Actually it is only possible to pass float properties to a 2D filter (GLSL fragment shader). This patch allows also to use integer properties for the 2D filter. Reviewers: sybren, agoose77, kupoman, moguri, lordloki, panzergame Reviewed By: lordloki, panzergame Projects: #game_engine Differential Revision: https://developer.blender.org/D1370