RenderSkyVC.java 文件源码

private void generateSky() {
    Tessellator tessellator = Tessellator.getInstance();
    WorldRenderer worldrenderer = tessellator.getWorldRenderer();

    if (this.skyVBO != null) {
        this.skyVBO.deleteGlBuffers();
    }

    if (this.glSkyList >= 0) {
        GLAllocation.deleteDisplayLists(this.glSkyList);
        this.glSkyList = -1;
    }

    if (this.vboEnabled) {
        this.skyVBO = new VertexBuffer(this.vertexBufferFormat);
        this.renderSky(worldrenderer, 16.0F, false);
        worldrenderer.finishDrawing();
        worldrenderer.reset();
        this.skyVBO.bufferData(worldrenderer.getByteBuffer(), worldrenderer.getByteIndex());
    }
    else {
        this.glSkyList = GLAllocation.generateDisplayLists(1);
        GL11.glNewList(this.glSkyList, GL11.GL_COMPILE);
        this.renderSky(worldrenderer, 16.0F, false);
        tessellator.draw();
        GL11.glEndList();
    }
}