I am attempting to make a new overlay for Celestia-ED. I have a PNG image that will appear on the screen when overlay is enabled, but there are no transparent areas.
How is the transparent area defined?
Is there a specific RGB value needed for a transparent area?[/img]
PNG Transperancy problems
PNG Transperancy problems
System:
Windows: Windows XP5.1
Memory (RAM): 512 MB
CPU Info: AMD Athlon(tm) 64 Processor 3200+
CPU Speed: 783.3 MHz
Display Adapters: NVIDIA GeForce FX 5200
Windows: Windows XP5.1
Memory (RAM): 512 MB
CPU Info: AMD Athlon(tm) 64 Processor 3200+
CPU Speed: 783.3 MHz
Display Adapters: NVIDIA GeForce FX 5200
There's no need to post the same message more than once. If a response seems to be slow in coming, you just need to be patient. (I'll delete the other one.)
Transparency is controlled by the Alpha channel in the image file: RGBA = Red, Green Blue, Alpha. Think of it as an Opacity channel. You can use either a paint program or an image manipulation utility package like ImageMagick to create and insert the Alpha channel.
Transparency is controlled by the Alpha channel in the image file: RGBA = Red, Green Blue, Alpha. Think of it as an Opacity channel. You can use either a paint program or an image manipulation utility package like ImageMagick to create and insert the Alpha channel.
Selden
