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| local vert = [[
attribute vec4 a_position; // 默认坐标
attribute vec2 a_texCoord; // 默认纹理坐标
attribute vec4 a_color; // 默认颜色
#ifdef GL_ES
varying lowp vec4 v_fragmentColor; // 顶点
varying mediump vec2 v_texCoord; // 坐标
#else
varying vec4 v_fragmentColor;
varying vec2 v_texCoord;
#endif
void main()
{
gl_Position = CC_PMatrix * a_position;
v_fragmentColor = a_color;
v_texCoord = a_texCoord;
}
]]
local frag = [[
#ifdef GL_ES
precision mediump float;
#endif
varying vec4 v_fragmentColor;
varying vec2 v_texCoord;
void main(void)
{
// 当前片源的颜色
vec4 c = texture2D(CC_Texture0, v_texCoord);
gl_FragColor.xyz = vec3(0.2126*c.r + 0.7152*c.g + 0.0722*c.b);
gl_FragColor.w = c.w;
}
]]
local glProgram = cc.GLProgram:createWithByteArrays(vert, frag)
local glProgramState = cc.GLProgramState:getOrCreateWithGLProgram(glProgram)
local logo = self.holder:getChildByName("Sprite_start_logo")
local size = logo:getTexture():getContentSizeInPixels()
logo:setGLProgramState(glProgramState)
|
