From e1a85f898e0781c9dd69ced6cd6ccb4e304a7bd1 Mon Sep 17 00:00:00 2001
From: jussi
Date: Fri, 9 Dec 2022 16:02:28 +0200
Subject: Draw Mesh Instanced Example.

---
 .../shaders/glsl330/lighting_instancing.vs         | 36 ++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 examples/resources/shaders/glsl330/lighting_instancing.vs

(limited to 'examples/resources/shaders/glsl330/lighting_instancing.vs')

diff --git a/examples/resources/shaders/glsl330/lighting_instancing.vs b/examples/resources/shaders/glsl330/lighting_instancing.vs
new file mode 100644
index 0000000..6775a2e
--- /dev/null
+++ b/examples/resources/shaders/glsl330/lighting_instancing.vs
@@ -0,0 +1,36 @@
+#version 330
+
+// Input vertex attributes
+in vec3 vertexPosition;
+in vec2 vertexTexCoord;
+in vec3 vertexNormal;
+//in vec4 vertexColor;      // Not required
+
+in mat4 instanceTransform;
+
+// Input uniform values
+uniform mat4 mvp;
+uniform mat4 matNormal;
+
+// Output vertex attributes (to fragment shader)
+out vec3 fragPosition;
+out vec2 fragTexCoord;
+out vec4 fragColor;
+out vec3 fragNormal;
+
+// NOTE: Add here your custom variables
+
+void main()
+{
+    // Compute MVP for current instance
+    mat4 mvpi = mvp*instanceTransform;
+
+    // Send vertex attributes to fragment shader
+    fragPosition = vec3(mvpi*vec4(vertexPosition, 1.0));
+    fragTexCoord = vertexTexCoord;
+    //fragColor = vertexColor;
+    fragNormal = normalize(vec3(matNormal*vec4(vertexNormal, 1.0)));
+
+    // Calculate final vertex position
+    gl_Position = mvpi*vec4(vertexPosition, 1.0);
+}
-- 
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