shader_vertexPosition 0
shader_vertexUV 1
shader_vertexNormal 2
shader_vertexColor 3

shader_MVP 0
shader_width 1
shader_height 2
shader_angle 3
shader_aspect 4
shader_lightDirection 5
shader_lightType 6
shader_cameraPosition 7
shader_reflections 8
shader_pixelHalfConeAngle 9
shader_bitsPerChannel 10
shader_bitsPerTree 11
shader_invMVP 12

shader_textColor 0
shader_max_level 12
shader_extent 600.0