Effect render problem

[CrispyChicken]

I have a problem with the rendering of a Effect. It rendered perfectly in 1.6.4, but in 1.7.2 the texture is rendered realy dark and when its above me its rendered almost black. Has anyone a solution to this problem?

 

Here is the render methode:

 

public void renderParticle(Tessellator tessellator, float partialTicks, float par3, float par4, float par5, float par6, float par7){
	Minecraft.getMinecraft().renderEngine.bindTexture(currentTexture);
	glDepthMask(false);
	glEnable(GL_BLEND);
	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
	glAlphaFunc(GL_GREATER, 0.1F);
	tessellator.startDrawingQuads();
	tessellator.setBrightness(getBrightnessForRender(partialTicks));
	float scale = 0.1F*particleScale;
	float x = (float)(prevPosX +(posX - prevPosX) * partialTicks - interpPosX);
	float y = (float)(prevPosY +(posY - prevPosY) * partialTicks - interpPosY);
	float z = (float)(prevPosZ +(posZ - prevPosZ) * partialTicks - interpPosZ);
	tessellator.addVertexWithUV(x - par3 * scale - par6 * scale, y - par4 * scale, z - par5 * scale - par7 * scale, 1, 1);
	tessellator.addVertexWithUV(x - par3 * scale + par6 * scale, y + par4 * scale, z - par5 * scale + par7 * scale, 1, 0);
	tessellator.addVertexWithUV(x + par3 * scale + par6 * scale, y + par4 * scale, z + par5 * scale + par7 * scale, 0, 0);
	tessellator.addVertexWithUV(x + par3 * scale - par6 * scale, y - par4 * scale, z + par5 * scale - par7 * scale, 0, 1);
	tessellator.draw();
	glDisable(GL_BLEND);
	glDepthMask(true);
	glAlphaFunc(GL_GREATER, 0.1F);
}