src/shaders/unlit.c


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#include "common/core.h"

/*uniforms*/
#define object2world UM4(0)
#define light        UV3(0)
#define maintex      UTEX(0)

/*varyings*/
#define rough reg_num_00

static void vert( Vertex* in, Vec4* clipcoord) {
	static Vec4 p; p.xyz = in->position; p.w = 1;
	Vec4 normal = { 
		in->normal.x,
		in->normal.y,
		in->normal.z,
		1
	};
	Vec4 worldnormal; internal_mat4_mulvec4(object2world, &normal, &worldnormal);
	internal_vec3_normalize(light, light);
	*reg_num_00 = 1 - internal_vec3_dot(&worldnormal, light);
}

static bool frag( Color32* color) {
	internal_vec3_normalize(light, light);
	return 1;
}

Program ssr_built_in_shader_unlit = { 
	vert, frag,
	VARYING_NUM_00
};