diff options
Diffstat (limited to 'indra/llrender/llrender.h')
| -rw-r--r-- | indra/llrender/llrender.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/indra/llrender/llrender.h b/indra/llrender/llrender.h index 6f22f1d8cb..ceebc7000b 100644 --- a/indra/llrender/llrender.h +++ b/indra/llrender/llrender.h @@ -496,4 +496,29 @@ extern S32 gGLViewport[4]; extern LLRender gGL; +// This rotation matrix moves the default OpenGL reference frame +// (-Z at, Y up) to Cory's favorite reference frame (X at, Z up) +const F32 OGL_TO_CFR_ROTATION[16] = { 0.f, 0.f, -1.f, 0.f, // -Z becomes X + -1.f, 0.f, 0.f, 0.f, // -X becomes Y + 0.f, 1.f, 0.f, 0.f, // Y becomes Z + 0.f, 0.f, 0.f, 1.f }; + +const F32 XYZ_TO_OGL_ROTATION[16] = { 1.f, 0.f, 0.f, 0.f, // X stays X + 0.f, 0.f, -1.f, 0.f, // Z becomes -Y + 0.f, 1.f, 0.f, 0.f, // Y becomes Z + 0.f, 0.f, 0.f, 1.f }; + +glh::matrix4f copy_matrix(F32* src); +glh::matrix4f get_current_modelview(); +glh::matrix4f get_current_projection(); +glh::matrix4f get_last_modelview(); +glh::matrix4f get_last_projection(); + +void copy_matrix(const glh::matrix4f& src, F32* dst); +void set_current_modelview(const glh::matrix4f& mat); +void set_current_projection(glh::matrix4f& mat); + +glh::matrix4f gl_ortho(GLfloat left, GLfloat right, GLfloat bottom, GLfloat top, GLfloat znear, GLfloat zfar); +glh::matrix4f gl_perspective(GLfloat fovy, GLfloat aspect, GLfloat zNear, GLfloat zFar); +glh::matrix4f gl_lookat(LLVector3 eye, LLVector3 center, LLVector3 up); #endif |