Type Alias VFXPostEffect

Fragment shader code or preset name to be applied as a post effect.
You can pass a preset name from ShaderPreset (e.g., "invert", "grayscale", "sepia")
or provide custom shader code.

The shader will receive the whole canvas as sampler2D src.

Standard uniforms available:

• sampler2D src: The input texture (rendered canvas)
• vec2 resolution: Canvas resolution in pixels
• vec2 offset: Offset values
• vec4 viewport: Viewport information
• float time: Time in seconds since VFX started
• vec2 mouse: Mouse position in pixels
• sampler2D backbuffer: Previous frame texture (if persistent is enabled)

Optional: shader and effect are mutually exclusive.
If both are present, effect takes precedence.

Custom uniform values to be passed to the post effect shader.
Works the same way as element uniforms.

Whether the post effect should persist across frames.
If enabled, the previous output is available as sampler2D backbuffer.

Use 32-bit floating point render target. (Default: false)

See GlslVersion.

Effect (or pipeline of effects) to apply in this post-effect slot.