1 files changed, 35 insertions, 0 deletions
diff --git a/source/blender/draw/engines/eevee/shaders/prepass_vert.glsl b/source/blender/draw/engines/eevee/shaders/prepass_vert.glsl
new file mode 100644
index 00000000000..f2e9e7001e8
--- /dev/null
+++ b/source/blender/draw/engines/eevee/shaders/prepass_vert.glsl
@@ -0,0 +1,35 @@
+
+uniform mat4 ModelViewProjectionMatrix;
+uniform mat4 ModelMatrix;
+
+/* keep in sync with DRWManager.view_data */
+layout(std140) uniform clip_block {
+	vec4 ClipPlanes[1];
+};
+
+#ifndef HAIR_SHADER
+in vec3 pos;
+#endif
+
+void main()
+{
+#ifdef HAIR_SHADER
+	float time, thick_time, thickness;
+	vec3 pos, tan, binor;
+	hair_get_pos_tan_binor_time(
+	        (ProjectionMatrix[3][3] == 0.0),
+	        ViewMatrixInverse[3].xyz, ViewMatrixInverse[2].xyz,
+	        pos, tan, binor, time, thickness, thick_time);
+
+	gl_Position = ViewProjectionMatrix * vec4(pos, 1.0);
+	vec4 worldPosition = vec4(pos, 1.0);
+#else
+	gl_Position = ModelViewProjectionMatrix * vec4(pos, 1.0);
+	vec4 worldPosition = (ModelMatrix * vec4(pos, 1.0));
+#endif
+
+#ifdef CLIP_PLANES
+	gl_ClipDistance[0] = dot(vec4(worldPosition.xyz, 1.0), ClipPlanes[0]);
+#endif
+	/* TODO motion vectors */
+}