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This commit is contained in:
Miguel Astor
2023-06-21 21:40:51 -04:00
parent 22ff5bfa25
commit b0ca706a25
26 changed files with 892 additions and 0 deletions
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1
cube.c/README.md Normal file
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Render a unit cube with classic OpenGL. TexCoords are a bit wonky.

69
cube.c/cube.c Normal file
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static void render_cube() {
glBegin(GL_QUADS); {
/* Front face. */
glNormal3f(-1.0f, 0.0f, 0.0f);
glTexCoord2f(0.0f, 0.0f);
glVertex3f(-0.5f, 0.5f, -0.5);
glTexCoord2f(1.0f, 0.0f);
glVertex3f(-0.5f, -0.5f, -0.5);
glTexCoord2f(1.0f, 1.0f);
glVertex3f(-0.5f, -0.5f, 0.5f);
glTexCoord2f(0.0f, 1.0f);
glVertex3f(-0.5f, 0.5f, 0.5f);
/* Back Face. */
glNormal3f(1.0f, 0.0f, 0.0f);
glTexCoord2f(0.0f, 0.0f);
glVertex3f( 0.5f, 0.5f, -0.5);
glTexCoord2f(0.0f, 1.0f);
glVertex3f( 0.5f, 0.5f, 0.5f);
glTexCoord2f(1.0f, 1.0f);
glVertex3f( 0.5f, -0.5f, 0.5f);
glTexCoord2f(1.0f, 0.0f);
glVertex3f( 0.5f, -0.5f, -0.5);
/* Top. */
glNormal3f(0.0f, 0.0f, 1.0f);
glTexCoord2f(0.0f, 0.0f);
glVertex3f(-0.5f, -0.5f, 0.5f);
glTexCoord2f(1.0f, 0.0f);
glVertex3f(0.5f, -0.5f, 0.5f);
glTexCoord2f(1.0f, 1.0f);
glVertex3f(0.5f, 0.5f, 0.5f);
glTexCoord2f(0.0f, 1.0f);
glVertex3f(-0.5f, 0.5f, 0.5f);
/* Bottom. */
glNormal3f(0.0f, 0.0f, -1.0f);
glTexCoord2f(0.0f, 1.0f);
glVertex3f(-0.5f, -0.5f, -0.5f);
glTexCoord2f(1.0f, 1.0f);
glVertex3f(-0.5f, 0.5f, -0.5f);
glTexCoord2f(1.0f, 0.0f);
glVertex3f(0.5f, 0.5f, -0.5f);
glTexCoord2f(0.0f, 0.0f);
glVertex3f(0.5f, -0.5f, -0.5f);
/* Left side. */
glNormal3f(0.0f, -1.0f, 0.0f);
glTexCoord2f(0.0f, 0.0f);
glVertex3f(-0.5f, -0.5f, -0.5);
glTexCoord2f(1.0f, 0.0f);
glVertex3f(0.5f, -0.5f, -0.5);
glTexCoord2f(1.0f, 1.0f);
glVertex3f(0.5f, -0.5f, 0.5f);
glTexCoord2f(0.0f, 1.0f);
glVertex3f(-0.5f, -0.5f, 0.5f);
/* Right side. */
glNormal3f(0.0f, 1.0f, 0.0f);
glTexCoord2f(0.0f, 0.0f);
glVertex3f(-0.5f, 0.5f, -0.5);
glTexCoord2f(0.0f, 1.0f);
glVertex3f(-0.5f, 0.5f, 0.5f);
glTexCoord2f(1.0f, 1.0f);
glVertex3f(0.5f, 0.5f, 0.5f);
glTexCoord2f(1.0f, 0.0f);
glVertex3f(0.5f, 0.5f, -0.5);
} glEnd();
}