编译一个简单的C程序来渲染Pixie(开源的renderman)

Question

所以我使用MinGW作为windows的C编译器，我做了一个简单的C程序

#include "ri.h"
 RtPoint Square[4] = { { .5,.5,.5} ,{.5,-.5,.5} , {-.5,.5,.5} , {-.5, -.5 , .5}};
 static RtColor Color = {.2,.4,.6};
 int main(){
        RiBegin (" square.rib" );
        RiDisplay ( " square.tif" , "file" ,"rgb" ,RI_NULL);
        RiWorldBegin();
    RiSurface("constant" , RI_NULL);
    RiColor(Color);
    RiPatch (RI_BILINEAR,RI_P,(RtPointer)Square,RI_NULL);
    //RiPatch (RI_BICUBIC,RI_P,(RtPointer)Square,RI_NULL);
    RiWorldEnd();
RiEnd();
return 0;
}   

所以我使用命令...

gcc -o test.o test.c -I"\..\Program Files (x86)\Pixie\include" -L"\..\Program Files (x86)\Pixie\lib" -lri

为了识别预编译器的包含文件的位置...以及链接器的库在哪里

我得到以下错误

:\Users\Edward\AppData\Local\Temp\ccEERD04.o:test.c:(.text+0x6e): undefined ref
erence to `_imp__RI_P'

C:\Users\Edward\AppData\Local\Temp\ccEERD04.o:test.c:(.text+0x75): undefined ref
erence to `_imp__RI_BILINEAR'

c:/mingw/bin/../lib/gcc/mingw32/4.7.2/../../../../mingw32/bin/ld.exe: C:\Users\E
dward\AppData\Local\Temp\ccEERD04.o: bad reloc address 0x20 in section `.eh_fram
e'
c:/mingw/bin/../lib/gcc/mingw32/4.7.2/../../../../mingw32/bin/ld.exe: final link
 failed: Invalid operation
collect2.exe: error: ld returned 1 exit status

我尝试查看是否遗漏了用于链接的库，但是...none我发现遗漏的引用在.h文件中

有人有什么建议吗？

Answer 1

我找到了解决这个问题的办法……我查看了ri.h的源文件，发现常量被初始化为什么。RI_P是"P“RI_BILINEAR是”双线性“

我变了

 RiPatch (RI_BILINEAR,RI_P,(RtPointer)Square,RI_NULL);

至

 RiPatch ("bilinear","P",(RtPointer)Square,RI_NULL);

这使我可以编译c文件并对映像进行RNDR。