OpenGL如何在使用GL_QUAD_STRIP渲染一张材质时避免重复渲染

Question

2D。
我使用一系列中点坐标对应材质渲染位置，

                GL11.glPushMatrix();
        GL11.glTranslatef(x, y, 0);
        GL11.glRotatef(angle + 90f, 0, 0, 1);

        GL11.glEnable(GL11.GL_TEXTURE_2D);
        sprite.bindTexture();
        GL11.glEnable(GL11.GL_BLEND);
        GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);

        GL11.glColor4ub((byte) color.getRed(),
                (byte) color.getGreen(),
                (byte) color.getBlue(),
                (byte) ((float) color.getAlpha() * alphaMult));
        GL11.glBegin(GL11.GL_QUAD_STRIP);
        {
            float texProgress = 1f;
            float ftAngle;
            float diffAngle = MathUtils.getShortestRotation(this.angle, 270f);
            List<Vector2f> offsetPoints = VectorUtils.rotateAroundPivot(tentacleMiddlePoints, loc, diffAngle);
            for (int i = 0; i < segments - 1; i++) {
                float x0, x1, y0, y1;
                Vector2f vi = offsetPoints.get(i);
                Vector2f vii = offsetPoints.get(i + 1);
                if (i == 0) {
                    ftAngle = 270f;
                } else {
                    ftAngle = VectorUtils.getAngle(vi, vii);
                }
                Vector2f leftV = MathUtils.getPointOnCircumference(vi, halfWidth, ftAngle + 90f);
                Vector2f rightV = MathUtils.getPointOnCircumference(vi, halfWidth, ftAngle - 90f);
                x0 = leftV.x - x;
                y0 = leftV.y - y;
                x1 = rightV.x - x;
                y1 = rightV.y - y;
                GL11.glTexCoord2f(0f, texProgress);
                GL11.glVertex2f(x0, y0);
                GL11.glTexCoord2f(1f, texProgress);
                GL11.glVertex2f(x1, y1);
                texProgress -= texPerSegment;
                if (texProgress < 0f) {
                    break;
                }

            }
        }
        GL11.glEnd();
                GL11.glPopMatrix();

现在出现一种情况，如果我这一系列点靠的太近，或者连成的直线拐了个180°甚至360°的大弯，那么渲染的图片明显有一部分时重叠的（颜色很亮的长条），这应该怎么解决？从源头入手删掉几个点吗？但这样的话算法又是什么？

Answer 1

https://zhidao.baidu.com/question/935911950290420172.html