Example usage for org.lwjgl.opengl GL11 glBlendFunc

Introduction

In this page you can find the example usage for org.lwjgl.opengl GL11 glBlendFunc.

Prototype

public static void glBlendFunc(@NativeType("GLenum") int sfactor, @NativeType("GLenum") int dfactor) 

Source Link

Document

Specifies the weighting factors used by the blend equation, for both RGB and alpha functions and for all draw buffers.

Usage

From source file:fr.mcnanotech.kevin_68.nanotechmod.main.client.renderer.RenderSuperEnderman.java

License:Creative Commons License

protected int renderEyes(MobSuperEnderman mob, int par2, float par3) {
    if (par2 != 0) {
        return -1;
    } else {/*from ww w  .  java 2 s .c  o  m*/
        this.bindTexture(new ResourceLocation("textures/entity/enderman/enderman_eyes.png"));
        float var4 = 1.0F;
        GL11.glEnable(GL11.GL_BLEND);
        GL11.glDisable(GL11.GL_ALPHA_TEST);
        GL11.glBlendFunc(GL11.GL_ONE, GL11.GL_ONE);
        GL11.glDisable(GL11.GL_LIGHTING);
        char var5 = 61680;
        int var6 = var5 % 65536;
        int var7 = var5 / 65536;
        OpenGlHelper.setLightmapTextureCoords(OpenGlHelper.lightmapTexUnit, (float) var6 / 1.0F,
                (float) var7 / 1.0F);
        GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
        GL11.glEnable(GL11.GL_LIGHTING);
        GL11.glColor4f(1.0F, 1.0F, 1.0F, var4);
        return 1;
    }
}

---

From source file:fr.mcnanotech.kevin_68.nanotechmod.main.event.RenderEvent.java

License:Creative Commons License

@SubscribeEvent
public void onRenderGameOverlay(RenderGameOverlayEvent event) {
    if (event.isCancelable() || event.type != ElementType.EXPERIENCE) {
        return;/* www .  ja va 2 s .  com*/
    } else {
        ItemStack stack = this.mc.thePlayer.inventory.armorItemInSlot(3);
        if (this.mc.gameSettings.thirdPersonView == 0 && stack != null
                && stack.getItem().equals(NanotechItem.crazyGlasses)) {
            int k = event.resolution.getScaledWidth();
            int l = event.resolution.getScaledHeight();
            GL11.glEnable(GL11.GL_BLEND);
            GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
            GL11.glDisable(GL11.GL_LIGHTING);
            GL11.glDisable(GL11.GL_DEPTH_TEST);
            GL11.glDepthMask(false);
            GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
            this.mc.renderEngine.bindTexture(texture);
            Tessellator tessellator = Tessellator.instance;
            tessellator.startDrawingQuads();
            tessellator.addVertexWithUV(0.0D, (double) l, -90.0D, 0.0D, 1.0D);
            tessellator.addVertexWithUV((double) k, (double) l, -90.0D, 1.0D, 1.0D);
            tessellator.addVertexWithUV((double) k, 0.0D, -90.0D, 1.0D, 0.0D);
            tessellator.addVertexWithUV(0.0D, 0.0D, -90.0D, 0.0D, 0.0D);
            tessellator.draw();
            GL11.glDepthMask(true);
            GL11.glEnable(GL11.GL_DEPTH_TEST);
            GL11.glEnable(GL11.GL_ALPHA_TEST);
            GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
        }
    }
}

---

From source file:fr.theshark34.sharkengine.ui.components.Button.java

License:Apache License

/**
 * Draw the button/*from w w  w  .  jav a  2s.c om*/
 */
@Override
public void draw() {
    // Enabling blending
    GL11.glEnable(GL11.GL_BLEND);
    GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);

    // Being sure that texturing is disabled
    GL11.glDisable(GL11.GL_TEXTURE_2D);

    // Check if the mouse is on the button
    if (Mouse.getX() > this.x && Mouse.getX() < this.x + this.width
            && Mouse.getY() < Display.getHeight() - this.y
            && Mouse.getY() > Display.getHeight() - this.y - this.height) {

        // Changing button color to colorHover
        GL11.glColor4f((float) colorHover.getRed() / 255, (float) colorHover.getGreen() / 255,
                (float) colorHover.getBlue() / 255, (float) colorHover.getAlpha() / 255);

        // If the mouse clicked and clicked is false, executing action
        // and setting clicked to true, then the action will not be
        // repeated
        if (Mouse.isButtonDown(0)) {
            if (!clicked) {
                clicked = true;
                action.buttonClicked();
            }
        } else
            // If mouse isn't on it, setting clicked to false
            clicked = false;
    } else
        // Else, setting the color to the base color
        GL11.glColor4f((float) color.getRed() / 255, (float) color.getGreen() / 255,
                (float) color.getBlue() / 255, (float) color.getAlpha() / 255);

    // Drawing the button base (a rectangle)
    GL11.glBegin(GL11.GL_QUADS);
    {
        GL11.glVertex2f(x, y);
        GL11.glVertex2f(x + width, y);
        GL11.glVertex2f(x + width, y + height);
        GL11.glVertex2f(x, y + height);
    }
    GL11.glEnd();

    // Drawing the text
    this.font.drawString(x + (this.width - this.font.getWidth(text)) / 2,
            y + (this.height - this.font.getHeight(text)) / 2, text);

    // Disabling blending
    GL11.glDisable(GL11.GL_BLEND);
}

---

From source file:fr.theshark34.sharkengine.ui.components.Checkbox.java

License:Apache License

/**
 * Draw the checkbox/*w ww.  ja va2 s.c o m*/
 */
public void draw() {
    // Enabling blending
    GL11.glEnable(GL11.GL_BLEND);
    GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);

    // Being sure that texturing is disabled
    GL11.glDisable(GL11.GL_TEXTURE_2D);

    // Picking white color
    GL11.glColor3f(1.0F, 1.0F, 1.0F);

    // Drawing the checkbox
    GL11.glBegin(GL11.GL_QUADS);
    {
        GL11.glVertex2f(x, y);
        GL11.glVertex2f(x + width, y);
        GL11.glVertex2f(x + width, y + height);
        GL11.glVertex2f(x, y + height);
    }
    GL11.glEnd();

    // Drawing the text
    this.font.drawString(x + 25, y + (this.height - this.font.getHeight(text)) / 2, text);

    // Being sure that texturing is enabled
    GL11.glEnable(GL11.GL_TEXTURE_2D);

    // If the mouse is on the checkbox
    if (Mouse.getX() > this.x && Mouse.getX() < this.x + this.width
            && Mouse.getY() < Display.getHeight() - this.y
            && Mouse.getY() > Display.getHeight() - this.y - this.height)
        // If the mouse clicked and clicked is false, setting coched
        // to its oposite and setting clicked to true, so it will do
        // it one time
        if (Mouse.isButtonDown(0)) {
            if (!clicked) {
                clicked = true;
                coched = !coched;
            }
        } else
            // If mouse isn't on it, setting clicked to false
            clicked = false;

    // Checking if the checkbox is coched
    if (coched) {
        // Drawing coched checkbox texture
        GL11.glBindTexture(GL11.GL_TEXTURE_2D, cochedcb.getTextureID());

        // Drawing the image
        GL11.glBegin(GL11.GL_QUADS);
        {
            GL11.glTexCoord2f(0.0f, 0.0f);
            GL11.glVertex2f(x, y);
            GL11.glTexCoord2f(1.0f, 0.0f);
            GL11.glVertex2f(x + width, y);
            GL11.glTexCoord2f(1.0f, 1.0f);
            GL11.glVertex2f(x + width, y + height);
            GL11.glTexCoord2f(0.0f, 1.0f);
            GL11.glVertex2f(x, y + height);
        }
        GL11.glEnd();
    }

    // Disabling texture
    GL11.glDisable(GL11.GL_TEXTURE_2D);
    // Disabling blending
    GL11.glDisable(GL11.GL_BLEND);
}

---

From source file:fr.theshark34.sharkengine.ui.components.HorizontalSlider.java

License:Apache License

/**
 * Draw the slider//from  ww w .  j av  a 2  s.com
 */
@Override
public void draw() {
    // Enabling blending
    GL11.glEnable(GL11.GL_BLEND);
    GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);

    // Being sure that texturing is disabled
    GL11.glDisable(GL11.GL_TEXTURE_2D);

    // Check if the mouse is on the slider
    if (Mouse.getX() > this.x + this.sliderX && Mouse.getX() < this.x + this.sliderX + this.sliderWidth
            && Mouse.getY() < Display.getHeight() - this.y
            && Mouse.getY() > Display.getHeight() - this.y - this.height) {
        // If the mouse clicked and clicked is false, settings clicked to
        // true and saving mouse initial click
        if (Mouse.isButtonDown(0)) {
            if (!clicked) {
                clicked = true;
                mouseClick = Mouse.getX();
            }
        } else
            // If mouse isn't on it, setting clicked to false
            clicked = false;
    }
    // Setting clicked to false only when the mouse stop clicking
    else if (!Mouse.isButtonDown(0))
        clicked = false;

    // If mouse clicked
    if (clicked) {
        // If slider isn't on the minimum / maximum
        if (sliderX >= 0 && sliderX + sliderWidth <= width)
            if (sliderX + Mouse.getX() - mouseClick >= 0)
                if (sliderX + sliderWidth + Mouse.getX() - mouseClick <= width) {
                    sliderX += Mouse.getX() - mouseClick;
                    mouseClick = Mouse.getX();
                } else
                    sliderX = width - sliderWidth;
            else
                sliderX = 0;
    }

    // Picking the background color
    GL11.glColor4f((float) color.getRed() / 255, (float) color.getGreen() / 255, (float) color.getBlue() / 255,
            (float) color.getAlpha() / 255);

    // Drawing the slider background
    GL11.glBegin(GL11.GL_QUADS);
    {
        GL11.glVertex2f(x, y);
        GL11.glVertex2f(x + width, y);
        GL11.glVertex2f(x + width, y + height);
        GL11.glVertex2f(x, y + height);
    }
    GL11.glEnd();

    // Picking the slider color
    GL11.glColor4f((float) sliderColor.getRed() / 255, (float) sliderColor.getGreen() / 255,
            (float) sliderColor.getBlue() / 255, (float) sliderColor.getAlpha() / 255);

    // Drawing the slider
    GL11.glBegin(GL11.GL_QUADS);
    {
        GL11.glVertex2f(x + sliderX, y);
        GL11.glVertex2f(x + sliderX + sliderWidth, y);
        GL11.glVertex2f(x + sliderX + sliderWidth, y + height);
        GL11.glVertex2f(x + sliderX, y + height);
    }
    GL11.glEnd();
}

---

From source file:fr.theshark34.sharkengine.ui.components.Image.java

License:Apache License

/**
 * Draw it/*from w w w .ja  v a  2  s .c  om*/
 */
@Override
public void draw() {
    // Without this, image can render strangely
    GL11.glColor3f(1.0F, 1.0F, 1.0F);

    // Enabling blend and texture
    GL11.glEnable(GL11.GL_BLEND);
    GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
    GL11.glEnable(GL11.GL_TEXTURE_2D);
    GL11.glBindTexture(GL11.GL_TEXTURE_2D, texture.getTextureID());

    // Drawing the image
    GL11.glBegin(GL11.GL_QUADS);
    {
        GL11.glTexCoord2f(0.0f, 0.0f);
        GL11.glVertex2f(x, y);
        GL11.glTexCoord2f(1.0f, 0.0f);
        GL11.glVertex2f(x + width, y);
        GL11.glTexCoord2f(1.0f, 1.0f);
        GL11.glVertex2f(x + width, y + height);
        GL11.glTexCoord2f(0.0f, 1.0f);
        GL11.glVertex2f(x, y + height);
    }
    GL11.glEnd();

    // Disabling blend and texture
    GL11.glDisable(GL11.GL_BLEND);
    GL11.glDisable(GL11.GL_TEXTURE_2D);
    GL11.glBindTexture(GL11.GL_TEXTURE_2D, 0);
}

---

From source file:fr.theshark34.sharkengine.ui.components.ProgressBar.java

License:Apache License

/**
 * Draw the bar//from  w w  w.  j a  v  a2  s  .co  m
 */
@Override
public void draw() {
    // Enabling blending
    GL11.glEnable(GL11.GL_BLEND);
    GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);

    // Being sure that texture is disabled
    GL11.glDisable(GL11.GL_TEXTURE_2D);

    // Picking the base color
    GL11.glColor4f((float) color.getRed() / 255, (float) color.getGreen() / 255, (float) color.getBlue() / 255,
            (float) color.getAlpha() / 255);

    // Drawing the base
    GL11.glBegin(GL11.GL_QUADS);
    {
        GL11.glVertex2f(x, y);
        GL11.glVertex2f(x + width, y);
        GL11.glVertex2f(x + width, y + height);
        GL11.glVertex2f(x, y + height);
    }
    GL11.glEnd();

    if (value != 0 && maximum != 0) {
        // Picking the foreground color
        GL11.glColor4f((float) fgColor.getRed() / 255, (float) fgColor.getGreen() / 255,
                (float) fgColor.getBlue() / 255, (float) fgColor.getAlpha() / 255);

        int fgWidth = (int) (width / ((float) maximum / (float) value));

        // Drawing the foreground
        GL11.glBegin(GL11.GL_QUADS);
        {
            GL11.glVertex2f(x, y);
            GL11.glVertex2f(x + fgWidth, y);
            GL11.glVertex2f(x + fgWidth, y + height);
            GL11.glVertex2f(x, y + height);
        }
        GL11.glEnd();
    }

    // Drawing the text
    this.font.drawString(x + (this.width - this.font.getWidth(string)) / 2,
            y + (this.height - this.font.getHeight(string)) / 2, string);

    // Disabling blending
    GL11.glDisable(GL11.GL_BLEND);
}

---

From source file:fr.theshark34.sharkengine.ui.components.VerticalSlider.java

License:Apache License

/**
 * Draw the slider/*from  w w  w  .  j  a v  a2  s.c  o m*/
 */
@Override
public void draw() {
    // Enabling blending
    GL11.glEnable(GL11.GL_BLEND);
    GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);

    // Being sure that texturing is disabled
    GL11.glDisable(GL11.GL_TEXTURE_2D);

    // Check if the mouse is on the slider
    if (Mouse.getX() > this.x && Mouse.getX() < this.x + width
            && Mouse.getY() < Display.getHeight() - this.y + this.sliderY
            && Mouse.getY() > Display.getHeight() - this.y - this.sliderY - this.sliderHeight) {
        // If the mouse clicked and clicked is false, settings clicked to
        // true and saving mouse initial click
        if (Mouse.isButtonDown(0)) {
            if (!clicked) {
                clicked = true;
                mouseClick = Display.getHeight() - Mouse.getY();
            }
        } else
            // If mouse isn't on it, setting clicked to false
            clicked = false;
    }
    // Setting clicked to false only when the mouse stop clicking
    else if (!Mouse.isButtonDown(0))
        clicked = false;

    // If mouse clicked
    if (clicked) {

        // If slider isn't on the minimum / maximum
        if (sliderY >= 0 && sliderY + sliderHeight <= height)
            if (sliderY + Display.getHeight() - Mouse.getY() - mouseClick >= 0)
                if (sliderY + sliderHeight + Display.getHeight() - Mouse.getY() - mouseClick <= height) {
                    sliderY += Display.getHeight() - Mouse.getY() - mouseClick;
                    mouseClick = Display.getHeight() - Mouse.getY();
                } else
                    sliderY = height - sliderHeight;
            else
                sliderY = 0;
    }
    // Picking the background color
    GL11.glColor4f((float) color.getRed() / 255, (float) color.getGreen() / 255, (float) color.getBlue() / 255,
            (float) color.getAlpha() / 255);

    // Drawing the slider background
    GL11.glBegin(GL11.GL_QUADS);
    {
        GL11.glVertex2f(x, y);
        GL11.glVertex2f(x + width, y);
        GL11.glVertex2f(x + width, y + height);
        GL11.glVertex2f(x, y + height);
    }
    GL11.glEnd();

    // Picking the slider color
    GL11.glColor4f((float) sliderColor.getRed() / 255, (float) sliderColor.getGreen() / 255,
            (float) sliderColor.getBlue() / 255, (float) sliderColor.getAlpha() / 255);

    // Drawing the slider
    GL11.glBegin(GL11.GL_QUADS);
    {
        GL11.glVertex2f(x, y + sliderY);
        GL11.glVertex2f(x + width, y + sliderY);
        GL11.glVertex2f(x + width, y + sliderY + sliderHeight);
        GL11.glVertex2f(x, y + sliderY + sliderHeight);
    }
    GL11.glEnd();
}

---

From source file:game.engine.game.Scene.java

License:Open Source License

/**
 * Draws the screen contents using OpenGL.
 *//*from   w w w.  j ava 2 s . com*/
public void draw() {
    GL11.glMatrixMode(GL11.GL_PROJECTION);
    GL11.glLoadIdentity();
    GL11.glOrtho(0, getScreenWidthUnits(), getScreenHeightUnits(), 0, -1, 1);
    GL11.glMatrixMode(GL11.GL_MODELVIEW);
    GL11.glLoadIdentity();
    GL11.glTranslatef(-screenX, -screenY, 0.0f);
    GL11.glEnable(GL11.GL_BLEND);
    GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
    GL11.glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
    GL11.glClear(GL11.GL_COLOR_BUFFER_BIT);
    for (GameObject gameObject : gameObjects) {
        gameObject.draw();
    }
}

---

From source file:game.states.State_PREFAB_EDITOR.java

License:Open Source License

@Override
protected void Init() {
    ButtonGUILayer = new GUI_Layer();
    ButtonGUILayer.SetEnabled(true);//from   w  w  w .  ja  v a 2 s .c  o m
    MenuGUILayer = new GUI_Layer();
    MenuGUILayer.SetEnabled(false);
    int ButtonStartX = 712;
    int ButtonStartY = 600;
    float xScale = 1.5f;
    float yScale = 1.5f;
    int Spacing = 145;
    int menuButtonStartX = 640 - 128;
    int menuButtonStartY = 150;
    float menuXScale = 1f;
    float menuYScale = 1f;
    int menuSpacing = 110;
    try {
        GL11.glEnable(GL11.GL_TEXTURE_2D);
        BackGroundImage = TextureLoader.getTexture("PNG",
                ResourceLoader.getResourceAsStream("res/Materials/GUI/UI/GUIPrefab.png"));
        Texture button1 = TextureLoader.getTexture("PNG",
                ResourceLoader.getResourceAsStream("res/Materials/GUI/UI/SaveIconButton.png"), false,
                GL11.GL_NEAREST);
        ButtonGUILayer.AddButton(ButtonStartX + Spacing * 0, ButtonStartY,
                (int) (button1.getImageWidth() * xScale), (int) (button1.getImageHeight() * yScale), button1);
        Texture button2 = TextureLoader.getTexture("PNG",
                ResourceLoader.getResourceAsStream("res/Materials/GUI/UI/LoadIconButton.png"), false,
                GL11.GL_NEAREST);
        ButtonGUILayer.AddButton(ButtonStartX + Spacing * 1, ButtonStartY,
                (int) (button2.getImageWidth() * xScale), (int) (button2.getImageHeight() * yScale), button2);
        Texture button3 = TextureLoader.getTexture("PNG",
                ResourceLoader.getResourceAsStream("res/Materials/GUI/UI/OptionsIconButton.png"), false,
                GL11.GL_NEAREST);
        ButtonGUILayer.AddButton(ButtonStartX + Spacing * 2, ButtonStartY,
                (int) (button3.getImageWidth() * xScale), (int) (button3.getImageHeight() * yScale), button3);
        Texture button4 = TextureLoader.getTexture("PNG",
                ResourceLoader.getResourceAsStream("res/Materials/GUI/UI/HelpIconButton.png"), false,
                GL11.GL_NEAREST);
        ButtonGUILayer.AddButton(ButtonStartX + Spacing * 3, ButtonStartY,
                (int) (button4.getImageWidth() * xScale), (int) (button4.getImageHeight() * yScale), button4);

        Texture mButton0 = TextureLoader.getTexture("PNG",
                ResourceLoader.getResourceAsStream("res/Materials/GUI/Buttons/ReturnButton.png"), false,
                GL11.GL_NEAREST);
        MenuGUILayer.AddButton(menuButtonStartX, menuButtonStartY + menuSpacing * 0,
                (int) (mButton0.getImageWidth() * menuXScale), (int) (mButton0.getImageHeight() * menuYScale),
                mButton0);
        Texture mButton1 = TextureLoader.getTexture("PNG",
                ResourceLoader.getResourceAsStream("res/Materials/GUI/Buttons/LoadButton.png"), false,
                GL11.GL_NEAREST);
        MenuGUILayer.AddButton(menuButtonStartX, menuButtonStartY + menuSpacing * 1,
                (int) (mButton1.getImageWidth() * menuXScale), (int) (mButton1.getImageHeight() * menuYScale),
                mButton1);
        Texture mButton2 = TextureLoader.getTexture("PNG",
                ResourceLoader.getResourceAsStream("res/Materials/GUI/Buttons/SaveButton.png"), false,
                GL11.GL_NEAREST);
        MenuGUILayer.AddButton(menuButtonStartX, menuButtonStartY + menuSpacing * 2,
                (int) (mButton2.getImageWidth() * menuXScale), (int) (mButton2.getImageHeight() * menuYScale),
                mButton2);
        Texture mButton3 = TextureLoader.getTexture("PNG",
                ResourceLoader.getResourceAsStream("res/Materials/GUI/Buttons/BackButton.png"), false,
                GL11.GL_NEAREST);
        MenuGUILayer.AddButton(menuButtonStartX, menuButtonStartY + menuSpacing * 3,
                (int) (mButton3.getImageWidth() * menuXScale), (int) (mButton3.getImageHeight() * menuYScale),
                mButton3);

    } catch (IOException e) {
        e.printStackTrace();
    }

    GL11.glEnable(GL11.GL_LIGHTING);
    GL11.glEnable(GL11.GL_LIGHT0);
    GL11.glEnableClientState(GL11.GL_NORMAL_ARRAY);
    GL11.glEnableClientState(GL11.GL_COLOR_ARRAY);
    GL11.glMatrixMode(GL11.GL_PROJECTION);
    GL11.glLoadIdentity();

    GLU.gluPerspective(45.0f, (float) Display.getWidth() / (float) Display.getHeight(), 0.1f, 600.0f);
    GLU.gluLookAt(0, 20, 50, 0, -2, -100, 0, -1, 0);
    GL11.glMatrixMode(GL11.GL_MODELVIEW);
    GL11.glLoadIdentity();

    GL11.glEnable(GL11.GL_TEXTURE_2D);
    GL11.glEnable(GL11.GL_BLEND);
    GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
}

---

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