POV-Ray Tips: Animation

prev index next	Animation
POV-Ray Tips, Tricks, and Techniques	Crossfade from One Image Map to Another?


Dennis Miller writes:		I would like to map a tga file onto a sphere (no problem), then have it disappear and a second tga file fade in as the first fades-out. I can't seem to find a way to do the fade out since there is no option in the image map to make it transparent over time. Nor can I use the lights since I want the second one to show up as the first appears. Anyone have an idea how to implement this type of crossfade?
Chris Colefax answers, then has second thoughts:		CORRECTION! I realised as soon as I posted the original reply that it would be possible to use the TGA images; instead of using layered textures you can use averaged pigments, eg: `sphere {<0, 0, 0>, 1` `pigment {average pigment_map {` `[1 - clock image_map {tga "image1.tga" map_type 1}]` `[clock image_map {tga "image2.tga" map_type 1}]}` `}` where, once again, image1 is the first image you want to see, and image2 is the image you want to fade to.