Question

代码：

  [lightRender beginWithClear:0 g:0 b:0 a:0];

    self.shaderProgram = [[CCShaderCache sharedShaderCache] programForKey:kCCShader_PositionColor];

    CC_NODE_DRAW_SETUP();

    CGPoint vertices[3];
    ccColor4F colors[3];

    CGPoint mid = BODY_POSITION(cursor.body);

    float radius = LIGHT_RANGE * lightRadius;             // - (CCRANDOM_0_1() * LIGHT_RANGE * .015);

    float initialAlpha = .7f;

    for (int i = 0; i < LIGHT_PRECISION; i++)
    {
        int nVertices = 0;
        float angle = 2*M_PI/LIGHT_PRECISION * i;
        float nextAngle = 2*M_PI/LIGHT_PRECISION * (i+1);
        int n = i + 1;
        if (n == LIGHT_PRECISION)
            n = 0;

        vertices[nVertices] = ccpAdd(mid, ccp(cosf(angle) * radius * lightLength[i], sinf(angle) * radius * lightLength[i]));
        colors[nVertices++] = (ccColor4F){1, 1, .9, initialAlpha * (1 - lightLength[i])};
        vertices[nVertices] = ccpAdd(mid, ccp(cosf(nextAngle) * radius * lightLength[n], sinf(nextAngle) * radius * lightLength[n]));
        colors[nVertices++] = (ccColor4F){1, 1, .9, initialAlpha * (1 - lightLength[n])};
        vertices[nVertices] = mid;
        colors[nVertices++] = (ccColor4F){1, 1, .8, initialAlpha};

        ccGLEnableVertexAttribs(kCCVertexAttribFlag_Position  | kCCVertexAttribFlag_Color);

        glVertexAttribPointer(kCCVertexAttrib_Position, 2, GL_FLOAT, GL_FALSE, 0, vertices);
        glVertexAttribPointer(kCCVertexAttrib_Color, 4, GL_FLOAT, GL_FALSE, 0, colors);
        glBlendFunc(CC_BLEND_SRC, CC_BLEND_DST);
        glDrawArrays(GL_TRIANGLE_STRIP, 0, (GLsizei)nVertices);
    }

    [lightRender end];

CC_NODE_DRAW_SETUP代码：

#define CC_NODE_DRAW_SETUP()                                                                    \
do {                                                                                            \
    ccGLEnable( _glServerState );                                                               \
    NSAssert1(_shaderProgram, @"No shader program set for node: %@", self);                     \
    [_shaderProgram use];                                                                       \
    [_shaderProgram setUniformsForBuiltins];                                    \
} while(0)

如何使用Cocos2d 2.2 Obj.C项目修复iOS12中的着色器代码？如果我在iOS 7模拟器中运行，它可以完美运行..相同的代码在iOS 12中不起作用

Answer 1

修复了Cocos2d中的着色器问题。

在上面的代码中，主要问题是CGFloat ...将其转换为所有顶点都为浮动。

我还从Cocos2d-x中获取了与着色器相关的文件，并将其转换为Cocos2d的obj.C。

现在所有着色器都可以在Cocos2d v2.2 Obj.C iOS 12中完美运行，iPhoneX / XR / XSMax也是如此。

快乐编码！干杯：）

Shader程序在Cocos2d 2.2 Obj.C iOS 12中不起作用

1 个答案: