4jcraft/Minecraft.Client/Rendering/Lighting.cpp
2026-03-13 17:10:10 -05:00

58 lines
1.8 KiB
C++

#include "../Platform/stdafx.h"
#include "Lighting.h"
#include "../../Minecraft.World/IO/Streams/FloatBuffer.h"
#include "../../Minecraft.World/Util/Vec3.h"
FloatBuffer* Lighting::lb = new FloatBuffer(16);
void Lighting::turnOff() {
glDisable(GL_LIGHTING);
glDisable(GL_LIGHT0);
glDisable(GL_LIGHT1);
glDisable(GL_COLOR_MATERIAL);
}
void Lighting::turnOn() {
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glEnable(GL_LIGHT1);
glEnable(GL_COLOR_MATERIAL);
glColorMaterial(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE);
float a = 0.4f;
float d = 0.6f;
float s = 0.0f;
Vec3* l = Vec3::newTemp(0.2f, 1.0f, -0.7f)->normalize();
glLight(GL_LIGHT0, GL_POSITION, getBuffer(l->x, l->y, l->z, 0));
glLight(GL_LIGHT0, GL_DIFFUSE, getBuffer(d, d, d, 1));
glLight(GL_LIGHT0, GL_AMBIENT, getBuffer(0.0f, 0.0f, 0.0f, 1.0f));
glLight(GL_LIGHT0, GL_SPECULAR, getBuffer(s, s, s, 1.0f));
l = Vec3::newTemp(-0.2f, 1.0f, 0.7f)->normalize();
glLight(GL_LIGHT1, GL_POSITION, getBuffer(l->x, l->y, l->z, 0));
glLight(GL_LIGHT1, GL_DIFFUSE, getBuffer(d, d, d, 1));
glLight(GL_LIGHT1, GL_AMBIENT, getBuffer(0.0f, 0.0f, 0.0f, 1.0f));
glLight(GL_LIGHT1, GL_SPECULAR, getBuffer(s, s, s, 1.0f));
glShadeModel(GL_FLAT);
glLightModel(GL_LIGHT_MODEL_AMBIENT, getBuffer(a, a, a, 1));
}
FloatBuffer* Lighting::getBuffer(double a, double b, double c, double d) {
return getBuffer((float)a, (float)b, (float)c, (float)d);
}
FloatBuffer* Lighting::getBuffer(float a, float b, float c, float d) {
lb->clear();
lb->put(a)->put(b)->put(c)->put(d);
lb->flip();
return lb;
}
void Lighting::turnOnGui() {
glPushMatrix();
glRotatef(-30, 0, 1, 0);
glRotatef(165, 1, 0, 0);
turnOn();
glPopMatrix();
}