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OpenGL ES SDK for Android
ARM Developer Center
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OpenGL ES SDK for Android
ARM Developer Center
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Demonstration of shadow mapping functionality using OpenGL ES 3.0. More...
#include <jni.h>#include <android/log.h>#include <GLES3/gl3.h>#include "Common.h"#include "CubeModel.h"#include "Mathematics.h"#include "Matrix.h"#include "PlaneModel.h"#include "ShadowMapping.h"#include "Shader.h"#include "Texture.h"#include "Timer.h"#include <cstring>Go to the source code of this file.
Classes | |
| struct | GeometryProperties |
| struct | WindowProperties |
| struct | LightProperties |
| struct | ShadowMapTextureProperties |
| struct | CubesAndPlaneProgramProperties |
| struct | LightRepresentationProgramProperties |
Functions | |
| void | initializeStructureData () |
| Initialize structure data. More... | |
| void | createObjects () |
| Creates GL objects. More... | |
| void | deleteObjects () |
| Deletes all created GL objects. More... | |
| void | deallocateMemory () |
| void | calculateLookAtMatrix () |
| Calculates depth values written to shadow map texture. More... | |
| void | createDataForObjectsToBeDrawn () |
| Initialize data used for drawing the scene. More... | |
| void | initializeData () |
| Initialize the data used for rendering. Store data in buffer objects so that it can be used during draw calls. More... | |
| void | setUpAndUseProgramObject (GLint programId, const char *fragmentShaderFileName, const char *vertexShaderFileName) |
| Create, compile and attach vertex and fragment shaders to previously created program object, link and set program object to be used. More... | |
| void | setupCubesAndPlaneProgram () |
| Create a program that will be used to convert vertices into eye-space and then rasterize cubes and plane. More... | |
| void | setupLightRepresentationProgram () |
| Create a program that will be used to rasterize the geometry of light cube. More... | |
| void | draw (bool hasShadowMapBeenCalculated) |
| Draw geometry. More... | |
| void | createShadowMap () |
| Draw the scene from the light's point of view to calculate depth values (calculated values are held in shadow map texture). More... | |
| void | drawScene () |
| Draw the lit shadow-mapped scene from the camera's point of view. More... | |
| void | renderFrame () |
| Function called to render the new frame into the back buffer. More... | |
| void | setupGraphics (int width, int height) |
| void | uninit () |
| JNIEXPORT void JNICALL | Java_com_arm_malideveloper_openglessdk_shadowMapping_NativeLibrary_init (JNIEnv *env, jobject obj, jint width, jint height) |
| JNIEXPORT void JNICALL | Java_com_arm_malideveloper_openglessdk_shadowMapping_NativeLibrary_step (JNIEnv *env, jobject obj) |
| JNIEXPORT void JNICALL | Java_com_arm_malideveloper_openglessdk_shadowMapping_NativeLibrary_uninit (JNIEnv *env, jobject obj) |
Demonstration of shadow mapping functionality using OpenGL ES 3.0.
Application displays two cubes on a plane which are lit with directional and spot lights. Location and direction of the spot light source (represented by a small yellow cube flying above the scene) in 3D space are regularly updated. The cube and planes models are shadow receivers, but only the cubes are shadow casters. The application uses shadow mapping for rendering and displaying shadows.
Definition in file Native.cpp.
| void calculateLookAtMatrix | ( | ) |
Calculates depth values written to shadow map texture.
Fills viewMatrixForShadowMapPass matrix with data. That matrix is then used to set the viewMatrix in the shader from the light's point of view.
Definition at line 397 of file Native.cpp.
| void createDataForObjectsToBeDrawn | ( | ) |
Initialize data used for drawing the scene.
Retrieve the coordinates of the triangles that make up the cubes and the plane and their normal vectors.
Definition at line 423 of file Native.cpp.
| void createObjects | ( | ) |
Creates GL objects.
Definition at line 226 of file Native.cpp.
| void createShadowMap | ( | ) |
Draw the scene from the light's point of view to calculate depth values (calculated values are held in shadow map texture).
Definition at line 772 of file Native.cpp.
| void deallocateMemory | ( | ) |
brief Cleans up. Frees all allocated memory.
Definition at line 333 of file Native.cpp.
| void deleteObjects | ( | ) |
Deletes all created GL objects.
Definition at line 308 of file Native.cpp.
| void draw | ( | bool | hasShadowMapBeenCalculated | ) |
Draw geometry.
| [in] | hasShadowMapBeenCalculated | If true, will draw the whole scene from the camera's point of view. If false, will draw only the scene cubes and the plane from the light's point of view. |
Definition at line 677 of file Native.cpp.
| void drawScene | ( | ) |
Draw the lit shadow-mapped scene from the camera's point of view.
Definition at line 817 of file Native.cpp.
| void initializeData | ( | ) |
Initialize the data used for rendering. Store data in buffer objects so that it can be used during draw calls.
Definition at line 459 of file Native.cpp.
| void initializeStructureData | ( | ) |
Initialize structure data.
Definition at line 151 of file Native.cpp.
| JNIEXPORT void JNICALL Java_com_arm_malideveloper_openglessdk_shadowMapping_NativeLibrary_init | ( | JNIEnv * | env, |
| jobject | obj, | ||
| jint | width, | ||
| jint | height | ||
| ) |
Definition at line 943 of file Native.cpp.
| JNIEXPORT void JNICALL Java_com_arm_malideveloper_openglessdk_shadowMapping_NativeLibrary_step | ( | JNIEnv * | env, |
| jobject | obj | ||
| ) |
Definition at line 956 of file Native.cpp.
| JNIEXPORT void JNICALL Java_com_arm_malideveloper_openglessdk_shadowMapping_NativeLibrary_uninit | ( | JNIEnv * | env, |
| jobject | obj | ||
| ) |
Definition at line 949 of file Native.cpp.
Function called to render the new frame into the back buffer.
Definition at line 841 of file Native.cpp.
| void setUpAndUseProgramObject | ( | GLint | programId, |
| const char * | fragmentShaderFileName, | ||
| const char * | vertexShaderFileName | ||
| ) |
Create, compile and attach vertex and fragment shaders to previously created program object, link and set program object to be used.
| [in] | programId | Previously created program object name to be used. |
| [in] | fragmentShaderFileName | File name of a fragment shader to be attached to the program object. |
| [in] | vertexShaderFileName | File name of a vertex shader to be attached to the program object. |
Definition at line 525 of file Native.cpp.
| void setupCubesAndPlaneProgram | ( | ) |
Create a program that will be used to convert vertices into eye-space and then rasterize cubes and plane.
Definition at line 546 of file Native.cpp.
Definition at line 873 of file Native.cpp.
| void setupLightRepresentationProgram | ( | ) |
Create a program that will be used to rasterize the geometry of light cube.
Definition at line 629 of file Native.cpp.
| void uninit | ( | ) |
Definition at line 929 of file Native.cpp.
| const Vec3f cameraPosition = {0.0f, 0.0f, 30.0f} |
Definition at line 140 of file Native.cpp.
| Matrix cameraProjectionMatrix |
Definition at line 137 of file Native.cpp.
| struct GeometryProperties cube |
| GLuint cubeCoordinatesBufferObjectId = 0 |
Definition at line 123 of file Native.cpp.
| GLuint cubeNormalsBufferObjectId = 0 |
Definition at line 124 of file Native.cpp.
| struct CubesAndPlaneProgramProperties cubesAndPlaneProgram |
| const float cubesColor[] = {0.8f, 0.1f, 0.2f, 0.6f} |
Definition at line 145 of file Native.cpp.
| GLuint cubesVertexArrayObjectId = 0 |
Definition at line 131 of file Native.cpp.
| struct LightProperties light |
| Matrix lightProjectionMatrix |
Definition at line 138 of file Native.cpp.
| struct GeometryProperties lightRepresentation |
| GLuint lightRepresentationCoordinatesBufferObjectId = 0 |
Definition at line 125 of file Native.cpp.
| GLuint lightRepresentationCoordinatesVertexArrayObjectId = 0 |
Definition at line 132 of file Native.cpp.
| struct LightRepresentationProgramProperties lightRepresentationProgram |
| Vec3f lookAtPoint = {0.0f, 0.0f, 0.0f} |
Definition at line 141 of file Native.cpp.
| struct GeometryProperties plane |
| const float planeColor[] = {0.2f, 0.4f, 0.8f, 0.6f} |
Definition at line 146 of file Native.cpp.
| GLuint planeCoordinatesBufferObjectId = 0 |
Definition at line 126 of file Native.cpp.
| GLuint planeNormalsBufferObjectId = 0 |
Definition at line 127 of file Native.cpp.
| GLuint planeVertexArrayObjectId = 0 |
Definition at line 133 of file Native.cpp.
| struct ShadowMapTextureProperties shadowMap |
| Timer timer |
Definition at line 120 of file Native.cpp.
| GLuint uniformBlockDataBufferObjectId = 0 |
Definition at line 128 of file Native.cpp.
| Matrix viewMatrixForShadowMapPass |
Definition at line 142 of file Native.cpp.
| struct WindowProperties window |