rendered backplate becomes blurry

[Armada01]

Hello,


I want to use a 360 panoramic image as my background.

I've made an emissive material with the image for color.

The material was then assigned to a cilinder (without caps) surrounding the scene.

In my viewport the image has good resolution, however , when I render, the image becomes blurry.

Any idea what can be the cause?

I've included a screen capture (partial) to demonstrate the difference between the render (left side) and the viewport.

[Micha]

Strange, looks like a motion blur effect. Are you using GPU rendering? Maybe the texture mode is in down sampling mode.

[Armada01]

yes, it was rendered with GPU. CPU gives normal outcome. Nevertheless strange that CPU messes with the image. Anyhow, that's solved. Thanks!

[georgi.georgiev]

Armada01

Could you please provide screenshots of the render settings for the GPU Textures parameter (Settings > Render Parameters) and the set up of the Bitmap texture?

[Armada01]

Hello Georgi,
.
When you ask about the set up of the bitmap texture, do you mean the general image properties? (In PS, it's identified as an 8 bits jpeg image, not a .bmp). In windows file properties, its says 24 bit depth (see image capture below)

[Armada01]

the bitmap in the material slot (emissive material FYI!) has standard settings, if that's what you're after.

color space = screen space.

[Micha]

Your large background image is downscaled to only 512 pixels. Try resize type "on-demand...".

[Armada01]

great, that worked! tx!