PBR checkpoint

[opengl.git] / equirectangularvert.glsl

diff --git a/equirectangularvert.glsl b/equirectangularvert.glsl
new file mode 100644 (file)
index 0000000..dd21661
--- /dev/null
+++ b/equirectangularvert.glsl
@@ -0,0 +1,15 @@
+#version 330
+
+in vec3 pos;
+out vec3 localPos;
+
+uniform mat4 projection;
+uniform mat4 view;
+
+void main() {
+       localPos = pos;
+       // flip image
+       localPos.y = -localPos.y;
+       vec4 fragPos = projection * view * vec4(pos, 1);
+       gl_Position = fragPos.xyww;
+}