Module for Renpy to allow for distorting images and text with wavey effects
This is a follow up to my WaveRendering module from a year ago. This time using a shader to achieve the wave effects, making it less CPU dependant and more stable as a result.
As usual for my projects, you simply need to take the wave_shader.rpy and put it in the game folder (or subfolder of it) of your project to have the code needed to run it. I've also included a wavey_tag.rpy as well if you would want to apply it as a text tag. Examples for how to use it can be found in the demo project's script.
Note: You will need kinetic_text_tags.rpy in order for wavey_tag.rpy to work.
The main way I have it setup to make it easy to add the shader is by using the function statement in ATL to have a function that sets up the transform and applies all the parameters for you. This is done by using my WaveShader class, which has a __call__ function, so that when ATL tries to use it as a function, it can handle the transform. That said, the shader can be applied by yourself manually, but you'll have to instantiate the uniform parameters for the shader yourself. From there, it updates u_shader_time itself using the animation_time parameter that ATL provides to the function, which allows it up update smoothly. The advance_time function is something I plan on using if I develop further shaders so that all of them can piggyback off of it and all use it for their time updates.
Because this function has to keep updating the shader time, it will never pass control onto ATL code below it. So if you want to apply the WaveShader and do some other ATL, I recommend you split it up into parallel blocks. Such as:
show my_image:
parallel:
# Your ATL
parallel:
function WaveShader()
This should avoid most issues you might be having, unless you're using another shader on the displayable, in which case you may want to override this behavior. Though, if you're using other shaders, I assume you probably already know what you're doing. If I ever make more though, I'll be sure to include how to make them work together, if it would make sense to do so.
- The team behind Minotaur Hotel for being cool with me using their sprite for demo purposes. Check 'em out at https://minoh.itch.io/minotaur-hotel
- Deep-fold for his pixel art space background generator.
- Earthbound backgrounds copyrighted to Nintendo. Please don't sue.