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problem about lesson 10

Started by ggsmd Oct 16, 2011 at 8:55 AM 1 replies 14.8k views

Original Post

Oct 16, 2011 at 8:55 AM

i changed

xpos += (float)sin(heading*piover180) * 0.05f;
zpos += (float)cos(heading*piover180) * 0.05f;
into

xpos += (float)sin(heading*piover180) * 0.0005f;
zpos += (float)cos(heading*piover180) * 0.0005f;
then i run the program finding the scene shakes when i press UP or DOWN to move,
it doesn't move in a smooth way, can anyone tell how to solve this?

lc_overlord

Oct 17, 2011 at 9:53 AM

It's most likely because the lesson doesn't use a delta time value, instead movement is based on how many frames are rendered, so any inconsistencies in the frame rate show up as shaking or stuttering in the movements, adding delta time compensates for that, so do skip ahead to lesson 32 an learn how to implement it.

ggsmd

Nov 3, 2011 at 8:06 AM

It's most likely because the lesson doesn't use a delta time value, instead movement is based on how many frames are rendered, so any inconsistencies in the frame rate show up as shaking or stuttering in the movements, adding delta time compensates for that, so do skip ahead to lesson 32 an learn how to implement it.

thank you

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