示例#1
0
void ApplicationCompositor::bindCursorTexture(gpu::Batch& batch, uint8_t cursorIndex) {
    auto& cursorManager = Cursor::Manager::instance();
    auto cursor = cursorManager.getCursor(cursorIndex);
    auto iconId = cursor->getIcon();
    if (!_cursors.count(iconId)) {
        auto iconPath = cursorManager.getIconImage(cursor->getIcon());
        _cursors[iconId] = DependencyManager::get<TextureCache>()->
            getImageTexture(iconPath);
    }
    batch.setUniformTexture(0, _cursors[iconId]);
}
示例#2
0
文件: Skybox.cpp 项目: bakarih/hifi
void Skybox::render(gpu::Batch& batch, const ViewFrustum& viewFrustum, const Skybox& skybox) {

    if (skybox.getCubemap() && skybox.getCubemap()->isDefined()) {
        static gpu::PipelinePointer thePipeline;
        static gpu::BufferPointer theBuffer;
        static gpu::Stream::FormatPointer theFormat;
        static gpu::BufferPointer theConstants;
        int SKYBOX_CONSTANTS_SLOT = 0; // need to be defined by the compilation of the shader
        if (!thePipeline) {
            auto skyVS = gpu::ShaderPointer(gpu::Shader::createVertex(std::string(Skybox_vert)));
            auto skyFS = gpu::ShaderPointer(gpu::Shader::createPixel(std::string(Skybox_frag)));
            auto skyShader = gpu::ShaderPointer(gpu::Shader::createProgram(skyVS, skyFS));

            gpu::Shader::BindingSet bindings;
            bindings.insert(gpu::Shader::Binding(std::string("cubeMap"), 0));
            if (!gpu::Shader::makeProgram(*skyShader, bindings)) {

            }

            SKYBOX_CONSTANTS_SLOT = skyShader->getBuffers().findLocation("skyboxBuffer");
            if (SKYBOX_CONSTANTS_SLOT == gpu::Shader::INVALID_LOCATION) {
                SKYBOX_CONSTANTS_SLOT = skyShader->getUniforms().findLocation("skyboxBuffer");
            }
            
            auto skyState = gpu::StatePointer(new gpu::State());

            thePipeline = gpu::PipelinePointer(gpu::Pipeline::create(skyShader, skyState));
        
            const float CLIP = 1.0;
            const glm::vec2 vertices[4] = { {-CLIP, -CLIP}, {CLIP, -CLIP}, {-CLIP, CLIP}, {CLIP, CLIP}};
            theBuffer.reset(new gpu::Buffer(sizeof(vertices), (const gpu::Byte*) vertices));
        
            theFormat.reset(new gpu::Stream::Format());
            theFormat->setAttribute(gpu::Stream::POSITION, gpu::Stream::POSITION, gpu::Element(gpu::VEC2, gpu::FLOAT, gpu::XYZ));
        
            auto color = glm::vec4(1.0f);
            theConstants.reset(new gpu::Buffer(sizeof(color), (const gpu::Byte*) &color));
        }

        glm::mat4 projMat;
        viewFrustum.evalProjectionMatrix(projMat);

        Transform viewTransform;
        viewFrustum.evalViewTransform(viewTransform);

        if (glm::all(glm::equal(skybox.getColor(), glm::vec3(0.0f)))) { 
            auto color = glm::vec4(1.0f);
            theConstants->setSubData(0, sizeof(color), (const gpu::Byte*) &color);
        } else {
            theConstants->setSubData(0, sizeof(Color), (const gpu::Byte*) &skybox.getColor());
        }

        batch.setProjectionTransform(projMat);
        batch.setViewTransform(viewTransform);
        batch.setModelTransform(Transform()); // only for Mac
        batch.setPipeline(thePipeline);
        batch.setInputBuffer(gpu::Stream::POSITION, theBuffer, 0, 8);
        batch.setUniformBuffer(SKYBOX_CONSTANTS_SLOT, theConstants, 0, theConstants->getSize());
        batch.setInputFormat(theFormat);
        batch.setUniformTexture(0, skybox.getCubemap());
        batch.draw(gpu::TRIANGLE_STRIP, 4);
    } else {
        // skybox has no cubemap, just clear the color buffer
        auto color = skybox.getColor();
        batch.clearFramebuffer(gpu::Framebuffer::BUFFER_COLOR0, glm::vec4(skybox.getColor(),1.0f), 0.f, 0); 
    }
}