glPolygonOffset() bugs with lines
c++, lines, opengl
Solution
`GL_POLYGON_OFFSET_LINE` only works for polygon rendering with `glPolygonMode(GL_FRONT_AND_BACK, GL_LINE)`. If you're drawing primitives with `GL_LINES` it doesn't work. In this case you'll have to manually offset the vertices.
Problem
I have the following code: ``` glEnable(GL_POLYGON_OFFSET_LINE); glPolygonOffset(1,1); // or 40,40 etc... doesnt help at all ``` But the lines are still z-fighting, is this common bug or something...? My lines are 1.0f thick and i draw the lines last in the scene. Also i have disable GL_ALPHA_TEST and GL_LINE_SMOOTH and enabled GL_BLEND and GL_COLOR_LOGIC_OP Edit: i have already tried GL_POLYGON_OFFSET_FILL, it doesnt help.