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Java GL4.glClearBufferSubData方法代码示例

本文整理汇总了Java中com.jogamp.opengl.GL4.glClearBufferSubData方法的典型用法代码示例。如果您正苦于以下问题:Java GL4.glClearBufferSubData方法的具体用法?Java GL4.glClearBufferSubData怎么用?Java GL4.glClearBufferSubData使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在com.jogamp.opengl.GL4的用法示例。


在下文中一共展示了GL4.glClearBufferSubData方法的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。

示例1: render

import com.jogamp.opengl.GL4; //导入方法依赖的package包/类
@Override
protected boolean render(GL gl) {

    GL4 gl4 = (GL4) gl;

    gl4.glBindBuffer(GL_ATOMIC_COUNTER_BUFFER, bufferName.get(Buffer.ATOMIC_COUNTER));
    int[] data = {0};
    IntBuffer dataBuffer = GLBuffers.newDirectIntBuffer(data);
    gl4.glClearBufferSubData(GL_ATOMIC_COUNTER_BUFFER, GL_R8UI, 0, Integer.BYTES, GL_RGBA, GL_UNSIGNED_INT,
            dataBuffer);
    BufferUtils.destroyDirectBuffer(dataBuffer);

    gl4.glViewportIndexedf(0, 0, 0, windowSize.x, windowSize.y);

    gl4.glBindProgramPipeline(pipelineName.get(0));
    gl4.glBindVertexArray(vertexArrayName.get(0));
    gl4.glBindBufferBase(GL_ATOMIC_COUNTER_BUFFER, 0, bufferName.get(Buffer.ATOMIC_COUNTER));

    gl4.glDrawArraysInstancedBaseInstance(GL_TRIANGLES, 0, 3, 1, 0);

    return true;
}
 
开发者ID:java-opengl-labs,项目名称:jogl-samples,代码行数:23,代码来源:Gl_440_atomic_counter.java

示例2: render

import com.jogamp.opengl.GL4; //导入方法依赖的package包/类
@Override
protected boolean render(GL gl) {

    GL4 gl4 = (GL4) gl;

    // Setup blending
    gl4.glEnable(GL_BLEND);
    gl4.glBlendEquation(GL_FUNC_ADD);
    gl4.glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

    {
        gl4.glBindBuffer(GL_UNIFORM_BUFFER, bufferName.get(Buffer.TRANSFORM));
        ByteBuffer pointer = gl4.glMapBufferRange(
                GL_UNIFORM_BUFFER, 0, Mat4.SIZE,
                GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT);

        Mat4 projection = glm.perspective_((float) Math.PI * 0.25f, (float) windowSize.x / windowSize.y, 0.1f, 100.0f);
        Mat4 model = new Mat4(1.0f);
        Mat4 mvp = projection.mul(viewMat4()).mul(model);

        mvp.toDbb(pointer);

        gl4.glUnmapBuffer(GL_UNIFORM_BUFFER);
    }

    IntBuffer data = IntBuffer.wrap(new int[]{0});
    gl4.glBindBuffer(GL_ATOMIC_COUNTER_BUFFER, bufferName.get(Buffer.ATOMIC_COUNTER));
    gl4.glClearBufferSubData(GL_ATOMIC_COUNTER_BUFFER, GL_R8UI, 0, Integer.BYTES, GL_RGBA, GL_UNSIGNED_INT, data);

    gl4.glViewportIndexedf(0, 0, 0, windowSize.x, windowSize.y);
    gl4.glClearBufferfv(GL_COLOR, 0, clearColor.put(0, 0.0f).put(1, 0.0f).put(2, 0.0f).put(3, 1.0f));

    gl4.glBindProgramPipeline(pipelineName.get(0));
    gl4.glBindVertexArray(vertexArrayName.get(0));
    gl4.glBindBufferBase(GL_ATOMIC_COUNTER_BUFFER, 0, bufferName.get(Buffer.ATOMIC_COUNTER));
    gl4.glBindBufferBase(GL_UNIFORM_BUFFER, Semantic.Uniform.TRANSFORM0, bufferName.get(Buffer.TRANSFORM));

    gl4.glDrawElementsInstancedBaseVertexBaseInstance(GL_TRIANGLES, elementCount, GL_UNSIGNED_SHORT, 0, 5, 0, 0);

    return true;
}
 
开发者ID:java-opengl-labs,项目名称:jogl-samples,代码行数:42,代码来源:Gl_430_atomic_counter.java


注:本文中的com.jogamp.opengl.GL4.glClearBufferSubData方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。