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REVIEWED: BeginMode3D()

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Ray 2021-03-19 21:55:47 +01:00
parent be8d5a7ae2
commit 5967c1ba1a
1 changed files with 16 additions and 6 deletions
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22
src/core.c
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@ -1913,13 +1913,23 @@ void BeginMode3D(Camera3D camera)
float aspect = (float)CORE.Window.currentFbo.width/(float)CORE.Window.currentFbo.height;
double top = 0;
if (camera.projection == CAMERA_PERSPECTIVE) top = RL_CULL_DISTANCE_NEAR*tan(camera.fovy*0.5*DEG2RAD);
else if (camera.projection == CAMERA_ORTHOGRAPHIC) top = camera.fovy/2.0;
rlFrustum(-top*aspect, top*aspect, -top, top, RL_CULL_DISTANCE_NEAR, RL_CULL_DISTANCE_FAR);
// NOTE: zNear and zFar values are important when computing depth buffer values
if (camera.projection == CAMERA_PERSPECTIVE)
{
// Setup perspective projection
double top = RL_CULL_DISTANCE_NEAR*tan(camera.fovy*0.5*DEG2RAD);
double right = top*aspect;
rlFrustum(-right, right, -top, top, RL_CULL_DISTANCE_NEAR, RL_CULL_DISTANCE_FAR);
}
else if (camera.projection == CAMERA_ORTHOGRAPHIC)
{
// Setup orthographic projection
double top = camera.fovy/2.0;
double right = top*aspect;
rlOrtho(-right, right, -top,top, RL_CULL_DISTANCE_NEAR, RL_CULL_DISTANCE_FAR);
}
rlMatrixMode(RL_MODELVIEW); // Switch back to modelview matrix
rlLoadIdentity(); // Reset current matrix (modelview)