public static float[] calcNormalMatrix(float matrix[]) {
float[] tmp = new float[32];
for (int i = 0; i < 15; ++i) {
if (i % 4 != 3 && i < 12) {
tmp[i] = matrix[i];
} else {
tmp[i] = 0.0f;
}
}
tmp[15] = 1.0f;
Matrix.invertM(tmp, 16, tmp, 0);
Matrix.transposeM(tmp, 0, tmp, 0);
float[] ret = new float[9];
for (int i = 0; i < 9; ++i) {
ret[i] = tmp[i + i / 3];
}
return ret;
}
public void draw(float[] mvMatrix, float[] pMatrix) {
float[] normalMatrix = new float[16];
float[] tmpMatrix = new float[16];
Matrix.invertM(tmpMatrix, 0, mvMatrix, 0);
Matrix.transposeM(normalMatrix, 0, tmpMatrix, 0);
// Add program to OpenGL ES environment
GLES20.glUseProgram(shaderProgram);
// vertex position attribute array
int mPositionHandle = GLES20.glGetAttribLocation(shaderProgram, "vPosition");
GLES20.glEnableVertexAttribArray(mPositionHandle);
GLES20.glVertexAttribPointer(
mPositionHandle, COORDS_PER_VERTEX, GLES20.GL_FLOAT, false, vertexStride, vertexBuffer);
// vertex normal attribute array
int mNormalHandle = GLES20.glGetAttribLocation(shaderProgram, "vNormal");
GLES20.glEnableVertexAttribArray(mNormalHandle);
GLES20.glVertexAttribPointer(
mNormalHandle, COORDS_PER_VERTEX, GLES20.GL_FLOAT, false, vertexStride, normalBuffer);
// vertex UV attribute array
int mUVHandle = GLES20.glGetAttribLocation(shaderProgram, "vTexCoord");
GLES20.glEnableVertexAttribArray(mUVHandle);
GLES20.glVertexAttribPointer(mUVHandle, 2, GLES20.GL_FLOAT, false, 8, uvBuffer);
// material data
int mColorHandle = GLES20.glGetUniformLocation(shaderProgram, "Color");
int mAmbientHandle = GLES20.glGetUniformLocation(shaderProgram, "Ambient");
int mDiffuseHandle = GLES20.glGetUniformLocation(shaderProgram, "Diffuse");
int mSpecularHandle = GLES20.glGetUniformLocation(shaderProgram, "Specular");
int mShininessHandle = GLES20.glGetUniformLocation(shaderProgram, "Shininess");
GLES20.glUniform4fv(mColorHandle, 1, color, 0);
GLES20.glUniform3fv(mAmbientHandle, 1, ambient, 0);
GLES20.glUniform3fv(mDiffuseHandle, 1, diffuse, 0);
GLES20.glUniform3fv(mSpecularHandle, 1, specular, 0);
GLES20.glUniform1f(mShininessHandle, shininess);
// transformation matrices
int mMVMatrixHandle = GLES20.glGetUniformLocation(shaderProgram, "MVMatrix");
int mPMatrixHandle = GLES20.glGetUniformLocation(shaderProgram, "PMatrix");
int mNormalMatrixHandle = GLES20.glGetUniformLocation(shaderProgram, "NormalMatrix");
GLES20.glUniformMatrix4fv(mMVMatrixHandle, 1, false, mvMatrix, 0);
GLES20.glUniformMatrix4fv(mPMatrixHandle, 1, false, pMatrix, 0);
GLES20.glUniformMatrix4fv(mNormalMatrixHandle, 1, false, normalMatrix, 0);
// lighting data
int mLightPosHandle = GLES20.glGetUniformLocation(shaderProgram, "LightPos");
int mLightColorHandle = GLES20.glGetUniformLocation(shaderProgram, "LightColor");
GLES20.glUniform4fv(mLightPosHandle, 1, lightPosition, 0);
GLES20.glUniform3fv(mLightColorHandle, 1, lightColor, 0);
// texture
GLES20.glActiveTexture(GLES20.GL_TEXTURE0);
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, textures[0]);
int mTexHandle = GLES20.glGetUniformLocation(shaderProgram, "Tex");
GLES20.glUniform1i(mTexHandle, 0);
// Draw the object
GLES20.glDrawElements(
GLES20.GL_TRIANGLES, drawOrder.length, GLES20.GL_UNSIGNED_SHORT, drawListBuffer);
// Disable arrays
GLES20.glDisableVertexAttribArray(mPositionHandle);
GLES20.glDisableVertexAttribArray(mNormalHandle);
GLES20.glDisableVertexAttribArray(mUVHandle);
}
private void drawRoad(int program) {
Matrix.setIdentityM(mMMatrix, 0);
Matrix.multiplyMM(mMVPMatrix, 0, mVMatrix, 0, mMMatrix, 0); // View
Matrix.multiplyMM(mMVPMatrix, 0, mProjMatrix, 0, mMVPMatrix, 0); // Proj
// send to the shader
GLES20.glUniformMatrix4fv(
GLES20.glGetUniformLocation(program, "uMVPMatrix"), 1, false, mMVPMatrix, 0);
// Create the normal modelview matrix
// Invert + transpose of mvpmatrix
Matrix.invertM(normalMatrix, 0, mMVPMatrix, 0);
Matrix.transposeM(normalMatrix, 0, normalMatrix, 0);
// send to the shader
GLES20.glUniformMatrix4fv(
GLES20.glGetUniformLocation(program, "normalMatrix"), 1, false, mMVPMatrix, 0);
/** * DRAWING OBJECT * */
// Get buffers from mesh
Object3D ob = this._objects[this.ROAD];
Mesh mesh = ob.getMesh();
FloatBuffer _vb = mesh.get_vb();
ShortBuffer _ib = mesh.get_ib();
short[] _indices = mesh.get_indices();
/*float[] myVertices = {
-20, 0, -20,
-20f, 0, 20,
20, 0, -20,
20, 0, 20
};
_vb = ByteBuffer.allocateDirect(myVertices.length
* FLOAT_SIZE_BYTES).order(ByteOrder.nativeOrder()).asFloatBuffer();
_vb.put(myVertices);*/
// Vertex buffer
// the vertex coordinates
_vb.position(TRIANGLE_VERTICES_DATA_POS_OFFSET);
GLES20.glVertexAttribPointer(
GLES20.glGetAttribLocation(program, "aPosition"),
3,
GLES20.GL_FLOAT,
false,
TRIANGLE_VERTICES_DATA_STRIDE_BYTES,
_vb);
GLES20.glEnableVertexAttribArray(GLES20.glGetAttribLocation(program, "aPosition"));
// the normal info
_vb.position(TRIANGLE_VERTICES_DATA_NOR_OFFSET);
GLES20.glVertexAttribPointer(
GLES20.glGetAttribLocation(program, "aNormal"),
3,
GLES20.GL_FLOAT,
false,
TRIANGLE_VERTICES_DATA_STRIDE_BYTES,
_vb);
GLES20.glEnableVertexAttribArray(GLES20.glGetAttribLocation(program, "aNormal"));
// Texture info
// bind textures
if (ob.hasTexture()) { // && enableTexture) {
// number of textures
int[] texIDs = ob.get_texID();
for (int i = 0; i < _texIDs.length; i++) {
GLES20.glActiveTexture(GLES20.GL_TEXTURE0 + i);
// Log.d("TEXTURE BIND: ", i + " " + texIDs[i]);
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, texIDs[i]);
GLES20.glUniform1i(GLES20.glGetUniformLocation(program, "texture" + (i + 1)), i);
}
}
// enable texturing? [fix - sending float is waste]
GLES20.glUniform1f(
GLES20.glGetUniformLocation(program, "hasTexture") /*shader.hasTextureHandle*/,
ob.hasTexture() && enableTexture ? 2.0f : 0.0f);
// texture coordinates
_vb.position(TRIANGLE_VERTICES_DATA_TEX_OFFSET);
GLES20.glVertexAttribPointer(
GLES20.glGetAttribLocation(program, "textureCoord") /*shader.maTextureHandle*/,
2,
GLES20.GL_FLOAT,
false,
TRIANGLE_VERTICES_DATA_STRIDE_BYTES,
_vb);
GLES20.glEnableVertexAttribArray(
GLES20.glGetAttribLocation(
program, "textureCoord")); // GLES20.glEnableVertexAttribArray(shader.maTextureHandle);
// Draw with indices
GLES20.glDrawElements(GLES20.GL_TRIANGLES, _indices.length, GLES20.GL_UNSIGNED_SHORT, _ib);
checkGlError("glDrawElements");
/** END DRAWING OBJECT ** */
}
private void drawCar(int program, float[] startPos) {
Matrix.setIdentityM(mMMatrix, 0);
Matrix.setIdentityM(mTransMatrix, 0);
// Képernyõ Y tengely
if (Math.abs(mDY) < 2) mDY = 0;
if (Math.abs(mDY) <= 250) {
accelY = -1 * mDY * 2;
} else {
if (mDY < 0) mDY = -250f;
if (mDY > 0) mDY = 250f;
}
distanceY += accelY;
Log.d("mDY:", String.valueOf(mDY));
// Képernyõ X tengely
if (Math.abs(mDX) < 2) mDX = 0;
float[] forward = {(float) Math.cos(mDX / 50), 0.0f, (float) Math.sin(mDX / 50)};
// lookAt
lookAt[0] = eyePos[0] + 25 * forward[0];
lookAt[1] = eyePos[1] + 25 * forward[1];
lookAt[2] = eyePos[2] + 25 * forward[2];
// eyePos
eyePos[0] = 0.0f + distanceY / 1000 * forward[0];
eyePos[2] = 25.0f + distanceY / 1000 * forward[2];
Matrix.setLookAtM(
mVMatrix, 0, eyePos[0], eyePos[1], eyePos[2], lookAt[0], lookAt[1], lookAt[2], 0.0f, 1.0f,
0.0f);
// Kormányzás
startPos[0] = eyePos[0] + 5 * forward[0];
startPos[2] = eyePos[2] + 5 * forward[2];
Matrix.translateM(mTransMatrix, 0, startPos[0], startPos[1], startPos[2]);
Matrix.multiplyMM(mMMatrix, 0, mMMatrix, 0, mTransMatrix, 0); // Translate
Matrix.multiplyMM(mMVPMatrix, 0, mVMatrix, 0, mMMatrix, 0); // View
Matrix.multiplyMM(mMVPMatrix, 0, mProjMatrix, 0, mMVPMatrix, 0); // Proj
// send to the shader
GLES20.glUniformMatrix4fv(
GLES20.glGetUniformLocation(program, "uMVPMatrix"), 1, false, mMVPMatrix, 0);
// Create the normal modelview matrix
// Invert + transpose of mvpmatrix
Matrix.invertM(normalMatrix, 0, mMVPMatrix, 0);
Matrix.transposeM(normalMatrix, 0, normalMatrix, 0);
// send to the shader
GLES20.glUniformMatrix4fv(
GLES20.glGetUniformLocation(program, "normalMatrix"), 1, false, mMVPMatrix, 0);
/** * DRAWING OBJECT * */
// Get buffers from mesh
Object3D ob = this._objects[this.CUBE];
Mesh mesh = ob.getMesh();
FloatBuffer _vb = mesh.get_vb();
ShortBuffer _ib = mesh.get_ib();
short[] _indices = mesh.get_indices();
// Vertex buffer
// the vertex coordinates
_vb.position(TRIANGLE_VERTICES_DATA_POS_OFFSET);
GLES20.glVertexAttribPointer(
GLES20.glGetAttribLocation(program, "aPosition"),
3,
GLES20.GL_FLOAT,
false,
TRIANGLE_VERTICES_DATA_STRIDE_BYTES,
_vb);
GLES20.glEnableVertexAttribArray(GLES20.glGetAttribLocation(program, "aPosition"));
// the normal info
_vb.position(TRIANGLE_VERTICES_DATA_NOR_OFFSET);
GLES20.glVertexAttribPointer(
GLES20.glGetAttribLocation(program, "aNormal"),
3,
GLES20.GL_FLOAT,
false,
TRIANGLE_VERTICES_DATA_STRIDE_BYTES,
_vb);
GLES20.glEnableVertexAttribArray(GLES20.glGetAttribLocation(program, "aNormal"));
// Texture info
// bind textures
if (ob.hasTexture()) { // && enableTexture) {
// number of textures
int[] texIDs = ob.get_texID();
for (int i = 0; i < _texIDs.length; i++) {
GLES20.glActiveTexture(GLES20.GL_TEXTURE0 + i);
// Log.d("TEXTURE BIND: ", i + " " + texIDs[i]);
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, texIDs[i]);
GLES20.glUniform1i(GLES20.glGetUniformLocation(program, "texture" + (i + 1)), i);
}
}
// enable texturing? [fix - sending float is waste]
GLES20.glUniform1f(
GLES20.glGetUniformLocation(program, "hasTexture") /*shader.hasTextureHandle*/,
ob.hasTexture() && enableTexture ? 2.0f : 0.0f);
// texture coordinates
_vb.position(TRIANGLE_VERTICES_DATA_TEX_OFFSET);
GLES20.glVertexAttribPointer(
GLES20.glGetAttribLocation(program, "textureCoord") /*shader.maTextureHandle*/,
2,
GLES20.GL_FLOAT,
false,
TRIANGLE_VERTICES_DATA_STRIDE_BYTES,
_vb);
GLES20.glEnableVertexAttribArray(
GLES20.glGetAttribLocation(
program, "textureCoord")); // GLES20.glEnableVertexAttribArray(shader.maTextureHandle);
// Draw with indices
GLES20.glDrawElements(GLES20.GL_TRIANGLES, _indices.length, GLES20.GL_UNSIGNED_SHORT, _ib);
checkGlError("glDrawElements");
/** END DRAWING OBJECT ** */
}