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### #Actualrun_g

Posted 08 January 2013 - 05:52 AM

This might seem simple but i just cant find the answer:- in opengl es (fixed function) lets say u texture map a bitmap to a regular polygon- so the bitmap is now stretched and thus relative position of the color points on the rectangle is different from original bitmap- is there is a way ... I mean a gl. function that- if given the x,y coord on the rectangle surface relative to say the top left rectangle coord as a parameter- will return the colour of that point?
PLEASE i hope someone can help on this... I'm kind-of stuck. many thanks

### #7run_g

Posted 08 January 2013 - 05:48 AM

This might seem simple but i just cant find the answer:- in opengl es (fixed function) lets say u texture map a bitmap to a regular polygon- so the bitmap is now stretched and thus relative position of the color points on the rectangle is different from original bitmap- is there is a way ... I mean a gl. function that- if given the x,y coord on the rectangle surface relative to say the top left rectangle coord as a parameter- will return the colour of that point?
PLEASE i hope someone can help on this... I'm kind-of stuck. many thanks

### #6run_g

Posted 08 January 2013 - 05:46 AM

This might seem simple but i just cant find the answer:- in opengl es (fixed function) lets say u texture map a bitmap to a regular polygon- so the bitmap is now stretched and thus relative position of the color points on the rectangle is different from original bitmap- is there is a way ... I mean a gl. function that- if given the x,y coord on the rectangle surface relative to say the top left rectangle coord as a parameter- will return the colour of that point?
PLEASE i hope some can help on this... I'm kind-of stuck. many thanks

### #5run_g

Posted 07 January 2013 - 05:52 PM

This might seem simple but i just cant find the answer:- in opengl es (fixed function) lets say u texture map a bitmap to a regular polygon- so the bitmap is now stretched and thus relative position of the color points on the rectangle is different from original bitmap- is there is a way ... I mean a gl. function that- if given the x,y coord on the rectangle surface relative to say the top left rectangle coord as a parameter- will return the colour of that point? Thanks in advance

### #4run_g

Posted 07 January 2013 - 05:50 PM

This might seem simple but i just cant find the answer:- in opengl es (fixed function) lets say u texture map a bitmap to a regular polygon- so the bitmap is now stretched and thus relative position of the color points on the rectangle is different from original bitmap- is there is a way ... I mean a gl. function that- if given the x,y coord on the rectangle surface relative to say the top left rectangle coord as a parameter- can return the colour of that point? Thanks in advance

### #3run_g

Posted 07 January 2013 - 02:33 PM

This might seem simple but i just cant find the answer:- in opengl es (fixed function) lets say u texture map a bitmap to a regular polygon- so the bitmap is now stretched and thus relative position of the color points on the rectangle is different from original bitmap- is there is a way ... I mean a function that- if given the x,y coord on the rectangle surface relative to say the top left rectangle coord,- can return the colour of that point? Thanks in advance

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