Method RenderSetup

graphic/mesh.go:89–111

RenderSetup is called by the engine before drawing the mesh geometry It is responsible to updating the current shader uniforms with the model matrices.

(gs *gls.GLS, rinfo *core.RenderInfo)

// It is responsible to updating the current shader uniforms with
// the model matrices.
func (m *Mesh) RenderSetup(gs *gls.GLS, rinfo *core.RenderInfo) {

	// Transfer uniform for model matrix
	mm := m.ModelMatrix()
	location := m.uniMm.Location(gs)
	gs.UniformMatrix4fv(location, 1, false, &mm[0])

	// Transfer uniform for model view matrix
	mvm := m.ModelViewMatrix()
	location = m.uniMVm.Location(gs)
	gs.UniformMatrix4fv(location, 1, false, &mvm[0])

	// Transfer uniform for model view projection matrix
	mvpm := m.ModelViewProjectionMatrix()
	location = m.uniMVPm.Location(gs)
	gs.UniformMatrix4fv(location, 1, false, &mvpm[0])

	// Calculates normal matrix and transfer uniform
	var nm math32.Matrix3
	nm.GetNormalMatrix(mvm)
	location = m.uniNm.Location(gs)
	gs.UniformMatrix3fv(location, 1, false, &nm[0])
}