Question

float pfIdentity[] =
{
    -1.0f,0.0f,0.0f,0.0f,
    0.0f,1.0f,0.0f,0.0f,
    0.0f,0.0f,1.0f,0.0f,
    0.0f,0.0f,0.0f,1.0f
};

=================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================

    const char* pszVertShader = "
    attribute highp vec4    myVertex;
    uniform mediump mat4    myPMVMatrix;
    invariant gl_Position;
    void main(void)
    {
        gl_Position = myPMVMatrix * myVertex;
}";

================================================================================================================================================================================================================================================================

for(int i = 0; i < 80000; ++i)
{
    glClear(GL_COLOR_BUFFER_BIT);
    int i32Location = glGetUniformLocation(uiProgramObject, "myPMVMatrix");
    glUniformMatrix4fv( i32Location, 1, GL_FALSE, pfIdentity);
    glEnableVertexAttribArray(VERTEX_ARRAY);
    glVertexAttribPointer(VERTEX_ARRAY, 3, GL_FLOAT, GL_FALSE, 0, 0);
    glDrawArrays(GL_TRIANGLES, 0,i);
    eglSwapBuffers(eglDisplay, eglSurface);
}

return 0;
}

p.s : i 正在Bubuntu 10.10中与Kronos头盔进行开关,后者是开放式电筒2.0。

Answer 1

你们根本不会有预测。页: 1

float pfIdentity[] =
{
    -1.0f,0.0f,0.0f,0.0f,
    0.0f,1.0f,0.0f,0.0f,
    0.0f,0.0f,1.0f,0.0f,
    0.0f,0.0f,0.0f,1.0f
};

/* ... */

glUniformMatrix4fv( i32Location, 1, GL_FALSE, pfIdentity);

BTW: The idea of uniforms is, that you don t set them at each primitive iteration.

不管怎么说,这是个特征矩阵,由于它是唯一的转变,它只会通过vert,因为它们正处于碎块阶段。解决你的问题的方法是,对它进行地理预测,即用直线预测矩阵把这一矩阵乘起来,而是使用这一作业的结果。 rel=“nofollow” http://www.songho.ca/opengl/gl_projectionmatrix.html

友情链接