Latest compatible version of Classicube from the original GitHub repository (https://github.com/ClassiCube/ClassiCube) that can be compiled on Classicube for PowerMac PPC running Mac OS X 10.4.

misc/ps3/vs_coloured.vcg

@@ -0,0 +1,11 @@
+void main(
+	float4 in_position : POSITION,
+	float4 in_color    : DIFFUSE,
+	uniform float4x4 mvp,
+	out float4 out_pos   : POSITION, 
+	out float4 out_color : COLOR)
+{
+	float4 pos = float4(in_position.xyz, 1.0f);	
+	out_pos    = mul(pos, mvp);
+	out_color  = in_color;
+}