LWJGL Forum

Hello

I wanna make simple clouds built from quads.

So i made Cloud class and i init it from my Main by using:

Cloud.init(52.0f)

but clouds are not rendered

Cloud.java:
package skatty.enviroment;

import java.util.Random;
import org.lwjgl.opengl.GL11;

import skatty.Main;
import skatty.World;

public class Cloud {

static float SKYheight = 0.7f;
static float SKYwidth = 1.5f;
static float SKYlength = 1.5f;
static float textureSize = 1.0f;
static float spriteX = 0.0f;
static float spriteY = 0.0f;
static float height;
static float x1 = 0.0f;
static float y1 = height;
static float z1 = 0.0f;


Random generator;

public static void init(float CloudsHeight) {
height = CloudsHeight;
System.out.println(height);
render();
}


public static void generateClouds(int side) {
switch(side) {

case 1: //bot
Main.sky.bind();
GL11.glBegin(GL11.GL_LINE_LOOP);
GL11.glBegin(GL11.GL_TRIANGLES);
GL11.glTexCoord2f(spriteX, spriteY);
GL11.glVertex3f(x1, y1, z1); // 1
GL11.glTexCoord2f(spriteX, spriteY + textureSize);
GL11.glVertex3f(x1, y1, z1+SKYlength); // 2
GL11.glTexCoord2f(spriteX + textureSize, spriteY + textureSize);
GL11.glVertex3f(x1+SKYwidth, y1, z1+SKYlength); // 3
 
GL11.glTexCoord2f(spriteX, spriteY);
GL11.glVertex3f(x1, y1, z1); // 1
GL11.glTexCoord2f(spriteX + textureSize, spriteY);
GL11.glVertex3f(x1 + SKYwidth, y1, z1); // 2
GL11.glTexCoord2f(spriteX + textureSize, spriteY + textureSize);
GL11.glVertex3f(x1+SKYwidth, y1, z1+SKYlength); // 3
GL11.glEnd();
break;

case 2: //top

GL11.glBegin(GL11.GL_TRIANGLES);
GL11.glTexCoord2f(spriteX, spriteY);
GL11.glVertex3f(x1, y1 + SKYheight, z1); // 1
GL11.glTexCoord2f(spriteX, spriteY + textureSize);
GL11.glVertex3f(x1, y1 + SKYheight, z1+SKYlength); // 2
GL11.glTexCoord2f(spriteX + textureSize, spriteY + textureSize);
GL11.glVertex3f(x1+SKYwidth, y1 + SKYheight, z1+SKYlength); // 3
 
GL11.glTexCoord2f(spriteX, spriteY);
GL11.glVertex3f(x1, y1 + SKYheight, z1); // 1
GL11.glTexCoord2f(spriteX + textureSize, spriteY);
GL11.glVertex3f(x1 + SKYwidth, y1 + SKYheight, z1); // 2
GL11.glTexCoord2f(spriteX + textureSize, spriteY + textureSize);
GL11.glVertex3f(x1+SKYwidth, y1 + SKYheight, z1+SKYlength); // 3
GL11.glEnd();
break;

case 3: //back

GL11.glBegin(GL11.GL_TRIANGLES);
GL11.glTexCoord2f(spriteX, spriteY);
GL11.glVertex3f(x1, y1, z1); // 1
GL11.glTexCoord2f(spriteX + textureSize, spriteY);
GL11.glVertex3f(x1, y1, z1 + SKYlength); // 2
GL11.glTexCoord2f(spriteX + textureSize, spriteY + textureSize);
GL11.glVertex3f(x1, y1 + SKYheight, z1+SKYlength); // 3
 
GL11.glTexCoord2f(spriteX, spriteY);
GL11.glVertex3f(x1, y1, z1); // 1
GL11.glTexCoord2f(spriteX, spriteY + textureSize);
GL11.glVertex3f(x1, y1 + SKYheight, z1); // 2
GL11.glTexCoord2f(spriteX + textureSize, spriteY + textureSize);
GL11.glVertex3f(x1, y1 + SKYheight, z1+SKYlength); // 3
GL11.glEnd();
break;

case 4: //front

GL11.glBegin(GL11.GL_TRIANGLES);
GL11.glTexCoord2f(spriteX, spriteY);
GL11.glVertex3f(x1 + SKYwidth, y1, z1); // 1
GL11.glTexCoord2f(spriteX + textureSize, spriteY);
GL11.glVertex3f(x1 + SKYwidth, y1, z1 + SKYlength); // 2
GL11.glTexCoord2f(spriteX + textureSize, spriteY + textureSize);
GL11.glVertex3f(x1 + SKYwidth, y1 + SKYheight, z1+SKYlength); // 3
 
GL11.glTexCoord2f(spriteX, spriteY);
GL11.glVertex3f(x1 + SKYwidth, y1, z1); // 1
GL11.glTexCoord2f(spriteX, spriteY + textureSize);
GL11.glVertex3f(x1 + SKYwidth, y1 + SKYheight, z1); // 2
GL11.glTexCoord2f(spriteX + textureSize, spriteY + textureSize);
GL11.glVertex3f(x1 + SKYwidth, y1 + SKYheight, z1+SKYlength); // 3
GL11.glEnd();
break;

case 5: //left

GL11.glBegin(GL11.GL_TRIANGLES);
GL11.glTexCoord2f(spriteX, spriteY);
GL11.glVertex3f(x1, y1, z1+SKYlength); // 1
GL11.glTexCoord2f(spriteX, spriteY + textureSize);
GL11.glVertex3f(x1, y1 + SKYheight, z1+SKYlength); // 2
GL11.glTexCoord2f(spriteX + textureSize, spriteY + textureSize);
GL11.glVertex3f(x1 + SKYwidth, y1 + SKYheight, z1+SKYlength); // 3
 
GL11.glTexCoord2f(spriteX, spriteY);
GL11.glVertex3f(x1, y1, z1+SKYlength); // 1
GL11.glTexCoord2f(spriteX+ textureSize, spriteY);
GL11.glVertex3f(x1 + SKYwidth, y1, z1+SKYlength); // 2
GL11.glTexCoord2f(spriteX + textureSize, spriteY + textureSize);
GL11.glVertex3f(x1 + SKYwidth, y1 + SKYheight, z1+SKYlength); // 3
GL11.glEnd();
break;

case 6: //right

GL11.glBegin(GL11.GL_TRIANGLES);
GL11.glTexCoord2f(spriteX, spriteY);
GL11.glVertex3f(x1, y1, z1); // 1
GL11.glTexCoord2f(spriteX, spriteY + textureSize);
GL11.glVertex3f(x1, y1 + SKYheight, z1); // 2
GL11.glTexCoord2f(spriteX + textureSize, spriteY + textureSize);
GL11.glVertex3f(x1 + SKYwidth, y1 + SKYheight, z1); // 3
 
GL11.glTexCoord2f(spriteX, spriteY);
GL11.glVertex3f(x1, y1, z1); // 1
GL11.glTexCoord2f(spriteX+ textureSize, spriteY);
GL11.glVertex3f(x1 + SKYwidth, y1, z1); // 2
GL11.glTexCoord2f(spriteX + textureSize, spriteY + textureSize);
GL11.glVertex3f(x1 + SKYwidth, y1 + SKYheight, z1); // 3
GL11.glEnd();
break;
}
}

public static void render() {
GL11.glColor3f(1, 1, 1);
GL11.glBegin(GL11.GL_TRIANGLES);
for (int a = 0; a < World.BLOCK_AMOUNT_AT_AXIS/4; a++) {
for (int b = 0; b < World.BLOCK_AMOUNT_AT_AXIS/4; b++) {
generateClouds(1);
generateClouds(2);
generateClouds(3);
generateClouds(4);
generateClouds(5);
generateClouds(6);
}
}
GL11.glEnd();

}
}


The first thing that jumps out at me is:
GL11.glBegin(GL11.GL_LINE_LOOP);
GL11.glBegin(GL11.GL_TRIANGLES);

You can't call a glBegin() inside a glBegin()/glEnd().