func NewShader(isvert bool) *Shader {
type_ := gl.GLenum(gl.FRAGMENT_SHADER)
if isvert {
type_ = gl.GLenum(gl.VERTEX_SHADER)
}
id := gl.CreateShader(type_)
sh := &Shader{id, isvert}
return sh
}
func (p *Program) UniformTexture_(name string, t ITexture, activeTexture int) {
gl.ActiveTexture(gl.GLenum(activeTexture))
t.Id().Bind(gl.TEXTURE_2D)
p.UniformInt(name, activeTexture-int(gl.TEXTURE0))
}