1 files changed, 43 insertions, 0 deletions
diff --git a/res/sdr/mdl_foliage.vs b/res/sdr/mdl_foliage.vs
new file mode 100644
index 0000000..db9d7b6
--- /dev/null
+++ b/res/sdr/mdl_foliage.vs
@@ -0,0 +1,43 @@
+#version 330
+
+in vec3 vertexPosition;
+in vec2 vertexTexCoord;
+in vec3 vertexNormal;
+in vec4 vertexColor;
+
+uniform mat4 mvp;
+uniform mat4 matNormal;
+
+uniform vec3 sun_direction;
+uniform vec3 sun_colour;
+uniform float sun_intensity;
+
+uniform vec3 moon_direction;
+uniform vec3 moon_colour;
+uniform float moon_intensity;
+
+uniform vec3 ambient_colour;
+uniform float ambient_intensity;
+
+uniform vec2 uv_tiling;
+uniform vec2 uv_offset;
+
+out vec2 frag_texcoord;
+out vec4 frag_colour;
+out vec3 frag_lighting;
+
+void main() {
+	vec3 world_normal = normalize((matNormal * vec4(vertexNormal, 0.0)).xyz);
+	float sun_diffuse = abs(dot(world_normal, sun_direction));
+	float moon_diffuse = abs(dot(world_normal, moon_direction));
+
+	vec3 ambient_light = ambient_colour * ambient_intensity;
+	vec3 sun_light = sun_colour * sun_intensity * sun_diffuse;
+	vec3 moon_light = moon_colour * moon_intensity * moon_diffuse;
+
+	frag_lighting = ambient_light + sun_light + moon_light;
+	frag_texcoord = vertexTexCoord * uv_tiling + uv_offset;
+	frag_colour = vertexColor;
+
+	gl_Position = mvp * vec4(vertexPosition, 1.0);
+}