Update depth buffer resolution

[grits] / src / grits-opengl.c

diff --git a/src/grits-opengl.c b/src/grits-opengl.c
index 2bd00822cea22ace1b4776aba045d3cf6ac2f909..9fbe461fd6cecdf988b44bd164ba651013d9d8bf 100644 (file)
--- a/src/grits-opengl.c
+++ b/src/grits-opengl.c
@@ -73,9 +73,9 @@ static void _set_projection(GritsOpenGL *opengl)
        double width  = alloc.width;
        double height = alloc.height;
        double ang    = atan((height/2)/FOV_DIST)*2;
-       double atmos  = 100000;
-       double near   = MAX(elev*0.75 - atmos, 50); // View 100km of atmosphere
-       double far    = elev + 2*EARTH_R + atmos;   // on both sides of the earth
+       double atmos  = 10000;
+       double near   = MAX(elev*0.75 - atmos, 50);  // View 100km of atmosphere
+       double far    = elev + EARTH_R*1.25 + atmos; // a bit past the cenrt of the earth
 
        glViewport(0, 0, width, height);
        gluPerspective(rad2deg(ang), width/height, near, far);