only set changed glDepthRange values

2014-08-13 17:46:15 +02:00
parent 6ed3d67b62
commit bfd1281285
8 changed files with 21 additions and 11 deletions
--- a/src/renderer/painter.cpp
+++ b/src/renderer/painter.cpp
@@ -118,6 +118,14 @@ void Painter::depthMask(bool value) {
    }
 }

+void Painter::depthRange(const float near, const float far) {
+    if (gl_depthRange[0] != near || gl_depthRange[1] != far) {
+        glDepthRange(near, far);
+        gl_depthRange = {{ near, far }};
+    }
+}
+
+
 void Painter::changeMatrix() {
    // Initialize projection matrix
    matrix::ortho(projMatrix, 0, map.getState().getWidth(), map.getState().getHeight(), 0, 0, 1);