a

1 files changed, 23 insertions, 0 deletions

diff --git a/assets/shaders/2d.vsh b/assets/shaders/2d.vsh
new file mode 100644
index 0000000..7701087
--- /dev/null
+++ b/assets/shaders/2d.vsh
@@ -0,0 +1,23 @@
+#version 150
+
+in vec2 in_pos;
+in vec2 in_texcoord;
+in vec4 in_col;
+
+out vec2 g_texcoord;
+out vec4 g_color;
+
+uniform vec4 g_screenratio;
+
+void main() {
+  vec2 halfscreen = vec2( 1.0 / g_screenratio[0], 1.0 / g_screenratio[1] );
+
+  vec4 pos = vec4( in_pos.x, in_pos.y, 1, 1 );
+  pos[0] -= halfscreen[0];
+  pos[1] -= halfscreen[1];
+  pos[1] *= -1.0;
+
+	gl_Position = ( pos ) * g_screenratio;
+	g_texcoord = in_texcoord;
+	g_color = in_col;
+}