fix scissoring bugs with r_shadow_realtime_dlight - the projectmatrix was not being...

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@4045 d7cf8633-e32d-0410-b094-e92efae38249

diff --git a/gl_backend.c b/gl_backend.c
index 2a8be5a48bd0220d70686a1ea79612a879bf7c14..8a96ebc339ee6fa54607729f5ad27b452f098aac 100644 (file)
--- a/gl_backend.c
+++ b/gl_backend.c
@@ -248,6 +248,7 @@ void GL_SetupView_Orientation_FromEntity(matrix4x4_t *matrix)
 void GL_SetupView_Mode_Perspective (double fovx, double fovy, double zNear, double zFar)
 {
        double xmax, ymax;
+       double m[16];
 
        if (!r_render.integer)
                return;
@@ -260,13 +261,30 @@ void GL_SetupView_Mode_Perspective (double fovx, double fovy, double zNear, doub
        ymax = zNear * tan(fovy * M_PI / 360.0);
        // set view pyramid
        qglFrustum(-xmax, xmax, -ymax, ymax, zNear, zFar);CHECKGLERROR
+       qglGetDoublev(GL_PROJECTION_MATRIX, &m);
+       backend_projectmatrix.m[0][0] = m[0];
+       backend_projectmatrix.m[1][0] = m[1];
+       backend_projectmatrix.m[2][0] = m[2];
+       backend_projectmatrix.m[3][0] = m[3];
+       backend_projectmatrix.m[0][1] = m[4];
+       backend_projectmatrix.m[1][1] = m[5];
+       backend_projectmatrix.m[2][1] = m[6];
+       backend_projectmatrix.m[3][1] = m[7];
+       backend_projectmatrix.m[0][2] = m[8];
+       backend_projectmatrix.m[1][2] = m[9];
+       backend_projectmatrix.m[2][2] = m[10];
+       backend_projectmatrix.m[3][2] = m[11];
+       backend_projectmatrix.m[0][3] = m[12];
+       backend_projectmatrix.m[1][3] = m[13];
+       backend_projectmatrix.m[2][3] = m[14];
+       backend_projectmatrix.m[3][3] = m[15];
        qglMatrixMode(GL_MODELVIEW);CHECKGLERROR
        GL_SetupView_Orientation_Identity();
 }
 
 void GL_SetupView_Mode_PerspectiveInfiniteFarClip (double fovx, double fovy, double zNear)
 {
-       float nudge, m[16];
+       double nudge, m[16];
 
        if (!r_render.integer)
                return;
@@ -292,7 +310,7 @@ void GL_SetupView_Mode_PerspectiveInfiniteFarClip (double fovx, double fovy, dou
        m[13] = 0;
        m[14] = -2 * zNear * nudge;
        m[15] = 0;
-       qglLoadMatrixf(m);
+       qglLoadMatrixd(m);
        qglMatrixMode(GL_MODELVIEW);CHECKGLERROR
        GL_SetupView_Orientation_Identity();
        backend_projectmatrix.m[0][0] = m[0];
@@ -315,6 +333,8 @@ void GL_SetupView_Mode_PerspectiveInfiniteFarClip (double fovx, double fovy, dou
 
 void GL_SetupView_Mode_Ortho (double x1, double y1, double x2, double y2, double zNear, double zFar)
 {
+       double m[16];
+
        if (!r_render.integer)
                return;
 
@@ -322,6 +342,23 @@ void GL_SetupView_Mode_Ortho (double x1, double y1, double x2, double y2, double
        qglMatrixMode(GL_PROJECTION);CHECKGLERROR
        qglLoadIdentity();CHECKGLERROR
        qglOrtho(x1, x2, y2, y1, zNear, zFar);
+       qglGetDoublev(GL_PROJECTION_MATRIX, &m);
+       backend_projectmatrix.m[0][0] = m[0];
+       backend_projectmatrix.m[1][0] = m[1];
+       backend_projectmatrix.m[2][0] = m[2];
+       backend_projectmatrix.m[3][0] = m[3];
+       backend_projectmatrix.m[0][1] = m[4];
+       backend_projectmatrix.m[1][1] = m[5];
+       backend_projectmatrix.m[2][1] = m[6];
+       backend_projectmatrix.m[3][1] = m[7];
+       backend_projectmatrix.m[0][2] = m[8];
+       backend_projectmatrix.m[1][2] = m[9];
+       backend_projectmatrix.m[2][2] = m[10];
+       backend_projectmatrix.m[3][2] = m[11];
+       backend_projectmatrix.m[0][3] = m[12];
+       backend_projectmatrix.m[1][3] = m[13];
+       backend_projectmatrix.m[2][3] = m[14];
+       backend_projectmatrix.m[3][3] = m[15];
        qglMatrixMode(GL_MODELVIEW);CHECKGLERROR
        GL_SetupView_Orientation_Identity();
 }