PNGs shown aliased when small-sized

[Carlos]

Hey there!

I have a bunch of logos from the sponsors of my show, and they show like if they were aliased when the rectangle on which I apply them as texture is small.

I've rendered them on 1920x1080 so I had no troubles showing them on full screen size, and when I size up the rectangles, they look just fine.

Do you know how I can solve this?

Thank you in advance!

[Christian Krix Schmidt]

Do you use the Advanced Image Loader to load the PNG image? Or the regular Image Loader? If you use an Advanced Image Loader, make sure the GenMipMaps property is On in the Adv Image Loader node.

You could try adjusting the MipMap Level. I do that quite regularly. Go to the Texture node and under the Advanced category in the Property Editor, adjust the MipMapLODBias. That value let's you seamlessly scrub through all MipMap levels of a texture.

[Stefan Goerke]

The quality of automatic generated MipMaps in Ventuz depends on the image resolution. If the image width and height is a factor of two your graphic card can process it in a better way. Also your graphic card model and driver settings can have an effect of the result.

It is also possible to crate MipMaps outside Ventuz. Therefor you can use the DDS plugin for Photoshop und save the MipMaps inside the .dds file.

http://developer.nvidia.com/nvidia-text ... -photoshop

Best regards,
Stefan