openGL / JOGL：为什么有些纹理渲染“平滑”而有些则没有？

Question

以下代码是在我的 JOGL 练习应用中渲染单个立方体的方法：

        public void render(GL gl)
        {
            texture.enable();

            gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER, GL.GL_NEAREST);

            texture.bind(); // textures clockwise from top left when
            // facing

            gl.glBegin(GL.GL_QUADS);

            // north facing side
            if (renderSide[0])
                {
                    gl.glNormal3i(0, 1, 0);
                    gl.glTexCoord2f(0.0f, 0.0f);
                    gl.glVertex3fv(v2, 0);
                    gl.glTexCoord2f(1.0f, 0.0f);
                    gl.glVertex3fv(v1, 0);
                    gl.glTexCoord2f(1.0f, 1.0f);
                    gl.glVertex3fv(v5, 0);
                    gl.glTexCoord2f(0.0f, 1.0f);
                    gl.glVertex3fv(v6, 0);
                }
            // east facing side
            if (renderSide[1])
                {
                    gl.glNormal3i(1, 0, 0);
                    gl.glTexCoord2f(0.0f, 0.0f);
                    gl.glVertex3fv(v3, 0);
                    gl.glTexCoord2f(1.0f, 0.0f);
                    gl.glVertex3fv(v2, 0);
                    gl.glTexCoord2f(1.0f, 1.0f);
                    gl.glVertex3fv(v6, 0);
                    gl.glTexCoord2f(0.0f, 1.0f);
                    gl.glVertex3fv(v7, 0);
                }
            // south facing side
            if (renderSide[2])
                {
                    gl.glNormal3i(0, -1, 0);
                    gl.glTexCoord2f(0.0f, 0.0f);
                    gl.glVertex3fv(v4, 0);
                    gl.glTexCoord2f(1.0f, 0.0f);
                    gl.glVertex3fv(v3, 0);
                    gl.glTexCoord2f(1.0f, 1.0f);
                    gl.glVertex3fv(v7, 0);
                    gl.glTexCoord2f(0.0f, 1.0f);
                    gl.glVertex3fv(v8, 0);
                }
            // west facing side
            if (renderSide[3])
                {
                    gl.glNormal3i(-1, 0, 0);
                    gl.glTexCoord2f(0.0f, 0.0f);
                    gl.glVertex3fv(v1, 0);
                    gl.glTexCoord2f(1.0f, 0.0f);
                    gl.glVertex3fv(v4, 0);
                    gl.glTexCoord2f(1.0f, 1.0f);
                    gl.glVertex3fv(v8, 0);
                    gl.glTexCoord2f(0.0f, 1.0f);
                    gl.glVertex3fv(v5, 0);
                }
            // top side
            if (renderSide[4])
                {
                    gl.glNormal3i(0, 0, 1);
                    gl.glTexCoord2f(0.0f, 0.0f);
                    gl.glVertex3fv(v1, 0);
                    gl.glTexCoord2f(1.0f, 0.0f);
                    gl.glVertex3fv(v2, 0);
                    gl.glTexCoord2f(1.0f, 1.0f);
                    gl.glVertex3fv(v3, 0);
                    gl.glTexCoord2f(0.0f, 1.0f);
                    gl.glVertex3fv(v4, 0);
                }

            gl.glEnd();
            texture.disable();

每个 Cube 都调用此代码，每个 Cube 都以相同的方式初始化，但是某些纹理的处理方式不同并且“模糊”，而其余的则没有，

这是一张图片：

每个块的每一帧都会调用此渲染方法，那么问题是如何永久地显示为单个块的呢？

还有一个附带问题，我的应用程序存在大量内存泄漏，我无法追踪，问题出在这里吗？除了设置相机和光源，这是大部分 OpenGL 代码！

Answer 1

GL_TEXTURE_MAG_FILTER 是每个纹理对象的状态。绑定你的纹理对象，然后设置它。