如何使用 openGL 的 golang 绑定定义 gl.DrawBuffers COLOR_ATTACHMENTi

Question

使用"github.com/go-gl/gl/v4.5-core/gl"设置color_attachments数组的golang绑定如下：

// Specifies a list of color buffers to be drawn into
func DrawBuffers(n int32, bufs *uint32) {
    C.glowDrawBuffers(gpDrawBuffers, (C.GLsizei)(n), (*C.GLenum)(unsafe.Pointer(bufs)))
}

在 C++ 中，您可以这样做：

// Set "renderedTexture" as our colour attachement #0
glFramebufferTexture(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, renderedTexture, 0);

// Set the list of draw buffers.
GLenum DrawBuffers[1] = {GL_COLOR_ATTACHMENT0};
glDrawBuffers(1, DrawBuffers); // "1" is the size of DrawBuffers

我这辈子都想不通您应该如何将缓冲区数组传递给它，我们将不胜感激。

Answer 1

传递指向第一个元素的指针：gl.DrawBuffers(int32(len(attachments)), &attachments[0])。我希望这能回答你的问题。

完整示例：https://github.com/Kugelschieber/go-game/blob/e88c16372587ddb958753bf70fde9de4babf65df/fbo.go

如何使用 openGL 的 golang 绑定定义 gl.DrawBuffers COLOR_ATTACHMENTi

How to define gl.DrawBuffers COLOR_ATTACHMENTi with golang bindings for openGL

opengl

framebuffer

go