initial commit

1 files changed, 27 insertions, 0 deletions

diff --git a/geometry_shader/shaders/base.gs b/geometry_shader/shaders/base.gs
new file mode 100644
index 0000000..6b140c5
--- /dev/null
+++ b/geometry_shader/shaders/base.gs
@@ -0,0 +1,27 @@
+#version 330 core
+layout(points) in;
+layout(triangle_strip, max_vertices = 5) out;
+
+in VS_OUT {
+    vec3 color;
+} gs_in[];
+
+out vec3 fcolor;
+
+void
+main(void)
+{
+    fcolor = gs_in[0].color;
+    gl_Position = gl_in[0].gl_Position+vec4(-0.2, -0.2, 0.0, 0.0);
+    EmitVertex();
+    gl_Position = gl_in[0].gl_Position+vec4(0.2, -0.2, 0.0, 0.0);
+    EmitVertex();
+    gl_Position = gl_in[0].gl_Position+vec4(-0.2, 0.2, 0.0, 0.0);
+    EmitVertex();
+    gl_Position = gl_in[0].gl_Position+vec4(0.2, 0.2, 0.0, 0.0);
+    EmitVertex();
+    fcolor = vec3(1.0, 1.0, 1.0);
+    gl_Position = gl_in[0].gl_Position+vec4(0.0, 0.4, 0.0, 0.0);
+    EmitVertex();
+    EndPrimitive();
+}