88 lines
1.9 KiB
C++
88 lines
1.9 KiB
C++
// -*- C++ -*-
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#include <OpenGL/gl.h>
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#include <iostream>
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#include <math.h>
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#include <stdlib.h>
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#include "material.h"
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#include "texture.h"
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using namespace mbostock;
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Material::Material()
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: shininess_(0.f), texture_(NULL), slip_(0.f) {
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for (int i = 0; i < 4; i++) {
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ambient_[i] = 0.f;
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diffuse_[i] = 0.f;
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specular_[i] = 0.f;
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emission_[i] = 0.f;
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}
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}
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void Material::setAmbient(float r, float g, float b, float a) {
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ambient_[0] = r;
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ambient_[1] = g;
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ambient_[2] = b;
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ambient_[3] = a;
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}
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void Material::setDiffuse(float r, float g, float b, float a) {
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diffuse_[0] = r;
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diffuse_[1] = g;
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diffuse_[2] = b;
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diffuse_[3] = a;
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}
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void Material::setSpecular(float r, float g, float b, float a) {
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specular_[0] = r;
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specular_[1] = g;
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specular_[2] = b;
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specular_[3] = a;
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}
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void Material::setEmission(float r, float g, float b, float a) {
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emission_[0] = r;
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emission_[1] = g;
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emission_[2] = b;
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emission_[3] = a;
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}
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void Material::setShininess(float s) {
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shininess_ = s;
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}
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void Material::setTexture(const char* path) {
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texture_ = (path == NULL) ? NULL : &(Textures::fromFile(path));
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}
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void Material::setSlipAngle(float angle) {
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slip_ = cosf(angle * (2.f * M_PI / 360.f));
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}
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void Material::bind() const {
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glMaterialfv(GL_FRONT, GL_AMBIENT, ambient_);
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glMaterialfv(GL_FRONT, GL_DIFFUSE, diffuse_);
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glMaterialfv(GL_FRONT, GL_SPECULAR, specular_);
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glMaterialfv(GL_FRONT, GL_EMISSION, emission_);
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glMaterialf(GL_FRONT, GL_SHININESS, shininess_);
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if (texture_ == NULL) {
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glDisable(GL_BLEND);
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glBindTexture(GL_TEXTURE_2D, GL_NONE);
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} else {
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texture_->bind();
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}
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}
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const Material& Materials::blank() {
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static Material m;
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static bool init = false;
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if (!init) {
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init = true;
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m.setAmbient(.2f, .2f, .1f, .1f);
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m.setDiffuse(.4f, .1f, .1f, 1.f);
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m.setSpecular(.05f, .05f, .05f, .1f);
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m.setShininess(10.f);
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}
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return m;
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}
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