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C++ Mat4::scale方法代码示例

本文整理汇总了C++中Mat4::scale方法的典型用法代码示例。如果您正苦于以下问题：C++ Mat4::scale方法的具体用法？C++ Mat4::scale怎么用？C++ Mat4::scale使用的例子？那么, 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类Mat4的用法示例。


在下文中一共展示了Mat4::scale方法的7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C++代码示例。

示例1: getModelMatrix

Mat4 Entity::getModelMatrix() {
    Mat4 mat;
    mat.scale(scale.x, scale.y, scale.z);
    mat = mat * rotation;
    mat.translate(position);
    return mat;
}
开发者ID:bsurmanski，项目名称:BosTek8042，代码行数:7，代码来源:entity.cpp

示例2: draw

void BillboardParticleSystem::draw(Renderer *renderer, const Mat4 &transform, uint32_t flags)
{
    begin();
    Vec3 scale;
    transform.getScale(&scale);
    Mat4 billboardTransform;
    billboardTransform.translate(transform.m[12],transform.m[13],transform.m[14]);
    billboardTransform.scale(scale);
    CCASSERT( _particleIdx == 0 || _particleIdx == _particleCount, "Abnormal error in particle quad");
    //quad command
    if(_particleIdx > 0)
    {
        _quadCommand.init(_globalZOrder, _texture->getName(), getGLProgramState(), _blendFunc, _quads, _particleIdx, transform);
        renderer->addCommand(&_quadCommand);
    }
    end();
}
开发者ID:tieunun，项目名称:FantasyWarrior3D，代码行数:17，代码来源:BillboardParticleSystem.cpp

示例3: draw

void TerrainMesh::draw(const helsing::Mat4& modelViewMatrix, const helsing::Mat4& projectionMatrix) {
	using helsing::Mat4;
	float midpoint = (width-1)/2.0;
	float s = 65.0/(width-1.0);
	Mat4 mv = modelViewMatrix;
	mv = mv.scale(s,s,s);
	mv = mv.translate(-midpoint,0,-midpoint);

	shader->use(mv, projectionMatrix);
	glBindVertexArray(vaoId);
	glDrawElements(
			GL_TRIANGLE_STRIP,
			numberOfVertices,
			GL_UNSIGNED_INT,
			0 //Specifies a pointer to the location where the indices are stored.
	);
	glBindVertexArray(0); //disable vertex array object
}
开发者ID:bobbaluba，项目名称:PTG，代码行数:18，代码来源:TerrainMesh.cpp

示例4: update

bool GLCamera::update() {
    if (invalid) {
        if ((style == LAYER) || (style == BACKGROUND)) {
            projection16fv.set(0);
            projection16fv[0] = 2.0f / width;
            projection16fv[5] = -2.0f / height;
            projection16fv[12] = -1.0f + target.x * projection16fv[0];
            projection16fv[13] = 1.0f + target.y * projection16fv[5];
            projection16fv[10] = projection16fv[15] = 1.0f;

            /*
             {  2/w,     0,     0,    0}		rX = sX * 2 / w - 1 <=> (0..w) -> (-1..+1)
             {    0,  -2/h,     0,    0}		rY = sY * -2 / h + 1 <=> (0..w) -> (+1..-1)	// flip vertical
             {    0,     0,     1,    0}
             {   -1,     1,     0,    1}
             */

            view16fv.identity();
        } else {
            if (style == ORTHOGRAPHIC) {
                GLfloat w2 = width / 2.0f;
                GLfloat h2 = height / 2.0f;
                projection16fv.ortho(-w2, w2, -h2, h2, min, max);
            } else if (style == PERSPECTIVE) {
                Vec3 v;
                v.set(scale);
                Mat4 scale;
                scale.scale(v);
                projection16fv.perspective(fov, width/height, min, max).multiply(scale);
            }

            view16fv.lookAt(position, target, head);
        }

        if (style != BACKGROUND) {
            projection16fv.multiply(context->ratio16fv, projection16fv);
        }

        invalid = false;
        return true;
    }

    return false;
}
开发者ID:Jappsy，项目名称:jappsy，代码行数:44，代码来源:uGLCamera.cpp

示例5: if

void Animate3D::update(float t)
{
    if (_target)
    {
        if (_state == Animate3D::Animate3DState::FadeIn && _lastTime > 0.f)
        {
            _accTransTime += (t - _lastTime) * getDuration();
            
            _weight = _accTransTime / _transTime;
            if (_weight >= 1.0f)
            {
                _accTransTime = _transTime;
                _weight = 1.0f;
                _state = Animate3D::Animate3DState::Running;
                s_fadeInAnimates.erase(_target);
                s_runningAnimates[_target] = this;
            }
        }
        else if (_state == Animate3D::Animate3DState::FadeOut && _lastTime > 0.f)
        {
            _accTransTime += (t - _lastTime) * getDuration();
            
            _weight = 1 - _accTransTime / _transTime;
            if (_weight <= 0.0f)
            {
                _accTransTime = _transTime;
                _weight = 0.0f;
                
                s_fadeOutAnimates.erase(_target);
                _target->stopAction(this);
                return;
            }
        }
        float lastTime = _lastTime;
        _lastTime = t;
        
        if (_quality != Animate3DQuality::QUALITY_NONE)
        {
            if (_weight > 0.0f)
            {
                float transDst[3], rotDst[4], scaleDst[3];
                float* trans = nullptr, *rot = nullptr, *scale = nullptr;
                if (_playReverse){
                    t = 1 - t;
                    lastTime = 1.0f - lastTime;
                }
                
                t = _start + t * _last;
                lastTime = _start + lastTime * _last;
                
                for (const auto& it : _boneCurves) {
                    auto bone = it.first;
                    auto curve = it.second;
                    if (curve->translateCurve)
                    {
                        curve->translateCurve->evaluate(t, transDst, _translateEvaluate);
                        trans = &transDst[0];
                    }
                    if (curve->rotCurve)
                    {
                        curve->rotCurve->evaluate(t, rotDst, _roteEvaluate);
                        rot = &rotDst[0];
                    }
                    if (curve->scaleCurve)
                    {
                        curve->scaleCurve->evaluate(t, scaleDst, _scaleEvaluate);
                        scale = &scaleDst[0];
                    }
                    bone->setAnimationValue(trans, rot, scale, this, _weight);
                }
                
                for (const auto& it : _nodeCurves)
                {
                    auto node = it.first;
                    auto curve = it.second;
                    Mat4 transform;
                    if (curve->translateCurve)
                    {
                        curve->translateCurve->evaluate(t, transDst, _translateEvaluate);
                        transform.translate(transDst[0], transDst[1], transDst[2]);
                    }
                    if (curve->rotCurve)
                    {
                        curve->rotCurve->evaluate(t, rotDst, _roteEvaluate);
                        Quaternion qua(rotDst[0], rotDst[1], rotDst[2], rotDst[3]);
                        transform.rotate(qua);
                    }
                    if (curve->scaleCurve)
                    {
                        curve->scaleCurve->evaluate(t, scaleDst, _scaleEvaluate);
                        transform.scale(scaleDst[0], scaleDst[1], scaleDst[2]);
                    }
                    node->setAdditionalTransform(&transform);
                }
                if (!_keyFrameUserInfos.empty()){
                    float prekeyTime = lastTime * getDuration() * _frameRate;
                    float keyTime = t * getDuration() * _frameRate;
                    std::vector<Animate3DDisplayedEventInfo*> eventInfos;
                    for (auto keyFrame : _keyFrameUserInfos)
                    {
//.........这里部分代码省略.........
开发者ID:hugohuang1111，项目名称:Bird，代码行数:101，代码来源:CCAnimate3D.cpp

示例6: onDraw

void Skybox::onDraw(const Mat4& transform, uint32_t /*flags*/)
{
    auto camera = Camera::getVisitingCamera();
    
    Mat4 cameraModelMat = camera->getNodeToWorldTransform();
    Mat4 projectionMat = camera->getProjectionMatrix();
    // Ignore the translation
    cameraModelMat.m[12] = cameraModelMat.m[13] = cameraModelMat.m[14] = 0;
    // prescale the matrix to account for the camera fov
    cameraModelMat.scale(1 / projectionMat.m[0], 1 / projectionMat.m[5], 1.0);
    
    auto state = getGLProgramState();
    state->apply(transform);

    Vec4 color(_displayedColor.r / 255.f, _displayedColor.g / 255.f, _displayedColor.b / 255.f, 1.f);
    state->setUniformVec4("u_color", color);
    state->setUniformMat4("u_cameraRot", cameraModelMat);

    glEnable(GL_DEPTH_TEST);
    RenderState::StateBlock::_defaultState->setDepthTest(true);

    glDepthFunc(GL_LEQUAL);
    RenderState::StateBlock::_defaultState->setDepthFunction(RenderState::DEPTH_LEQUAL);

    glEnable(GL_CULL_FACE);
    RenderState::StateBlock::_defaultState->setCullFace(true);

    glCullFace(GL_BACK);
    RenderState::StateBlock::_defaultState->setCullFaceSide(RenderState::CULL_FACE_SIDE_BACK);
    
    glDisable(GL_BLEND);
    RenderState::StateBlock::_defaultState->setBlend(false);

    if (Configuration::getInstance()->supportsShareableVAO())
    {
        GL::bindVAO(_vao);
    }
    else
    {
        GL::enableVertexAttribs(GL::VERTEX_ATTRIB_FLAG_POSITION);

        glBindBuffer(GL_ARRAY_BUFFER, _vertexBuffer);
        glVertexAttribPointer(GLProgram::VERTEX_ATTRIB_POSITION, 3, GL_FLOAT, GL_FALSE, sizeof(Vec3), nullptr);

        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, _indexBuffer);
    }

    glDrawElements(GL_TRIANGLES, (GLsizei)6, GL_UNSIGNED_BYTE, nullptr);

    if (Configuration::getInstance()->supportsShareableVAO())
    {
        GL::bindVAO(0);
    }
    else
    {
        glBindBuffer(GL_ARRAY_BUFFER, 0);
        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
    }

    CC_INCREMENT_GL_DRAWN_BATCHES_AND_VERTICES(1, 4);

    CHECK_GL_ERROR_DEBUG();
}
开发者ID:hugohuang1111，项目名称:Bird，代码行数:63，代码来源:CCSkybox.cpp

示例7: if

void Animate3D::update(float t)
{
    if (_target)
    {
        if (_state == Animate3D::Animate3DState::FadeIn && _lastTime > 0.f)
        {
            _accTransTime += (t - _lastTime) * getDuration();
            
            _weight = _accTransTime / _transTime;
            if (_weight >= 1.0f)
            {
                _accTransTime = _transTime;
                _weight = 1.0f;
                _state = Animate3D::Animate3DState::Running;
                s_fadeInAnimates.erase(_target);
                s_runningAnimates[_target] = this;
            }
        }
        else if (_state == Animate3D::Animate3DState::FadeOut && _lastTime > 0.f)
        {
            _accTransTime += (t - _lastTime) * getDuration();
            
            _weight = 1 - _accTransTime / _transTime;
            if (_weight <= 0.0f)
            {
                _accTransTime = _transTime;
                _weight = 0.0f;
                
                s_fadeOutAnimates.erase(_target);
            }
        }
        _lastTime = t;
        
        if (_weight > 0.0f)
        {
            float transDst[3], rotDst[4], scaleDst[3];
            float* trans = nullptr, *rot = nullptr, *scale = nullptr;
            if (_playReverse)
                t = 1 - t;
            
            t = _start + t * _last;
 
            for (const auto& it : _boneCurves) {
                auto bone = it.first;
                auto curve = it.second;
                if (curve->translateCurve)
                {
                    curve->translateCurve->evaluate(t, transDst, _translateEvaluate);
                    trans = &transDst[0];
                }
                if (curve->rotCurve)
                {
                    curve->rotCurve->evaluate(t, rotDst, _roteEvaluate);
                    rot = &rotDst[0];
                }
                if (curve->scaleCurve)
                {
                    curve->scaleCurve->evaluate(t, scaleDst, _scaleEvaluate);
                    scale = &scaleDst[0];
                }
                bone->setAnimationValue(trans, rot, scale, this, _weight);
            }
            
            for (const auto& it : _nodeCurves)
            {
                auto node = it.first;
                auto curve = it.second;
                Mat4 transform;
                if (curve->translateCurve)
                {
                    curve->translateCurve->evaluate(t, transDst, _translateEvaluate);
                    transform.translate(transDst[0], transDst[1], transDst[2]);
                }
                if (curve->rotCurve)
                {
                    curve->rotCurve->evaluate(t, rotDst, _roteEvaluate);
                    Quaternion qua(rotDst[0], rotDst[1], rotDst[2], rotDst[3]);
                    transform.rotate(qua);
                }
                if (curve->scaleCurve)
                {
                    curve->scaleCurve->evaluate(t, scaleDst, _scaleEvaluate);
                    transform.scale(scaleDst[0], scaleDst[1], scaleDst[2]);
                }
                node->setAdditionalTransform(&transform);
            }
        }
    }
}
开发者ID:Catherine22，项目名称:Whac-A-Mole-，代码行数:89，代码来源:CCAnimate3D.cpp


注：本文中的Mat4::scale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。