I have a GLSL shader
program running my iPhone app (it's a very very simple shader). I am trying to declare an array of vec2
but I'm having a lot of trouble. My shader is wrapped in a thrid party library, so unfortunately I can't get any real information about the actual error in syntax is.
我有一个GLSL着色程序运行我的iPhone应用程序(它是一个非常简单的着色程序)。我试图声明一个vec2的数组,但是我遇到了很多麻烦。我的着色器被包装在一个thrid party库中,因此不幸的是,我不能得到任何关于语法错误的真实信息。
My code (not working) to declare an array of vec2 is:
我声明vec2数组的代码(不工作)是:
highp vec2 steps[5] = vec2[](
vec2( 0.0015625, 0.00208333333333),
vec2( 0.003125, 0.00416666666667),
vec2( 0.00625, 0.00833333333333),
vec2( 0.0125, 0.0166666666667),
vec2( 0.025, 0.0333333333333)
);
Does anyone have any idea how to create an array of vec2
datatypes in OpenGLES 2.0?
有人知道如何在OpenGLES 2.0中创建一个vec2数据类型数组吗?
2 个解决方案
#1
3
highp vec2 steps[5] = {
vec2( 0.0015625, 0.00208333333333),
vec2( 0.003125, 0.00416666666667),
vec2( 0.00625, 0.00833333333333),
vec2( 0.0125, 0.0166666666667),
vec2( 0.025, 0.0333333333333)
};
#2
2
I think it's possible to create, but I am not sure it's possible to initialize it at declaration time. According to the OpenGL ES specification, http://www.khronos.org/files/opengles_shading_language.pdf
我认为有可能创建,但我不确定是否有可能在声明时初始化它。根据OpenGL ES规范,http://www.khronos.org/files/opengles_shading_language.pdf
There is no mechanism for initializing arrays at declaration time from within a shader.
在声明时,没有从着色器内部初始化数组的机制。
#1
3
highp vec2 steps[5] = {
vec2( 0.0015625, 0.00208333333333),
vec2( 0.003125, 0.00416666666667),
vec2( 0.00625, 0.00833333333333),
vec2( 0.0125, 0.0166666666667),
vec2( 0.025, 0.0333333333333)
};
#2
2
I think it's possible to create, but I am not sure it's possible to initialize it at declaration time. According to the OpenGL ES specification, http://www.khronos.org/files/opengles_shading_language.pdf
我认为有可能创建,但我不确定是否有可能在声明时初始化它。根据OpenGL ES规范,http://www.khronos.org/files/opengles_shading_language.pdf
There is no mechanism for initializing arrays at declaration time from within a shader.
在声明时,没有从着色器内部初始化数组的机制。