1. Create a Node
2. Import a md2 model
3. Add a Texture named Colormap and load a to png or jpg converted texture
4. Create script, vertex and fragment shader
5. Configure the time to 1 minute loop
Or paste these commands into the Console:
Node = World.addNode();
Node.addTexture("Colormap");
Node.addScript();
Node.addVertexShader();
Node.addFragmentShader();
Node.importModel();
Node.Colormap.load();
The first 4 functions accepts object names as argument. The last two paths to the files.
After pasting the following codes to Script, Vertex and Fragment shader. Start the
rendering script by entering "Node.Script.run();" into the console or start it from the
Scripts context menu.
Script:
World.Cam.LoadIdenty();
World.Cam.Translate(0,0,30);
shader = gl.Shader(Vertexshader,Fragmentshader);
shader.Uniformi("Colormap",0);
secondary = shader.Loc("secondary");
secondnorm = shader.Loc("secondnorm");
gl.Enable(gl.CULL_FACE);
gl.CullFace(gl.FRONT);
function render(){
Colormap.Bind(0);
gl.Rotate(-90, 1,0,0);
shader.Bind();
i = World.getTime()*3.3;
shader.Uniform("mixval",i - Math.floor(i));
Model.UvCoords.Bind();
Model.Vertex.BindKeyFrame(i);
Model.Vertex.BindKeyFrame(i+1,secondary);
Model.Normal.BindKeyFrame(i);
Model.Normal.BindKeyFrame(i+1,secondnorm);
Model.Index.Draw();
shader.Unbind();
}
Vertexshader:
attribute vec3 secondary; //2nd keyframe position
attribute vec3 secondnorm; //2nd keyframe normal
uniform float mixval;
varying vec3 N;
void main(void){
vec3 v = mix(gl_Vertex.xyz,secondary.xyz,mixval);
N= gl_NormalMatrix * mix(gl_Normal,secondnorm,mixval);
gl_Position = gl_ModelViewProjectionMatrix * vec4(v,1.0);
gl_TexCoord[0] = gl_MultiTexCoord0 * vec4(1,-1,0,0); // divide by 32768.0 if
the texcoords are shorts;
}
Fragment shader:
uniform sampler2D Tex0;
varying vec3 N;
void main(void){
gl_FragColor.rgb = (max(0.0,dot(N,vec3(0.707,0.0,0.707))) + 0.5) *
texture2D(Tex0, vec2(gl_TexCoord[0])) ;
}
