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232 lines
7.7 KiB
C++
232 lines
7.7 KiB
C++
#include"lightCaster.h"
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ShaderProgram* lastShader = NULL;
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queue<int> available = queue<int>();
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Illuminant::Illuminant(){
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Logger::debug("We do not recommend to construct illuminant without parameter");
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}
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// white color by default
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Illuminant::Illuminant(glm::vec3 position, LightType lightType){
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_position = position;
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setType(lightType);
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Logger::info("55555555555");
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}
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// set up with one color
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Illuminant::Illuminant(glm::vec3 position, glm::vec3 color, LightType lightType){
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_position = position;
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_ambient = color * 0.05f;
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_diffuse = color * 0.8f;
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_specular = color;
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setType(lightType);
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Logger::info("4444444444444444444");
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}
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//set up by assign all colors
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Illuminant::Illuminant(glm::vec3 position, glm::vec3 ambient,
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glm::vec3 diffuse, glm::vec3 specular, LightType lightType){
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_position = position;
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_ambient = ambient;
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_diffuse = diffuse;
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_specular = specular;
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setType(lightType);
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Logger::info("333333333333333");
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}
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// set up with one color，建议平行光源使用这个
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Illuminant::Illuminant(LightType lightType, glm::vec3 direction, glm::vec3 color) {
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_direction = direction;
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_ambient = color * 0.05f;
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_diffuse = color * 0.8f;
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_specular = color;
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setType(lightType);
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Logger::info("22222222222222222");
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}
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// set up with one color，建议聚光灯光源使用这个
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Illuminant::Illuminant(glm::vec3 position, glm::vec3 direction, glm::vec3 color, LightType lightType) {
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_direction = direction;
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_position = position;
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_ambient = color * 0.05f;
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_diffuse = color * 0.8f;
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_specular = color;
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setType(lightType);
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Logger::info("1111111111111111111");
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}
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Illuminant::~Illuminant() {
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switchOff();
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if (_lightType == point) {
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available.push(this->pointID);
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}
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}
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void Illuminant::setAttenuation(float constant, float linear, float quadratic){
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_constant = constant;
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_linear = linear;
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_quadratic = quadratic;
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}
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glm::vec3 Illuminant::direction(){
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return _direction;
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}
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glm::vec3 Illuminant::position(){
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return _position;
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}
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glm::vec3 Illuminant::ambient(){
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return _ambient;
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}
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glm::vec3 Illuminant::diffuse(){
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return _diffuse;
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}
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glm::vec3 Illuminant::specular(){
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return _specular;
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}
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Illuminant::LightType Illuminant::type(){
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return _lightType;
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}
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void Illuminant::move(glm::vec3 deltaPos){
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_position += deltaPos;
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}
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void Illuminant::setPosition(glm::vec3 Pos){
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_position = Pos;
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}
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void Illuminant::setColor(glm::vec3 ambient, glm::vec3 diffuse, glm::vec3 specular){
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_ambient = ambient;
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_diffuse = diffuse;
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_specular = specular;
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}
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// 使用默认的分配系数
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void Illuminant::setColor(glm::vec3 color){
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_ambient = color * 0.05f;
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_diffuse = color * 0.8f;
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_specular = color;
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}
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void Illuminant::setDirection(glm::vec3 direction) {
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_direction = direction;
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}
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void Illuminant::setType(LightType type){
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if (available.size() == 0 and type == point) {
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Logger::error("Point light number exceed!\n");
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return;
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}
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_lightType = type;
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if (type == point) {
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pointID = available.front();
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available.pop();
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}
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}
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void Illuminant::updateLight(ShaderProgram& shader) {
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lastShader = &shader;
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if (_lightType == dir) {
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// directional light
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shader.setUniform("dirLight.direction", _direction);
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shader.setUniform("dirLight.ambient", _ambient);
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shader.setUniform("dirLight.diffuse", _diffuse);
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shader.setUniform("dirLight.specular",_specular);
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}
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else if (_lightType == point)
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{ // point light 1
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string prefix = "pointLights[" + std::to_string(pointID) + "].";
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shader.setUniform(prefix+"position", _position);
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shader.setUniform(prefix + "ambient", _ambient);
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shader.setUniform(prefix + "diffuse", _diffuse);
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shader.setUniform(prefix + "specular", _specular);
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shader.setUniform(prefix + "constant",_constant);
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shader.setUniform(prefix + "linear", _linear);
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shader.setUniform(prefix + "quadratic", _quadratic);
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}
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else {
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// spotLight
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shader.setUniform("spotLight.position", _position);
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shader.setUniform("spotLight.direction", _direction);
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shader.setUniform("spotLight.ambient", _ambient);
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shader.setUniform("spotLight.diffuse", _diffuse);
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shader.setUniform("spotLight.specular", _specular);
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shader.setUniform("spotLight.constant", _constant);
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shader.setUniform("spotLight.linear", _linear);
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shader.setUniform("spotLight.quadratic", _quadratic);
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shader.setUniform("spotLight.cutOff", glm::cos(glm::radians(12.5f)));
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shader.setUniform("spotLight.outerCutOff", glm::cos(glm::radians(15.0f)));
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}
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}
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void Illuminant::switchOff() {
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// 只要没有颜色就行了
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setColor(glm::vec3(0.0f, 0.0f, 0.0f));
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if (lastShader != NULL) {
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updateLight(*lastShader);
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}
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}
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void init_queue() {
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for (int i = 0; i < Illuminant::MAXPOINTLIGHT; i++) {
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available.push(i);
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Logger::info("23533423q543");
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}
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}
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// 如果uniform变量没有被设置，可能会出现不可预知的后果！
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void setAllLigntUniform(ShaderProgram& shader) {
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shader.setUniform("dirLight.direction",0,0,-1);
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shader.setUniform("dirLight.ambient", 0.1f, 0.1f, 0.1f);
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shader.setUniform("dirLight.diffuse", 0.0f, 0.0f, 0.0f);
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shader.setUniform("dirLight.specular", 0.0f, 0.0f, 0.0f);
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// point light 1
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shader.setUniform("pointLights[0].position", 0, 0, 0);
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shader.setUniform("pointLights[0].ambient", 0.0f, 0.0f, 0.0f);
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shader.setUniform("pointLights[0].diffuse", 0.0f, 0.0f, 0.0f);
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shader.setUniform("pointLights[0].specular", 0.0f, 0.0f, 0.0f);
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shader.setUniform("pointLights[0].constant", 1.0f);
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shader.setUniform("pointLights[0].linear", 0.09f);
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shader.setUniform("pointLights[0].quadratic", 0.032f);
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// point light 2
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shader.setUniform("pointLights[1].position", 0.0f, 0.0f, 0.0f);
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shader.setUniform("pointLights[1].ambient", 0.0f, 0.0f, 0.0f);
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shader.setUniform("pointLights[1].diffuse", 0.0f, 0.0f, 0.0f);
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shader.setUniform("pointLights[1].specular", 0.0f, 0.0f, 0.0f);
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shader.setUniform("pointLights[1].constant", 1.0f);
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shader.setUniform("pointLights[1].linear", 0.09f);
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shader.setUniform("pointLights[1].quadratic", 0.032f);
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// point light 3
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shader.setUniform("pointLights[2].position", 0.0f, 0.0f, 0.0f);
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shader.setUniform("pointLights[2].ambient", 0.0f, 0.0f, 0.0f);
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shader.setUniform("pointLights[2].diffuse", 0.0f, 0.0f, 0.0f);
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shader.setUniform("pointLights[2].specular", 0.0f, 0.0f, 0.0f);
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shader.setUniform("pointLights[2].constant", 1.0f);
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shader.setUniform("pointLights[2].linear", 0.09f);
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shader.setUniform("pointLights[2].quadratic", 0.032f);
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// point light 4
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shader.setUniform("pointLights[3].position", 0.0f, 0.0f, 0.0f);
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shader.setUniform("pointLights[3].ambient", 0.0f, 0.0f, 0.0f);
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shader.setUniform("pointLights[3].diffuse", 0.0f, 0.0f, 0.0f);
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shader.setUniform("pointLights[3].specular", 0.0f, 0.0f, 0.0f);
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shader.setUniform("pointLights[3].constant", 1.0f);
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shader.setUniform("pointLights[3].linear", 0.09f);
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shader.setUniform("pointLights[3].quadratic", 0.032f);
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// spotLight
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shader.setUniform("spotLight.position", 0.0f, 0.0f, 3.0f);
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shader.setUniform("spotLight.direction", -0.0f,-0.0f, -1.0f);
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shader.setUniform("spotLight.ambient", 0.0f, 0.0f, 0.0f);
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shader.setUniform("spotLight.diffuse", 0.0f, 0.0f, 0.0f);
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shader.setUniform("spotLight.specular", 0.0f, 0.0f, 0.0f);
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shader.setUniform("spotLight.constant", 1.0f);
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shader.setUniform("spotLight.linear", 0.09f);
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shader.setUniform("spotLight.quadratic", 0.032f);
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shader.setUniform("spotLight.cutOff", glm::cos(glm::radians(12.5f)));
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shader.setUniform("spotLight.outerCutOff", glm::cos(glm::radians(15.0f)));
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} |