1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/material.cc	Sun Aug 24 09:41:24 2014 +0300
     1.3 @@ -0,0 +1,75 @@
     1.4 +#include "opengl.h"
     1.5 +#include "material.h"
     1.6 +#include "unistate.h"
     1.7 +
     1.8 +Material::Material()
     1.9 +	: diffuse(1, 1, 1), specular(0, 0, 0)
    1.10 +{
    1.11 +	alpha = 1.0;
    1.12 +	shininess = 1.0;
    1.13 +
    1.14 +	for(int i=0; i<MAX_MTL_TEXTURES; i++) {
    1.15 +		tex[i] = 0;
    1.16 +	}
    1.17 +}
    1.18 +
    1.19 +
    1.20 +void Material::setup(bool use_textures) const
    1.21 +{
    1.22 +	static bool done_init;
    1.23 +	static int st_diffuse_idx, st_specular_idx, st_shininess_idx, st_alpha_idx;
    1.24 +	static int st_tex_diffuse_idx, st_tex_specular_idx, st_tex_normal_idx;
    1.25 +	static int st_tex_idx[MAX_MTL_TEXTURES];
    1.26 +
    1.27 +	if(!done_init) {
    1.28 +		st_diffuse_idx = add_unistate("st_mtl_diffuse", ST_FLOAT3);
    1.29 +		st_specular_idx = add_unistate("st_mtl_specular", ST_FLOAT3);
    1.30 +		st_shininess_idx = add_unistate("st_mtl_shininess", ST_FLOAT);
    1.31 +		st_alpha_idx = add_unistate("st_mtl_alpha", ST_FLOAT);
    1.32 +		st_tex_diffuse_idx = add_unistate("st_tex_diffuse", ST_INT);
    1.33 +		st_tex_specular_idx = add_unistate("st_tex_specular", ST_INT);
    1.34 +		st_tex_normal_idx = add_unistate("st_tex_normal", ST_INT);
    1.35 +
    1.36 +		for(int i=0; i<MAX_MTL_TEXTURES; i++) {
    1.37 +			char name[32];
    1.38 +			sprintf(name, "st_tex%d", i);
    1.39 +			st_tex_idx[i] = add_unistate(name, ST_INT);
    1.40 +		}
    1.41 +		done_init = true;
    1.42 +	}
    1.43 +
    1.44 +	set_unistate(st_diffuse_idx, diffuse);
    1.45 +	set_unistate(st_specular_idx, specular);
    1.46 +	set_unistate(st_shininess_idx, shininess);
    1.47 +	set_unistate(st_alpha_idx, alpha);
    1.48 +
    1.49 +	if(!use_textures) {
    1.50 +		return;	// we're done
    1.51 +	}
    1.52 +
    1.53 +	const int tex_named_idx[] = {
    1.54 +		st_tex_diffuse_idx, st_tex_specular_idx, st_tex_normal_idx, -1
    1.55 +	};
    1.56 +
    1.57 +	int tex_unit = 0;
    1.58 +	for(int i=0; i<MAX_MTL_TEXTURES; i++) {
    1.59 +		if(tex[i]) {
    1.60 +			bind_texture(tex[i], tex_unit);
    1.61 +
    1.62 +			if(tex_named_idx[i] != -1) {
    1.63 +				set_unistate(tex_named_idx[i], tex_unit);
    1.64 +			}
    1.65 +			set_unistate(st_tex_idx[i], tex_unit);
    1.66 +			tex_unit++;
    1.67 +		}
    1.68 +	}
    1.69 +
    1.70 +	// also do fixed-function setup
    1.71 +	float dcol[] = {diffuse.x, diffuse.y, diffuse.z, alpha};
    1.72 +	glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, dcol);
    1.73 +
    1.74 +	float scol[] = {specular.x, specular.y, specular.z, 1.0f};
    1.75 +	glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, scol);
    1.76 +
    1.77 +	glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, shininess);
    1.78 +}