Vertex Mesh Rotator

Shader that rotates the vertex and normals of a mesh using the matrices rotations functions to move in XYZ, also works with a custom pivot

Shader code

shader_type spatial;
render_mode cull_disabled;



uniform float x;
uniform float y;
uniform float z;



uniform sampler2D albedo: hint_albedo;



mat3 rotateX(float theta)
{
	
	float cosa = cos(theta);
	float sina = sin(theta);

 
    //Y rotation	
	mat3 rotate_x  = mat3(
	   vec3(1.0, 0.0, 0.0),
	   vec3(0.0, cosa, -sina),
	   vec3(0.0, sina, cosa)
	);
	
	return rotate_x;
}





mat3 rotateY(float theta)
{
	
	float cosa = cos(theta);
	float sina = sin(theta);

 
    //Y rotation	
	mat3 rotate_y  = mat3(
	   vec3(cosa, 0.0, sina),
	   vec3(0.0, 1.0, 0.0),
	   vec3(-sina, 0.0, cosa)
	);
	
	return rotate_y;
}



mat3 rotateZ(float theta)
{
	
	float cosa = cos(theta);
	float sina = sin(theta);

 
    //Y rotation	
	mat3 rotate_z  = mat3(
	   vec3(cosa,-sina, 0.0),
	   vec3(sina, cosa, 0.0),
	   vec3(0.0, 0.0, 1.0)
	);
	
	return rotate_z;
}


void vertex()
{


	mat3 rotation_matrix =  rotateX(x) * rotateY(y) * rotateZ(z);
	vec3 rotated_vertex =  rotation_matrix * VERTEX;
	vec3 rotated_normals =  rotation_matrix * NORMAL;

	VERTEX =  rotated_vertex;
	NORMAL =  rotated_normals;
	

}

void fragment()
{
	ALBEDO = texture(albedo, UV).rgb;	
	
}

Tags