shuvit/assets/materials/builtins/water0/water.vs

attribute vec4 Tangent;
varying vec4 fragPos;
varying vec3 T, B, N; //tangent binormal normal
varying vec3 viewPos, worldPos;
varying float timer;
uniform mat4 ModelMatrix;

mat3 m3( mat4 m )
{
	mat3 result;

	result[0][0] = m[0][0];
	result[0][1] = m[0][1];
	result[0][2] = m[0][2];

	result[1][0] = m[1][0];
	result[1][1] = m[1][1];
	result[1][2] = m[1][2];

	result[2][0] = m[2][0];
	result[2][1] = m[2][1];
	result[2][2] = m[2][2];

	return result;
}

void main()
{
    gl_TexCoord[0] = gl_MultiTexCoord0;
	vec3 pos = vec3(gl_Vertex);

	T   = m3(ModelMatrix)*Tangent.xyz;
	B   = m3(ModelMatrix)*cross(gl_Normal, Tangent.xyz);
	N   = m3(ModelMatrix)*gl_Normal;

    worldPos = vec3(ModelMatrix*gl_Vertex);
    fragPos = ftransform();
    viewPos = pos - m3(ModelMatrix)*gl_ModelViewMatrixInverse[3].xyz;
    gl_Position = ftransform();
    //timer = gl_Color.r*2.0;
}