I have baked json model (cube from 0,0,0 to 16,16,16), and I want it to rotate along the center (8, 8, 8).

What I tried was translate it to x - 0.5, y - 0.5, z - 0.5, rotate, and translate back to 0.5, 0.5, 0.5. After playing with it little I figured out, that even that rotation point is translated.

 

How should I rotate it?

 

Simplified code:

public void render(TileEntityShaft te, double x, double y, double z, float partialTicks, int destroyStage, float alpha) {
	GlStateManager.translate(x - 0.5, y - 0.5, z - 0.5); // Translates model at te.getPos - 0.5
	GlStateManager.rotate(90, 0, 1, 0); Rotates model around point - 0.5, -0.5, -0.5, in this example I needed to rotate it around 0,0,0
	GlStateManager.translate(0.5, 0.5, 0.5);
	renderMyBakedModel
}

 

Use this:

GL11.glTranslated(0.5, 0.5, 0.5);
GL11.glRotated(270, 1, 0, 0);
GL11.glTranslated(-0.5, -0.5, -0.5);

you were translating incorrectly! PS: Don't forget to rotate back after rendering!

Edited January 20, 20187 yr by deerangle

Thanks! Works fine now.