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ref: gl: implement rotation for 3D

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This commit is contained in:
Alibek Omarov
2025-10-19 06:26:28 +05:00
parent 4dabb5d1f9
commit 684f7fb75e
1 changed files with 24 additions and 6 deletions
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30
ref/gl/gl_rmain.c
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@@ -395,7 +395,14 @@ static void R_SetupProjectionMatrix( matrix4x4 m )
xMax = zNear * tan( RI.fov_x * M_PI_F / 360.0f );
xMin = -xMax;
Matrix4x4_CreateProjection( m, xMax, xMin, yMax, yMin, zNear, zFar );
if( tr.rotation & 1 )
{
Matrix4x4_CreateProjection( m, yMax, yMin, xMax, xMin, zNear, zFar );
}
else
{
Matrix4x4_CreateProjection( m, xMax, xMin, yMax, yMin, zNear, zFar );
}
}
/*
@@ -406,9 +413,18 @@ R_SetupModelviewMatrix
static void R_SetupModelviewMatrix( matrix4x4 m )
{
Matrix4x4_CreateModelview( m );
Matrix4x4_ConcatRotate( m, -RI.viewangles[2], 1, 0, 0 );
Matrix4x4_ConcatRotate( m, -RI.viewangles[0], 0, 1, 0 );
Matrix4x4_ConcatRotate( m, -RI.viewangles[1], 0, 0, 1 );
if( tr.rotation & 1 )
{
Matrix4x4_ConcatRotate( m, anglemod( -RI.viewangles[2] + 90 ), 1, 0, 0 );
Matrix4x4_ConcatRotate( m, -RI.viewangles[0], 0, 1, 0 );
Matrix4x4_ConcatRotate( m, -RI.viewangles[1], 0, 0, 1 );
}
else
{
Matrix4x4_ConcatRotate( m, -RI.viewangles[2], 1, 0, 0 );
Matrix4x4_ConcatRotate( m, -RI.viewangles[0], 0, 1, 0 );
Matrix4x4_ConcatRotate( m, -RI.viewangles[1], 0, 0, 1 );
}
Matrix4x4_ConcatTranslate( m, -RI.vieworg[0], -RI.vieworg[1], -RI.vieworg[2] );
}
@@ -535,7 +551,7 @@ void R_SetupGL( qboolean set_gl_state )
if( RP_NORMALPASS( ))
{
int x, x2, y, y2;
int x, x2, y, y2;
// set up viewport (main, playersetup)
x = floor( RI.viewport[0] * gpGlobals->width / gpGlobals->width );
@@ -543,7 +559,9 @@ void R_SetupGL( qboolean set_gl_state )
y = floor( gpGlobals->height - RI.viewport[1] * gpGlobals->height / gpGlobals->height );
y2 = ceil( gpGlobals->height - ( RI.viewport[1] + RI.viewport[3] ) * gpGlobals->height / gpGlobals->height );
pglViewport( x, y2, x2 - x, y - y2 );
if( tr.rotation & 1 )
pglViewport( y2, x, y - y2, x2 - x );
else pglViewport( x, y2, x2 - x, y - y2 );
}
else
{