Three new tutorials added (3D c++)

[Ghoti]

Hi folks,

I have added three new tutorials.

Texture tutorial: This is the first of a series of tutorials on texturing, this will simply explain some basic and function and let you use a texture for a triangle. No optimisations yet in this tutorial.

FPS counter: I will show you how ot create a frame per second counter. Updates every second

Screenfading tutorial: This tutorial explains how screenfading can be done. It is really easy

Hope you all like the updates

http://www.ghoti.nl/PSPtutorials.php

greets ghoti

[Bubbletune]

As always, nice work
Bedankt!

[Gusjdt]

This is great! Thanks for these tuts. Bookmarking now..

[Xfacter]

char buffer[256];
sprintf(buffer, "texture.png");
texture = loadImage(buffer);

Extremely unnecessary. Please remove this to prevent confusion.

[Ghoti]

Originally Posted by Xfacter

Extremely unnecessary. Please remove this to prevent confusion.

What exactly do you mean? not using the sprintf but just passing the "texture.png" directly to the function? because that does not work when I try that :s

Originally Posted by JumpR

As always, nice work
Bedankt!

Thanks!
Jij ook bedankt he altijd leuk reactie te krijgen van Nederlanders

Originally Posted by Gusjdt

This is great! Thanks for these tuts. Bookmarking now..

No problems I like to do it and it also is useful for me because sometimes I use things that are not so great and people correct me like Xfacter and so I learn also

[yaustar]

 texture = loadImage("texture.png");

Works.

[eldiablov]

Yaustar what is the purpose of the buffer other than to get on my nerves ? I remember yeldarb doing it for images too.

[Ghoti]

Originally Posted by yaustar

 texture = loadImage("texture.png");

Works.

Yes indeed thanks for that, in a simple sample it did not work but I know now why and it works so indeed you guys were right will change it in the tuts

[eldiablov]

These tuorials made me look at c++ differently. Its looks cleaner than C. Is there a tut on loading models and blitting them and animating them ?

[Ghoti]

Originally Posted by eldiablov

These tuorials made me look at c++ differently. Its looks cleaner than C. Is there a tut on loading models and blitting them and animating them ?

Well yes I think that c++ helps with creating code which is better to read. I do not know if everyone agrees but I think with the help of classes you can order your source a lot better. I like this way of programming in any case

Well I am busy with creating a tutorial at the moment which let you load up triangulated .obj files to let the readers get a feel on how to write code that loads up models but I will not create a super perfect model loader which let you load up everything you want (simply because I can't create a super perfect model loader ) but I think it will be a very handy tutorial for you guys when you want to load 3d models.

[eldiablov]

Just borrow a model loader from someone else and demonstrate how to use it. That would be easier IMO.

[Ghoti]

Originally Posted by eldiablov

Just borrow a model loader from someone else and demonstrate how to use it. That would be easier IMO.

yes it would be easier but not as much fun and ofcourse when you understand the basics you can create on exactly to your needs without unneccesary overhead so it would mean that it will work more efficient or faster i hope

[eldiablov]

Aah yes, adapt it to your needs, very true. I look forward to your next tut.

[feddemaster]

Cool tutorials, keep it up

Nederlanders nemen QJ over Kijk als je wilt ook eens op mn site die in mn sig staat. Wij gaan ook tuts aanbieden

[yaustar]

Originally Posted by eldiablov

Yaustar what is the purpose of the buffer other than to get on my nerves ? I remember yeldarb doing it for images too.

In this example, nothing. What it can be used for is to generate file names/paths from other information.

e.g

const int MAX_CHAR_BUFFER = 256;
char buffer[MAX_CHAR_BUFFER];
for( int i = 0; i < MAX_NUM_IMAGES ++i )
{
	snprintf( buffer, MAX_CHAR_BUFFER, "randomName_%d", i );
	textures[i] = loadImage( buffer );
}

[Ghoti]

Originally Posted by feddemaster

Cool tutorials, keep it up

Nederlanders nemen QJ over Kijk als je wilt ook eens op mn site die in mn sig staat. Wij gaan ook tuts aanbieden

Thanks ! hope they help

Ja je gaat het haast denken he

[placo23]

Originally Posted by eldiablov

Yaustar what is the purpose of the buffer other than to get on my nerves ? I remember yeldarb doing it for images too.

I use it like this:

char image_name[56];
int i;
for (i=0; i<DECK_SIZE; i++ ) {
         sprintf ( image_name, "./cards/%s.png",cards[i]);
         imgObj[i] = oslLoadImageFile(image_name, OSL_IN_RAM, OSL_PF_8888);
}

But be carefull with that, as you're using a buffers, and it tends to be slightly slower than loading image by image

UPDATE
D'oh! Yaustar posted almost the same thing as I posted... Well anyways.. that one uses OSLib to load the image

[Ghoti]

Originally Posted by placo23

I use it like this:

char image_name[56];
int i;
for (i=0; i<DECK_SIZE; i++ ) {
         sprintf ( image_name, "./cards/%s.png",cards[i]);
         imgObj[i] = oslLoadImageFile(image_name, OSL_IN_RAM, OSL_PF_8888);
}

But be carefull with that, as you're using a buffers, and it tends to be slightly slower than loading image by image

UPDATE
D'oh! Yaustar posted almost the same thing as I posted... Well anyways.. that one uses OSLib to load the image

Originally Posted by yaustar

In this example, nothing. What it can be used for is to generate file names/paths from other information.

e.g

const int MAX_CHAR_BUFFER = 256;
char buffer[MAX_CHAR_BUFFER];
for( int i = 0; i < MAX_NUM_IMAGES ++i )
{
	snprintf( buffer, MAX_CHAR_BUFFER, "randomName_%d", i );
	textures[i] = loadImage( buffer );
}

Yes I also use it in Boxy II with the animated backgrounds but I now use it everywhere but now I know I have to remember not to do it.

[Jomann]

so could an lua noob like me learn c++ with this?

[Bubbletune]

Originally Posted by Jomann

so could an lua noob like me learn c++ with this?

I don't think so, these 3D tutorials are for already experienced people, I suggest you to read the tutorials at psp-programming.com to start off with

[yaustar]

Originally Posted by JumpR

I don't think so, these 3D tutorials are for already experienced people, I suggest you to read the tutorials at psp-programming.com to start off with

Not even that, psp-programming doesn't teach C++.

Read: http://parabellumgames.wordpress.com...c-programming/

[Jomann]

Originally Posted by JumpR

I don't think so, these 3D tutorials are for already experienced people, I suggest you to read the tutorials at psp-programming.com to start off with

oh ok thanks, i have already done so and made a program (hello world) so i will start again! thanks

[jyaan]

thanks