public void bindUniforms(List<Light> lights) {
if (lights.size() > 10) {
System.err.println("Too many lights.");
return;
}
float[] positions = new float[10 * 2];
float[] colors = new float[10 * 3];
float[] intensities = new float[10];
for (int i = 0; i < lights.size() * 2; i += 2) {
positions[i] = lights.get(i >> 1).getX() - lights.get(i >> 1).getXOffset();
positions[i + 1] =
GameSettings.height - lights.get(i >> 1).getY() + lights.get(i >> 1).getYOffset();
}
for (int i = 0; i < lights.size(); i++) {
intensities[i] = lights.get(i).intensity;
}
for (int i = 0; i < lights.size() * 3; i += 3) {
colors[i] = lights.get(i / 3).vc.x;
colors[i + 1] = lights.get(i / 3).vc.y;
colors[i + 2] = lights.get(i / 3).vc.z;
}
shader.bind();
int uniform = glGetUniformLocation(shader.getID(), "lightPosition");
glUniform2(uniform, Buffer.createFloatBuffer(positions));
uniform = glGetUniformLocation(shader.getID(), "lightColor");
glUniform3(uniform, Buffer.createFloatBuffer(colors));
uniform = glGetUniformLocation(shader.getID(), "lightIntensity");
glUniform1(uniform, Buffer.createFloatBuffer(intensities));
shader.release();
}
@Override
protected void display() {
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glClearDepth(1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
MatrixStack modelMatrix = new MatrixStack();
modelMatrix.setMatrix(viewPole.calcMatrix());
Vec4 lightDirCameraSpace = Mat4.mul(modelMatrix.top(), lightDirection);
glUseProgram(whiteDiffuseColor.theProgram);
glUniform3(whiteDiffuseColor.dirToLightUnif, lightDirCameraSpace.fillAndFlipBuffer(vec4Buffer));
glUseProgram(vertexDiffuseColor.theProgram);
glUniform3(
vertexDiffuseColor.dirToLightUnif, lightDirCameraSpace.fillAndFlipBuffer(vec4Buffer));
glUseProgram(0);
{
modelMatrix.push();
// Render the ground plane.
{
modelMatrix.push();
glUseProgram(whiteDiffuseColor.theProgram);
glUniformMatrix4(
whiteDiffuseColor.modelToCameraMatrixUnif,
false,
modelMatrix.top().fillAndFlipBuffer(mat4Buffer));
Mat3 normMatrix = new Mat3(modelMatrix.top());
glUniformMatrix3(
whiteDiffuseColor.normalModelToCameraMatrixUnif,
false,
normMatrix.fillAndFlipBuffer(mat3Buffer));
glUniform4f(whiteDiffuseColor.lightIntensityUnif, 1.0f, 1.0f, 1.0f, 1.0f);
planeMesh.render();
glUseProgram(0);
modelMatrix.pop();
}
// Render the Cylinder
{
modelMatrix.push();
modelMatrix.applyMatrix(objtPole.calcMatrix());
if (drawColoredCyl) {
glUseProgram(vertexDiffuseColor.theProgram);
glUniformMatrix4(
vertexDiffuseColor.modelToCameraMatrixUnif,
false,
modelMatrix.top().fillAndFlipBuffer(mat4Buffer));
Mat3 normMatrix = new Mat3(modelMatrix.top());
glUniformMatrix3(
vertexDiffuseColor.normalModelToCameraMatrixUnif,
false,
normMatrix.fillAndFlipBuffer(mat3Buffer));
glUniform4f(vertexDiffuseColor.lightIntensityUnif, 1.0f, 1.0f, 1.0f, 1.0f);
cylinderMesh.render("lit-color");
} else {
glUseProgram(whiteDiffuseColor.theProgram);
glUniformMatrix4(
whiteDiffuseColor.modelToCameraMatrixUnif,
false,
modelMatrix.top().fillAndFlipBuffer(mat4Buffer));
Mat3 normMatrix = new Mat3(modelMatrix.top());
glUniformMatrix3(
whiteDiffuseColor.normalModelToCameraMatrixUnif,
false,
normMatrix.fillAndFlipBuffer(mat3Buffer));
glUniform4f(whiteDiffuseColor.lightIntensityUnif, 1.0f, 1.0f, 1.0f, 1.0f);
cylinderMesh.render("lit");
}
glUseProgram(0);
modelMatrix.pop();
}
modelMatrix.pop();
}
}
