Why doesn't this render? (Custom suns)

[Draco18s]

public void render(RenderEngine eng, World worldObj, float partial)
{
	Tessellator tessellator = Tessellator.instance;
	float invertRain = 1.0F - worldObj.getRainStrength(partial);
	float celestial_period = getCelestialPeriod(worldObj.getWorldTime(), partial);
	GL11.glEnable(3553);
	GL11.glBlendFunc(770, 1);
	GL11.glColor4f(1.0F, 1.0F, 1.0F, invertRain);
	GL11.glPushMatrix();
	GL11.glRotatef(this.angle, 0.0F, 1.0F, 0.0F);
	GL11.glRotatef(celestial_period * 360.0F, 1.0F, 0.0F, 0.0F);

	float size = 30.0F;
	System.out.println("I am rendering");
	GL11.glBindTexture(3553, eng.getTexture("/mods/CustomCelestials/textures/environment/sun_type"+this.type+".png"));
	tessellator.startDrawingQuads();
	tessellator.addVertexWithUV(-size, 100.0D, -size, 0.0D, 0.0D);
	tessellator.addVertexWithUV(size, 100.0D, -size, 1.0D, 0.0D);
	tessellator.addVertexWithUV(size, 100.0D, size, 1.0D, 1.0D);
	tessellator.addVertexWithUV(-size, 100.0D, size, 0.0D, 1.0D);
	tessellator.draw();

	GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
	GL11.glPopMatrix();
	this.renderHorizon(eng, worldObj, celestial_period, this.angle, partial, 1.0F);
}

 

My print statement prints.  Sunsets render (the this.renderHorizon call, to a function in the same class).  The sun object itself does not.

 

This code works in 1.5.1 and does not in 1.5.2.

[redria7]

Try drawing in the opposite direction. The direction you start drawing (clockwise or counter clockwise) makes your texture face a certain direction. Your sun is probably just facing away from you so you can't see it.

So:

	tessellator.addVertexWithUV(-size, 100.0D, size, 0.0D, 1.0D);
	tessellator.addVertexWithUV(size, 100.0D, size, 1.0D, 1.0D);
	tessellator.addVertexWithUV(size, 100.0D, -size, 1.0D, 0.0D);
                tessellator.addVertexWithUV(-size, 100.0D, -size, 0.0D, 0.0D);

This should fix your problem.

[Draco18s]

Not sure if it would or not.

 

I did end up...solving the problem, although I don't know what it actually is.  Here's working code.

 

public void render(RenderEngine eng, World worldObj, float partial)
{
	Tessellator tessellator = Tessellator.instance;

	GL11.glEnable(GL11.GL_TEXTURE_2D);
        GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE);
        GL11.glPushMatrix();
        float rainStr = 1.0F - worldObj.getRainStrength(partial);
        
        GL11.glColor4f(1.0F, 1.0F, 1.0F, rainStr);
        //GL11.glTranslatef(0F,0F,0F);
        GL11.glRotatef(angle, 0.0F, 1.0F, 0.0F);
        GL11.glRotatef(getCelestialPeriod(worldObj.getWorldTime(), partial) * 360.0F, 1.0F, 0.0F, 0.0F);
        
        float size = 30.0F;
        eng.bindTexture("/mods/CustomCelestials/textures/environment/sun_type"+this.type+".png");
        tessellator.startDrawingQuads();
        tessellator.addVertexWithUV((double)(-size), 100.0D, (double)(-size), 0.0D, 0.0D);
        tessellator.addVertexWithUV((double)size, 100.0D, (double)(-size), 1.0D, 0.0D);
        tessellator.addVertexWithUV((double)size, 100.0D, (double)size, 1.0D, 1.0D);
        tessellator.addVertexWithUV((double)(-size), 100.0D, (double)size, 0.0D, 1.0D);
        tessellator.draw();

	GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
	GL11.glPopMatrix();
	renderHorizon(eng, worldObj, getCelestialPeriod(worldObj.getWorldTime(), partial), this.angle, partial, 1.0F);
}

 

Note that the quad's verts are draw in the same order as the original.