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DONTFLIP flag prevents the backside from flipping over.

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This commit is contained in:
MajorCooke 2016-06-05 15:14:40 -05:00
parent 16bea6cf1f
commit e58c6de7d6
1 changed files with 6 additions and 1 deletions
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7
src/gl/scene/gl_sprite.cpp
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@ -279,6 +279,7 @@ void GLSprite::Draw(int pass)
// [Nash] is a flat sprite
const bool isFlatSprite = (actor != NULL) && (spritetype == RF_WALLSPRITE || spritetype == RF_FLATSPRITE);
const bool dontFlip = (actor != nullptr) && (actor->renderflags & RF_DONTFLIP);
// [Nash] check for special sprite drawing modes
if (drawWithXYBillboard || drawBillboardFacingCamera || drawRollSpriteActor || isFlatSprite)
@ -327,8 +328,12 @@ void GLSprite::Draw(int pass)
// Here we need some form of priority in order to work.
if (spritetype == RF_FLATSPRITE)
{
DVector3 diff = actor->Vec3To(GLRenderer->mViewActor);
DAngle angto = diff.Angle();
angto = deltaangle(actor->Angles.Yaw, angto);
float pitchDegrees = actor->Angles.Pitch.Degrees;
mat.Rotate(0, 1, 0, 0);
mat.Rotate(0, 1, 0, (!dontFlip || (fabs(angto) < 90.)) ? 0 : 180);
mat.Rotate(-yawvecY, 0, yawvecX, pitchDegrees);
if (drawRollSpriteActor)
{