There is http://www.povray.org/ which renders 3D pictures and animations similarly to Blender, except that instead of having an editor, you describe the shapes by equations.
Like, you can specify that a cube is at some coordinates, scaled and rotated depending on the time variable, and conditional on time being greater than some value, another cube exists, etc.
If the animation you want to make is simple from the mathematical perspective, you could either write the code that animates the shapes, or alternatively you could write a script in your favorite language that would animate the shapes and output recipes for rendering static pictures for individual frames.
There is http://www.povray.org/ which renders 3D pictures and animations similarly to Blender, except that instead of having an editor, you describe the shapes by equations.
Like, you can specify that a cube is at some coordinates, scaled and rotated depending on the time variable, and conditional on time being greater than some value, another cube exists, etc.
If the animation you want to make is simple from the mathematical perspective, you could either write the code that animates the shapes, or alternatively you could write a script in your favorite language that would animate the shapes and output recipes for rendering static pictures for individual frames.
Recently I saw a video about shadertoy.com. I think the two websites are similar.
Boom! That is exactly the kind of thing I needed. Thank you!