some prb examples

1 files changed, 19 insertions, 0 deletions

diff --git a/pbr/2.1.1.ibl_irradiance_conversion/background.vert b/pbr/2.1.1.ibl_irradiance_conversion/background.vert
new file mode 100644
index 0000000..25b9778
--- /dev/null
+++ b/pbr/2.1.1.ibl_irradiance_conversion/background.vert
@@ -0,0 +1,19 @@
+#version 330 core
+
+layout(location = 0) in vec3 position;
+
+out vert_t {
+	vec3 position;
+} vert;
+
+uniform mat4 projection;
+uniform mat4 view;
+
+void main(void)
+{
+	vert.position = position;
+	
+	mat4 rotate_view = mat4(mat3(view));
+	vec4 clip_position = projection * rotate_view * vec4(position, 1.0);
+	gl_Position = clip_position.xyww;
+}