GuiMainMenu.java 文件源码

/**
 * Renders the skybox in the main menu
 */
private void renderSkybox(int mouseX, int mouseY, float partialTicks) {
    this.mc.getFramebuffer().unbindFramebuffer();
    GlStateManager.viewport(0, 0, 256, 256);
    this.drawPanorama(mouseX, mouseY, partialTicks);
    this.rotateAndBlurSkybox(partialTicks);
    int i = 3;
    CustomPanoramaProperties custompanoramaproperties = CustomPanorama.getCustomPanoramaProperties();

    if (custompanoramaproperties != null) {
        i = custompanoramaproperties.getBlur3();
    }

    for (int j = 0; j < i; ++j) {
        this.rotateAndBlurSkybox(partialTicks);
        this.rotateAndBlurSkybox(partialTicks);
    }

    this.mc.getFramebuffer().bindFramebuffer(true);
    GlStateManager.viewport(0, 0, this.mc.displayWidth, this.mc.displayHeight);
    float f2 = 120.0F / (float) (this.width > this.height ? this.width : this.height);
    float f = (float) this.height * f2 / 256.0F;
    float f1 = (float) this.width * f2 / 256.0F;
    int k = this.width;
    int l = this.height;
    Tessellator tessellator = Tessellator.getInstance();
    VertexBuffer vertexbuffer = tessellator.getBuffer();
    vertexbuffer.begin(7, DefaultVertexFormats.POSITION_TEX_COLOR);
    vertexbuffer.pos(0.0D, (double) l, (double) this.zLevel).tex((double) (0.5F - f), (double) (0.5F + f1))
            .color(1.0F, 1.0F, 1.0F, 1.0F).endVertex();
    vertexbuffer.pos((double) k, (double) l, (double) this.zLevel).tex((double) (0.5F - f), (double) (0.5F - f1))
            .color(1.0F, 1.0F, 1.0F, 1.0F).endVertex();
    vertexbuffer.pos((double) k, 0.0D, (double) this.zLevel).tex((double) (0.5F + f), (double) (0.5F - f1))
            .color(1.0F, 1.0F, 1.0F, 1.0F).endVertex();
    vertexbuffer.pos(0.0D, 0.0D, (double) this.zLevel).tex((double) (0.5F + f), (double) (0.5F + f1))
            .color(1.0F, 1.0F, 1.0F, 1.0F).endVertex();
    tessellator.draw();
}