sampler2D iFragData[6]; mat4 iModelViewProjection; mat4 iModelView; mat4 iProjection; mat4 iInverseModelViewProjection; mat4 iInverseModelView; mat4 iInverseProjection; mat4 iControllerTransform[2]; // [Left, Right] vec4 iControllerVelocity[2]; vec4 iControllerButtons[2]; float iTime; float iTimeDelta; int iFrame; ivec2 iSize; ivec2 iResolution;