Default vertex shader

//uniform mat4 projectionMatrix;
//uniform mat4 viewMatrix;
//uniform mat4 modelMatrix;

uniform vec2 u_resolution;  // screen size (px) {width, height}
uniform vec2 u_mouse;       // mouse cursor position (px) {x, y}
uniform float u_time;       // time in milliseconds since the beginning
uniform float u_deltaTime;  // time in milliseconds since the last frame

//attribute vec3 position;
//attribute vec2 uv;

varying vec2 vUV;

void main() {
    vec4 modelPosition = modelMatrix * vec4(position, 1.0);
    vec4 viewPosition = viewMatrix * modelPosition;
    vec4 projectedPosition = projectionMatrix * viewPosition;

    gl_Position = projectedPosition;
    //gl_Position = projectionMatrix * viewMatrix * modelMatrix * vec4(position, 1.0);

    vUV = uv;
}