X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=vrfileman;a=blobdiff_plain;f=src%2Fbackdrop.cc;h=2a11c9723f07754d0a65d5f05d27f3c093fed47d;hp=91c709a0cdd90b1866a01a40f072b839ba805e27;hb=f19edacadfd124dae0d6666a86fb1b6ca4df8969;hpb=818d6e49d86bc91748396a8c408cd84d17e10994

diff --git a/src/backdrop.cc b/src/backdrop.cc
index 91c709a..2a11c97 100644
--- a/src/backdrop.cc
+++ b/src/backdrop.cc
@@ -14,10 +14,12 @@ static Texture *tex_grid;
 static Mesh *mesh_skydome;
 static unsigned int sdr_skydome;
 
+static Vec3 grid_color;
+static int uloc_grid_color;
 
 bool init_backdrop()
 {
-	Vec3 grid_color = color(1.0, 0.07, 1.0);
+	grid_color = color(1.0, 0.07, 1.0);
 	Vec3 mid_color = color(0.133, 0.006, 0.612);
 	Vec3 horiz_color = color(0.612, 0.006, 1.0);
 	Vec3 zenith_color = color(0.029, 0.029, 0.029);
@@ -26,6 +28,7 @@ bool init_backdrop()
 	if(!(sdr_grid = create_program_load("sdr/grid.v.glsl", "sdr/grid.p.glsl"))) {
 		return false;
 	}
+	uloc_grid_color = get_uniform_loc(sdr_grid, "grid_color");
 	set_uniform_float3(sdr_grid, "grid_color", grid_color.x, grid_color.y, grid_color.z);
 	set_uniform_float3(sdr_grid, "fog_color", fog_color.x, fog_color.y, fog_color.z);
 
@@ -84,6 +87,8 @@ void draw_backdrop()
 	glMultMatrixf(xform[0]);
 
 	bind_program(sdr_grid);
+	float pulse = 1.0 + sin(time_sec * 3.0) * 0.25;
+	glUniform3f(uloc_grid_color, grid_color.x * pulse, grid_color.y * pulse, grid_color.z * pulse);
 	bind_texture(tex_grid);
 
 	glBegin(GL_QUADS);