Hi all I'm newbie with OpenGL, so I'm trying to make a simple app to draw the famous triangle, using shaders and the "modern" opengl (not using glBegin, glEnd, glOrtho, ...). But I'm unable to compile a simple shader. The related code is:
- (BOOL) compileShader: (GLuint *)shader type: (GLenum)type file: (NSString *)file { GLint status; const GLchar *source; int InfoLogLength = 0; source = (GLchar *)[[NSString stringWithContentsOfFile: file encoding: NSUTF8StringEncoding error: NULL] UTF8String]; if (!source) { NSLog(@"Failed to load vertex shader"); return NO; } *shader = glCreateShader(type); glShaderSource(*shader, 1, &source, NULL); glCompileShader(*shader); if (status == GL_TRUE) return YES; else return NO; } The shader files (I copied these from internet): #version 330 core // Ouput data out vec3 color; void main() { // Output color = red color = vec3(1,0,0); } And: #version 330 core // Input vertex data, different for all executions of this shader. layout(location = 0) in vec3 vertexPosition_modelspace; void main(){ gl_Position.xyz = vertexPosition_modelspace; gl_Position.w = 1.0; } Any advice? Thanks Germán _______________________________________________ Discuss-gnustep mailing list Discuss-gnustep@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnustep