///////////////////////////////////////////////////////
// Called to draw scene
void RenderScene(void)
{
// Clear the window with current clearing color
glClear(GL_COLOR_BUFFER_BIT);
modelViewMatrix.PushMatrix();
modelViewMatrix.Translate(0.0f, 0.0f, viewZ);
shaderManager.UseStockShader(GLT_SHADER_TEXTURE_REPLACE, transformPipeline.GetModelViewProjectionMatrix(), 0);
glBindTexture(GL_TEXTURE_2D, textures[TEXTURE_FLOOR]);
floorBatch.Draw();
glBindTexture(GL_TEXTURE_2D, textures[TEXTURE_CEILING]);
ceilingBatch.Draw();
glBindTexture(GL_TEXTURE_2D, textures[TEXTURE_BRICK]);
leftWallBatch.Draw();
rightWallBatch.Draw();
modelViewMatrix.PopMatrix();
// Buffer swap
glutSwapBuffers();
}
// Called to draw scene
void RenderScene(void)
{
// Clear the window and the depth buffer
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// glEnable(GL_CULL_FACE);
glEnable(GL_DEPTH_TEST);
modelViewMatix.PushMatrix(viewFrame);
GLfloat vRed[] = { 1.0f, 0.0f, 0.0f, 1.0f };
GLfloat vGray[] = { 0.75f, 0.75f, 0.75f, 1.0f };
shaderManager.UseStockShader(GLT_SHADER_DEFAULT_LIGHT, transformPipeline.GetModelViewMatrix(), transformPipeline.GetProjectionMatrix(), vRed);
tubeBatch.Draw();
shaderManager.UseStockShader(GLT_SHADER_DEFAULT_LIGHT, transformPipeline.GetModelViewMatrix(), transformPipeline.GetProjectionMatrix(), vGray);
innerBatch.Draw();
modelViewMatix.PopMatrix();
glutSwapBuffers();
}
void RenderScene(void)
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
modelViewMatrix.PushMatrix();
{
modelViewMatrix.Translate(0.0f, 0.0f, viewZ);
shaderManager.UseStockShader(GLT_SHADER_TEXTURE_REPLACE, transformPipeLine.GetModelViewProjectionMatrix(), 0);
glBindTexture(GL_TEXTURE_2D, uiTextures[TEXTURE_FLOOR]);
floorBatch.Draw();
glBindTexture(GL_TEXTURE_2D, uiTextures[TEXTURE_CEILING]);
ceilingBatch.Draw();
glBindTexture(GL_TEXTURE_2D, uiTextures[TEXTURE_BRICK]);
leftWallBatch.Draw();
rightWallBatch.Draw();
}
modelViewMatrix.PopMatrix();
glutSwapBuffers();
}
///////////////////////////////////////////////////////////////////////////////
// Called to draw scene
void RenderScene(void)
{
// Clear the window with current clearing color
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
modelViewMatrix.PushMatrix();
M3DMatrix44f mCamera;
cameraFrame.GetCameraMatrix(mCamera);
modelViewMatrix.MultMatrix(mCamera);
M3DMatrix44f mObjectFrame;
objectFrame.GetMatrix(mObjectFrame);
modelViewMatrix.MultMatrix(mObjectFrame);
shaderManager.UseStockShader(GLT_SHADER_FLAT, transformPipeline.GetModelViewProjectionMatrix(), vBlack);
switch(nStep) {
case 0:
glPointSize(4.0f);
pointBatch.Draw();
glPointSize(1.0f);
break;
case 1:
glLineWidth(2.0f);
lineBatch.Draw();
glLineWidth(1.0f);
break;
case 2:
glLineWidth(2.0f);
lineStripBatch.Draw();
glLineWidth(1.0f);
break;
case 3:
glLineWidth(2.0f);
lineLoopBatch.Draw();
glLineWidth(1.0f);
break;
case 4:
DrawWireFramedBatch(&triangleBatch);
break;
case 5:
DrawWireFramedBatch(&triangleStripBatch);
break;
case 6:
DrawWireFramedBatch(&triangleFanBatch);
break;
}
modelViewMatrix.PopMatrix();
// Flush drawing commands
glutSwapBuffers();
}
///////////////////////////////////////////////////
// Called to draw scene
void RenderScene(void)
{
static CStopWatch timer;
// Clear the window
glClear(GL_COLOR_BUFFER_BIT);
// Everything is white
GLfloat vWhite [] = { 1.0f, 1.0f, 1.0f, 1.0f };
glBindTexture(GL_TEXTURE_2D, starTexture);
glUseProgram(starFieldShader);
glUniformMatrix4fv(locMVP, 1, GL_FALSE, viewFrustum.GetProjectionMatrix());
glUniform1i(locStarTexture, 0);
// Draw small stars
glPointSize(4.0f);
smallStarBatch.Draw();
// Draw medium sized stars
glPointSize(8.0f);
mediumStarBatch.Draw();
// Draw largest stars
glPointSize(12.0f);
largeStarBatch.Draw();
// Draw distant horizon
shaderManager.UseStockShader(GLT_SHADER_FLAT, viewFrustum.GetProjectionMatrix(), vWhite);
glLineWidth(3.5);
mountainRangeBatch.Draw();
// Draw the "moon"
glBindTexture(GL_TEXTURE_2D_ARRAY, moonTexture);
glUseProgram(moonShader);
glUniformMatrix4fv(locMoonMVP, 1, GL_FALSE, viewFrustum.GetProjectionMatrix());
glUniform1i(locMoonTexture, 0);
// fTime goes from 0.0 to 28.0 and recycles
float fTime = timer.GetElapsedSeconds();
fTime = fmod(fTime, 28.0f);
glUniform1f(locTimeStamp, fTime);
moonBatch.Draw();
// Swap buffers
glutSwapBuffers();
glutPostRedisplay();
}
///////////////////////////////////////////////////////////////////////////////
// Draw the scene
//
void DrawWorld()
{
modelViewMatrix.Translate(0.0f, 0.8f, 0.0f);
modelViewMatrix.PushMatrix();
modelViewMatrix.Translate(-0.3f, 0.f, 0.0f);
modelViewMatrix.Scale(0.40, 0.8, 0.40);
modelViewMatrix.Rotate(50.0, 0.0, 10.0, 0.0);
glSampleMaski(0, 0x02);
shaderManager.UseStockShader(GLT_SHADER_FLAT, transformPipeline.GetModelViewProjectionMatrix(), vLtYellow);
glass1Batch.Draw();
modelViewMatrix.PopMatrix();
modelViewMatrix.PushMatrix();
modelViewMatrix.Translate(0.4f, 0.0f, 0.0f);
modelViewMatrix.Scale(0.5, 0.8, 1.0);
modelViewMatrix.Rotate(-20.0, 0.0, 1.0, 0.0);
glSampleMaski(0, 0x04);
shaderManager.UseStockShader(GLT_SHADER_FLAT, transformPipeline.GetModelViewProjectionMatrix(), vLtGreen);
glass2Batch.Draw();
modelViewMatrix.PopMatrix();
modelViewMatrix.PushMatrix();
modelViewMatrix.Translate(1.0f, 0.0f, -0.6f);
modelViewMatrix.Scale(0.3, 0.9, 1.0);
modelViewMatrix.Rotate(-40.0, 0.0, 1.0, 0.0);
glSampleMaski(0, 0x08);
shaderManager.UseStockShader(GLT_SHADER_FLAT, transformPipeline.GetModelViewProjectionMatrix(), vLtMagenta);
glass3Batch.Draw();
modelViewMatrix.PopMatrix();
modelViewMatrix.PushMatrix();
modelViewMatrix.Translate(-0.8f, 0.0f, -0.60f);
modelViewMatrix.Scale(0.6, 0.9, 0.40);
modelViewMatrix.Rotate(60.0, 0.0, 1.0, 0.0);
glSampleMaski(0, 0x10);
shaderManager.UseStockShader(GLT_SHADER_FLAT, transformPipeline.GetModelViewProjectionMatrix(), vLtBlue);
glass4Batch.Draw();
modelViewMatrix.PopMatrix();
modelViewMatrix.PushMatrix();
modelViewMatrix.Translate(0.1f, 0.0f, 0.50f);
modelViewMatrix.Scale(0.4, 0.9, 0.4);
modelViewMatrix.Rotate(205.0, 0.0, 1.0, 0.0);
glSampleMaski(0, 0x20);
shaderManager.UseStockShader(GLT_SHADER_FLAT, transformPipeline.GetModelViewProjectionMatrix(), vLtPink);
glass4Batch.Draw();
modelViewMatrix.PopMatrix();
}
///////////////////////////////////////////////////////////////////////////////
// Called to draw scene
void RenderScene(void)
{
static GLfloat vLightPos [] = { 1.0f, 1.0f, 0.0f };
static GLfloat vWhite [] = { 1.0f, 1.0f, 1.0f, 1.0f };
// Clear the window with current clearing color
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
modelViewMatrix.PushMatrix();
M3DMatrix44f mCamera;
cameraFrame.GetCameraMatrix(mCamera);
modelViewMatrix.MultMatrix(mCamera);
M3DMatrix44f mObjectFrame;
objectFrame.GetMatrix(mObjectFrame);
modelViewMatrix.MultMatrix(mObjectFrame);
glBindTexture(GL_TEXTURE_2D, textureID);
shaderManager.UseStockShader(GLT_SHADER_TEXTURE_POINT_LIGHT_DIFF,
transformPipeline.GetModelViewMatrix(),
transformPipeline.GetProjectionMatrix(),
vLightPos, vWhite, 0);
pyramidBatch.Draw();
modelViewMatrix.PopMatrix();
// Flush drawing commands
glutSwapBuffers();
}
void RenderScene()
{
static GLfloat vSunColor[] = { 1.0f, 0.0f, 0.0f, 1.0f };
static GLfloat vEarthColor[] = { 0.0f, 0.0f, 1.0f, 1.0f };
static GLfloat vMoonColor[] = { 1.0f, 1.0f, 0.0f, 1.0f };
static GLfloat vFloorColor[] = { 0.0f, 1.0f, 0.0f, 1.0f};
static CStopWatch rotTimer;
float yRot = rotTimer.GetElapsedSeconds() * 60.0f;
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
modelViewMatrix.PushMatrix();
M3DMatrix44f mCamera;
cameraFrame.GetCameraMatrix(mCamera);
modelViewMatrix.PushMatrix(mCamera);
M3DVector4f vLightPos = { 0.0f, 10.0f, 5.0f, 1.0f };
M3DVector4f vLightEyePos;
m3dTransformVector4(vLightEyePos, vLightPos, mCamera);
shaderManager.UseStockShader(GLT_SHADER_FLAT,
transformPipeline.GetModelViewProjectionMatrix(),
vFloorColor);
floorBatch.Draw();
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
modelViewMatrix.Translate(0.0f, 0.0f, -3.5f);
modelViewMatrix.PushMatrix();
modelViewMatrix.Rotate(yRot, 0.0f, 1.0f, 0.0f);
shaderManager.UseStockShader(GLT_SHADER_FLAT,
transformPipeline.GetModelViewProjectionMatrix(), vSunColor);
sunSphereBatch.Draw();
modelViewMatrix.PopMatrix();
modelViewMatrix.Rotate(yRot * -2.0f, 0.0f, 1.0f, 0.0f);
modelViewMatrix.Translate(0.8f, 0.0f, 0.0f);
shaderManager.UseStockShader(GLT_SHADER_FLAT,
transformPipeline.GetModelViewProjectionMatrix(), vEarthColor);
earthSphereBatch.Draw();
modelViewMatrix.Rotate(yRot * -4.0f, 0.0f, 1.0f, 0.0f);
modelViewMatrix.Translate(0.4f, 0.0f, 0.0f);
shaderManager.UseStockShader(GLT_SHADER_FLAT,
transformPipeline.GetModelViewProjectionMatrix(), vMoonColor);
moonSphereBatch.Draw();
modelViewMatrix.PopMatrix();
modelViewMatrix.PopMatrix();
modelViewMatrix.PopMatrix();
glutSwapBuffers();
glutPostRedisplay();
}
// Called to draw scene
void RenderScene(void)
{
static CStopWatch timer;
// Clear the window and the depth buffer
glClear(GL_COLOR_BUFFER_BIT);
// Turn on additive blending
glEnable(GL_BLEND);
glBlendFunc(GL_ONE, GL_ONE);
// Let the vertex program determine the point size
glEnable(GL_PROGRAM_POINT_SIZE);
// Bind to our shader, set uniforms
glUseProgram(starFieldShader);
glUniformMatrix4fv(locMVP, 1, GL_FALSE, viewFrustum.GetProjectionMatrix());
glUniform1i(locTexture, 0);
// fTime goes from 0.0 to 999.0 and recycles
float fTime = timer.GetElapsedSeconds() * 10.0f;
fTime = fmod(fTime, 999.0f);
glUniform1f(locTimeStamp, fTime);
// Draw the stars
starsBatch.Draw();
glutSwapBuffers();
glutPostRedisplay();
}
void MyGLWidget::paintGL()
{
// Clear the window with current clearing color
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
GLfloat vRed[] = { 1.0f, 0.0f, 0.0f, 0.8f };
shaderManager.UseStockShader(GLT_SHADER_IDENTITY, vRed);
squareBatch.Draw();
swapBuffers();
}
void RenderScene(GLFWwindow* window)
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
glUseProgram(myIdentityShader);
triangleBatch.Draw();
glfwSwapBuffers(window);
}
///////////////////////////////////////////////////////////////////////////////
// Called to draw scene
void RenderScene(void)
{
// Clear the window with current clearing color
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
glUseProgram(myIdentityShader);
triangleBatch.Draw();
// Perform the buffer swap to display back buffer
glutSwapBuffers();
}
// Called to draw scene
void RenderScene(void) {
// Clear the window with current clearing color
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
M3DMatrix44f identityMatrix;
m3dLoadIdentity44(identityMatrix);
shaderManager.UseStockShader(GLT_SHADER_SHADED, identityMatrix);
triangleBatch.Draw();
// Perform the buffer swap to display back buffer
glutSwapBuffers();
//glutPostRedisplay();
}
///////////////////////////////////////////////////////////////////////////////
// Render the floor
void RenderFloor(void)
{
GLfloat vBrown [] = { 0.55f, 0.292f, 0.09f, 1.0f};
GLfloat vFloor[] = { 1.0f, 1.0f, 1.0f, 0.6f };
switch(nStep)
{
// Wire frame
case 0:
glEnable(GL_BLEND);
glEnable(GL_LINE_SMOOTH);
shaderManager.UseStockShader(GLT_SHADER_FLAT, transformPipeline.GetModelViewProjectionMatrix(), vBrown);
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
glDisable(GL_CULL_FACE);
break;
// Wire frame, but not the back side.. and only where stencil == 0
case 1:
glEnable(GL_BLEND);
glEnable(GL_LINE_SMOOTH);
glEnable(GL_STENCIL_TEST);
glStencilFunc(GL_EQUAL, 0, 0xff);
shaderManager.UseStockShader(GLT_SHADER_FLAT, transformPipeline.GetModelViewProjectionMatrix(), vBrown);
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
break;
// Solid
case 2:
case 3:
shaderManager.UseStockShader(GLT_SHADER_FLAT, transformPipeline.GetModelViewProjectionMatrix(), vBrown);
break;
// Textured
case 4:
case 5:
default:
glBindTexture(GL_TEXTURE_2D, textures[0]);
shaderManager.UseStockShader(GLT_SHADER_TEXTURE_MODULATE, transformPipeline.GetModelViewProjectionMatrix(), vFloor, 0);
break;
}
// Draw the floor
floorBatch.Draw();
// Put everything back
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
glEnable(GL_CULL_FACE);
glDisable(GL_BLEND);
glDisable(GL_LINE_SMOOTH);
glDisable(GL_STENCIL_TEST);
}
///////////////////////////////////////////////////////////////////////////////
// Called to draw scene
void RenderScene(void)
{
// Clear the window with current clearing color
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
GLfloat vRed[] = { 1.0f, 0.0f, 0.0f, 1.0f };
shaderManager.UseStockShader(GLT_SHADER_IDENTITY, vRed);
triangleBatch.Draw();
// Perform the buffer swap to display back buffer
glutSwapBuffers();
}
///////////////////////////////////////////////////
// Called to draw scene
void RenderScene(void)
{
// Clear the window
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// Everything is white
GLfloat vWhite [] = { 1.0f, 1.0f, 1.0f, 1.0f };
shaderManager.UseStockShader(GLT_SHADER_FLAT, viewFrustum.GetProjectionMatrix(), vWhite);
// Draw small stars
glPointSize(1.0f);
smallStarBatch.Draw();
// Draw medium sized stars
glPointSize(4.0f);
mediumStarBatch.Draw();
// Draw largest stars
glPointSize(8.0f);
largeStarBatch.Draw();
// Draw the "moon"
moonBatch.Draw();
// Draw distant horizon
glLineWidth(3.5);
mountainRangeBatch.Draw();
moonBatch.Draw();
// Swap buffers
glutSwapBuffers();
}
//开始渲染
void RenderScene(void)
{
//清除一个或一组特定的缓冲区
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
//设置一组浮点数来表示红色
GLfloat vRed[] = {1.0f,0.0f,0.0f,1.0f};
//传递到存储着色器，即GLT_SHADER_IDENTITY着色器，这个着色器只是使用指定颜色以默认笛卡尔坐标第在屏幕上渲染几何图形
shaderManager.UseStockShader(GLT_SHADER_IDENTITY,vRed);
//提交着色器
triangleBatch.Draw();
//将在后台缓冲区进行渲染，然后在结束时交换到前台
glutSwapBuffers();
}
///////////////////////////////////////////////////////////////////////////////
// Render a frame. The owning framework is responsible for buffer swaps,
// flushes, etc.
void RenderScene(void)
{
static CStopWatch animationTimer;
float yRot = animationTimer.GetElapsedSeconds() * 60.0f;
// first, draw to FBO at full FBO resolution
// Bind FBO with 8b attachment
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fboName);
glViewport(0, 0, hdrTexturesWidth[curHDRTex], hdrTexturesHeight[curHDRTex]);
glClear(GL_COLOR_BUFFER_BIT);
// Bind texture with HDR image
glBindTexture(GL_TEXTURE_2D, hdrTextures[curHDRTex]);
// Render pass, downsample to 8b using selected program
projectionMatrix.LoadMatrix(fboOrthoMatrix);
SetupHDRProg();
fboQuad.Draw();
// Then draw the resulting image to the screen, maintain image proportions
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
glViewport(0, 0, screenWidth, screenHeight);
glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
// Attach 8b texture with HDR image
glBindTexture(GL_TEXTURE_2D, fboTextures[0]);
// draw screen sized, proportional quad with 8b texture
projectionMatrix.LoadMatrix(orthoMatrix);
SetupStraightTexProg();
screenQuad.Draw();
// Do the buffer Swap
glutSwapBuffers();
// Do it again
glutPostRedisplay();
}
void DrawGround()
{
glEnable(GL_BLEND);
glBindTexture(GL_TEXTURE_2D, groundTexture);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
static GLfloat vFloorColor[] = { 1.0f, 1.0f, 1.0f, REFLECTING_ALPHA};
if (reflecting)
vFloorColor[3] = REFLECTING_ALPHA;
else
vFloorColor[3] = NONREFLECTING_ALPHA;
shaderManager.UseStockShader(GLT_SHADER_TEXTURE_MODULATE, transformPipeline.GetModelViewProjectionMatrix(), vFloorColor, 0);
groundBatch.Draw();
glDisable(GL_BLEND);
}
///////////////////////////////////////////////////////////////////////////////
// Called to draw scene
void RenderScene(void)
{
// Clear the window with current clearing color
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
GLfloat vRed[] = { 1.0f, 0.0f, 0.0f, 1.0f };
shaderManager.UseStockShader(GLT_SHADER_IDENTITY, vRed);
squareBatch.Draw();
// Flush drawing commands
glutSwapBuffers();
BounceFunction();
glutPostRedisplay();
}
///////////////////////////////////////////////////////////////////////////////
// Called to draw scene
void RenderScene(void)
{
// Clear the window with current clearing color
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
glUseProgram(myTexturedIdentityShader);
glBindTexture(GL_TEXTURE_2D, textureID);
GLint iTextureUniform = glGetUniformLocation(myTexturedIdentityShader, "colorMap");
glUniform1i(iTextureUniform, 0);
triangleBatch.Draw();
// Perform the buffer swap to display back buffer
glutSwapBuffers();
}
///////////////////////////////////////////////////
// Called to draw scene
void RenderScene(void)
{
// Clear the window
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// Everything is white
GLfloat vWhite [] = { 1.0f, 1.0f, 1.0f, 1.0f };
#ifndef OPENGL_ES
shaderManager.UseStockShader(GLT_SHADER_FLAT, viewFrustum.GetProjectionMatrix(), vWhite);
// Draw small stars
glPointSize(1.0f);
#else
glUseProgram(pointSizeShader);
GLint iTransform, iColor, iPointSize;
iTransform = glGetUniformLocation(pointSizeShader, "mvpMatrix");
glUniformMatrix4fv(iTransform, 1, GL_FALSE, viewFrustum.GetProjectionMatrix());
iColor = glGetUniformLocation(pointSizeShader, "vColor");
glUniform4fv(iColor, 1, vWhite);
iPointSize = glGetUniformLocation(pointSizeShader, "fPointSize");
glUniform1f(iPointSize, 1.0f);
#endif
smallStarBatch.Draw();
// Draw medium sized stars
#ifdef OPENGL_ES
iPointSize = glGetUniformLocation(pointSizeShader, "fPointSize");
glUniform1f(iPointSize, 4.0f);
#else
glPointSize(4.0f);
#endif
mediumStarBatch.Draw();
// Draw largest stars
#ifdef OPENGL_ES
iPointSize = glGetUniformLocation(pointSizeShader, "fPointSize");
glUniform1f(iPointSize, 8.0f);
#else
glPointSize(8.0f);
#endif
largeStarBatch.Draw();
// Draw the "moon"
moonBatch.Draw();
// Draw distant horizon
glLineWidth(3.5);
mountainRangeBatch.Draw();
moonBatch.Draw();
// Swap buffers
glutSwapBuffers();
}
// Called to draw scene
void RenderScene(void)
{
static CStopWatch rotTimer;
float yRot = rotTimer.GetElapsedSeconds() * 60.0f;
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
modelViewMatrix.PushMatrix();
M3DMatrix44f mCamera;
cameraFrame.GetCameraMatrix(mCamera);
modelViewMatrix.MultMatrix(mCamera);
// Draw the world upside down
modelViewMatrix.PushMatrix();
modelViewMatrix.Scale(1.0f, -1.0f, 1.0f); // Flips the Y Axis
modelViewMatrix.Translate(0.0f, 0.8f, 0.0f); // Scootch the world down a bit...
glFrontFace(GL_CW);
DrawSongAndDance(yRot);
glFrontFace(GL_CCW);
modelViewMatrix.PopMatrix();
// Draw the solid ground
glEnable(GL_BLEND);
glBindTexture(GL_TEXTURE_2D, uiTextures[0]);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
static GLfloat vFloorColor[] = { 1.0f, 1.0f, 1.0f, 0.75f};
shaderManager.UseStockShader(GLT_SHADER_TEXTURE_MODULATE,
transformPipeline.GetModelViewProjectionMatrix(),
vFloorColor,
0);
floorBatch.Draw();
glDisable(GL_BLEND);
DrawSongAndDance(yRot);
modelViewMatrix.PopMatrix();
// Do the buffer Swap
glutSwapBuffers();
// Do it again
glutPostRedisplay();
}
///////////////////////////////////////////////////////////////////////////////
// Called to draw scene
void RenderScene(void)
{
// Clear the window with current clearing color
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
GLfloat vRed[] = { 1.0f, 0.0f, 0.0f, 1.0f };
glUseProgram(myIdentityShader);
GLint iColorLocation = glGetUniformLocation(myIdentityShader, "vColor");
GLfloat vColor[4] = { 1.0f, 0.0f, 0.0f, 1.0f };
glUniform4fv(iColorLocation, 1, vColor);
triangleBatch.Draw();
// Perform the buffer swap to display back buffer
glutSwapBuffers();
}
void RenderScene()
{
// Clear the window and the depth buffer
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
{ ScopedMatrix m(modelViewMatrix);
modelViewMatrix.MultMatrix(viewFrame);
glUseProgram(texturedIdentity);
glBindTexture(GL_TEXTURE_2D, stoneTexture);
locTextureUniform = glGetUniformLocation(texturedIdentity, "colorMap");
glUniform1i(locTextureUniform, 0);
triangleBatch.Draw();
}
glutSwapBuffers();
}
// Called to draw scene
void RenderScene(void)
{
// Color values
static GLfloat vFloorColor[] = { 0.0f, 1.0f, 0.0f, 1.0f};
static GLfloat vTorusColor[] = { 1.0f, 0.0f, 0.0f, 1.0f };
// Time Based animation
static CStopWatch rotTimer;
float yRot = rotTimer.GetElapsedSeconds() * 60.0f;
// Clear the color and depth buffers
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// Save the current modelview matrix (the identity matrix)
modelViewMatrix.PushMatrix();
// Draw the ground
shaderManager.UseStockShader(GLT_SHADER_FLAT,
transformPipeline.GetModelViewProjectionMatrix(),
vFloorColor);
floorBatch.Draw();
// Draw the spinning Torus
modelViewMatrix.Translate(0.0f, 0.0f, -2.5f);
modelViewMatrix.Rotate(yRot, 0.0f, 1.0f, 0.0f);
shaderManager.UseStockShader(GLT_SHADER_FLAT, transformPipeline.GetModelViewProjectionMatrix(),
vTorusColor);
torusBatch.Draw();
// Restore the previous modleview matrix (the idenity matrix)
modelViewMatrix.PopMatrix();
// Do the buffer Swap
glutSwapBuffers();
// Tell GLUT to do it again
glutPostRedisplay();
}
void SceneShader()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
GLfloat VColor[] = {0.25f,0.25f,0.25f,1.0f};
M3DMatrix44f RotationMatrix;
Rot += 1.0f;
//get the Rotation Matrix
//m3dDegToRad: translate angle to radian
m3dRotationMatrix44(RotationMatrix, m3dDegToRad(Rot), 0.0f, 0.0f, 1.0f);
//use the flat shader
shaderManager.UseStockShader(GLT_SHADER_FLAT, RotationMatrix ,VColor);
SquareRotationBatch.Draw();
// Swap buffers, and immediately refresh
glutSwapBuffers();
glutPostRedisplay();
}
// Called to draw scene
void RenderScene(void)
{
// Clear the window
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
M3DMatrix44f mCamera;
M3DMatrix44f mCameraRotOnly;
M3DMatrix44f mInverseCamera;
viewFrame.GetCameraMatrix(mCamera, false);
viewFrame.GetCameraMatrix(mCameraRotOnly, true);
m3dInvertMatrix44(mInverseCamera, mCameraRotOnly);
modelViewMatrix.PushMatrix();
// Draw the sphere
modelViewMatrix.MultMatrix(mCamera);
glUseProgram(reflectionShader);
glUniformMatrix4fv(locMVPReflect, 1, GL_FALSE, transformPipeline.GetModelViewProjectionMatrix());
glUniformMatrix4fv(locMVReflect, 1, GL_FALSE, transformPipeline.GetModelViewMatrix());
glUniformMatrix3fv(locNormalReflect, 1, GL_FALSE, transformPipeline.GetNormalMatrix());
glUniformMatrix4fv(locInvertedCamera, 1, GL_FALSE, mInverseCamera);
glUniform1i(locCubeMap, 0);
glUniform1i(locTarnishMap, 1);
glEnable(GL_CULL_FACE);
sphereBatch.Draw();
glDisable(GL_CULL_FACE);
modelViewMatrix.PopMatrix();
modelViewMatrix.PushMatrix();
modelViewMatrix.MultMatrix(mCameraRotOnly);
glUseProgram(skyBoxShader);
glUniformMatrix4fv(locMVPSkyBox, 1, GL_FALSE, transformPipeline.GetModelViewProjectionMatrix());
cubeBatch.Draw();
modelViewMatrix.PopMatrix();
// Do the buffer Swap
glutSwapBuffers();
}
///////////////////////////////////////////////////////////////////////////////
// Render a frame. The owning framework is responsible for buffer swaps,
// flushes, etc.
void RenderScene(void)
{
static CStopWatch animationTimer;
static float totalTime = 6; // To go back and forth
static float halfTotalTime = totalTime/2;
float seconds = animationTimer.GetElapsedSeconds() * speedFactor;
float xPos = 0;
// Calculate the next postion of the moving object
// First perform a mod-like operation on the time as a float
while(seconds > totalTime)
seconds -= totalTime;
// Move object position, if it's gone half way across
// start bringing it back
if(seconds < halfTotalTime)
xPos = seconds -halfTotalTime*0.5f;
else
xPos = totalTime - seconds -halfTotalTime*0.5f;
// First draw world to screen
modelViewMatrix.PushMatrix();
M3DMatrix44f mCamera;
cameraFrame.GetCameraMatrix(mCamera);
modelViewMatrix.MultMatrix(mCamera);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, textures[0]); // Marble
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
shaderManager.UseStockShader(GLT_SHADER_TEXTURE_MODULATE, transformPipeline.GetModelViewProjectionMatrix(), vWhite, 0);
floorBatch.Draw();
DrawWorld(0.0f, xPos);
modelViewMatrix.PopMatrix();
if(bUsePBOPath)
{
#ifndef OPENGL_ES
// First bind the PBO as the pack buffer, then read the pixels directly to the PBO
glBindBuffer(GL_PIXEL_PACK_BUFFER, pixBuffObjs[0]);
glReadPixels(0, 0, screenWidth, screenHeight, GL_RGB, GL_UNSIGNED_BYTE, NULL);
glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
// Next bind the PBO as the unpack buffer, then push the pixels straight into the texture
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, pixBuffObjs[0]);
// Setup texture unit for new blur, this gets imcremented every frame
glActiveTexture(GL_TEXTURE0+GetBlurTarget0() );
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB8, screenWidth, screenHeight, 0, GL_RGB, GL_UNSIGNED_BYTE, NULL);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
#endif
}
else
{
// Grab the screen pixels and copy into local memory
glReadPixels(0, 0, screenWidth, screenHeight, GL_RGB, GL_UNSIGNED_BYTE, pixelData);
// Push pixels from client memory into texture
// Setup texture unit for new blur, this gets imcremented every frame
glActiveTexture(GL_TEXTURE0+GetBlurTarget0() );
#ifndef OPENGL_ES
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB8, screenWidth, screenHeight, 0, GL_RGB, GL_UNSIGNED_BYTE, pixelData);
#else
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, screenWidth, screenHeight, 0, GL_RGB, GL_UNSIGNED_BYTE, pixelData);
#endif
}
// Draw full screen quad with blur shader and all blur textures
projectionMatrix.PushMatrix();
projectionMatrix.LoadIdentity();
projectionMatrix.LoadMatrix(orthoMatrix);
modelViewMatrix.PushMatrix();
modelViewMatrix.LoadIdentity();
glDisable(GL_DEPTH_TEST);
SetupBlurProg();
screenQuad.Draw();
glEnable(GL_DEPTH_TEST);
modelViewMatrix.PopMatrix();
projectionMatrix.PopMatrix();
// Move to the next blur texture for the next frame
AdvanceBlurTaget();
// Do the buffer Swap
glutSwapBuffers();
// Do it again
glutPostRedisplay();
UpdateFrameCount();
}
void RenderScene(void)
{
static CStopWatch rotTimer;
float yRot = rotTimer.GetElapsedSeconds() * 60.0f;
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
modelViewMatrix.PushMatrix();
M3DMatrix44f mCamera;
cameraFrame.GetCameraMatrix(mCamera);
modelViewMatrix.MultMatrix(mCamera);
modelViewMatrix.PushMatrix();
{
//反向
modelViewMatrix.Scale(1.0f, -1.0f, 1.0f);
//因为是反向，所以正数是向下
modelViewMatrix.Translate(0.0f, 0.8f, 0.0f); // Scootch the world down a bit...
//三维中其中一维反向之后，缠绕方向也会呈相反，所以重新定义缠绕正方向为顺时针方向；
glFrontFace(GL_CW);
DrawSongAndDance(yRot);
glFrontFace(GL_CCW);
}
modelViewMatrix.PopMatrix();
// Draw the solid ground
glEnable(GL_BLEND);
glBindTexture(GL_TEXTURE_2D, uiTextures[0]);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
static GLfloat vFloorColor[] = { 1.0f, 1.0f, 1.0f, 0.75f };
shaderManager.UseStockShader(GLT_SHADER_TEXTURE_MODULATE,
transformPipeLine.GetModelViewProjectionMatrix(),
vFloorColor,
0);
floorBatch.Draw();
glDisable(GL_BLEND);
DrawSongAndDance(yRot);
modelViewMatrix.PopMatrix();
// Render the overlay
// Creating this matrix really doesn't need to be done every frame. I'll leave it here
// so all the pertenant code is together
M3DMatrix44f mScreenSpace;
m3dMakeOrthographicMatrix(mScreenSpace, 0.0f, 800.0f, 0.0f, 600.0f, -1.0f, 1.0f);
// Turn blending on, and depth testing off
glEnable(GL_BLEND);
glDisable(GL_DEPTH_TEST);
glUseProgram(sphereWolrdShader);
glUniform1i(locTexture, 0);
glUniformMatrix4fv(locMVP, 1, GL_FALSE, mScreenSpace);
glBindTexture(GL_TEXTURE_RECTANGLE, uiTextures[3]);
logoBatch.Draw();
// Restore no blending and depth test
glDisable(GL_BLEND);
glEnable(GL_DEPTH_TEST);
// Do the buffer Swap
glutSwapBuffers();
// Do it again
glutPostRedisplay();
}
