Object Mode Engine: New grid drawing.

Move the grid drawing to the Object mode engine and implement a new infinite grid.
Everything is done but it needs better parameters to be intuitive.

1 files changed, 19 insertions, 0 deletions

diff --git a/source/blender/draw/modes/shaders/object_grid_vert.glsl b/source/blender/draw/modes/shaders/object_grid_vert.glsl
new file mode 100644
index 00000000000..ef457c01284
--- /dev/null
+++ b/source/blender/draw/modes/shaders/object_grid_vert.glsl
@@ -0,0 +1,19 @@
+
+/* Infinite grid
+ * Clément Foucault */
+
+uniform mat4 ViewProjectionMatrix;
+uniform mat4 ViewMatrix;
+
+in vec3 pos;
+
+out vec3 wPos;
+out float viewDist;
+
+void main()
+{
+	vec3 realPos = pos * 1e3;
+	gl_Position = ViewProjectionMatrix * vec4(realPos, 1.0);
+	viewDist = -(ViewMatrix * vec4(realPos, 1.0)).z;
+	wPos = realPos;
+}