96 lines
2.4 KiB
C
96 lines
2.4 KiB
C
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/*
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* Created by Brett Terpstra 6920201 on 20/03/23.
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* Copyright (c) Brett Terpstra 2023 All Rights Reserved
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*/
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#ifndef ASSIGN3_RENDER_H
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#define ASSIGN3_RENDER_H
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#include <glad/gl.h>
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#include <GL/glut.h>
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#include <GL/freeglut.h>
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#include <util.h>
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#include <blt/math/vectors.h>
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#include <blt/std/random.h>
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#include <camera.h>
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#include "blt/std/logging.h"
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static void applyTranslation(
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float x, float y, float z, float size = 1, float angx = 0, float angy = 0, float angz = 0
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) {
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glMatrixMode(GL_MODELVIEW);
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glPushMatrix();
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glTranslatef(x, y, z);
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if (size != 1)
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glScalef(size, size, size);
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if (angx != 0)
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glRotatef(angx, 1, 0, 0);
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if (angy != 0)
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glRotatef(angy, 0, 1, 0);
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if (angz != 0)
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glRotatef(angz, 0, 0, 1);
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}
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static void renderCube(float x, float y, float z, float size, float angx, float angy, float angz) {
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applyTranslation(x, y, z, size, angx, angy, angz);
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const float s = 0.5f;
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// modified from http://www.cosc.brocku.ca/Offerings/3P98/course/OpenGL/3P98Examples/OpenGLExamples/orient.c
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float p[][3] = {{s, s, s},
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{s, -s, s},
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{-s, -s, s},
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{-s, s, s},
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{s, s, -s},
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{s, -s, -s},
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{-s, -s, -s},
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{-s, s, -s}};
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int e[][4] = {{0, 3, 2, 1},
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{3, 7, 6, 2},
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{7, 4, 5, 6},
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{4, 0, 1, 5},
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{0, 4, 7, 3},
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{1, 2, 6, 5}};
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glBegin(GL_QUADS);
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for (auto& i : e) {
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glTexCoord2f(1, 1);
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glVertex3fv(p[i[0]]);
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glTexCoord2f(1, 0);
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glVertex3fv(p[i[1]]);
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glTexCoord2f(0, 0);
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glVertex3fv(p[i[2]]);
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glTexCoord2f(0, 1);
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glVertex3fv(p[i[3]]);
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}
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glEnd();
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glPopMatrix();
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}
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static void renderPlane(float x, float y, float z, float size, float angx, float angy, float angz) {
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glDisable(GL_CULL_FACE);
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applyTranslation(x, y, z, size, angx, angy, angz);
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const float s = 0.5f;
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glBegin(GL_QUADS);
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glTexCoord2f(1, 1);
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glVertex3f(s, s, 0);
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glTexCoord2f(1, 0);
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glVertex3f(s, -s, 0);
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glTexCoord2f(0, 0);
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glVertex3f(-s, -s, 0);
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glTexCoord2f(0, 1);
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glVertex3f(-s, s, 0);
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glEnd();
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glPopMatrix();
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glEnable(GL_CULL_FACE);
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}
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#endif //ASSIGN3_RENDER_H
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