OrdinaryMagician/vkdoom_m
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Adding isometric camera mode with orthographic projection to current state of master branch of GZDoom.

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Dileep V. Reddy 2024-01-15 17:27:39 -07:00 • committed by Rachael Alexanderson
commit d2c2c93cf1
10 changed files with 117 additions and 5 deletions
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33
src/rendering/hwrenderer/hw_entrypoint.cpp
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@ -162,8 +162,37 @@ sector_t* RenderViewpoint(FRenderViewpoint& mainvp, AActor* camera, IntRect* bou
di->Viewpoint.FieldOfView = DAngle::fromDeg(fov); // Set the real FOV for the current scene (it's not necessarily the same as the global setting in r_viewpoint)
// Stereo mode specific perspective projection
di->VPUniforms.mProjectionMatrix = eye.GetProjection(fov, ratio, fovratio);
// Switch viewpoint for isometric camera
if(r_isocam && camera->player != NULL)
{
float camdist = r_iso_dist;
if (r_orthographic) camdist = r_iso_camdist;
float camheight = camdist*FAngle::fromDeg(r_iso_pitch).Tan();
camheight -= 0.5*camera->player->viewheight;
int myisoviewpoint = 1;
if (r_isoviewpoint > 0 && r_isoviewpoint < 9) myisoviewpoint = r_isoviewpoint - 1;
else myisoviewpoint = camera->player->isoviewpoint % 8;
if (myisoviewpoint < 0) myisoviewpoint = 0;
if (r_isoviewpoint < 9) camera->player->isoyaw = 45.0 * myisoviewpoint; // The eight cardinal directions
vp.Pos.X -= camdist * DAngle::fromDeg(camera->player->isoyaw).Cos();
vp.Pos.Y -= camdist * DAngle::fromDeg(camera->player->isoyaw).Sin();
vp.Pos.Z += camheight;
vp.HWAngles.Pitch = FAngle::fromDeg(r_iso_pitch);
vp.Angles.Pitch = DAngle::fromDeg(r_iso_pitch);
vp.Angles.Yaw = DAngle::fromDeg(camera->player->isoyaw);
vp.Angles.Roll = DAngle::fromDeg(0);
vp.showviewer = true; // Draw player sprite
r_drawplayersprites = false; // Don't draw first-person hands/weapons
// Stereo mode specific perspective projection
di->VPUniforms.mProjectionMatrix = eye.GetProjection(fov, ratio, fovratio, r_orthographic);
}
else // Regular first-person viewpoint
{
vp.showviewer = false;
r_drawplayersprites = true; // Restore first-person hands/weapons
// Stereo mode specific perspective projection
di->VPUniforms.mProjectionMatrix = eye.GetProjection(fov, ratio, fovratio, false);
}
// Stereo mode specific viewpoint adjustment
vp.Pos += eye.GetViewShift(vp.HWAngles.Yaw.Degrees());
di->SetupView(RenderState, vp.Pos.X, vp.Pos.Y, vp.Pos.Z, false, false);