example.ppsl

Input:

shader {
	//You can write multiple shaders with multiple versions. The engine should pick itself the highest supported on your platform.
	//This will parse into #version 130
	version 130; 
	//Name of the shader.
	name color_shader;
	
	//Attributes contains attributes and unforms that needs to be present in the shaders, if multiple shaders has the same names for uniforms they'll be combined.
	attributes {
		//Select vertex selects only vertex shaders.
		select vertex {
			in vec2 in_Position;
			in vec2 in_Color;
			out vec3 ex_Color;
		}
	
		//Select fragment selects only fragment shaders.
		select fragment {
			in vec3 ex_Color;
			out vec4 gl_FragColor;
		}
	
		//Select total selects ALL shader types.
		select total {
			uniform float time;
		}
	}
	
	vertex {
		//Always returns vec4
		//technique main is always added to the generated main.
		//Additional techniques can be turned on and off by setting them in-engine.
		technique main {
			ex_Color = in_Color;
			return vec4(in_Position, 0.0, 1.0);
		}
	}
	
	fragment {
		//Pre-attribute is added pre-attribute.
		preattrib glsl {
			precision highp float;
		}

		//Always return vec4
		//technique main is always added to the generated main.
		//Additional techniques can be turned on and off by setting them in-engine.
		technique main {
			return OtherFunction(ex_Color.xy);
		}
	
		//GLSL code.
		glsl {
			vec3 OtherFunction(vec2 input) {
				return vec3(input, 1.0);
			}
		}
	}
}
shader {
	//Version total is code that works on all GLSL versions.
	version total;
	name color_shader;
}

OUTPUT:
vertex:
#version 130
in vec2 in_Position;
in vec3 in_Color;
out vec3 ex_Color;

INSERT_MAIN

vec4 color_shader_technique() {
	ex_Color = in_Color;
	return vec4(in_Position, 0.0, 1.0);
}

fragment:
#version 130
precision highp float;

in vec3 ex_Color;
out vec4 gl_FragColor;

INSERT_MAIN

vec4 color_shader_technique() {
	return OtherFunction(ex_Color.xy);
}

vec3 color_shader_OtherFunction(vec2 input) {
	return vec3(input, 1.0);
}