Examples with GL_BLEND org.lwjgl.opengl.GL11.GL_BLEND used on opensource projects

Example 1 with GL_BLEND

use of org.lwjgl.opengl.GL11.GL_BLEND in project LogisticsPipes by RS485.

the class RenderTickHandler method renderWorldLast.

//private static final ResourceLocation TEXTURE = new ResourceLocation("logisticspipes", "textures/blocks/pipes/White.png");
@SubscribeEvent
public void renderWorldLast(RenderWorldLastEvent worldEvent) {
    if (LogisticsRenderPipe.config.isUseNewRenderer()) {
        if (displayPipeGhost()) {
            Minecraft mc = Minecraft.getMinecraft();
            EntityPlayer player = mc.thePlayer;
            MovingObjectPosition box = mc.objectMouseOver;
            if (box != null && box.typeOfHit == MovingObjectType.BLOCK) {
                ItemStack stack = FMLClientHandler.instance().getClient().thePlayer.inventory.mainInventory[FMLClientHandler.instance().getClient().thePlayer.inventory.currentItem];
                CoreUnroutedPipe pipe = ((ItemLogisticsPipe) stack.getItem()).getDummyPipe();
                int i = box.blockX;
                int j = box.blockY;
                int k = box.blockZ;
                World world = player.getEntityWorld();
                int side = box.sideHit;
                Block worldBlock = world.getBlock(i, j, k);
                if (worldBlock == Blocks.snow) {
                    side = 1;
                } else if (worldBlock != Blocks.vine && worldBlock != Blocks.tallgrass && worldBlock != Blocks.deadbush && (worldBlock == null || !worldBlock.isReplaceable(world, i, j, k))) {
                    if (side == 0) {
                        j--;
                    }
                    if (side == 1) {
                        j++;
                    }
                    if (side == 2) {
                        k--;
                    }
                    if (side == 3) {
                        k++;
                    }
                    if (side == 4) {
                        i--;
                    }
                    if (side == 5) {
                        i++;
                    }
                }
                double xCoord = i;
                double yCoord = j;
                double zCoord = k;
                boolean isFreeSpace = true;
                ITubeOrientation orientation = null;
                if (pipe instanceof CoreMultiBlockPipe) {
                    CoreMultiBlockPipe multipipe = (CoreMultiBlockPipe) pipe;
                    DoubleCoordinates placeAt = new DoubleCoordinates(xCoord, yCoord, zCoord);
                    LPPositionSet<DoubleCoordinatesType<CoreMultiBlockPipe.SubBlockTypeForShare>> globalPos = new LPPositionSet<>(DoubleCoordinatesType.class);
                    globalPos.add(new DoubleCoordinatesType<>(placeAt, CoreMultiBlockPipe.SubBlockTypeForShare.NON_SHARE));
                    LPPositionSet<DoubleCoordinatesType<CoreMultiBlockPipe.SubBlockTypeForShare>> positions = multipipe.getSubBlocks();
                    orientation = multipipe.getTubeOrientation(player, (int) xCoord, (int) zCoord);
                    if (orientation != null) {
                        orientation.rotatePositions(positions);
                        positions.stream().map(pos -> pos.add(placeAt)).forEach(globalPos::add);
                        globalPos.addToAll(orientation.getOffset());
                        for (DoubleCoordinatesType<CoreMultiBlockPipe.SubBlockTypeForShare> pos : globalPos) {
                            if (!player.getEntityWorld().canPlaceEntityOnSide(LogisticsPipes.LogisticsPipeBlock, pos.getXInt(), pos.getYInt(), pos.getZInt(), false, side, player, stack)) {
                                TileEntity tile = player.getEntityWorld().getTileEntity(pos.getXInt(), pos.getYInt(), pos.getZInt());
                                boolean canPlace = false;
                                if (tile instanceof LogisticsTileGenericSubMultiBlock) {
                                    if (CoreMultiBlockPipe.canShare(((LogisticsTileGenericSubMultiBlock) tile).getSubTypes(), pos.getType())) {
                                        canPlace = true;
                                    }
                                }
                                if (!canPlace) {
                                    isFreeSpace = false;
                                    break;
                                }
                            }
                        }
                    } else {
                        return;
                    }
                } else {
                    if (!player.getEntityWorld().canPlaceEntityOnSide(LogisticsPipes.LogisticsPipeBlock, i, j, k, false, side, player, stack)) {
                        isFreeSpace = false;
                    }
                }
                if (isFreeSpace) {
                    GL11.glPushMatrix();
                    double x;
                    double y;
                    double z;
                    if (orientation != null) {
                        x = xCoord + orientation.getOffset().getXInt() - player.prevPosX - ((player.posX - player.prevPosX) * worldEvent.partialTicks);
                        y = yCoord + orientation.getOffset().getYInt() - player.prevPosY - ((player.posY - player.prevPosY) * worldEvent.partialTicks);
                        z = zCoord + orientation.getOffset().getZInt() - player.prevPosZ - ((player.posZ - player.prevPosZ) * worldEvent.partialTicks);
                    } else {
                        x = xCoord - player.prevPosX - ((player.posX - player.prevPosX) * worldEvent.partialTicks);
                        y = yCoord - player.prevPosY - ((player.posY - player.prevPosY) * worldEvent.partialTicks);
                        z = zCoord - player.prevPosZ - ((player.posZ - player.prevPosZ) * worldEvent.partialTicks);
                    }
                    GL11.glTranslated(x + 0.001, y + 0.001, z + 0.001);
                    GL11.glEnable(GL11.GL_BLEND);
                    //GL11.glDepthMask(false);
                    GL11.glDisable(GL11.GL_TEXTURE_2D);
                    GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
                    mc.renderEngine.bindTexture(new ResourceLocation("logisticspipes", "textures/blocks/pipes/White.png"));
                    Tessellator tess = Tessellator.instance;
                    CCRenderState.reset();
                    CCRenderState.useNormals = true;
                    CCRenderState.alphaOverride = 0xff;
                    GL11.glEnable(GL11.GL_TEXTURE_2D);
                    CCRenderState.alphaOverride = 0x50;
                    CCRenderState.useNormals = true;
                    CCRenderState.hasBrightness = false;
                    CCRenderState.startDrawing();
                    pipe.getHighlightRenderer().renderHighlight(orientation);
                    tess.draw();
                    CCRenderState.alphaOverride = 0xff;
                    GL11.glDisable(GL11.GL_BLEND);
                    GL11.glDepthMask(true);
                    GL11.glPopMatrix();
                }
            }
        }
    }
}

Example 2 with GL_BLEND

use of org.lwjgl.opengl.GL11.GL_BLEND in project chunkstories by Hugobros3.

the class GLFWGameWindow method displaySplashScreen.

@SuppressWarnings("unused")
private void displaySplashScreen() throws IOException {
    int texture = glGenTextures();
    InputStream is = getClass().getResourceAsStream("/splash.png");
    PNGDecoder decoder = new PNGDecoder(is);
    int width = decoder.getWidth();
    int height = decoder.getHeight();
    ByteBuffer temp = ByteBuffer.allocateDirect(4 * width * height);
    decoder.decode(temp, width * 4, Format.RGBA);
    is.close();
    // ChunkStoriesLogger.getInstance().log("decoded " + width + " by " + height + " pixels (" + name + ")", ChunkStoriesLogger.LogType.RENDERING, ChunkStoriesLogger.LogLevel.DEBUG);
    temp.flip();
    glActiveTexture(GL_TEXTURE0);
    glBindTexture(GL_TEXTURE_2D, texture);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, (ByteBuffer) temp);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
    int shaderProgramId = glCreateProgram();
    int vertexShaderId = glCreateShader(GL_VERTEX_SHADER);
    int fragShaderId = glCreateShader(GL_FRAGMENT_SHADER);
    String vertexSource = "#version 330\n\n\nin vec3 vertexIn;\nout vec2 texCoord;\nuniform float ratio;\n\nvoid main()\n{\ngl_Position = vec4(vertexIn.x*ratio, vertexIn.y, 0.0, 1.0);\ntexCoord = vertexIn.xy*0.5+0.5;\n}";
    String fragSource = "#version 330\nuniform sampler2D diffuseTexture;\n\nin vec2 texCoord;\nout vec4 fragColor;\n\nvoid main()\n{\nfragColor = texture(diffuseTexture, vec2(texCoord.x, 1.0-texCoord.y));\n}\n";
    // System.out.println(vertexSource);
    // System.out.println(fragSource);
    glShaderSource(vertexShaderId, vertexSource);
    glCompileShader(vertexShaderId);
    glBindFragDataLocation(shaderProgramId, 0, "fragColor");
    glShaderSource(fragShaderId, fragSource);
    glCompileShader(fragShaderId);
    glAttachShader(shaderProgramId, vertexShaderId);
    glAttachShader(shaderProgramId, fragShaderId);
    glLinkProgram(shaderProgramId);
    glUseProgram(shaderProgramId);
    int uniformLocation = glGetUniformLocation(shaderProgramId, "diffuseTexture");
    // glUniform2f(uniformLocation, ((Vector2fc)uniformData).x(), ((Vector2fc)uniformData).y());
    glUniform1i(uniformLocation, (Integer) 0);
    float ratio = (float) windowHeight / windowWidth;
    uniformLocation = glGetUniformLocation(shaderProgramId, "ratio");
    glUniform1f(uniformLocation, ratio);
    glValidateProgram(shaderProgramId);
    FloatBuffer fsQuadBuffer = BufferUtils.createFloatBuffer(6 * 2);
    fsQuadBuffer.put(new float[] { 1f, 1f, -1f, -1f, 1f, -1f, 1f, 1f, -1f, 1f, -1f, -1f });
    fsQuadBuffer.flip();
    int vertexBuffer = glGenBuffers();
    glBindBuffer(GL_ARRAY_BUFFER, vertexBuffer);
    glBufferData(GL_ARRAY_BUFFER, (FloatBuffer) fsQuadBuffer, GL_STATIC_DRAW);
    int location = glGetAttribLocation(shaderProgramId, "vertexIn");
    glEnableVertexAttribArray(location);
    glVertexAttribPointer(location, 2, GL_FLOAT, false, 0, 0L);
    glEnable(GL_BLEND);
    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
    // while(1 - Math.floor(1) == 0 && !glfwWindowShouldClose(glfwWindowHandle))
    {
        glClearColor(0.25f, 0.25f, 0.25f, 1f);
        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
        // Draw happens here
        glDrawArrays(GL_TRIANGLES, 0, 6);
        glfwSwapBuffers(glfwWindowHandle);
        glfwPollEvents();
    }
    glDisable(GL_BLEND);
    glDisableVertexAttribArray(location);
    glBindBuffer(GL_ARRAY_BUFFER, 0);
    glDeleteBuffers(vertexBuffer);
    glBindTexture(GL_TEXTURE_2D, 0);
    glDeleteTextures(texture);
    glUseProgram(0);
    glDeleteProgram(shaderProgramId);
    glDeleteShader(vertexShaderId);
    glDeleteShader(fragShaderId);
    glClearColor(0.0f, 0.0f, 0.0f, 1f);
}