685745)

I've started using OSL bitmap node, and there is no blur parameter in the bitmap... How could I go around it?
Is there a way to globally disable blur for all corona rendering?

Yes, you have to enable development/experimental stuff rollout first (https://coronarenderer.freshdesk.com/support/solutions/articles/12000021288) and then switch "texmap filtering" to "none". But this will most likely give you some headaches because all textures will become pixelated.

[a_bolog]

Tried. Doesn't work. I think OSL uses Default Max Bitmap Filtering, I don't understand...

Atm, I'm positioning the viewport camera very close to the mesh and then bake

[cjwidd]

Yes, I too need to understand how to do this - how to adjust bitmap filtering / interpolation for OSL bitmaps / shaders?

[pokoy]

There is a filtering option in OSL but it's not exposed, although requested in beta... this request should go straight to Autodesk, the thing they are missing badly is production experience.

[cjwidd]

Hmm, thanks @pokoy

I see - that is disappointing. If any Coronauts know a workaround, please say so.

[Aram Avetisyan]

I finally found out what the is happening and why my baking was so unpredictable.

I've tried to explain it in the screenshots.

Can any forgotten angel help me escape my misery? It took me ages to narrow it down to this and I have no idea how to fix it.

Hi,

Have you tried baking the texture using Bake to Texture instead?
For my experience, in some cases Bake to Texture worked and worked more expected then Render to texture.