uniform mat4 g_WorldViewProjectionMatrix;
uniform mat4 g_WorldMatrix;

in vec3 inPosition;
in vec3 inNormal;

out vec3 vWorldPos;
out vec3 vNormal;

void main() {
    vec4 worldPos4 = g_WorldMatrix * vec4(inPosition, 1.0);
    mat3 worldMat3 = mat3(g_WorldMatrix);
    vWorldPos = worldPos4.xyz;
    vNormal   = normalize(worldMat3 * inNormal);
    gl_Position = g_WorldViewProjectionMatrix * vec4(inPosition, 1.0);
}