protot/data/shaders/fs_simpletexture.glsl

#version 330 core

in vec2 ioUV;

out vec3 outColor;

uniform sampler2D uTexture;
uniform float uTime;

void main() {
	outColor = texture(uTexture, 
			ioUV 
			+ 0.01 * vec2(
				sin(uTime + 1024.0 * ioUV.x),
				cos(uTime + 768.0  * ioUV.y)
				)
			).xyz;
}