Method NewMaterial

loader/collada/material.go:39–72

NewMaterial creates and returns a pointer to a new material from the specified material id/url in the dom

(id string)

// NewMaterial creates and returns a pointer to a new material
// from the specified material id/url in the dom
func (d *Decoder) NewMaterial(id string) (material.IMaterial, error) {

	id = strings.TrimPrefix(id, "#")
	// Looks for material with specified id
	mat := findMaterial(&d.dom, id)
	if mat == nil {
		return nil, fmt.Errorf("Material id:%s not found", id)
	}

	// Looks for associated effect
	effect := findEffect(&d.dom, mat.InstanceEffect.Url)
	if effect == nil {
		return nil, fmt.Errorf("Effect id:%s not found", mat.InstanceEffect.Url)
	}

	// Looks for ProfileCOMMON
	pc := findProfileCOMMON(effect)
	if pc == nil {
		return nil, fmt.Errorf("ProfileCOMMON not found")
	}

	switch se := pc.Technique.ShaderElement.(type) {
	case *Blinn:
		return d.newBlinnMaterial(se)
	case *Constant:
		return d.newConstantMaterial(se)
	case *Lambert:
		return d.newLambertMaterial(se)
	case *Phong:
		return d.newPhongMaterial(se)
	default:
		return nil, fmt.Errorf("Invalid shader element")
	}
}

// GetTexture2D returns a pointer to an instance of the Texture2D
// with the specified id in the Collada document and an error.